Hydrolyzed ethylene-vinyl acetate resin containing diene-nitrile

Details Hydrolyzed ethylene-vinyl acetate resin containing diene-nitrile Hydrolyzed ethylene-vinyl acetate resin containing diene-nitrile

1979-06-28

1981-04-28

Ziegler, J.

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, C08L 2904

Patent

active

042647460

ABSTRACT:
Permanently miscible resin blends containing hydrolyzed ethylene-vinyl acetate resin and demonstrating improved impact-resistance compared to the unblending 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 resin which is a diene-nitrile copolymer in which the diene is present at about 50 to about 85 weight percent and the nitrile is present at about 50 to about 15 weight percent, in the presence of (c) an amount of acid compatibilizing agent and for a period sufficient to provide the aforesaid permanently miscible blends.

REFERENCES:
patent: 3336149 (1967-08-01), Fox et al.
patent: 3437718 (1969-04-01), Rees
patent: 3549727 (1970-12-01), Coates et al.
patent: 3585177 (1971-06-01), Gardner et al.
patent: 3887649 (1975-06-01), Takida et al.

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