Low Coefficient of Friction Laminates

Abstract

The present disclosure provides a laminate. The laminate includes a first film and a second film, wherein the first film is laminated to the second film. The first film includes a sealant layer containing (A) an ethylene-based polymer; and (B) a slip agent blend containing (i) a first polydimethylsiloxane having a number average molecular weight (Mn) from 30,000 g/mol to less than 300,000 g/mol; and (ii) a second polydimethylsiloxane having a number average molecular weight (Mn) from 300,000 g/mol to 2,000,000 g/mol.

Claims

1. A laminate comprising: a first film comprising a sealant layer comprising (A) an ethylene-based polymer; (B) a slip agent blend comprising (i) a first polydimethylsiloxane (PDMS) having a number average molecular weight (Mn) from 30,000 g/mol to less than 300,000 g/mol; (ii) a second polydimethylsiloxane (PDMS) having a number average molecular weight (Mn) from 300,000 g/mol to 2,000,000 g/mol; and a second film, wherein the first film is laminated to the second film.

2. The laminate of claim 1, wherein the first PDMS has a Mn from 30,000 g/mol to less than 50,000 g/mol, and the second PDMS has a Mn from 300,000 g/mol to 550,000 g/mol.

3. The laminate of claim 1, wherein the slip agent blend comprises: (i) from 1 wt % to less than 50 wt % of the first PDMS; and (ii) from greater than 50 wt % to 99 wt % of the second PDMS, based on the total weight of the slip agent blend.

4. The laminate of claim 1, wherein the ethylene-based polymer is an ethylene/α-olefin copolymer.

5. The laminate of claim 1, wherein the sealant layer comprises from 0.1 wt % to 5.0 wt % of the slip agent blend, based on the total weight of the sealant layer.

6. The laminate of claim 1, wherein the sealant layer comprises: (i) from 0.01 wt % to less than 2.5 wt % of the first PDMS; and (ii) from greater than 0.05 wt % to 4.95 wt % of the second PDMS, based on the total weight of the sealant layer.

7. The laminate of claim 1, wherein the ethylene-based polymer comprises an ethylene plastomer/elastomer and a low density polyethylene (LDPE).

8. The laminate of claim 1, wherein the second film is a monolayer film.

9. The laminate of claim 1, wherein the second film comprises a layer comprising a component selected from the group consisting of polyethylene terephthalate (PET), ethylene vinyl alcohol (EVOH) copolymer, a polyamide, or a combination thereof.

10. The laminate of claim 1 further comprising an adhesive layer in contact with the first film and the second film.

11. The laminate of claim 10, wherein the adhesive layer comprises an adhesive selected from the group consisting of a polyether adhesive, a polyurethane adhesive, or a combination thereof.

12. The laminate of claim 10, wherein the adhesive layer comprises a polyether-based polyurethane adhesive and the laminate has a COF at 12 m/min from 0.20 to 0.55.

13. The laminate of claim 10, wherein the adhesive layer comprises a polyester-based polyurethane adhesive and the laminate has a COF at 12 m/min from 0.20 to 0.50.

14. The laminate of claim 1, wherein the first film is a multilayer film comprising a core layer in contact with the sealant layer; and a release layer in contact with the core layer.

15. The laminate of claim 14 comprising: the first film comprising the sealant layer comprising (A) an ethylene-based polymer; (B) the slip agent blend comprising (i) from 1 wt % to less than 50 wt % of the first PDMS; (ii) from greater than 50 wt % to 99 wt % of the second PDMS; a core layer in contact with the sealant layer, the core layer comprising a second ethylene-based polymer selected from the group consisting of a linear low density polyethylene (LLDPE), a low density polyethylene (LDPE), and combinations thereof; a release layer in contact with the core layer, the release layer comprising a third ethylene-based polymer selected from the group consisting of a linear low density polyethylene (LLDPE), a low density polyethylene (LDPE), and combinations thereof; the second film comprising a layer comprising polyethylene terephthalate (PET); and an outermost surface of the sealant layer is an outermost surface of the laminate and the laminate has a coefficient of friction at 12 m/min of less than 0.55.

Description

DETAILED DESCRIPTION

[0044] The present disclosure provides a laminate. The laminate includes a first film and a second film, wherein the first film is laminated to a second film. The first film includes a sealant layer containing (A) an ethylene-based polymer; and (B) a slip agent blend containing (i) a first polydimethylsiloxane having a number average molecular weight (Mn) from 30,000 g/mol to less than 300,000 g/mol; and (ii) a second polydimethylsiloxane having a number average molecular weight (Mn) from 300,000 g/mol to 2,000,000 g/mol.

First Film

[0045] The laminate includes a first film. The first film includes a sealant layer.

[0046] The first film may be a monolayer film or a multilayer film. The first multilayer film contains two layers, or more than two layers. For example, the first multilayer film can have two, three, four, five, six, seven, eight, nine, ten, eleven, or more layers. In an embodiment, the first multilayer film contains only two layers, or only three layers. In an embodiment, the first film is a multilayer film with a sealant layer, a core layer, and a release layer, wherein the core layer is in contact with the sealant layer and the release layer is in contact with the core layer.

1. Sealant Layer

[0047] The first film includes a sealant layer. The sealant layer contains (A) an ethylene-based polymer; and (B) a slip agent blend containing (i) a first polydimethylsiloxane having a number average molecular weight (Mn) from 30,000 g/mol to less than 300,000 g/mol; and (ii) a second polydimethylsiloxane having a number average molecular weight (Mn) from 300,000 g/mol to 2,000,000 g/mol; and, optionally, (C) an additive.

[0048] The sealant layer has two opposing surfaces. In an embodiment, the sealant layer is a continuous layer with two opposing surfaces.

A. Ethylene-Based Polymer

[0049] The sealant layer contains an ethylene-based polymer. Nonlimiting examples of suitable ethylene-based polymer include LDPE and linear polyethylene. Nonlimiting examples of linear polyethylene include LLDPE, ULDPE, VLDPE, EPE, ethylene/α-olefin multi-block copolymers (also known as olefin block copolymer (OBC)), m-LLDPE, substantially linear, or linear, plastomers/elastomers, HDPE, and combinations thereof. Nonlimiting examples of suitable ethylene-based polymer also include ethylene/α-olefin interpolymer and ethylene/α-olefin copolymer. Nonlimiting examples of suitable α-olefins include C.sub.3-C.sub.20α-olefins, or C.sub.4-C.sub.20α-olefins, or C.sub.3-C.sub.10 α-olefins, or C.sub.4-C.sub.10 α-olefins, or C.sub.4-C.sub.8 α-olefins. Representative α-olefins include propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene and 1-octene. In an embodiment, the ethylene-based polymer does not contain an aromatic comonomer polymerized therein. In an embodiment, the ethylene-based polymer is an ethylene/octene interpolymer.

[0050] In an embodiment, the ethylene-based polymer contains greater than 50 wt % units derived from ethylene, or from 51 wt %, or 55 wt %, or 60 wt % to 70 wt %, or 80 wt %, or 90 wt %, or 95 wt %, or 99 wt %, or 100 wt % units derived from ethylene, based on the weight of the ethylene-based polymer. In an embodiment, the ethylene-based polymer contains a reciprocal amount of units derived from an α-olefin comonomer, or from less than 50 wt %, or 49 wt %, or 45 wt %, or 40 wt % to 30 wt %, or 20 wt %, or 10 wt %, or 5 wt %, or 1 wt %, or 0 wt % units derived from an α-olefin comonomer, based on the weight of the ethylene-based polymer.

[0051] In an embodiment, the ethylene-based polymer is an ethylene plastomer/elastomer. The ethylene plastomer/elastomer is an ethylene/α-olefin copolymer consisting of units derived from ethylene and a C.sub.3-C.sub.10 α-olefin comonomer, or a C.sub.4-C.sub.8 α-olefin comonomer, or a C.sub.6-C.sub.8 α-olefin comonomer and optional additives. In an embodiment, the ethylene plastomer/elastomer is an ethylene/C.sub.4-C.sub.8 α-olefin copolymer having one, some, or all of the following properties:

[0052] (a) a density from 0.870 g/cc, or 0.880 g/cc, or 0.890 g/cc to 0.900 g/cc, or 0.902 g/cc, or 0.904 g/cc, or 0.909 g/cc, or 0.910 g/cc, or 0.917 g/cc; and/or

[0053] (b) a melt index from a melt index from 0.1 g/10 min, or 1 g/10 min to 1.5 g/10 min, or 2.0 g/10 min, or 3.0 g/10 min, or 5.0 g/10 min, or 6.0 g/10 min, or 8.0 g/10 min, or 10 g/10 min, or 15 g/10 min, or 20 g/10 min, or 30 g/10 min, or 40 g/10 min, or 50 g/10 min, or 100 g/10 min, or 150 g/10 min, or 200 g/10 min, or 250 g/10 min, or 300 g/10 min; and/or

[0054] (c) a melting point (Tm) from 40° C., or 45° C., or 50° C., or 55° C., or 60° C., or 65° C., or 70° C., or 75° C. to 80° C., or 85° C., or 90° C., or 95° C., or 100° C., or 105° C., or 110° C., or 115° C., or 120° C.

