LAMINATE

Abstract

A laminate containing a propylene polymer as a main component, relating to a sealant film including a heat-seal layer and an adjacent layer, wherein the sealant film satisfies the following requirement (1) the sealant film is a stretched film or a non-stretched film; the heat-seal layer contains an olefin polymer (B) satisfying the following requirement (2): a melting point is less than 120 C. or is not observed; and a propylene polymer (A) satisfying the following requirement (3): a melting point is 121 C. or more and 170 C. or less; and the adjacent layer contains 1 to 70% by mass of the propylene polymer (A) satisfying the following requirement (3) and 30 to 99% by mass of the olefin polymer (B) satisfying the following requirement (2), and contains 0 to 70% by mass of a propylene polymer (B2) in the olefin polymer (B), provided that (A)+(B)=100% by mass.

Claims

1. A sealant film comprising: a heat-seal layer; and an adjacent layer adjacent to the heat-seal layer, wherein the sealant film satisfies the following requirement (1), the heat-seal layer comprises an olefin polymer (B) satisfying the following requirement (2) and a propylene polymer (A) satisfying the following requirement (3), and the adjacent layer comprises 1 to 70% by mass of the propylene polymer (A) satisfying the following requirement (3) and 30 to 99% by mass of the olefin polymer (B) satisfying the following requirement (2), and comprises 0 to 70% by mass of a propylene polymer (B2) in the olefin polymer (B), provided that (A)+(B)=100% by mass, requirement (1): the sealant film is a stretched film or a non-stretched film, requirement (2): a melting point is less than 120 C. or is not observed, and requirement (3): a melting point is 121 C. or more and 170 C. or less.

2. The sealant film according to claim 1, wherein the olefin polymer (B) comprises at least one olefin polymer selected from the group consisting of an ethylene polymer (B1), the propylene polymer (B2), and a 1-butene polymer (B3).

3. The sealant film according to claim 2, wherein the ethylene polymer (B1) is at least one selected from high-pressure low-density polyethylene, linear low-density polyethylene, and an ethylene.Math.-olefin copolymer.

4. The sealant film according to claim 1, wherein the heat-seal layer comprises 0.1 to 80% by mass of the olefin polymer (B) and 20 to 99.9% by mass of the propylene polymer (A), provided that a total amount of (A)+(B) is 100% by mass.

5. The sealant film according to claim 1, wherein a heat-seal strength at 100 C. when the heat-seal layers are adhered to each other is 6 N/15 mm or more.

6. A laminate comprising a substrate film adjacent to the adjacent layer of the sealant film according to claim 1.

7. The laminate according to claim 6, wherein at least one film selected from the sealant film and the substrate film comprises at least one layer selected from a printing layer, a barrier layer, and an embossing layer.

8. A package formed by the laminate according to claim 6.

9. A molded product which is a recycled product of a package film or a package formed by the laminate according to claim 6.

10. A method for producing the laminate according to claim 6, wherein at least one film selected from the sealant film and the substrate film comprises a barrier layer, and wherein the method comprising: forming the barrier layer as a layer in the sealant film or the substrate film by metal vapor deposition, a coating method or a co-extrusion method; and laminating the sealant film and the substrate film.

11. A laminate comprising a sealant film comprising: a heat-seal layer; and an adjacent layer formed on one surface of the heat-seal layer, wherein when the heat-seal layers are heat-fused to each other upon heat-sealing under conditions of a temperature of 100 C., a pressure of 0.1 MPa, and a pressure time of 0.5 seconds, a heat-seal strength at 100 C. is 6 N/15 mm or more, a peeling form is cohesive peeling, and the laminate comprises 50% by mass or more of a propylene polymer.

12. The laminate according to claim 11, wherein the adjacent layer comprises 1 to 70% by mass of a propylene polymer (A) satisfying the requirement (3) and 30 to 99% by mass of an olefin polymer (B) satisfying the requirement (2), requirement (2): a melting point is less than 120 C. or is not observed, and requirement (3): a melting point is 121 C. or more and 170 C. or less.

