Method of preparing a polyolefin-vinyl polymer-composite

Details Method of preparing a polyolefin-vinyl polymer-composite Method of preparing a polyolefin-vinyl polymer-composite

1990-09-18

1992-11-17

Seidleck, James J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525260, 525263, 525285, 525296, 525302, 525309, 525317, 525902, 428522, 428523, C08F25502, C08F26304, B32B 2730, B32B 2732

Patent

active

051644568

ABSTRACT:
Polyolefin-vinyl polymer composites are produced by impregnating polyolefin particles with vinyl monomer and free radical polymerization initiator in the ratio of about 10-200 parts by weight of vinyl monomer and 0.01-4.0 parts by weight free radical polymerization initiator per 100 parts by weight polyolefin, the impregnation being effected by slowly mixing the components at room temperature or at an elevated temperature below the decomposition temperature of the free radical polymerization initiator. After the impregnation is completed, an aqueous suspension of the mixture is formed by adding the same to water in a ratio of about 100 parts by weight of mixture per 80-1000 parts by weight of water, after which the aqueous suspension is heated to a temperature sufficiently high to polymerize the vinyl monomer.

REFERENCES:
patent: 3737483 (1973-06-01), Kosaka et al.
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patent: 3853970 (1974-12-01), Dietrich
patent: 4202845 (1980-05-01), Chang et al.
patent: 4262052 (1981-04-01), Kannan et al.
patent: 4303756 (1981-12-01), Kajimura et al.
patent: 4412938 (1983-11-01), Kakizaki et al.
"Hawley's Condensed Chemical Dictionary," Eleventh ed. New York, Van Nostrand Reinhold Co., 1987, p. 1014.

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