[0055] In an embodiment, the ethylene plastomer/elastomer is an ethylene/1-octene copolymer with a density of 0.902 g/cc, a melt index of 1.0 g/10 min, and a melting point of 99° C. (e.g., AFFINITY™ PL 1880G, available from The Dow Chemical Company)

[0056] In an embodiment, the ethylene-based polymer is a low density polyethylene (LDPE). The LDPE is an ethylene homopolymer or an ethylene/α-olefin copolymer consisting of units derived from ethylene and a C.sub.3-C.sub.10 α-olefin comonomer, or a C.sub.4-C.sub.8 α-olefin comonomer, or a C.sub.6-C.sub.8 α-olefin comonomer. The LDPE has one or both of the following properties: (a) a density from 0.915 g/cc, or 0.920 g/cc, or 0.925 g/cc to 0.930 g/cc, or 0.935 g/cc, or 0.940 g/cc; and/or (b) a melt index from a melt index from 0.1 g/10 min, or 1 g/10 min, or 1.5 g/10 min, or 2.0 g/10 min to 3.0 g/10 min, or 5.0 g/10 min, or 6.0 g/10 min, or 8.0 g/10 min, or 10 g/10 min, or 15 g/10 min, or 20 g/10 min, or 30 g/10 min, or 40 g/10 min, or 50 g/10 min, or 100 g/10 min.

[0057] The sealant layer may contain more than one ethylene-based polymer. In an embodiment, the sealant layer includes at least two ethylene-based polymers, wherein each ethylene-based polymer differs from one another compositionally, structurally, and/or physically. In an embodiment, the sealant layer contains an ethylene plastomer/elastomer and a LDPE. In another embodiment, the sealant layer contains an ethylene plastomer/elastomer and a LLDPE.

[0058] In an embodiment, the sealant layer contains from 70 wt %, or 75 wt %, or 80 wt %, or 85 wt %, or 90 wt % to 93 wt %, or 94 wt %, or 95 wt %, or 96 wt %, or 97 wt %, or 98 wt %, or 99 wt %, or 99.9 wt % ethylene-based polymer, based on the total weight of the sealant layer.

[0059] The ethylene-based polymer may comprise two or more embodiments discussed herein.

B. Slip Agent Blend

[0060] The sealant layer contains a slip agent blend. The slip agent blend contains (i) a first polydimethylsiloxane having a number average molecular weight (Mn) from 30,000 g/mol to less than 300,000 g/mol; and (ii) a second polydimethylsiloxane having a number average molecular weight (Mn) from 300,000 g/mol to 2,000,000 g/mol, based on the total weight of the slip agent blend.

[0061] “Polydimethylsiloxane” (“PDMS”) is a polymeric organosilicon compound with the following general Structure (I):

##STR00001##

wherein n is the number of repeating monomer [SiO(CH.sub.3).sub.2] units and n is greater than or equal to 2, or from 2 to 20,000. The PDMS may be unsubstituted or substituted. A “substituted PDMS” is a PDMS in which at least one methyl group of Structure (I) is substituted with a substituent. Nonlimiting examples of substituents include halogen atoms (such as chlorine, fluorine, bromine, and iodine); halogen atom-containing groups (such as chloromethyl groups, perfluorobutyl groups, trifluoroethyl groups, and nonafluorohexyl groups); oxygen atom-containing groups (such as hydroxy groups, alkoxy groups (such as methoxy groups and ethoxy groups), (meth)acrylic epoxy groups, and carboxyl groups); nitrogen atom-containing groups (such as amino-functional groups, amido-functional groups, and cyano-functional groups); sulphur atom-containing groups (such as mercapto groups); hydrogen; C.sub.2-C.sub.10 alkyl groups (such as an ethyl group); C.sub.2-C.sub.10 alkynyl groups; alkenyl groups (such as vinyl groups and hexenyl groups); aryl groups (such as phenyl groups and substituted phenyl groups); cycloalkyl groups (such as cyclohexane groups); and combinations thereof. The substituted methyl group may be a terminal methyl group or a non-terminal methyl group. Nonlimiting examples of suitable substituted PDMS include trialkylsilyl terminated PDMS wherein at least one alkyl is a C.sub.2-C.sub.10 alkyl; dialkylhydroxysilyl terminated PDMS; dialkylhydrogensilyl terminated PDMS; dialkylalkenyl silyl terminated PDMS; and dialkylvinylsilyl terminated PDMS. In an embodiment, the substituted PDMS is a dimethylhydroxysilyl terminated PDMS. In another embodiment, the substituted PDMS is a dimethylvinylsilyl terminated PDMS.

[0062] In an embodiment, the substituted PDMS excludes nitrogen atom-containing groups. In another embodiment, the substituted PDMS excludes epoxy substituent groups.

[0063] In an embodiment, the PDMS is unsubstituted. An “unsubstituted PDMS” is the PDMS of Structure (I) wherein no methyl group in Structure (I) is substituted with a substituent. In an embodiment, the unsubstituted PDMS is a trimethylsilyl terminated PDMS.

(i) First Polydimethylsiloxane

[0064] The slip agent blend contains a first polydimethylsiloxane having a number average molecular weight (Mn) from 30,000 g/mol to less than 300,000 g/mol (a “low Mn” PDMS).

[0065] In an embodiment, the first PDMS (i.e., the low Mn PDMS) has a number average molecular weight (Mn) from 30,000 g/mol, or 40,000 g/mol, or 45,000 g/mol, or 48,000 g/mol to 49,000 g/mol, or 50,000 g/mol, or 55,000 g/mol, or 60,000 g/mol, or 65,000 g/mol, or 70,000 g/mol, or 75,000 g/mol, or 80,000 g/mol, or 90,000 g/mol, or 100,000 g/mol, or 150,000 g/mol, or 200,000 g/mol, or 250,000 g/mol, or 290,000 g/mol, or less than 300,000 g/mol. In an embodiment, the low Mn PDMS has a number average molecular weight (Mn) from 30,000 g/mol, or 35,000 g/mol, or 40,000 g/mol, or 45,000 g/mol, or 48,000 g/mol to 49,000 g/mol, or less than 50,000 g/mol.

[0066] In an embodiment, the low Mn PDMS has a weight average molecular weight (Mw) from 30,000 g/mol, or 40,000 g/mol, or 45,000 g/mol, or 50,000 g/mol, or 55,000 g/mol, or 60,000 g/mol, or 65,000 g/mol, or 70,000 g/mol, or 75,000 g/mol, or 80,000 g/mol, or 90,000 g/mol, or 100,000 g/mol, or 120,000 g/mol to 130,000 g/mol, or 140,000 g/mol, or 150,000 g/mol, or 200,000 g/mol, or 250,000 g/mol, or 290,000 g/mol, or less than 300,000 g/mol.

[0067] In an embodiment, the low Mn PDMS has a molecular weight distribution (Mw/Mn) from 1.0, or 1.5, or 2.0, or 2.1, or 2.2, or 2.3, or 2.4 to 2.5, or 2.6, or 2.7, or 2.8, or 2.9, or 3.0, or 3.5.

[0068] In an embodiment, the low Mn PDMS has the Structure (I) and n is from 2, or 5, or 10, or 50, or 100, or 150, or 200, or 250, or 300, or 350, or 400, or 450, or 500, or 550, or 600, or 650 to 700, or 750, or 800, or 850, or 900, or 950, or 1000, or 1100, or 1200, or 1300, or 1400, or 1500, or 1600, or 1700, or 1800, or 1900, or 2000, or 2500, or 3000, or 3500, or 4000, or 4054.

[0069] In an embodiment, the low Mn PDMS is a dimethylhydroxysilyl terminated PDMS.

[0070] In an embodiment, the low Mn PDMS (such as a dimethylhydroxysilyl terminated PDMS) has a number average molecular weight (Mn) from 30,000 g/mol, or 35,000 g/mol, or 40,000 g/mol, or 45,000 g/mol, or 48,000 g/mol to 49,000 g/mol, or 50,000 g/mol; and the low Mn PDMS has one, some, or all of the following properties:

[0071] (a) a weight average molecular weight (Mw) from 50,000 g/mol, or 55,000 g/mol, or 60,000 g/mol, or 65,000 g/mol, or 70,000 g/mol, or 75,000 g/mol, or 80,000 g/mol, or 90,000 g/mol, or 100,000 g/mol, or 120,000 g/mol to 130,000 g/mol, or 150,000 g/mol; and/or

[0072] (b) a molecular weight distribution (Mw/Mn) from 2.2, or 2.3, or 2.4 to 2.5, or 2.6; and/or

[0073] (c) the low Mn PDMS has the Structure (I) and n is from 2, or 5, or 10, or 50, or 100, or 150, or 200, or 250, or 300, or 350, or 400, or 450, or 500, or 550, or 600, or 650 to 700, or 750, or 800, or 850, or 900, or 950, or 1000, or 1100, or 1200, or 1300, or 1400, or 1500, or 1600, or 1700, or 1800, or 1900, or 2000, or 2500, or 3000, or 3500, or 4000, or 4054.

[0074] The slip agent blend may contain more than one low Mn PDMS.

[0075] The first PDMS (i.e., the low Mn PDMS) may comprise two or more embodiments discussed herein.

(ii) Second Polydimethylsiloxane

[0076] The slip agent blend contains a second polydimethylsiloxane having a number average molecular weight (Mn) from 300,000 g/mol to 2,000,000 g/mol (a “high Mn” PDMS).