Description

EXAMPLES

[0118] Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to these Examples.

[0119] The physical properties shown in Examples were measured by the following methods.

[0120] [Heat-Seal Strength]

[0121] Surfaces of the heat-seal layers of the sealant films of the two laminates were placed on each other, or two single-layer films were placed on each other, and fused at 90 C., 100 C., 110 C. or 120 C. under a pressure of 0.1 MPa for 0.5 seconds with a seal bar width of 5 mm, and then allowed to cool. Then, test pieces of 15 mm width each were cut from the test bodies obtained by heat-sealing, and the peeling strength of each test piece was measured when the heat-sealed portion was peeled off at a crosshead speed of 300 mm/min, and the numerical value thereof was taken as the heat-seal strength.

[0122] [Peeling Appearance]

[0123] After the heat-sealed portion was peeled off, the peeled state of the sample was confirmed, and the occurrence of cohesive peeling, film breakage, and film tearing was observed.

[0124] Peel indicates that peeling occurred only at the interface, Tear indicates that the edge of the sealed surface was broken, and indicates that Peel and Tear were mixed.

[0125] [Peeling Energy]

[0126] According to Kazuo Hishinuma, Proposal of measurement and evaluation method of peeling energy on the sealing surface of thermal sealing (heat-seal), Journal of the Adhesion Society of Japan, 2006, Vol. 42, No. 4, pp. 146-152, the peeling energy S was calculated by the following formula.

[00001]$\begin{array}{cc}S=\underset{L=0}{\stackrel{\mathrm{Ld}}{.Math.}}F.Math.l& \left[\mathrm{Math}.1\right]\end{array}$ [0127] S: peeling energy (mJ) [0128] F: tensile strength (N) at each separation distance point [0129] l: unit distance (mm) for energy calculation [0130] Lt: tensile distance (mm) at the time of occurrence of breakage

[0131] The following polymers were used in Examples and Comparative Examples.

[0132] <Heat-Seal Layer>

<Propylene Polymer (A)>

[0133] terPP: propylene terpolymer (A-1) was used as the propylene polymer (A).

[0134] MFR (230 C., 2.16 kg load, in accordance with ASTM D1238): 5.5 g/10 min, melting point: 132 C., propylene content: 92 mol %, ethylene content: 3 mol %, 1-butene content: 5 mol %.

[0135] <Olefin Polymer (B)>

[0136] PER (B2-1): propylene.Math.ethylene copolymer was used as the olefin polymer (B).

[0137] MFR (230 C., 2.16 kg load, in accordance with ASTM D1238): 3 g/10 min, MFR (190 C., 2.16 kg load, in accordance with ASTM D1238): 1.4 g/10 min, melting point: 108 C., propylene content: 78 mol %, ethylene content: 22 mol %.

[0138] <Adjacent Layer>

[0139] <Propylene polymer (A)>

[0140] hPP (A-2): homopolypropylene (propylene homopolymer) was used as the propylene polymer (A).

[0141] MFR (230 C., 2.16 kg load, in accordance with ASTM D1238): 3.0 g/10 min, melting point: 161 C.

[0142] <Olefin Polymer (B)>

[0143] The following HP-LDPE (B1-1), L-LDPE (B1-2), EBR (B1-3), EBR (B1-4), and EBR (B1-5) were used as the olefin polymer (B).

[0144] <Hp-Ldpe (B1-1)>

[0145] A high-pressure low-density polyethylene (Mirason F9673P, manufactured by DOW-MITSUI POLYCHEMICALS CO., LTD.) was used.

[0146] MFR (190 C., 2.16 kg load, in accordance with ASTM D1238): 1.1 g/10 min, density: 918 kg/m 3, melting point: 108 C.

[0147] <L-LDPE (B1-2)>

[0148] A linear low-density polyethylene (Evolue SP0510, manufactured by Prime Polymer Co., Ltd.) was used.

