Color stabilization of vinyl chloride resins with peroxides and

Details Color stabilization of vinyl chloride resins with peroxides and Color stabilization of vinyl chloride resins with peroxides and

1978-02-21

1979-04-17

Henderson, C. A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

260 458A, 526 46, 526 53, 526 56, 526 57, 5263442, 528503, C08F 624, C08F 1406

Patent

active

041502191

ABSTRACT:
The discoloration that vinyl chloride resins usually undergo when a slurry containing one of these resins is heated at a temperature above 70.degree. C. to reduce its monomer content to less than 10 ppm is minimized or prevented by carrying out the heating step in the presence of a monomer-miscible color stabilizer that comprises an epoxide and an organic peroxide.

REFERENCES:
patent: 2993034 (1961-07-01), Swern
patent: 3050783 (1962-08-01), Pirot

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