[0077] In an embodiment, the second PDMS (i.e., the high Mn PDMS) has a number average molecular weight (Mn) from 300,000 g/mol, or 310,000 g/mol, or 320,000 g/mol, or 330,000 g/mol, or 340,000 g/mol, or 350,000 g/mol to 360,000 g/mol, or 370,000 g/mol, or 380,000 g/mol, or 390,000 g/mol, or 400,000 g/mol, or 450,000 g/mol, or 500,000 g/mol, or 550,000 g/mol, or 600,000 g/mol, or 750,000 g/mol, or 1,000,000 g/mol, or 1,500,000 g/mol, or 2,000,000 g/mol. In an embodiment, the high Mn PDMS has a number average molecular weight (Mn) from 300,000 g/mol, or 310,000 g/mol, or 320,000 g/mol, or 330,000 g/mol, or 340,000 g/mol, or 350,000 g/mol to 360,000 g/mol, or 370,000 g/mol, or 380,000 g/mol, or 390,000 g/mol, or 400,000 g/mol, or 450,000 g/mol, or 500,000 g/mol, or 550,000 g/mol.

[0078] In an embodiment, the high Mn PDMS has a weight average molecular weight (Mw) from 350,000 g/mol, or 360,000 g/mol, or 370,000 g/mol, or 380,000 g/mol, or 390,000 g/mol, or 400,000 g/mol, or 450,000 g/mol, or 500,000 g/mol, or 600,000 g/mol, or 640,000 g/mol to 650,000 g/mol, or 700,000 g/mol, or 750,000 g/mol, or 800,000 g/mol, or 900,000 g/mol, or 1,000,000 g/mol, or 1,500,000 g/mol, or 2,000,000 g/mol.

[0079] In an embodiment, the high Mn PDMS has a molecular weight distribution (Mw/Mn) from 1.0, or 1.5, or 1.8 to 1.9, or 2.0, or 2.1, or 2.2, or 2.3, or 2.4, or 2.5, or 2.6, or 2.7, or 2.8, or 2.9, or 3.0.

[0080] In an embodiment, the high Mn PDMS has the Structure (I) and n is greater than 4054, or from 4054, or 4500 to 5000, or 5500, or 6000, or 6500, or 7000, or 7500, or 8000, or 8500, or 9000, or 9500, or 10000, or 11000, or 12000, or 13000, or 14000, or 15000, or 16000, or 17000, or 18000, or 19000, or 20000, or 21000, or 22000, or 23000, or 24000, or 25000, or 26000, or 27000, or 27027.

[0081] In an embodiment, the high Mn PDMS is a dimethylvinylsilyl terminated PDMS.

[0082] In an embodiment, the high Mn PDMS (such as a dimethylvinylsilyl terminated PDMS) has a number average molecular weight (Mn) from 300,000 g/mol, or 310,000 g/mol, or 320,000 g/mol, or 330,000 g/mol, or 340,000 g/mol, or 350,000 g/mol to 360,000 g/mol, or 370,000 g/mol, or 380,000 g/mol, or 390,000 g/mol, or 400,000 g/mol, or 450,000 g/mol, or 500,000 g/mol, or 550,000 g/mol; and the high Mn PDMS has one, some, or all of the following properties:

[0083] (a) a weight average molecular weight (Mw) from 400,000 g/mol, or 450,000 g/mol, or 500,000 g/mol, or 600,000 g/mol, or 640,000 g/mol to 650,000 g/mol, or 700,000 g/mol, or 750,000 g/mol, or 800,000 g/mol, or 900,000 g/mol, or 1,000,000 g/mol; and/or

[0084] (b) a molecular weight distribution (Mw/Mn) from 1.5, or 1.8 to 1.9, or 2.0, or 2.1; and/or

[0085] (c) the high Mn PDMS has the Structure (I) and n is greater than 4054, or from 4054, or 4500 to 5000, or 5500, or 6000, or 6500, or 7000, or 7500, or 8000, or 8500, or 9000, or 9500, or 10000, or 11000, or 12000, or 13000, or 14000, or 15000, or 16000, or 17000, or 18000, or 19000, or 20000, or 21000, or 22000, or 23000, or 24000, or 25000, or 26000, or 27000, or 27027.

[0086] The slip agent blend may contain more than one high Mn PDMS.

[0087] The second PDMS (i.e., the high Mn PDMS) may comprise two or more embodiments discussed herein.

[0088] In an embodiment, the sealant layer contains from 0.1 wt %, or 0.2 wt %, or 0.3 wt %, or 0.4 wt %, or 0.5 wt %, or 1.0 wt %, or 1.5 wt %, or 1.8 wt % to 2.0 wt %, or 2.3 wt %, or 2.5 wt %, or 2.8 wt %, or 3.0 wt %, or 3.5 wt %, or 4.0 wt %, or 4.5 wt %, or 5.0 wt % of the slip agent blend, based on the total weight of the sealant layer. In another embodiment, the sealant layer contains from 0.5 wt %, or 1.0 wt % to 1.5 wt %, or 2.0 wt %, or 2.5 wt % of the slip agent blend, based on the total weight of the sealant layer. In another embodiment, the sealant layer contains from 0.5 wt %, or 0.8 wt % to 1.0 wt %, or 1.5 wt %, or 2.0 wt %, or 2.5 wt % of the slip agent blend, based on the total weight of the sealant layer. The first PDMS (i.e., the low Mn PDMS) and the second PDMS (i.e., the high Mn PDMS) may be included in the sealant layer as part of a masterbatch in which one or both of the PDMS components is dispersed in a polymer matrix (such as a LDPE matrix). However, the amount of slip agent blend included in the sealant layer refers only to the amount of the first PDMS (i.e., the low Mn PDMS) and the second PDMS (i.e., the high Mn PDMS) included in the sealant layer, and excludes the weight of the polymer matrix of any PDMS masterbatch. In other words, the amount of slip agent blend refers to the combined amount of the first PDMS and the second PDMS included in the sealant layer.

[0089] In an embodiment, the slip agent blend contains from 1 wt % to 99 wt % of the first PDMS (i.e., the low Mn PDMS) and a reciprocal amount, or from 1 wt % to 99 wt % of the second PDMS (i.e., the high Mn PDMS), based on the total weight of the slip agent blend (i.e., based on the combined amount of the first PDMS and the second PDMS). In another embodiment, the slip agent blend contains from 1 wt % to less than 50 wt % of the first PDMS and from greater than 50 wt % to 99 wt % of the second PDMS, based on the total weight of the slip agent blend. In an embodiment, the slip agent blend contains from 1 wt %, or 2 wt %, or 5 wt %, or 10 wt %, or 15 wt %, or 20 wt % to 25 wt %, or 30 wt %, or 35 wt %, or 40 wt %, or 45 wt %, or 49 wt %, or less than 50 wt % of the first PDMS, and a reciprocal amount of the second PDMS, or from greater than 50 wt %, or 51 wt %, or 55 wt %, or 60 wt %, or 65 wt %, or 70 wt %, or 75 wt % to 80 wt %, or 85 wt %, or 90 wt %, or 95 wt %, or 98 wt %, or 99 wt % of the second PDMS, based on the total weight of the slip agent blend. The combined amount of the first PDMS and the second PDMS yields a slip agent blend of 100 wt %.

[0090] In an embodiment, the sealant layer contains from 0.01 wt %, or 0.05 wt %, or 0.10 wt %, or 0.20 wt %, or 0.30 wt %, or 0.40 wt %, or 0.50 wt % to 0.60 wt %, or 0.70 wt %, or 0.80 wt %, or 0.90 wt %, or 1.00 wt %, or 1.50 wt %, or 2.00 wt %, or 2.30 wt %, or 2.40 wt %, or less than 2.50 wt % of the first PDMS (i.e., the low Mn PDMS), based on the total weight of the sealant layer.

[0091] In an embodiment, the sealant layer contains from greater than 0.05 wt %, or 0.08 wt %, or 0.10 wt %, or 0.20 wt %, or 0.30 wt %, or 0.40 wt %, or 0.50 wt %, or 0.80 wt %, or 1.00 wt %, or 1.10 wt %, or 1.20 wt %, or 1.30 wt %, or 1.40 wt %, or 1.50 wt % to 1.60 wt %, or 1.70 wt %, or 1.80 wt %, or 1.90 wt %, or 2.00 wt %, or 2.50 wt %, or 3.00 wt %, or 3.50 wt %, or 4.00 wt %, or 4.50 wt %, or 4.95 wt % of the second PDMS (i.e., the high Mn PDMS), based on the total weight of the sealant layer.

[0092] In an embodiment, the weight ratio of the second PDMS (i.e., the high Mn PDMS) to the first PDMS (i.e., the low Mn PDMS) is from 1.1:1, or 1.5:1, or 2.0:1, or 3.0:1 to 4.0:1, or 5.0:1, or 10:1, or 15:1, or 20:1, or 25:1, or 30:1, or 40:1, or 50:1, or 60:1, or 70:1, or 80:1, or 90:1, or 99:1. In an embodiment, the weight ratio of second PDMS to the first PDMS is 3:1.

[0093] The slip agent blend may comprise two or more embodiments discussed herein.

C. Optional Additive(s)

[0094] In an embodiment, the sealant layer includes one or more optional additives. Nonlimiting examples of suitable additive include antiblock agents, antioxidants, antistatic agents, stabilizing agents, nucleating agents, colorants, pigments, ultra violet (UV) absorbers or stabilizers, flame retardants, compatibilizers, plasticizers, fillers, processing aids, antifog additive, crosslinking agents (e.g., peroxides), and combinations thereof.