[0149] MFR (190 C., 2.16 kg load, in accordance with ASTM D1238): 1.2 g/10 min, density (in accordance with JIS K7112): 903 kg/m 3, melting point: 98 C.

[0150] <EBR (B1-3)>

[0151] Ethylene.Math.1-butene copolymer (TAFMER A-0585N, manufactured by Mitsui Chemicals, Inc.)

[0152] MFR (190 C., 2.16 kg load, in accordance with ASTM D1238): 0.5 g/10 min, density (in accordance with ASTM D1505): 885 kg/m 3, melting point: 66 C.

[0153] <EBR (B1-4)>

[0154] Ethylene.Math.1-butene copolymer (TAFMER A-1085S, manufactured by Mitsui Chemicals, Inc.)

[0155] MFR (190 C., 2.16 kg load, in accordance with ASTM D1238): 1.2 g/10 min, density (in accordance with ASTM D1505): 885 kg/m 3, melting point: 66 C.

[0156] <EBR (B1-5)>

[0157] Ethylene.Math.1-butene copolymer (TAFMER A-4085S, manufactured by Mitsui Chemicals, Inc.)

[0158] MFR (190 C., 2.16 kg load, in accordance with ASTM D1238): 3.6 g/10 min, density (in accordance with ASTM D1505): 885 kg/m 3, melting point: 66 C.

[0159] <Propylene Polymer (B2)>

[0160] As the propylene polymer (B2), there was used a propylene.Math.ethylene.Math.1-butene copolymer (hereinafter referred to as PSBR (B2-2)) prepared in accordance with the method described in the Example section of Third Invention described in WO2006/57361 pamphlet, having an ethylene content of 14 mol %, a propylene content of 67 mol %, a 1 butene content of 19 mol %, no melting point (Tm) as measured by a conventional method, and an MFR (230 C., 2.16 kg load, in accordance with ASTM D1238) of 6 g/10 min.

[0161] There were kneaded 85% by mass of PEBR (B2-2) and 15% by mass of a propylene homopolymer (A-3) having a melting point (Tm) of 160 C. as measured by a reheating method and an MFR (230 C., 2.16 kg load, in accordance with ASTM D1238) of 7 g/10 minutes, and the mixture was used as a pelletized propylene resin composition (B2-3).

[0162] <PER (B2-4)>

[0163] Propylene.Math.ethylene copolymer (VISTAMAXX 6102, manufactured by ExxonMobil Chemical Company)

[0164] MFR (230 C., 2.16 kg load, in accordance with ASTM D1238): 3 g/10 min, melting point: 108 C.

[0165] <Substrate Film>

[0166] The above hPP (A-2) was used.

Example 1

[0167] A composition for forming the heat-seal layer was prepared by blending 30% by mass of PBR (B2-1) and 70% by mass of terPP (A-1).

[0168] A composition for forming the adjacent layer was prepared by blending 40% by mass of hPP (A-2) and 60% by mass of HP-LDPE (B1-1).

[0169] By co-extruding hPP (A-2) corresponding to the composition for the preparation of the heat-seal layer, the composition for the preparation of the adjacent layer and the substrate film using three extruders connected with T-dies, an unstretched laminated film was obtained in which a sealant film including the heat-seal layer and the adjacent layer and a substrate film formed of hPP (A-2) were laminated in the order of sealant film (heat-seal layer/adjacent layer)/substrate film.

[0170] The obtained unstretched laminated film was biaxially stretched by a batch-type biaxial stretching machine at a stretching temperature of 158 C. and a stretching rate of 238% to verticalhorizontal of 5 times8 times (stress relaxation after stretching: 30 seconds) to produce a laminate in which a sealant film including two layers of a heat-seal layer having a thickness of 3 m and an adjacent layer having a thickness of 3 m and a substrate film having a thickness of 14 m were biaxially stretched.

[0171] The physical properties of the obtained laminate are shown in Table 1.

