Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1973-11-21
1976-01-13
Anderson, Harold D.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 23XA, 260 27R, 260 296MM, 260 296MQ, 260 296MP, 260 857, 260 877, 260 863, 260 875R, C08L 2710
Patent
active
039323366
ABSTRACT:
A process for producing substantially colorless poly(vinyl bromide) homopolymer and copolymer latexes at high rates and in high yields which includes adding an aqueous solution of a reducing agent to an emulsion of vinyl bromide containing a water-soluble peroxide, or adding an aqueous solution of peroxide to an emulsion of vinyl bromide containing a water-soluble reducing agent. The latexes can be dried without significant color development and the poly(vinyl bromide) homopolymers and copolymers obtained therefrom have improved color stability.
REFERENCES:
patent: 2462422 (1949-02-01), Plambeck
patent: 3485811 (1969-12-01), Levine
patent: 3523111 (1970-08-01), Bibeau et al.
Sweeting-The Science and Technology of Polymer Films, Vol. 1, 1968, p. 64.
Hornbaker Edwin D.
Sparks Bryan
Anderson Harold D.
Ethyl Corporation
Johnson Donald L.
Ray David L.
Sieberth John F.
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