Cross-linked dispersion copolymers containing vinyl acetate

Details Cross-linked dispersion copolymers containing vinyl acetate Cross-linked dispersion copolymers containing vinyl acetate

1986-12-08

1988-04-19

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524832, 524833, 5262322, C08F 216

Patent

active

047390042

ABSTRACT:
Cross-linked dispersion copolymers are disclosed which are produced by the aqueous emulsion copolymerization of from 15% to 80% of vinyl acetate, and from 5% to 70% of polyethylenically unsaturated cross-linking agent, like hexane diol diacrylate, from 1% to 40% of other copolymerizable monoethylenically unsaturated monomer being desirably present, preferably from 5% to 25% of a reactive monomer which is desirably hydroxyl-functional. The dispersion copolymers are suspended in active organic solvents which extensively swell the copolymer particles. These suspensions are useful in thermosetting solution coating compositions where they provide improved thermal sag resistance.

REFERENCES:
patent: 4110288 (1978-08-01), Schirmann et al.
patent: 4290932 (1981-08-01), Wright et al.

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