Example 2

[0172] A laminate was obtained in the same manner as in Example 1, except that 40% by mass of hPP (A-2) and 60% by mass of L-LDPE (B1-2) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 1.

Example 3

[0173] A laminate was obtained in the same manner as in Example 1, except that 30% by mass of hPP (A-2), 60% by mass of L-LDPE (B1-2), and 10% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 1.

Example 4

[0174] A laminate was obtained in the same manner as in Example 1, except that 20% by mass of hPP (A-2), 60% by mass of L-LDPE (B1-2), and 20% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 1.

Example 5

[0175] A laminate was obtained in the same manner as in Example 1, except that 10% by mass of hPP (A-2), 60% by mass of L-LDPE (B1-2), and 30% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 1.

Example 6

[0176] A laminate was obtained in the same manner as in Example 1, except that 20% by mass of hPP (A-2), 60% by mass of EBR (B1-3), and 20% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 1.

Example 7

[0177] A laminate was obtained in the same manner as in Example 1, except that 80% by mass of EBR (B1-3) and 20% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 1.

Example 8

[0178] A laminate was obtained in the same manner as in Example 1, except that 40% by mass of hPP (A-2) and 60% by mass of EBR (B1-4) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 1.

Example 9

[0179] A laminate was obtained in the same manner as in Example 1, except that 20% by mass of hPP (A-2), 60% by mass of EBR (B1-4), and 20% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 2.

Example 10

[0180] A laminate was obtained in the same manner as in Example 1, except that 60% by mass of EBR (B1-4) and 40% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 2.

Example 11

[0181] A laminate was obtained in the same manner as in Example 1, except that 40% by mass of hPP (A-2), 40% by mass of EBR (B1-4), and 20% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 2.

Example 12

[0182] A laminate was obtained in the same manner as in Example 1, except that 20% by mass of hPP (A-2), 40% by mass of EBR (B1-4), and 40% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 2.

Example 13

[0183] A laminate was obtained in the same manner as in Example 1, except that 40% by mass of EBR (B1-4) and 60% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 2.

Example 14

[0184] A laminate was obtained in the same manner as in Example 1, except that 80% by mass of EBR (B1-4) and 20% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 2.

Example 15

[0185] A laminate was obtained in the same manner as in Example 1, except that 60% by mass of EBR (B1-5) and 40% by mass of the hPP (A-2) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 2.

Example 16

[0186] A laminate was obtained in the same manner as in Example 1, except that 20% by mass of hPP (A-2), 60% by mass of EBR (B1-5), and 20% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 2.

Example 17

[0187] A laminate was obtained in the same manner as in Example 1, except that 80% by mass of EBR (B1-5) and 20% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in

[0188] Table 3.

Example 18

[0189] A laminate was obtained in the same manner as in Example 1, except that 40% by mass of hPP (A-2), 40% by mass of EBR (B1-5), and 20% by mass of the propylene resin composition (B2-3) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 3.

Example 19

[0190] A laminate was obtained in the same manner as in Example 1, except that 40% by mass of hPP (A-2), 48% by mass of EBR (B1-4), and 12% by mass of PER (B2-4) were blended to prepare a composition for forming the adjacent layer. The physical properties of the obtained laminate are shown in Table 3.

Example 20

[0191] An unstretched laminated film was obtained in the same manner as in Example 9.

[0192] The obtained unstretched laminated film was biaxially stretched by a batch-type biaxial stretching machine at a stretching temperature of 158 C. and a stretching rate of 238% to verticalhorizontal of 5 times8 times (stress relaxation after stretching: 30 seconds) to produce a laminate in which a sealant film including two layers of a heat-seal layer having a thickness of 1 m and an adjacent layer having a thickness of 3 m and a substrate film having a thickness of 14 m were biaxially stretched.

[0193] The physical properties of the obtained laminate are shown in Table 3.

Example 21

[0194] An unstretched laminated film was obtained in the same manner as in Example 9.

