Method of polymerizing vinyl chloride

Details Method of polymerizing vinyl chloride Method of polymerizing vinyl chloride

1989-12-11

1991-11-19

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5263441, C08F 438

Patent

active

050667440

ABSTRACT:
A polyvinyl chloride polymer or copolymer having excellent thermal resistance and being free from FEs and offensive smell can be obtained in a high yield through a polymerization reaction of vinyl chloride monomer alone or together with a vinyl monomer copolymerizable therewith by the use of a combination system polymerization initiator consisting of (A) .alpha.,.alpha.'-bis(neodecanoylperoxy)-diisopropylbenzene, and (B) at least one of peroxy ester, diacyl peroxide and peroxy dicarbonate, each of which has a 10-hour half-life period temperature within the range of 40.degree.-65.degree. C. in its 0.1 mol concentration solution in benzene.

REFERENCES:
patent: 4777191 (1988-10-01), Komai et al.
patent: 4914169 (1990-04-01), Suyama et al.

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