Method for the suspension polymerization of vinyl chloride monom

Details Method for the suspension polymerization of vinyl chloride monom Method for the suspension polymerization of vinyl chloride monom

1987-12-07

1988-12-27

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526203, 5263442, 526345, C08L 3302

Patent

active

RE0328138

ABSTRACT:
The invention provides an improvement in the suspension polymerization of vinyl chloride or a monomer mixture mainly composed of vinyl chloride in an aqueous medium containing a nonionic surface active agent and in the presence of a monomer-soluble polymerization initiator, according to which the aqueous polymerization medium is admixed with a crosslinked copolymer having carboxyl group such as a copolymer of acrylic acid and diethyleneglycol bisallyl or bismethallyl ether at a moment when the percentage of the monomer conversion is in the range from 1 to 20% so that a polyvinyl chloride resin product of high quality can be obtained having an outstandingly high bulk density and plasticizer absorptivity but still containing an extremely small number of fish eyes.

REFERENCES:
patent: 2772258 (1956-11-01), Mangelli
patent: 2886552 (1959-05-01), Heiligmann et al.
patent: 3488328 (1970-01-01), Koyanagi et al.
patent: 3907730 (1975-09-01), Jones
patent: 3966696 (1976-06-01), Kidoh et al.
patent: 4228264 (1980-10-01), Yamamoto et al.
patent: 4360651 (1982-11-01), Dinbergs
patent: 4377672 (1983-03-01), Geschonke et al.

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