[0195] The obtained unstretched laminated film was biaxially stretched by a batch-type biaxial stretching machine at a stretching temperature of 158 C. and a stretching rate of 238% to verticalhorizontal of 5 times8 times (stress relaxation after stretching: 30 seconds) to produce a laminate in which a sealant film including two layers of a heat-seal layer having a thickness of 0.5 m and an adjacent layer having a thickness of 3 m and a substrate film having a thickness of 14 m were biaxially stretched.

[0196] The physical properties of the obtained laminate are shown in Table 3.

Example 22

[0197] An unstretched laminated film was obtained in the same manner as in Example 9.

[0198] The obtained unstretched laminated film was biaxially stretched by a batch-type biaxial stretching machine at a stretching temperature of 158 C. and a stretching rate of 238% to verticalhorizontal of 5 times8 times (stress relaxation after stretching: 30 seconds) to produce a laminate in which a sealant film including two layers of a heat-seal layer having a thickness of 3 m and an adjacent layer having a thickness of 2 m and a substrate film having a thickness of 14 m were biaxially stretched.

[0199] The physical properties of the obtained laminate are shown in Table 3.

Example 23

[0200] An unstretched laminated film was obtained in the same manner as in Example 9.

[0201] The obtained unstretched laminated film was biaxially stretched by a batch-type biaxial stretching machine at a stretching temperature of 158 C. and a stretching rate of 238% to verticalhorizontal of 5 times8 times (stress relaxation after stretching: 30 seconds) to produce a laminate in which a sealant film including two layers of a heat-seal layer having a thickness of 3 m and an adjacent layer having a thickness of 1 m and a substrate film having a thickness of 14 m were biaxially stretched.

[0202] The physical properties of the obtained laminate are shown in Table 3.

Example 24

[0203] An unstretched laminated film was obtained in the same manner as in Example 9.

[0204] The obtained unstretched laminated film was biaxially stretched by a batch-type biaxial stretching machine at a stretching temperature of 158 C. and a stretching rate of 238% to verticalhorizontal of 5 times8 times (stress relaxation after stretching: 30 seconds) to produce a laminate in which a sealant film including two layers of a heat-seal layer having a thickness of 1 m and an adjacent layer having a thickness of 5 m and a substrate film having a thickness of 14 m were biaxially stretched.

[0205] The physical properties of the obtained laminate are shown in Table 3.

Comparative Example 1

[0206] A laminate was obtained in the same manner as in Example 1, except that 100% by mass of hPP (A-2) was used for the adjacent layer. The physical properties of the obtained laminate are shown in Table 3.

