Patent ID: 6291565
Filing Date: 2001-09-18
Classification: B32B,C08F,C08J,C08K,Y10S

Abstract:
A vinylidene chloride polymer composition comprising (1) a vinylidene chloride polymer formed from a monomer mixture wherein the major component is vinylidene chloride and the remainder is at least one monoethylenically unsaturated monomer copolymerizable therewith, excluding vinyl chloride, and (2) a glycerin ester represented by the formula: ##STR2##wherein each of R.sub.1, R.sub.2 and R.sub.3 is independently a hydrogen atom or a mixture of a first acyl group and a second acyl group, the first acyl group having 2 carbon atoms and the second acyl group having 10 to 14 carbon atoms, the first acyl group is present in an amount, on the average, of up to 2 mol per mol of glycerin, the second acyl group is present in an amount, on the average, of at least 0.9 mol per mol of glycerin and the total amount of the acyl groups is, on the average, 2.7 to 3.0 mol per mol of glycerin;the glycerin ester being present in an amount sufficient to provide the composition with an oxygen transmission rate of less than about 9 cc-mil/100 in.sup.2 -atm-day.