Abstract: An oxygen and moisture impermeable multilayer barrier film is provided including a barrier layer comprising a homopolymer of vinylidene chloride or a copolymer of vinylidene chloride and vinyl chloride or methyl methacrylate. The barrier layer may be coated onto or coextruded with a water soluble film layer comprising a blend of a water soluble polymer such as polyvinyl alcohol, polycaprolactone, or polyethyloxozaline and a thermoplastic polyurethane. The multilayer film may be used for reusable or disposable ostomy bags and for heat sealable bags used in packaging agricultural chemicals, detergents, and other household chemicals.

Abstract: The present invention is a coated particulate in the form of a powder or in the form of a pellet, the particulate comprising a vinylidene chloride interpolymer and being coated with at least one processing aid at a level effective to improve the extrudability of the vinylidene chloride interpolymer. The processing aid beneficially is selected from the group consisting of fatty esters; wax esters; glycerol esters; glycol esters; fatty alcohol esters, fatty alcohols; fatty amides; metallic salts of fatty acids; olefin polymers and polyolefin waxes.

Abstract: The present invention is a polymer composition comprising vinylidene chloride with improved thermal stability. The process comprises either advance addition or polymer slurry addition of a salt of a non-alkenic weak acid during the polymerization of the vinylidene chloride. The polymeric composition comprises a reaction product of a salt of a nonalkenic weak acid in an amount effective to provide improved thermal stability to the polymeric composition. In a preferred embodiment, the present invention further comprises adding a salt of a carboxylic acid to the polymer slurry.

Abstract: The present invention is a polymeric composition with improved extrudability comprising a vinylidene chloride interpolymer and a Group IIA alkaline-earth hydroxyphosphate, which is incorporated with the vinylidene chloride interpolymer by advance addition, polymer slurry addition or, finally, by dry blending addition. The Group IIA alkaline-earth hydroxyphosphate will be present in an amount of between about 0.01 to about 5 weight percent, said weight percents being based on the total weight of the polymeric composition.

Abstract: Crystallizable, controlled composition interpolymers consisting essentially of (a) from about 88 to about 92 mole percent vinylidene chloride, (b) from about 8 to about 12 mole percent methyl methacrylate, and (c) up to about 3 weight percent, based on the combined weight of (a) and (b), of one or more ethylenically unsaturated comonomers; such interpolymers having a relative viscosity of at least about 1.40.degree. at 25.degree. C. as a 1 percent solution in tetrahydrofuran and being capable of forming substantially haze-free solutions when present in an amount of about 20 percent solids in a solvent mixture consisting of 65 percent by weight tetrahydrofuran and 35 percent by weight toluene.