TABLE-US-00001 TABLE 1 Example Example Example Example 1 2 3 4 Laminate Sealant Heat- Thickness [m] 3 3 3 3 film seal Component terPP (A-1) 70 70 70 70 layer (A) [% by mass] Component PBR (B2-1) 30 30 30 30 (B) [% by mass] Adjacent Thickness [m] 3 3 3 3 layer Component hPP (A-2) 40 40 30 20 (A) [% by mass] Component HP-LDPE (B1-1) 60 (B) [% by mass] L-LDPE (B1-2) 60 60 60 [% by mass] EBR (B1-3) [% by mass] EBR (B1-4) [% by mass] EBR (B1-5) [% by mass] Propylene resin 10 20 composition (B2-3) (8.5) (17.0) (PEBR (B2-2) [% by mass]) PER (B2-4) [% by mass] Substrate film Thickness [m] 14 14 14 14 Component hPP (A-2) 100 100 100 100 (A) [% by mass] Example Example Example Example 1 2 3 4 Content of components Component (A) 40.0 40.0 31.5 23.0 (A) and (B) in adjacent [% by mass] layer Component (B) 60.0 60.0 68.5 77.0 [% by mass] Heat-seal strength 90 C. 3.4 2.9 4.5 8.5 (N/15 mm) 100 C. 3.9 7.9 8.4 9.5 pressure: 0.1 MPa 110 C. 2.7 6.2 9.06 11.6 times: 0.5 seconds 120 C. 3.2 7.1 9.5 15.5 Peeling appearance 90 C. Peel Peel Peel Peel Peel: peeling occurred 100 C. Peel Peel Peel Tear only at interface 110 C. Peel Peel Tear Tear Tear: edge of the sealed 120 C. Peel Peel Tear Tear surface was broken : the above two states were mixed Peeling energy (mJ) 90 C. 34.5 24.7 30.5 52.5 100 C. 27.7 70 58.2 61.4 110 C. 31 61.5 79.4 49 120 C. 35.6 72.6 73.8 66.8 Example Example Example Example 5 6 7 8 Laminate Sealant Heat- Thickness [m] 3 3 3 3 film seal Component terPP (A-1) 70 70 70 70 layer (A) [% by mass] Component PBR (B2-1) 30 30 30 30 (B) [% by mass] Adjacent Thickness [m] 3 3 3 3 layer Component hPP (A-2) 10 20 40 (A) [% by mass] Component HP-LDPE (B1-1) (B) [% by mass] L-LDPE (B1-2) 60 [% by mass] EBR (B1-3) 60 80 [% by mass] EBR (B1-4) 60 [% by mass] EBR (B1-5) [% by mass] Propylene resin 30 20 20 composition (B2-3) (25.5) (17.0) (17.0) (PEBR (B2-2) [% by mass]) PER (B2-4) [% by mass] Substrate film Thickness [m] 14 14 14 14 Component hPP (A-2) 100 100 100 100 (A) [% by mass] Example Example Example Example 5 6 7 8 Content of components Component (A) 14.5 23.0 3.0 40.0 (A) and (B) in adjacent [% by mass] layer Component (B) 85.5 77.0 97.0 60.0 [% by mass] Heat-seal strength 90 C. 11.5 11.4 9.7 10.0 (N/15 mm) 100 C. 10.5 11.0 11.2 9.0 pressure: 0.1 MPa 110 C. 13.2 13.1 11.7 9.1 times: 0.5 seconds 120 C. 14.5 17.0 13.7 8.5 Peeling appearance 90 C. Peel Peel Peel: peeling occurred 100 C. Tear Peel only at interface 110 C. Tear Tear Peel Tear: edge of the sealed 120 C. Tear Tear Peel surface was broken : the above two states were mixed Peeling energy (mJ) 90 C. 75 87.4 81.9 83.2 100 C. 86.2 91.3 94 78.4 110 C. 140 132 105 90 120 C. 110 200 121 81.7