[0095] In an embodiment, the sealant layer includes an antiblock agent. An “antiblock agent” is a compound that minimizes, or prevents, blocking (i.e., adhesion) between two adjacent layers of film by creating a microscopic roughening of the film layer surface, which reduces the available contact area between adjacent layers. The antiblock agent may be organic or inorganic. Nonlimiting examples of suitable antiblock agents include silica, talc, calcium carbonate, and combinations thereof. In an embodiment, the antiblock agent is silica (SiO.sub.2). The silica may be organic silica or synthetic silica. In another embodiment, the antiblock agent is talc.

[0096] In an embodiment, the sealant layer contains from 0 wt %, or 0.01 wt %, or 0.05 wt %, or 0.1 wt %, or 0.2 wt % to 0.3 wt %, or 0.4 wt %, or 0.5 wt %, or 1.0 wt %, or 2.0 wt %, or 3.0 wt %, or 4.0 wt %, or 5.0 wt % additive, based on the total weight of the sealant layer.

[0097] In an embodiment, the sealant layer contains, consists essentially of, or consists of:

[0098] (A) from 70 wt %, or 75 wt %, or 80 wt %, or 85 wt %, or 90 wt % to 93 wt %, or 94 wt %, or 95 wt %, or 96 wt %, or 97 wt %, or 98 wt %, or 99 wt %, or 99.9 wt % ethylene-based polymer (such as an ethylene plastomer/elastomer, a LDPE, a LLDPE, or combinations thereof), based on the total weight of the sealant layer;

[0099] (B) from 0.1 wt %, or 0.2 wt %, or 0.3 wt %, or 0.4 wt %, or 0.5 wt %, or 1.0 wt %, or 1.5 wt %, or 1.8 wt % to 2.0 wt %, or 2.3 wt %, or 2.5 wt %, or 2.8 wt %, or 3.0 wt %, or 3.5 wt %, or 4.0 wt %, or 4.5 wt %, or 5.0 wt % slip agent blend, based on the total weight of the sealant layer; and

[0100] (C) optionally, from 0 wt %, or 0.01 wt %, or 0.05 wt %, or 0.1 wt %, or 0.2 wt % to 0.3 wt %, or 0.4 wt %, or 0.5 wt %, or 1.0 wt %, or 2.0 wt %, or 3.0 wt %, or 4.0 wt %, or 5.0 wt % additive, based on the total weight of the sealant layer; and the slip agent blend contains:

[0101] (i) from 1 wt %, 5 wt %, or 10 wt %, or 15 wt %, or 20 wt % to 25 wt %, or 30 wt %, or 35 wt %, or 40 wt %, or 45 wt %, or 49 wt %, or less than 50 wt % of a first PDMS (such as a dimethylhydroxysilyl terminated PDMS) having a Mn from 30,000 g/mol, or 40,000 g/mol, or 45,000 g/mol, or 48,000 g/mol to 49,000 g/mol, or 50,000 g/mol, or 55,000 g/mol, or 60,000 g/mol, or 65,000 g/mol, or 70,000 g/mol, or 75,000 g/mol, or 80,000 g/mol, or 90,000 g/mol, or 100,000 g/mol, or 150,000 g/mol, or 200,000 g/mol, or 250,000 g/mol, based on the total weight of the slip agent blend; and

[0102] (ii) from greater than 50 wt %, or 51 wt %, or 55 wt %, or 60 wt %, or 65 wt %, or 70 wt %, or 75 wt % to 80 wt %, or 85 wt %, or 90 wt %, or 95 wt %, or 99 wt % of a second PDMS (such as a dimethylvinylsilyl terminated PDMS) having a Mn from 300,000 g/mol, or 310,000 g/mol, or 320,000 g/mol, or 330,000 g/mol, or 340,000 g/mol, or 350,000 g/mol to 360,000 g/mol, or 370,000 g/mol, or 380,000 g/mol, or 390,000 g/mol, or 400,000 g/mol, or 450,000 g/mol, or 500,000 g/mol, or 550,000 g/mol, or 600,000 g/mol, or 750,000 g/mol, or 1,000,000 g/mol, based on the total weight of the slip agent blend.

[0103] In an embodiment, the sealant layer contains, consists essentially of, or consists of:

[0104] (1) from 70 wt %, or 75 wt %, or 80 wt %, or 85 wt %, or 90 wt % to 93 wt %, or 94 wt %, or 95 wt %, or 96 wt %, or 97 wt %, or 98 wt %, or 99 wt %, or 99.9 wt % ethylene-based polymer (such as an ethylene plastomer/elastomer, a LDPE, a LLDPE, or combinations thereof), based on the total weight of the sealant layer;

[0105] (2) from 0.01 wt %, or 0.05 wt %, or 0.10 wt %, or 0.20 wt %, or 0.30 wt %, or 0.40 wt %, or 0.50 wt % to 0.60 wt %, or 0.70 wt %, or 0.80 wt %, or 0.90 wt %, or 1.00 wt %, or 1.50 wt %, or 2.00 wt %, or 2.30 wt %, or 2.40 wt %, or less than 2.50 wt % of a first PDMS (such as a dimethylhydroxysilyl terminated PDMS) having a Mn from 30,000 g/mol, or 40,000 g/mol, or 45,000 g/mol, or 48,000 g/mol to 49,000 g/mol, or 50,000 g/mol, or 55,000 g/mol, or 60,000 g/mol, or 65,000 g/mol, or 70,000 g/mol, or 75,000 g/mol, or 80,000 g/mol, or 90,000 g/mol, or 100,000 g/mol, or 150,000 g/mol, or 200,000 g/mol, or 250,000 g/mol, based on the total weight of the sealant layer;

[0106] (3) from greater than 0.05 wt %, or 0.08 wt %, or 0.10 wt %, or 0.20 wt %, or 0.30 wt %, or 0.40 wt %, or 0.50 wt %, or 0.80 wt %, or 1.00 wt %, or 1.10 wt %, or 1.20 wt %, or 1.30 wt %, or 1.40 wt %, or 1.50 wt % to 1.60 wt %, or 1.70 wt %, or 1.80 wt %, or 1.90 wt %, or 2.00 wt %, or 2.50 wt %, or 3.00 wt %, or 3.50 wt %, or 4.00 wt %, or 4.50 wt %, or 4.95 wt % of a second PDMS (such as a dimethylvinylsilyl terminated PDMS) having a Mn from 300,000 g/mol, or 310,000 g/mol, or 320,000 g/mol, or 330,000 g/mol, or 340,000 g/mol, or 350,000 g/mol to 360,000 g/mol, or 370,000 g/mol, or 380,000 g/mol, or 390,000 g/mol, or 400,000 g/mol, or 450,000 g/mol, or 500,000 g/mol, or 550,000 g/mol, or 600,000 g/mol, or 750,000 g/mol, or 1,000,000 g/mol, based on the total weight of the sealant layer; and

[0107] (4) optionally, from 0 wt %, or 0.01 wt %, or 0.05 wt %, or 0.1 wt %, or 0.2 wt % to 0.3 wt %, or 0.4 wt %, or 0.5 wt %, or 1.0 wt %, or 2.0 wt %, or 3.0 wt %, or 4.0 wt %, or 5.0 wt % additive, based on the total weight of the sealant layer; and the weight ratio of the first PDMS to the second PDMS is from 1.5:1, or 2.0:1, or 3.0:1 to 4.0:1, or 5.0:1, or 10:1, or 15:1, or 20:1, or 25:1, or 30:1, or 40:1, or 50:1, or 60:1, or 70:1, or 80:1, or 90:1, or 99:1.

[0108] In an embodiment, the sealant layer excludes a migratory slip agent, such as an unsaturated fatty acid amide (e.g., erucamide and oleamide).

[0109] In an embodiment, the sealant layer has a COF at 100 mm/min from 0.01, or 0.05, or 0.10, or 0.20, or 0.25 to 0.27, or 0.28, or 0.29, or 0.30, or 0.35, or 0.39, or 0.40.

[0110] In an embodiment, the sealant layer has a COF at 12 m/min from 0.01, or 0.05, or 0.10, or 0.20, or 0.25 to 0.27, or 0.28, or 0.29, or 0.30, or 0.35, or 0.39, or 0.40.

[0111] In an embodiment, the sealant layer has a thickness from 5 μm, or 7 μm, or 10 μm to 15 μm, or 20 μm, or 25 μm, or 30 μm, or 35 μm, or 40 μm, or 45 μm, or 50 μm.

[0112] In an embodiment, the sealant layer is from 10 vol %, or 15 vol %, or 20 vol % to 25 vol %, or 30 vol %, or 40 vol %, or 50 vol %, or 60 vol %, or 70 vol %, or 80 vol %, or 90 vol %, or 95 vol % of the first film, based on the total volume of the first film.

[0113] In an embodiment, the sealant layer is a skin layer. A “skin layer” is an outermost layer of a film structure. In other words, at least one surface of a skin layer is an outermost surface of the film.

[0114] The sealant layer may comprise two or more embodiments discussed herein.

2. Optional Core Layer

[0115] In an embodiment, the first film includes a core layer. The core layer contains a second ethylene-based polymer. A “core layer” is a layer of a film structure that is an inner layer. In other words, neither surface of a core layer is an outer surface of the first film.

