Production of vinyl chloride polymers

Details Production of vinyl chloride polymers Production of vinyl chloride polymers

1982-07-12

1984-05-01

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5263442, C08F 224

Patent

active

044462875

ABSTRACT:
Production of vinyl chloride polymer of high porosity by polymerizing vinyl chloride in aqueous suspension and injecting an effective surfactant at a monomer to polymer conversion within the range 15 to 65%. An effective surfactant is found to be one which lowers the interfacial tension between 1,2-dichloroethylene and water to .ltoreq.8 dynes cm.sup.-1.

REFERENCES:
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patent: 3706705 (1972-12-01), Koyanagi et al
patent: 3716507 (1973-02-01), Glomski et al.
patent: 4143224 (1979-03-01), Klippert et al.
patent: 4283516 (1981-08-01), Peeples
patent: 4324878 (1982-04-01), Biaggi et al.
patent: 4330653 (1982-05-01), Klippert et al.
Zhurnal Prikhadnoi, Khimii, vol. 50, No. 2, pp. 373-377, Feb., 1977.

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