Low molecular weight copolymers of vinyl halide/vinyl acetate pr

Details Low molecular weight copolymers of vinyl halide/vinyl acetate pr Low molecular weight copolymers of vinyl halide/vinyl acetate pr

1986-04-21

1990-06-05

Henderson, Christopher

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526214, 526224, C08F 238, C08F 220

Patent

active

049315188

ABSTRACT:
Copolymers of vinyl or vinylidene halides and vinyl esters of C.sub.2 and C.sub.3 acids are provided having low molecular weights, good particle characteristics, and improved melt flow are made by aqueous polymerization utilizing an effective amount of a mercaptan as a chain transfer agent, wherein the chain transfer agent is admixed with the vinyl esters to form a chain transfer composition, and may be added before the start of the polymerization.

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patent: 3706722 (1972-12-01), Nelson et al.
patent: 3842056 (1974-10-01), Torigoe et al.
patent: 4013824 (1977-03-01), Uraneck et al.
patent: 4189552 (1980-02-01), Kuwata et al.
patent: 4370252 (1983-01-01), Uraneck et al.

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