[0116] The core layer has two opposing surfaces. In an embodiment, the core layer is a continuous layer with two opposing surfaces.

[0117] The core layer is in contact with the sealant layer. The core layer may be in direct contact or in indirect contact with the sealant layer. In an embodiment, the core layer directly contacts the sealant layer. The term “directly contacts,” as used herein, is a layer configuration whereby the sealant layer is located immediately adjacent to the core layer and no intervening layers, or no intervening structures, are present between the sealant layer and the core layer. In another embodiment, the core layer indirectly contacts the sealant layer. The term “indirectly contacts,” as used herein, is a layer configuration whereby an intervening layer, or an intervening structure, is present between the sealant layer and the core layer.

[0118] The second ethylene-based polymer may be any ethylene-based polymer disclosed herein. The second ethylene-based polymer may be the same or different than the ethylene-based polymer of the sealant layer. In an embodiment, the second ethylene-based polymer is the same as the ethylene-based polymer of the sealant layer. In another embodiment, the second ethylene-based polymer is different than the ethylene-based polymer of the sealant layer.

[0119] In an embodiment, the second ethylene-based polymer is a LLDPE, a LDPE, or a combination thereof. In a further embodiment, the LLDPE is an ethylene/1-octene copolymer.

[0120] In an embodiment, the second layer contains from 1 wt %, or 5 wt %, or 10 wt %, or 20 wt %, or 30 wt %, or 40 wt %, or 50 wt % to 60 wt %, or 70 wt %, or 80 wt %, or 90 wt %, or 95 wt %, or 99 wt % LLDPE; and a reciprocal amount of LDPE, or from 1 wt %, or 5 wt %, or 10 wt %, or 20 wt %, or 30 wt %, or 40 wt %, or 50 wt % to 60 wt %, or 70 wt %, or 80 wt %, or 90 wt %, or 95 wt %, or 99 wt % LDPE, based on the total weight of the core layer.

[0121] In an embodiment, the core layer contains an optional additive. The additive may be any additive disclosed herein. In an embodiment, the core layer contains from 0 wt %, or 0.01 wt %, or 0.05 wt %, or 0.1 wt %, or 0.2 wt % to 0.3 wt %, or 0.4 wt %, or 0.5 wt %, or 1.0 wt %, or 2.0 wt %, or 3.0 wt %, or 4.0 wt %, or 5.0 wt % additive (e.g., a slip agent, an antiblock agent, or combinations thereof), based on the total weight of the core layer.

[0122] In an embodiment, the core layer has a thickness from 5 μm, or 8 μm, or 10 μm, or 15 μm, or 20 μm, or 25 μm, or 30 μm to 35 μm, or 40 μm, or 45 μm, or 50 μm, or 55 μm, or 60 μm, or 65 μm, or 70 μm, or 75 μm, or 80 μm.

[0123] In an embodiment, the core layer is from 10 vol %, or 15 vol %, or 20 vol %, or 25 vol %, or 30 vol %, or 40 vol %, or 50 vol %, or 60 vol % to 65 vol %, or 70 vol %, or 80 vol %, or 90 vol % of the first film, based on the total volume of the first film.

[0124] The core layer may comprise two or more embodiments discussed herein.

3. Optional Release Layer

[0125] In an embodiment, the first film includes a release layer. The release layer contains a third ethylene-based polymer.

[0126] The release layer has two opposing surfaces. In an embodiment, the release layer is a continuous layer with two opposing surfaces. The release layer is in contact with the core layer. The release layer may be in direct contact or in indirect contact with the core layer. In an embodiment, the release layer directly contacts the core layer. In another embodiment, the release layer indirectly contacts the core layer.

[0127] The third ethylene-based polymer may be any ethylene-based polymer disclosed herein. The third ethylene-based polymer may be the same or different than the ethylene-based polymer of the sealant layer, and the third ethylene-based polymer may be the same or different than the second ethylene-based polymer of the core layer. In an embodiment, the third ethylene-based polymer is the same as the second ethylene-based polymer of the core layer. In another embodiment, the third ethylene-based polymer is different than the second ethylene-based polymer of the core layer.

[0128] In an embodiment, the third ethylene-based polymer is a LLDPE, a LDPE, or a combination thereof. In a further embodiment, the LLDPE is an ethylene/1-octene copolymer. In an embodiment, the release layer contains from 5 wt %, or 10 wt %, or 20 wt %, or 30 wt %, or 40 wt %, or 50 wt % to 60 wt %, or 70 wt %, or 80 wt %, or 90 wt %, or 95 wt %, or 99 wt % LLDPE; and a reciprocal amount of LDPE, or from 1 wt %, or 5 wt %, or 10 wt %, or 20 wt %, or 30 wt %, or 40 wt %, or 50 wt % to 60 wt %, or 70 wt %, or 80 wt %, or 90 wt %, or 95 wt % LDPE, based on the total weight of the release layer.

[0129] In an embodiment, the release layer contains an optional additive. The additive may be any additive disclosed herein. In an embodiment, the release layer contains from 0 wt %, or 0.01 wt %, or 0.05 wt %, or 0.1 wt %, or 0.2 wt % to 0.3 wt %, or 0.4 wt %, or 0.5 wt %, or 1.0 wt %, or 2.0 wt %, or 3.0 wt %, or 4.0 wt %, or 5.0 wt % additive, based on the total weight of the release layer.

[0130] In an embodiment, the release layer has a thickness from 5 μm, or 7 μm, or 10 μm to 15 μm, or 20 μm, or 25 μm, or 30 μm, or 35 μm, or 40 μm, or 45 μm, or 50 μm.

[0131] In an embodiment, the release layer is from 10 vol %, or 15 vol %, or 20 vol % to 25 vol %, or 30 vol %, or 40 vol %, or 50 vol %, or 60 vol %, or 70 vol %, or 80 vol %, or 90 vol %, or 95 vol % of the film, based on the total volume of the first film.

[0132] In an embodiment, the release layer is a skin layer.

[0133] In an embodiment, the release layer is corona-treated.

[0134] The release layer may comprise two or more embodiments discussed herein.

[0135] In an embodiment, the first film is a multilayer film having the following Structure (II):

sealant layer/core layer/release layer  Structure (II).

[0136] In an embodiment, the first film is a multilayer film consisting essentially of, or consisting of, the sealant layer, the core layer, and the release layer.

[0137] In an embodiment, the first film has a thickness of from 15 μm, or 20 μm, or 25 μm, or 30 μm, or 35 μm, or 40 μm, or 45 μm, or 50 μm to 55 μm, or 60 μm, or 65 μm, or 70 μm, or 75 μm, or 80 μm, or 85 μm, or 90 μm, or 95 μm, or 100 μm.

[0138] In an embodiment, the first film excludes a migratory slip agent, such as an unsaturated fatty acid amide (e.g., erucamide and oleamide).

[0139] In an embodiment, the first film is a coextruded multilayer structure. Some methods, for example, used to construct films are by cast coextrusion or blown coextrusion methods. Combinations of these methods are also possible.

[0140] In an embodiment, the first film is not an oriented film. In a further embodiment, the first film is not biaxially oriented. In other words, the first film is not stretched after extrusion in some embodiments.

Second Film

[0141] The laminate includes a second film. The first film is laminated to the second film.

[0142] The second film may be a monolayer film or a multilayer film. The second multilayer film contains two layers, or more than two layers. For example, the second multilayer film can have two, three, four, five, six, seven, eight, nine, ten, eleven, or more layers. In an embodiment, the second multilayer film contains only two layers, or only three layers.

[0143] In an embodiment, the second film is a monolayer film with only one layer.

[0144] The second film is in contact with the first film. The second film may be in direct contact or indirect contact with the first film. In an embodiment, the second film directly contacts the first film. In another embodiment, the second film indirectly contacts the first film.

[0145] The second film has two opposing surfaces.

[0146] In an embodiment, the second film includes a layer containing a component selected from a fourth ethylene-based polymer, propylene-based polymer, polyamide (such as nylon), polyester, ethylene vinyl alcohol (EVOH) copolymer, polyethylene terephthalate (PET), ethylene vinyl acrylate copolymer, ethylene methyl acrylate copolymer, ethylene ethyl acrylate copolymer, ethylene butyl acrylate copolymer, ethylene acrylic acid copolymer, ethylene methacrylic acid copolymer, an ionomer of ethylene acrylic acid, an ionomer of methacylic acid, maleic anhydride grafted ethylene-based polymer, a polystyrene, a metal foil, and combinations thereof. In an embodiment, the second film includes a layer containing a component selected from PET, EVOH copolymer, a polyamide, and combinations thereof. In an embodiment, the second film includes a layer containing PET.

[0147] In an embodiment, the second film has a thickness from 5 μm, or 8 μm, or 10 μm, or 12 μm, or 15 μm to 20 μm, or 25 μm, or 30 μm, or 35 μm, or 40 μm, or 45 μm, or 50 μm, or 55 μm, or 60 μm, or 65 μm, or 70 μm, or 75 μm, or 80 μm, or 85 μm, or 90 μm, or 100 μm, or 150 μm.

[0148] In an embodiment, an outermost surface of the second film is an outermost surface of the laminate.

[0149] The second film may comprise two or more embodiments disclosed herein.

Optional Adhesive Layer

[0150] In an embodiment, the laminate includes an optional adhesive layer. The adhesive layer is in contact with the first film and the second film.

