Color stabilizers for vinyl chloride resins

Details Color stabilizers for vinyl chloride resins Color stabilizers for vinyl chloride resins

1978-06-15

1980-03-18

Lovering, Richard D.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

260 458A, 528491, 525386, C09K 1506

Patent

active

041938909

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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