Blends of hydrolyzed ethylene-vinyl acetate resins having increa

Details Blends of hydrolyzed ethylene-vinyl acetate resins having increa Blends of hydrolyzed ethylene-vinyl acetate resins having increa

1979-06-28

1980-10-14

Seccuro, Carman J.

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

Synthetic resins

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

525196, 525222, C08L 2904

Patent

active

042282500

ABSTRACT:
Resin blends containing hydrolyzed ethylene-vinyl acetate resin and demonstrating improved impact-resistance properties compared to the unblended hydrolyzed ethylene-vinyl acetate resin are obtained by blending (a) as host resin, a copolymer/terpolymer of ethylene, vinyl acetate and vinyl alcohol in which ethylene is present at from about 2 to about 60 weight percent, vinyl acetate is present at from 0 to about 10 weight percent and vinyl alcohol is present at about 98 to about 40 weight percent, with (b) an impact-resistance-increasing amount of an impact modifying resin which is a partially hydrolyzed ethylene-vinyl acetate copolymer in which ethylene is present at about 25 to about 70 weight percent, vinyl acetate is present at about 20 to about 70 weight percent and vinyl alcohol is present at about 0.5 to about 25 weight percent.

REFERENCES:
patent: 3100150 (1963-08-01), Chismar et al.
patent: 3298855 (1967-01-01), Helin et al.
patent: 3847728 (1974-11-01), Hirata et al.
patent: 3887649 (1975-06-01), Takida et al.
patent: 3975463 (1976-08-01), Hirata et al.

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