[0151] The adhesive layer has two opposing surfaces. In an embodiment, the adhesive layer is a continuous layer with two opposing surfaces. The adhesive layer is in contact with the first film. The adhesive layer may be in direct contact or in indirect contact with the first film. In an embodiment, the adhesive layer directly contacts the first film. In another embodiment, the adhesive layer indirectly contacts the first film.

[0152] The adhesive layer contains an adhesive. Nonlimiting examples of suitable adhesives include polyurethane adhesives, polyacrylate adhesives, and combinations thereof. Nonlimiting examples of suitable polyurethane adhesives include MOR-FREE™ 706A/C-79 (a solventless polyurethane adhesive); MOR-FREE™ 715A/CR-84 (a solvent-less polyester-based polyurethane adhesive); and MOR-FREE™ 698A/C-79 (solvent-less polyether-based polyurethane adhesive), each available from Rohm and Haas. A nonlimiting example of a suitable polyacrylate adhesive is ROBOND™ L-168/CR3A, a water-based polyacrylate adhesive available from The Dow Chemical Company.

[0153] In an embodiment, the adhesive layer has a coating weight of from 0.5 grams per square meter (g/m.sup.2), or 1.0 g/m.sup.2, or 1.5 g/m.sup.2, or 1.8 g/m.sup.2, or 1.9 g/m.sup.2 to 2.0 g/m.sup.2, or 2.5 g/m.sup.2, or 3.0 g/m.sup.2.

[0154] The adhesive layer may comprise two or more embodiments disclosed herein.

[0155] In an embodiment, the laminate has a COF at 12 m/min of less than 0.55, or from 0.01, or 0.05, or 0.10, or 0.20, or 0.25 to 0.27, or 0.28, or 0.29, or 0.30, or 0.35, or 0.40, or 0.45, or 0.49, or 0.50, or 0.54, or 0.55.

[0156] In an embodiment, the adhesive layer contains a polyether-based polyurethane adhesive and the laminate has a COF at 12 m/min from 0.10, or 0.20, or 0.30, or 0.40, or 0.45 to 0.54, or 0.55.

[0157] In an embodiment, the adhesive layer contains a polyester-based polyurethane adhesive and the laminate has a COF at 12 m/min from 0.10, or 0.20, or 0.30, or 0.40, or 0.45 to 0.49, or 0.50.

[0158] In an embodiment, the laminate includes, consists essentially of, or consists of:

[0159] a first film comprising, consisting essentially of, or consisting of

[0160] (1) a sealant layer containing, consisting essentially of, or consisting of [0161] (A) from 70 wt %, or 75 wt %, or 80 wt %, or 85 wt %, or 90 wt % to 93 wt %, or 94 wt %, or 95 wt %, or 96 wt %, or 97 wt %, or 98 wt %, or 99 wt %, or 99.9 wt % ethylene-based polymer (such as an ethylene plastomer/elastomer, a LDPE, a LLDPE, or combinations thereof), based on the total weight of the sealant layer; [0162] (B) from 0.1 wt %, or 0.2 wt %, or 0.3 wt %, or 0.4 wt %, or 0.5 wt %, or 1.0 wt %, or 1.5 wt %, or 1.8 wt % to 2.0 wt %, or 2.3 wt %, or 2.5 wt %, or 2.8 wt %, or 3.0 wt %, or 3.5 wt %, or 4.0 wt %, or 4.5 wt %, or 5.0 wt % slip agent blend, based on the total weight of the sealant layer; and [0163] (C) optionally, from 0 wt %, or 0.01 wt %, or 0.05 wt %, or 0.1 wt %, or 0.2 wt % to 0.3 wt %, or 0.4 wt %, or 0.5 wt %, or 1.0 wt %, or 2.0 wt %, or 3.0 wt %, or 4.0 wt %, or 5.0 wt % additive, based on the total weight of the sealant layer; and the slip agent blend contains: [0164] (i) from 1 wt %, or 5 wt %, or 10 wt %, or 15 wt %, or 20 wt % to 25 wt %, or 30 wt %, or 35 wt %, or 40 wt %, or 45 wt %, or 49 wt %, or less than 50 wt % of a first PDMS (such as a dimethylhydroxysilyl terminated PDMS) having a Mn from 30,000 g/mol, or 40,000 g/mol, or 45,000 g/mol, or 48,000 g/mol to 49,000 g/mol, or 50,000 g/mol, or 55,000 g/mol, or 60,000 g/mol, or 65,000 g/mol, or 70,000 g/mol, or 75,000 g/mol, or 80,000 g/mol, or 90,000 g/mol, or 100,000 g/mol, or 150,000 g/mol, or 200,000 g/mol, or 250,000 g/mol, based on the total weight of the slip agent blend; and [0165] (ii) from greater than 50 wt %, or 51 wt %, or 55 wt %, or 60 wt %, or 65 wt %, or 70 wt %, or 75 wt % to 80 wt %, or 85 wt %, or 90 wt %, or 95 wt %, or 99 wt % of a second PDMS (such as a dimethylvinylsilyl terminated PDMS) having a Mn from 300,000 g/mol, or 320,000 g/mol, or 330,000 g/mol, or 340,000 g/mol, or 350,000 g/mol to 360,000 g/mol, or 370,000 g/mol, or 380,000 g/mol, or 390,000 g/mol, or 400,000 g/mol, or 450,000 g/mol, or 500,000 g/mol, or 550,000 g/mol, or 600,000 g/mol, or 750,000 g/mol, or 1,000,000 g/mol, based on the total weight of the slip agent blend;

[0166] (2) optionally, a core layer in contact with the sealant layer, the core layer containing a second ethylene-based polymer (such as LLDPE, LDPE, or a combination thereof) and, optionally, an additive;

[0167] (3) optionally, a release layer in contact with the core layer, the release layer containing a third ethylene-based polymer (such as LLDPE, LDPE, or a combination thereof) and, optionally, an additive;

[0168] a second film comprising a layer containing a component selected from PET, EVOH copolymer, a polyamide, or a combination thereof; and

[0169] optionally, an adhesive layer containing an adhesive (such as a polyurethane adhesive) in contact with the first film and the second film; and

the laminate has one, some, or all of the following properties:

[0170] (i) the sealant layer has a thickness from 5 μm, or 7 μm, or 10 μm to 15 μm, or 20 μm, or 25 μm, or 30 μm, or 35 μm, or 40 μm, or 45 μm, or 50 μm; and/or

[0171] (ii) the sealant layer is from 10 vol %, or 15 vol %, or 20 vol % to 25 vol %, or 30 vol %, or 40 vol %, or 50 vol %, or 60 vol %, or 70 vol %, or 80 vol %, or 90 vol %, or 95 vol % of the first film, based on the total volume of the first film; and/or

[0172] (iii) the core layer has a thickness from 5 μm, or 8 μm, or 10 μm, or 15 μm, or 20 μm, or 25 μm, or 30 μm to 35 μm, or 40 μm, or 45 μm, or 50 μm, or 55 μm, or 60 μm, or 70 μm, or 80 μm; and/or

[0173] (iv) the core layer is from 10 vol %, or 15 vol %, or 20 vol %, or 25 vol %, or 30 vol %, or 40 vol %, or 50 vol %, or 60 vol % to 65 vol %, or 70 vol %, or 80 vol %, or 90 vol % of the first film, based on the total volume of the first film; and/or

[0174] (v) the release layer has a thickness from 5 μm, or 8 μm, or 10 μm to 15 μm, or 20 μm, or 25 μm, or 30 μm, or 35 μm, or 40 μm, or 45 μm, or 50 μm; and/or

[0175] (vi) the release layer is from 10 vol %, or 15 vol %, or 20 vol % to 25 vol %, or 30 vol %, or 40 vol %, or 50 vol %, or 60 vol %, or 70 vol %, or 80 vol %, or 90 vol %, or 95 vol % of the first film, based on the total volume of the first film; and/or

[0176] (vii) the first film has a thickness of from 15 μm, or 20 μm, or 30 μm, or 40 μm, or 50 μm to 60 μm, or 65 μm, or 70 μm, or 75 μm, or 80 μm, or 85 μm, or 90 μm, or 95 μm, or 100 μm; and/or

[0177] (viii) the second film has a thickness from 5 μm, or 8 μm, or 10 μm, or 12 μm, or 15 μm to 20 μm, or 25 μm, or 30 μm, or 35 μm, or 40 μm, or 45 μm, or 50 μm; and/or

[0178] (ix) the outermost surface of the sealant layer is an outermost surface of the laminate; and/or

[0179] (x) the laminate has a COF at 12 m/min from 0.01, or 0.05, or 0.10, or 0.20, or 0.25 to 0.27, or 0.28, or 0.29, or 0.30, or 0.35, or 0.40, or 0.45, or 0.49, or 0.50, or 0.54, or 0.55.

[0180] It is understood that the sum of the components in each of the layers disclosed herein, including the foregoing layers, yields 100 weight percent (wt %), based on the total weight of the respective layer. It is also understood that the sum of the volume of each of the layers disclosed herein, including the foregoing layers, yields 100 volume percent (vol %), based on the total volume of the respective film.

[0181] In an embodiment, the laminate has the following Structure (III):

first film/adhesive layer/second film  Structure(III).

