Resin composition and multilayered structure

Details Resin composition and multilayered structure Resin composition and multilayered structure

1987-12-30

1990-05-01

Lieberman, Allan M.

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

Synthetic resins

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

525 60, 525 61, C08L 2902, C08L 2904

Patent

active

049219073

ABSTRACT:
A resin composition comprising from about 95 to about 30 parts by weight of a saponified product of an ethylene-vinyl acetate copolymer (A), comprising ethylene units in an amount of from about 20 to about 55 mole percent, and exhibiting a degree of saponification of the vinyl acetate component of at least about 90 mole percent, and from about 5 to about 70 parts by weight of a saponified product of a modified ethylene-vinyl acetate copolymer (B) comprising pyrrolidone ring-containing units in an amount of from about 0.1 to about 10 mole percent, and ethylene units in an amount of from about 20 to about 55 mole percent, and exhibiting a degree of saponification of the vinyl acetate component of at least about 90 mole percent, and a multilayered structure made therewith, preferably formed by high speed thermodrawing, exhibiting uniform gas barrier properties and producing a product without pinholes, cracks, and localized areas of uneven stretching.

REFERENCES:
patent: 4576988 (1986-03-01), Tanaka et al.
patent: 4608286 (1986-08-01), Motoishi et al.
patent: 4613644 (1986-09-01), Moritani et al.
patent: 4619849 (1986-10-01), Anzawa et al.
patent: 4636551 (1987-01-01), Okaya et al.
patent: 4640870 (1987-02-01), Akazawa et al.
patent: 4645695 (1987-02-01), Negi et al.
patent: 4684564 (1987-08-01), Satoh et al.
patent: 4713296 (1987-12-01), Aoyama et al.
patent: 4774114 (1988-09-01), Moritani et al.

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