Patent classifications
C09D123/0815
PAPER COATED WITH A FUNCTIONAL POLYOLEFIN FILM
The present invention relates to an article and a method for its preparation; the article comprises a cured polymeric film superposing paper or paperboard. The polymeric film is derived from a dispersion which comprises: a) a dispersant which is a copolymer with an acid value of 130 or less, comprising structural units of ethylene and a carboxylic acid monomer, wherein the copolymer has a melt flow index in the range of from 50 to 2000 g/10 min at 190° C./2.16 kg; wherein the weight-to-weight ratio of structural units of ethylene to carboxylic acid monomer is in the range of from 95:5 to 70:30; and wherein the dispersant has a concentration in the range of from 9 to 50 weight percent based on the weight of polymer solids in the dispersion; b) a base polymer comprising non-functionalized ethylene-co-alkene copolymers, wherein the weight-to-weight ratio of the structural units of ethylene to alkene is in the range of from 99.8:0.2 to 50:50; and c) a neutralizing agent which is a hard base and excludes an organic base having a boiling point of less than 250° C.; wherein the concentration of the neutralizing agent is sufficient to neutralize at least half of the carboxylic acid groups associated with the dispersion composition.
The article of the present invention is useful as a barrier to a wide range of hydrophobic and hydrophilic materials.
PAPER COATED WITH A FUNCTIONAL POLYOLEFIN FILM
The present invention relates to an article and a method for its preparation; the article comprises a cured polymeric film superposing paper or paperboard. The polymeric film is derived from a dispersion which comprises: a) a dispersant which is a copolymer with an acid value of 130 or less, comprising structural units of ethylene and a carboxylic acid monomer, wherein the copolymer has a melt flow index in the range of from 50 to 2000 g/10 min at 190° C./2.16 kg; wherein the weight-to-weight ratio of structural units of ethylene to carboxylic acid monomer is in the range of from 95:5 to 70:30; and wherein the dispersant has a concentration in the range of from 9 to 50 weight percent based on the weight of polymer solids in the dispersion; b) a base polymer comprising non-functionalized ethylene-co-alkene copolymers, wherein the weight-to-weight ratio of the structural units of ethylene to alkene is in the range of from 99.8:0.2 to 50:50; and c) a neutralizing agent which is a hard base and excludes an organic base having a boiling point of less than 250° C.; wherein the concentration of the neutralizing agent is sufficient to neutralize at least half of the carboxylic acid groups associated with the dispersion composition.
The article of the present invention is useful as a barrier to a wide range of hydrophobic and hydrophilic materials.
TPO PRIMER
A composition in the form of a solution or dispersion, comprising an anhydride-modified polyolefin, an anhydride-modified styrenic block copolymer, and an isocyanate-containing crosslinker, wherein the anhydride-modified polyolefin and anhydride-modified styrenic block copolymer are present in a total amount in the range of 7% to 18% by weight in total, based on the composition, and in a weight ratio of anhydride-modified polyolefin to anhydride-modified styrenic block copolymer which is in the range of 2:1 to 6:1; the weight ratio of isocyanate-containing crosslinker to the sum of anhydride-modified polyolefin plus anhydride-modified styrenic block copolymer is in the range of 0.2:1 to 0.5:1; and the solvent comprises a ketone as first solvent and an alkylbenzene or an alkane solvent. The compositions are useful for adhering TPO to TPU, polyester or PU. The composition can be used in a process of bonding a first part or coating of a TPO to a second part or coating of TPU, polyester or PU, using heat and optionally pressure, wherein the adhesion has improved peel strength.
Tile containing primer coated substrates with good adhesion
A tile comprising the following components: A) a first film formed from a first composition comprising the following: i) a functionalized olefin-based polymer comprising one or more chemical groups selected from the following: a) a carboxylic acid, and/or b) an anhydride, and, optionally, c) an amino or an amine; and ii) a functionalized styrenic block copolymer, comprising, in polymerized form, styrene, and ethylene and/or at least one alpha-olefin, and comprising one or more chemical groups selected from the following: a) a carboxylic acid, and/or b) an anhydride; and B) a substrate comprising at least one layer formed from a second composition comprising a propylene-based polymer; and wherein the first film covers at least one surface of the substrate.
Polymeric coating compositions and articles coated with the same
Polymeric coating compositions and articles coated with the polymeric coating compositions are provided. The polymeric coating composition can include an ethylene-based polymer that exhibits desirable melting properties and molecular weight distribution. The polymeric coating composition can provide a thin coating layer on an article while still providing advantageous properties, such as seal strength.
Sheet set for encapsulating solar battery
A sheet set for encapsulating a solar battery including a first encapsulating sheet and a second encapsulating sheet which are disposed between a light-incident surface protective member and a back surface protective member, and are used to encapsulate solar battery elements is provided. When the first encapsulating sheet and the second encapsulating sheet are subjected to a heating and pressurization treatment in which the first encapsulating sheet and the second encapsulating sheet are heated and depressurized under defined conditions, a volume resistivity of the first encapsulating sheet measured under defined conditions, is higher than a volume resistivity of the second encapsulating sheet. The first encapsulating sheet is disposed between the light-incident surface protective member and the solar battery elements. The second encapsulating sheet has at least one polar group selected from a carboxyl group, an ester group, a hydroxyl group, an amino group, and an acetal group.
FLAME RETARDANT COMPOSITION
The invention provides aflame retardant composition comprising and ammonium polyphosphate a silane functionalised ethylene copolymer.
FLAME RETARDANT POLYOLEFIN COMPOSITION
The invention provides a flame retardant polyolefin composition comprising a) an ethylene based plastomer with a density in the range of 0.850 to 0.915 g/cm.sup.3 and an MFR.sub.2 in the range 0.5-30 g/10 min; b) a propylene based plastomer with a density in the range of 0.860 to 0.910 g/cm.sup.3 and an MFR.sub.2 in the range 0.01-30 g/10 min; and c) a flame retardant.
FLAME RETARDANT POLYOLEFIN COMPOSITION
The invention provides a flame retardant polyolefin composition comprising a) an ethylene based plastomer with a density in the range of 0.850 to 0.915 g/cm.sup.3 and an MFR.sub.2 in the range 0.5-30 g/10 min; b) a propylene based plastomer with a density in the range of 0.860 to 0.910 g/cm.sup.3 and an MFR.sub.2 in the range 0.01-30 g/10 min; and c) a flame retardant.
PROCESS TO MAKE A COMPOSITE AUTOMOTIVE TRIM PART
The present invention relates to a method for producing a composite part comprising a textured skin and a rigid or foam substrate layer, in particular a composite automotive trim part. The method comprises the steps of spraying or casting an aqueous thermoplastic dispersion onto a rigid or foam substrate composite followed by forming the composite into a composite part comprising a textured skin and a rigid or foam substrate layer. Preferably, the dispersion is derived from the extrusion melt blending of thermoplastic polymer, a dispersing agent, and water.