Expandable rigid vinyl chloride polymer compositions

Details Expandable rigid vinyl chloride polymer compositions Expandable rigid vinyl chloride polymer compositions

1973-10-12

1976-08-17

Turer, Richard B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25E, 260 25HB, 260890, 260891, 260898, 260899, C08J 900

Patent

active

039753158

ABSTRACT:
Extruded expanded substantially gel and cross-link free rigid vinyl chloride polymer articles are prepared from mixtures of high molecular weight vinyl chloride polymers and copolymers of a styrene and an acrylonitrile or alkyl methacrylate, optionally with a polymer of butadiene, styrene and acrylonitrile, and a blowing agent, without the use of plasticizers, solvents or cross-linking agents. In extruding these compositions, sized pipe, bottles, boards and the like are readily prepared having fine, uniform, cell structure, hot strength, and specific gravities from about 0.38 to 0.95.

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patent: 2808387 (1957-10-01), Parks et al.
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patent: 3261785 (1966-07-01), Robinson
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patent: 3308074 (1967-03-01), Landler
patent: 3440309 (1969-04-01), Brewkink
patent: 3706679 (1972-12-01), Hopton et al.

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