Aqueous suspension process for producing copolymers of vinyl chl

Details Aqueous suspension process for producing copolymers of vinyl chl Aqueous suspension process for producing copolymers of vinyl chl

1992-02-12

1998-12-08

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 220

Patent

active

058470620

ABSTRACT:
Copolymers of vinyl or vinylidene halides and vinyl esters of fatty acids 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 the composition be added before the start of the polymerization.

REFERENCES:
patent: 3627820 (1971-12-01), Chujo
patent: 4189552 (1980-02-01), Kuwata

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