Appeal No. 1997-4443
Application No. 08/246,019
APPENDIX
1. A vinylidene chloride polymer composition comprising (1) a
vinlyidene chloride polymer formed from a monomer mixture wherein the major
component is vinylidene chloride and the remainder is at least one
monoethyleically unsaturated monomer copolymerizable therewith, excluding
vinyl chloride, and (2) a glycerin ester represented by the formula:
H2 H H2
` ` `
C - C - C
` ` `
O O O
` ` `
R1 R2 R3
wherein each of R1, R2 and R3 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 of glycerin, the second acyl group is present in an amount, on
the average, of at least 0.9 mol per of gylcerin 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 in2-atm-day.
2. The composition of Claim 1 wherein the monomer mixture comprises from
about 91 to about 94 weight percent vinylidene chloride and from about 6 to about 9
weight percent methyl acrylate.
6. A packaging film comprising the vinylidene chloride polymer composition of
Claim 1.
14. A vinylidene chloride polymer composition consisting essentially of (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:
H2 H H2
` ` `
C - C - C
` ` `
O O O
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