[0182] In an embodiment, the first film is a multilayer film with a sealant layer, a core layer, and a release layer; and the second film is a monolayer film containing PET; and the laminate has the following Structure (IV):

sealant layer/core layer/release layer/adhesive layer/second film  Structure(IV).

[0183] In an embodiment, the laminate includes from 1 to 10 repeating layers of the adhesive layer and the second film, wherein each adhesive layer may be the same or different than the other adhesive layer(s) and each second film may be the same or different than the other second film(s). In a further embodiment, the laminate has the following Structure (V):

first film/adhesive layer/second film/adhesive layer/second film  Structure (V).

[0184] The laminate may comprise two or more embodiments disclosed herein.

[0185] The present disclosure also provides an article containing the laminate, as a package. Nonlimiting examples of suitable packages include food packages and specialty packages (e.g., stand-up pouches, pillow pouches, and trays wrapped in film).

[0186] In an embodiment, the article is a pillow pouch. In an embodiment, the pillow pouch includes a single sheet of the laminate that is folded upon itself. The three unconnected edges are then heat sealed after the contents are placed between the folded-over layers. The heat seals include a top seal, a bottom seal, and a center fold seal. A storage space is defined by the area between the folded sheet and within the heat seals. The storage space is sealed off from the surrounding environment and contains the contents, of the pouch, for example, foodstuffs. In an embodiment, the pillow pouch is a hermetic pouch. While the package is described as having a single sheet, it should be readily apparent to those skilled in the art that more than one sheet could be used. In an embodiment, the pillow pouch is formed on a vertical form fill seal (VFFS) line. In an embodiment, the pillow pouch is formed on a VFFS line that forms greater than 90 hermetic pouches per minute (p-p-m), or from 100 p-p-m, or 120 p-p-m, or 130 p-p-m, or 140 p-p-m, or 150 p-p-m, or 160 p-p-m to 170 p-p-m, or 180 p-p-m, or 190 p-p-m, or 200 p-p-m.

[0187] The article may comprise two or more embodiments disclosed herein.

[0188] By way of example, and not limitation, some embodiments of the present disclosure will now be described in detail in the following Examples.

Examples

[0189] Materials used in the examples are provided in Table 1 below.

TABLE-US-00002 TABLE 1 Material/Description Properties Source AFFINITY ™ PL 1880G MI (I2)(190° C./2.16 kg) = 1.0 g/10 min, The Dow (ethylene/1-octene copolymer) Density = 0.902 g/cc, Melting point = 99° C. Chemical (plastomer/elastomer) Company AFFINITY ™ PL 1881G MI (I2)(190° C./2.16 kg) = 1.0 g/10 min, The Dow (750 ppm fatty acid amide slip agent and Density = 0.904 g/cc, Melting point = 100° C. Chemical 2500 ppm silica antiblock agent dispersed Company in an ethylene/α-olefin copolymer (plastomer/elastomer)) DOWLEX ™ NG 5056G MI (I2)(190° C./2.16 kg) = 1.1 g/10 min, The Dow (ethylene/1-octene copolymer) Density = 0.919 g/cc Chemical (LLDPE) Company DOW ™ LDPE 320E MI (I2)(190° C./2.16 kg) = 1.0 g/10 min, The Dow (LDPE) Density = 0.923 g/cc Chemical Company DOW ™ LDPE 312E MI (I2)(190° C./2.16 kg) = 0.75 g/10 min, The Dow (900 ppm antiblock agent and Density = 0.9235 g/cc Chemical 385 ppm slip agent dispersed in a Company LDPE (ethylene homopolymer)) MB25-502 Masterbatch LDPE A MI (I2)(190° C./2.16 kg) = 8.0 g/10 min, Dow Corning PDMS A Mn = 48,400 g/mol, (25 wt % dimethylhydroxysilyl terminated PDMS A Mw = 120,100 g/mol, PDMS (PDMS A) dispersed in LDPE A) PDMS A Mw/Mn = 2.48 MB25-635 Masterbatch LDPE B MI (I2)(190° C./2.16 kg) = 2.5 g/10 min, Dow Corning PDMS B Mn = 356,700 g/mol.sup.1, (25 wt % dimethylvinylsilyl terminated PDMS PDMS B Mw = 647,266 g/mol.sup.1, (PDMS B) dispersed in LDPE B)) PDMS B Mw/Mn = 1.82.sup.1 MB25-035 Masterbatch LDPE C MI (I2)(190° C./2.16 kg) = 2.3 g/10 min, Dow Corning PDMS C Mn = 356,700 g/mol.sup.1, (25 wt % dimethylvinylsilyl terminated PDMS PDMS C Mw = 647,266 g/mol.sup.1, (PDMS C) dispersed in LDPE C) PDMS C Mw/Mn = 1.82.sup.1 MB50-613 Masterbatch LLDPE E MI (I2)(190° C./2.16 kg) = 6.0 g/10 min, Dow Corning PDMS D Mn = 356,700 g/mol.sup.1, (50 wt % dimethylvinylsilyl terminated PDMS PDMS D Mw = 647,266 g/mol.sup.1, (PDMS D) dispersed in LLDPE E) PDMS D Mw/Mn = 1.82.sup.1 ME 50024 Masterbatch LDPE D MI (I2)(190° C./2.16 kg) = 20 g/10 min Multibase S.A. (62.5 wt % talc dispersed in LDPE D) MOR-FREE ™ 715A/CR-84 solvent-less polyester-based polyurethane Rohm and Haas (weight ratio of 100:50) adhesive MOR-FREE ™ 698A/MOR-FREE ™ C-79 solvent-less polyether-based polyurethane Rohm and Haas (weight ratio of 100:45) adhesive .sup.1Based on the average of three samples.

[0190] Multilayer film samples are fabricated on an Alpine coextrusion line with the following conditions: average film thickness=50 μm; Blow Up Ratio (B.U.R.)=2.5; Die Diameter=200 mm; Die Gap=2.5 mm; Temperature profile-Extruder A=150 170 225 225 220 220° C.; Temperature profile-Extruder B=200 235 240 240 240 235° C.; Temperature profile-Extruder C=200-235-245-240-240-240° C.; Temperature, Die=220° C.; Corona Treatment=40 dyne; Output Rate=120 kg/h; and Layer Distribution Ratio=15:70:15 (A:B:C). The film bubble is open and cut to a 40 cm wide film roll.

[0191] The layer configurations are provided below in Table 2. Each multilayer film structure is formed with (A) a sealant layer having a volume that is 15 volume % of the multilayerfilm, (B) a core layer having a volume that is 70 volume % of the multilayer film, and (C) a release layer having a volume that is 15 volume % of the multilayer film. The multilayer film has the following structure: sealant layer (A)/core layer (B)/release layer (C). The sealant layer is in direct contact with the core layer, and the core layer is in direct contact with the release layer. In Table 2, “CS” refers to Comparative Sample.

[0192] Each PDMS is included in the sealant layer as part of a masterbatch (MB25-502, MB25-635, MB25-035, or MB50-613) in which the PDMS is dispersed in a LDPE matrix or a LLDPE matrix. Table 2 provides the individual amounts of each PDMS and LDPE/LLDPE matrix included in the sealant layer. For example, the sealant layer of Film Example 1 includes 0.5 wt % of the PDMS A from MB25-502 (which has a Mn of 48,400 g/mol, as provided in Table 1) and 1.5 wt % of the LDPE A from MB25-502, based on the total weight of the sealant layer. Thus, the sealant layer of Film Example 1 contains a total amount of 2.0 wt % MB25-502, based on the total weight of the sealant layer. The sealant layer of Film Example 1 also includes 1.5 wt % of the PDMS B from MB25-635 (which has a Mn of 356,700 g/mol, as provided in Table 1) and 4.5 wt % of the LDPE B from MB25-635, based on the total weight of the sealant layer. Thus, the sealant layer of Film Example 1 contains a total amount of 6.0 wt % MB25-635, based on the total weight of the sealant layer

[0193] The multilayer film samples are tested for COF. The results are provided below in Table 2.

