Extrudable barrier polymer compositions, process for preparing the compositions and monolayer or multilayer structures comprising the compositions
AssigneeDow Global Technologies LLC
InventorSusan M. Kling
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Abstract
A process for preparing barrier polymer compositions comprises adding an additive, in the form of a latex, to an aqueous dispersion of barrier polymer particles, coagulating the latex additive on the surface of the polymer particles to coat the polymer particles and then drying the latex-coated polymer particles.
Claims27
A vinylidene chloride or vinyl chloride polymer composition comprising vinylidene chloride polymer particles or vinyl chloride polymer particles and a latex additive coagulated on the surface of the polymer particles, the latex additive comprising 7.3 percent by weight methacrylonitrile, 3.2 percent by weight methyl methacrylate and 89.5 percent by weight vinylidene chloride.
A vinylidene chloride or vinyl chloride polymer composition comprising vinylidene chloride polymer particles or vinyl chloride polymer particles and a latex additive coagulated on the surface of the polymer particles, the latex additive comprising 2-propenoic acid 2-methyl-butyl ester, butyl 2-propenoate/methyl 2-methyl-2-propenoate polymer, and sodium lauryl sulfate.
A process for preparing a vinylidene chloride or vinyl chloride polymer composition which comprises:
- (A) adding an additive in the form of a latex to an aqueous dispersion of uncoagulated vinylidene chloride or vinyl chloride polymer particles;
- and
- (B) coagulating the latex additive on the surface of the polymer particles to coat the polymer particles wherein the latex additive is coagulated on the surface of the polymer particles by mechanical means or by adding a chemical coagulant to the aqueous dispersion of polymer particles containing the latex additive.
A process for preparing a vinylidene chloride or vinyl chloride polymer composition which comprises:
- (A) adding an additive in the form of a latex to an aqueous dispersion of vinylidene chloride or vinyl chloride polymer particles;
- and
- (B) coagulating the latex additive on the surface of the polymer particles to coat the polymer particles, the latex additive comprising 7.3 percent by weight methacrylonitrile, 3.2 percent by weight methyl methacrylate and 89.5 percent by weight vinylidene chloride.
A process for preparing a vinylidene chloride or vinyl chloride polymer composition which comprises:
- (A) adding an additive in the form of a latex to an aqueous dispersion of vinylidene chloride or vinyl chloride polymer particles;
- and
- (B) coagulating the latex additive on the surface of the polymer particles to coat the polymer particles, the latex additive comprising 2-propenoic acid, 2-methyl-butyl ester, butyl 2-propenoate/methyl 2-methyl-2-propenoate polymer, and sodium lauryl sulfate.
A process for preparing a vinylidene chloride or vinyl chloride polymer composition which comprises:
- (A) adding an additive in the form of a latex to an aqueous dispersion of uncoagulated vinylidene chloride or vinyl chloride polymer particles wherein the aqueous dispersion of vinylidene chloride or vinyl chloride polymer particles is formed as a result of a polymerization of monomers including vinylidene chloride and/or vinyl chloride;
- and
- (B) coagulating the latex additive on the surface of the polymer particles to coat the polymer particles wherein the latex additive is coagulated on the surface of the polymer particles by mechanical means or by adding a chemical coagulant to the aqueous dispersion of polymer particles containing the latex additive.
Dependencies are inferred from the claim text.