| 摘要 |
<p>The present invention is a composition and process for making a vinylidene chloride interpolymer with improved extrudability, wherein the vinylidene chloride interpolymer is blended and 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 is present in an amount of from about 0.5 to about 2 weight percent, and an epoxidized oil or resin present in an amount of from about 0.8 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.</p> |