TABLE-US-00003 TABLE 2 Multilayer Film Samples Film Film Film Film Film Film Film Film Film Ex. 1 CS 2 Ex. 3 Ex. 4 Ex. 5 CS 6 Ex. 7 Ex. 8 Ex. 9 Sealant Layer (A) (15 vol %) AFFINITY ™ PL 1880G (wt %).sup.A 91.5 — 91.5 91.58 93.5 91.5 93.5 95.75 95.9 AFFINITY ™ PL 1881G (wt %).sup.A — 100 — — — — — — — (includes 0.075 wt %.sup.D fatty acid amide and 0.25 wt %.sup.D silica) LDPE A (wt %).sup.A (from MB25-502) 1.5 — 1.5 1.5 1.125 6.0 1.125 1.125 0.9 LDPE B (wt %).sup.A (from MB25-635) 4.5 — — — — — 3.375 — — LDPE C (wt %).sup.A (from MB25-035) — — 4.5 4.5 3.375 — — — — LDPE D (wt %).sup.A (from ME 50024) 0.1875 — 0.1875 0.1575 0.1875 0.1875 0.1875 0.1875 0.1875 LLDPE E (wt %).sup.A (from MB50-613) — — — — — — — 1.125 1.2 PDMS A (wt %).sup.A (from MB25-502) 0.5 — 0.5 0.5 0.375 2.0 0.375 0.375 0.3 PDMS B (wt %).sup.A (from MB25-635) 1.5 — — — — — 1.125 — — PDMS C (wt %).sup.A (from MB25-035) — — 1.5 1.5 1.125 — — — — PDMS D (wt %).sup.A (from MB50-613) — — — — — — — 1.125 1.2 Talc (wt %).sup.A (from ME 50024) 0.3125 — 0.3125 0.2625 0.3125 0.3125 0.3125 0.3125 0.3125 Total (wt %).sup.A 100 100 100 100 100 100 100 100 100 Core Layer (B) (70 vol %) DOWLEX ™ NG 5056G (wt %).sup.B 70 70 70 70 70 70 70 70 70 DOW ™ LDPE 312E (wt %).sup.B 30 30 30 30 30 30 30 30 30 (includes 0.0385 wt %.sup.E slip agent and 0.09 wt %.sup.E antiblock agent) Total (wt %).sup.B 100 100 100 100 100 100 100 100 100 Release Layer (15 vol %) DOWLEX ™ NG 5056G (wt %).sup.C 70 70 70 70 70 70 70 70 70 DOW ™ LDPE 320E (wt %).sup.C 30 30 30 30 30 30 30 30 30 Total (wt %).sup.C 100 100 100 100 100 100 100 100 100 Film Thickness (μm) 50 50 50 50 50 50 50 50 50 Sealant Layer Slip Agent Blend total wt % slip agent blend.sup.+ 2.0 0 2.0 2.0 1.5 2.0 1.5 1.5 1.5 wt % “low Mn” PDMS.sup.~ 25 0 25 25 25 100 25 25 20 wt % “high Mn” PDMS.sup.≈ 75 0 75 75 75 0 75 75 80 Sealant Layer COF at 100 mm/min.sup.⋄ 0.39 0.32 0.17 0.30 0.21 0.36 0.34 0.29 0.25 Sealant Layer COF at 12 m/min.sup.□ 0.21 0.52 NM NM NM NM 0.21 0.23 0.24 .sup.Awt % based on the total weight of the Sealant Layer. .sup.Bwt % based on the total weight of the Core Layer. .sup.Cwt % based on the total weight of the Release Layer. .sup.Dwt % based on the total weight of AFFINITY ™ PL 1881G. .sup.Ewt % based on the total weight of DOW ™ LDPE 312E. .sup.⋄Sealant Layer COF at 100 mm/min is measured according to ISO 8295. .sup.+Total wt % slip agent refers to the total amount of slip agent present in Sealant Layer, based on the total weight of the Sealant Layer. .sup.~wt % of PDMS with a Mn from 30,000 g/mol to less than 300,000 g/mol, based on the total weight of slip agent in the Sealant Layer. .sup.≈wt % of PDMS with a Mn from 300,000 g/mol to 2,000,000 g/mol, based on the total weight of slip agent in the Sealant Layer. .sup.□Sealant Layer COF at 12 m/min is measured on an “at-line” COF testing apparatus.

[0194] The multilayer film samples of Table 2 are laminated to a PET film (12 μm thick) with an adhesive via a Labo Combi™ L400 laminator (a pilot coater) from Nordmeccanica Group. During lamination, the multilayer film samples of Table 2 are placed on a first tape reel, which is placed on a first unwinder having a tension of 1.7 kg and the PET film is placed an a second tape reel, which is placed on a second unwinder having a tension of 2 kg. The laminator is equipped with three chromium-plated steel rollers heated at 45° C. The PET film is coated with the adhesive as it is unwound from the first unwinder by pouring the adhesive between batch rollers. The adhesive is applied to the PET film with a coating weight of 1.9 g/m.sup.2. The adhesive-coated PET film is then pressed against the multilayer film sample as it is unwound from the second unwinder via a laminating calender and a compressing roller. The speed of the laminator is 100 m/min, the nip temperature is 50° C., and the pressure is 3 bar (300 kiloPascal (kPa)). The laminated structure is then wound on a winder shaft having a tension of 4 kg. The laminated structures are cured for 6 days at room temperature (23° C.). The resulting laminates have the following Structure (A): multilayer film sample/adhesive layer/PET film. In other words, the resulting laminates have the following Structure (A): sealant layer/core layer/release layer/adhesive layer/PET film. The laminated structure configurations are provided below in Table 3.

[0195] The laminate structures are tested for COF. The results are provided below in Table 3.

TABLE-US-00004 TABLE 3 Laminates of Structure (A) (multilayer film sample/adhesive layer/PET film) CS 10 CS 15 Ex. 12 Ex. 13 Ex. 14 CS 17 Ex. 18 Ex. 19 Multilayer Film Film CS 2 Film CS 2 Film Ex. 7 Film Ex. 8 Film Ex. 9 Film CS 2 Film Ex. 1 Film Ex. 7 sample.sup.A Adhesive Layer.sup.B 698A/C-79 698A/C-79 698A/C-79 698A/C-79 698A/C-79 715A/CR-84 715A/CR-84 715A/CR-84 PET Film PET Film PET Film PET Film PET Film PET Film PET Film PET Film PET Film Laminate COF 0.56 0.56  0.50 0.54 0.49 0.52 0.48 0.49 at 12 m/min.sup.□ Hermetic 0  90.sup.C 170 NM NM 0 170 170 Pouches/min. (p-p-m) Percentage of N/A 100.sup.C 100 NM NM N/A 100 100 Hermicity (%) .sup.AMultilayer Film Samples of Table 2 .sup.B715A/CR-84 = MOR-FREE ™ 715A/CR-84 698A/C-79 = MOR-FREE ™ 698A/MOR-FREE ™ C-79 .sup.CCS 15 pouches are prepared on a VFFS line equipped with Nitoflon ™ adhesive tape around the center block of the feeding unit. .sup.□Laminate COF at 12 m/min is measured on an “at-line” COF testing apparatus. NM = not measured

[0196] Applicant surprisingly found that laminates (Ex. 12-Ex. 19) with a PET film, an adhesive layer, and a sealant layer containing (A) an ethylene-based polymer (AFFINITY™ PL 1880G and LDPE or LLDPE) and (B) a slip agent blend, the slip agent blend containing (i) a first PDMS having a Mn from 30,000 g/mol to less than 300,000 g/mol (PDMS A); and (ii) a second PDMS having a Mn from 300,000 g/mol to 2,000,000 g/mol (PDMS B, PDMS C, PDMS D) advantageously exhibit a lower laminate COF at 12 m/min (<0.56 for laminates with an adhesive layer containing MOR-FREE™ 698A/MOR-FREE™ C-79)(<0.52 for laminates with an adhesive layer containing MOR-FREE™ 715A/CR-84) than comparative laminates (CS 10, CS 15, CS 17) including the same PET film and adhesive layer, but with a sealant layer containing (A) an ethylene-based polymer (AFFINITY™ PL 1880G and LDPE) and (B) a single slip agent (Film CS 2)—rather than a slip agent blend.

[0197] The laminated structures are then formed into pillow pouches on a Bosch™ vertical form fill seal (VFFS) line (Model SVE 2520 WR). The VFFS line is a continuous motion vertical bagger. For CS 15, the VFFS line is equipped with a Nitoflon™ adhesive tape from Nito Denko around the center block of the feeding unit to reduce the friction between the sealant layer of the laminate and the metal center feeding block of the VFFS line. The pillow pouch is formed from a single piece of laminate folded upon itself and heat sealed to form a top seal, a bottom seal, and a centerfold seal. The pillow pouch has a length of 230 mm and a width of 150 mm. The seal bar temperatures are set at 180° C., with a seal time of 50 milliseconds and a pressure of 2.5 kNewton. The speed of the VFFS line is measured as the number of hermetic pouches formed per minute (p-p-m). No filling goods are used during testing. The results are provided above in Table 3.

[0198] The hermicity of the pillow pouches is tested by placing 10 pillow pouches under water in a closed tank, in which a vacuum is applied at 0.6 bar (60 kPa). After 30 seconds, the pillow pouches are visually inspected. A pillow pouch is considered hermetic if no bubbles come out of the pillow pouch. A pillow pouch is considered non-hermetic if bubbles come out of the pillow pouch. The percentage of hermicity is the percentage of pillow pouches that are found hermetic. Results are recorded in Table 3.

[0199] As shown in Table 3, pillow pouches made from comparative laminates including a sealant layer containing (A) an ethylene-based polymer (AFFINITY™ PL 1880G and LDPE) and (B) a single slip agent (Film CS 2)—rather than a slip agent blend—(i) cannot be formed (CS 10 and CS 17) or (ii) are formed at a slow speed (i.e., <100 p-p-m) (CS 15).

[0200] Applicant surprisingly found that pillow pouches formed from laminates including a sealant layer containing (A) an ethylene-based polymer (AFFINITY™ PL 1880G and LDPE or LLDPE) and (B) a slip agent blend, the slip agent blend containing (i) a first PDMS having a Mn from 30,000 g/mol to less than 300,000 g/mol (PDMS A); and (ii) a second PDMS having a Mn from 300,000 g/mol to 2,000,000 g/mol (PDMS B, PDMS C, or PDMS D) are advantageously hermetic pillow pouches that may be formed at the maximum speed of the VFFS line (170 p-p-m).

[0201] It is specifically intended that the present disclosure not be limited to the embodiments and illustrations contained herein, but include modified forms of those embodiments including portions of the embodiments and combinations of elements of different embodiments as come within the scope of the following claims.