TABLE-US-00002 TABLE 2 Example Example Example Example 9 10 11 12 Laminate Sealant Heat- Thickness [m] 3 3 3 3 film seal Component terPP (A-1) 70 70 70 70 layer (A) [% by mass] Component PBR (B2-1) 30 30 30 30 (B) [% by mass] Adjacent Thickness [m] 3 3 3 3 layer Component hPP (A-2) 20 40 20 (A) [% by mass] Component HP-LDPE (B1-1) (B) [% by mass] L-LDPE (B1-2) [% by mass] EBR (B1-3) [% by mass] EBR (B1-4) 60 60 40 40 [% by mass] EBR (B1-5) [% by mass] Propylene resin 20 40 20 40 composition (B2-3) (17.0) (34.0) (17.0) (34.0) (PEBR (B2-2) [% by mass]) PER(B2-4) [% by mass] Substrate film Thickness [m] 14 14 14 14 Component hPP (A-2) 100 100 100 100 (A) [% by mass] Example Example Example Example 9 10 11 12 Content of Component (A) 23.0 6.0 43.0 26.0 components (A) and [% by mass] (B) in adjacent layer Component (B) 77.0 94.0 57.0 74.0 [% by mass] Heat-seal strength 90 C. 9.0 9.7 10.4 9.6 (N/15 mm) 100 C. 12.4 10.7 12.2 10.9 pressure: 0.1 MPa 110 C. 13.6 14.1 13.2 12.1 times: 0.5 seconds 120 C. 16.3 16.0 15.6 16.0 Peeling appearance 90 C. Peel Peel Peel Peel: peeling occurred 100 C. Peel Peel only at interface 110 C. Peel Tear: edge of the sealed 120 C. Tear Tear Tear surface was broken : the above two states were mixed Peeling energy (mJ) 90 C. 68 78.2 63.3 83.2 100 C. 119 120 99.4 98.3 110 C. 139 182 125 119 120 C. 182 237 165 171 Example Example Example Example 13 14 15 16 Laminate Sealant Heat- Thickness [m] 3 3 3 3 film seal Component terPP (A-1) 70 70 70 70 layer (A) [% by mass] Component PBR (B2-1) 30 30 30 30 (B) [% by mass] Adjacent Thickness [m] 3 3 3 3 layer Component hPP (A-2) 40 20 (A) [% by mass] Component HP-LDPE (B1-1) (B) [% by mass] L-LDPE (B1-2) [% by mass] EBR (B1-3) [% by mass] EBR (B1-4) 40 80 [% by mass] EBR (B1-5) 60 60 [% by mass] Propylene resin 60 20 20 composition (B2-3) (51.0) (17.0) (17.0) (PEBR (B2-2) [% by mass]) PER (B2-4) [% by mass] Substrate film Thickness [m] 14 14 14 14 Component hPP (A-2) 100 100 100 100 (A) [% by mass] Example Example Example Example 13 14 15 16 Content of Component (A) 9.0 3.0 40.0 23.0 components (A) and [% by mass] (B) in adjacent layer Component (B) 91.0 97.0 60.0 77.0 [% by mass] Heat-seal strength 90 C. 9.9 9.7 0.1 7.0 (N/15 mm) 100 C. 10.6 12.0 4.8 7.0 pressure: 0.1 MPa 110 C. 13.2 12.9 4.2 7.0 times: 0.5 seconds 120 C. 12.9 13.5 6.9 7.6 Peeling appearance 90 C. Peel Peel Peel Peel: peeling occurred 100 C. Peel Peel Peel only at interface 110 C. Peel Peel Tear: edge of the sealed 120 C. Tear Peel Peel surface was broken : the above two states were mixed Peeling energy (mJ) 90 C. 90.2 77 0.2 48.3 100 C. 142 102 42 60.9 110 C. 171 139 41.8 70.5 120 C. 163 156 66.2 78.6

