Hydrolyzed ethylene-vinyl acetate copolymer

Details Hydrolyzed ethylene-vinyl acetate copolymer Hydrolyzed ethylene-vinyl acetate copolymer

1987-07-15

1989-08-15

Henderson, Christopher A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

5253306, C08F 812

Patent

active

048575895

ABSTRACT:
A hydrolyzed ethylene-vinyl acetate copolymer having an ethylene content of 20 to 60% by mole and a defree of hydrolysis in the vinyl acetate component of at least 95% by mole, and having an ash content of not more than 20 ppm and an alkali metal content of not more than 5 ppm. The hydrolyzed copolymer of the invention can form films whose gas impermeability is not lowered even at high humidity.

REFERENCES:
patent: 4611029 (1986-09-01), Takahashi

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