Vinylidene chloride interpolymer

Details Vinylidene chloride interpolymer Vinylidene chloride interpolymer

C - Chemistry, Metallurgy

08

L

400/4046, 400/40

C08L 27/08 (2006.01) C08K 5/1515 (2006.01) C08L 23/08 (2006.01) C08L 23/30 (2006.01)

Patent

CA 1329288

ABSTRACT The present invention is a composition and process for making a vinylidene chloride interpolymer with improved extrudability, wherein the vinylidene chloride interpolymer is blended with a unique combination of additives which comprises an extrusion aid selected from the group consisting of oxidized polyethylene; oxidized polypropylene; or mixtures thereof, in an amount of from about 0.01 to about 0.5 weight percent; a paraffin wax present in an amount of from about 0.005 to about 1 weight percent; ethylene- vinyl acetate present in an amount of from about 0.01 to about 2 weight percent, and an epoxidized oil or resin present in an amount of from about 0.1 to about 3 weight percent, all percentages being based on the total weight of the mixture. In a preferred embodiment the present invention further comprises blending the above-described mixture with an inorganic base present in an amount of from about 0.01 to about 5 weight percent, based upon the weight percent of the mixture. Exemplary inorganic bases include magnesium hydroxide, tetrasodium pyrophosphate, magnesium oxide, and calcium hydroxy phosphate.

579707

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