Process for the polymerization of vinyl halide polymers

Details Process for the polymerization of vinyl halide polymers Process for the polymerization of vinyl halide polymers

1981-06-04

1983-07-05

Henderson, C. A.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526208, 526212, C08F 220

Patent

active

043919600

ABSTRACT:
An improvement in the process for the polymerization of vinyl halide polymers comprising polymerizing at least one vinyl halide and, optionally, other olefinically-unsaturated monomers copolymerizable with vinyl halides, in an aqueous dispersion in the presence of free-radical-forming polymerization initiators, dispersants and, optionally, other additives in the presence of an inhibitor of polymer deposits and recovering said vinyl halide polymers, the improvement consisting essentially of adding to the reaction mixture from 10 to 1,000 ppm, based on the monomers, of at least one carbonyl compound having the formula: ##STR1## wherein R.sup.1 is selected from the group consisting of hydrogen and a hydrocarbon having from 1 to 9 carbon atoms selected from the group consisting of alkyl, aryl, alkaryl and aralkyl; R.sup.2 represents an oxyhydrocarbon having from 1 to 9 carbon atoms selected from the group consisting of alkoxy, aryloxy, alkaryloxy and aralkoxy, and a hydrocarbon having from 1 to 9 carbon atoms selected from the group consisting of alkyl, aryl, alkaryl and aralkyl; X is selected from the group consisting of hydroxy and R.sup.3 --CO--, wherein R.sup.3 represents a hydrocarbon having from 1 to 9 carbon atoms selected from the group consisting of alkyl, aryl, alkaryl and aralkyl; as said inhibitor of polymer deposits.

REFERENCES:
patent: 3669946 (1972-06-01), Koyanagi
patent: 3835105 (1974-09-01), Fendel

Affiliated with

Also associated with

Rating

Process for the polymerization of vinyl halide polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the polymerization of vinyl halide polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the polymerization of vinyl halide polymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1440906