TABLE-US-00003 TABLE 3 Example Example Example 17 18 19 Laminate Sealant Heat- Thickness [m] 3 3 3 film seal Component terPP (A-1) 70 70 70 layer (A) [% by mass] Component PBR (B2-1) 30 30 30 (B) [% by mass] Adjacent Thickness [m] 3 3 3 layer Component hPP (A-2) 40 40 (A) [% by mass] Component HP-LDPE (B1-1) (B) [% by mass] L-LDPE (B1-2) [% by mass] EBR (B1-3) [% by mass] EBR (B1-4) 48 [% by mass] EBR (B1-5) 80 40 [% by mass] Propylene resin 20 20 composition (B2-3) (17.0) (17.0) (PEBR (B2-2) [% by mass]) PER (B2-4) 12 [% by mass] Substrate film Thickness [m] 14 14 14 Component hPP (A-2) 100 100 100 (A) [% by mass] Example Example Example 17 18 19 Content of Component (A) 3.0 43.0 40.0 components (A) and [% by mass] (B) in adjacent layer Component (B) 97.0 57.0 60.0 [% by mass] Heat-seal strength 90 C. 9.6 7.8 4.3 (N/15 mm) 100 C. 8.8 8.3 8.3 pressure:0.1 MPa 110 C. 8.3 8.6 13.6 times:0.5 seconds 120 C. 8.0 14.1 15.9 Peeling appearance 90 C. Peel Peel Peel Peel: peeling occurred 100 C. Peel Peel Peel only at interface 110 C. Peel Peel Tear Tear: edge of the sealed 120 C. Peel Tear Tear surface was broken : the above two states were mixed Peeling energy (mJ) 90 C. 78.1 48.3 37 100 C. 71.6 71.6 69.7 110 C. 87.4 91 60.2 120 C. 84.7 61.8 78.9 Example Example Example 20 21 22 Laminate Sealant Heat- Thickness [m] 1 0.5 3 film seal Component terPP (A-1) 70 70 70 layer (A) [% by mass] Component PBR (B2-1) 30 30 30 (B) [% by mass] Adjacent Thickness [m] 3 3 2 layer Component hPP (A-2) 20 20 20 (A) [% by mass] Component HP-LDPE (B1-1) (B) [% by mass] L-LDPE (B1-2) [% by mass] EBR (B1-3) [% by mass] EBR (B1-4) [% by mass] EBR (B1-5) 60 60 60 [% by mass] Propylene resin 20 20 20 composition (B2-3) (17.0) (17.0) (17.0) (PEBR (B2-2) [% by mass]) PER(B2-4) [% by mass] Substrate film Thickness [m] 14 14 14 Component hPP (A-2) 100 100 100 (A) [% by mass] Example Example Example 20 21 22 Content of Component (A) 23.0 23.0 23.0 components (A) and [% by mass] (B) in adjacent layer Component (B) 77.0 77.0 77.0 [% by mass] Heat-seal strength 90 C. 5.4 5.7 7.5 (N/15 mm) 100 C. 9.3 6.8 9.8 pressure:0.1 MPa 110 C. 10.5 7.4 12.3 times:0.5 seconds 120 C. 11.1 7.5 13.4 Peeling appearance 90 C. Peel Peel Peel Peel: peeling occurred 100 C. Peel Peel Peel only at interface 110 C. Peel Peel Tear: edge of the sealed 120 C. Peel Peel surface was broken : the above two states were mixed Peeling energy (mJ) 90 C. 41.3 37.6 53.4 100 C. 65 48.1 79.7 110 C. 80.2 53.3 104 120 C. 91.6 64.1 101 Comparative Example Example Example 23 24 1 Laminate Sealant Heat- Thickness [m] 3 1 3 film seal Component terPP (A-1) 70 70 70 layer (A) [% by mass] Component PBR (B2-1) 30 30 30 (B) [% by mass] Adjacent Thickness [m] 1 5 3 layer Component hPP (A-2) 20 20 100 (A) [% by mass] Component HP-LDPE (B1-1) (B) [% by mass] L-LDPE (B1-2) [% by mass] EBR (B1-3) [% by mass] EBR (B1-4) [% by mass] EBR (B1-5) 60 60 [% by mass] Propylene resin 20 20 composition (B2-3) (17.0) (17.0) (PEBR (B2-2) [% by mass]) PER (B2-4) [% by mass] Substrate film Thickness [m] 14 14 14 Component hPP (A-2) 100 100 100 (A) [% by mass] Comparative Example Example Example 23 24 1 Content of Component (A) 23.0 23.0 100.0 components (A) and [% by mass] (B) in adjacent layer Component (B) 77.0 77.0 0.0 [% by mass] Heat-seal strength 90 C. 5.3 7.4 4.2 (N/15 mm) 100 C. 7.9 10.8 4.0 pressure: 0.1 MPa 110 C. 7.6 12.7 4.1 times: 0.5 seconds 120 C. 7.2 13.1 3.5 Peeling appearance 90 C. Peel Peel Tear Peel: peeling occurred 100 C. A Peel Tear only at interface 110 C. Tear Tear Tear: edge of the sealed 120 C. Tear Tear surface was broken : the above two states were mixed Peeling energy (mJ) 90 C. 28.6 56.8 12.5 100 C. 36 84 12.4 110 C. 20 111 12.6 120 C. 14.7 123 13.1