Process for the production of hard vinyl chloride foams

Details Process for the production of hard vinyl chloride foams Process for the production of hard vinyl chloride foams

1975-04-29

1977-08-16

Foelak, Morton

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25R, 260 25E, 260890, 260891, C08J 910

Patent

active

040425568

ABSTRACT:
This invention relates to a process for the production of hard vinyl chloride resin foams, which comprises mixing a vinyl chloride resin foam forming composition containing or not containing a foaming agent of organic decomposition type with at least one uniformly blended mixture comprising a vinyl chloride resin composition and a foaming agent of organic decomposition type in a larger amount than in the former composition and then subjecting the resulting mixture to foaming.

REFERENCES:
patent: 3600335 (1971-08-01), Fukushima et al.
patent: 3695477 (1972-10-01), Edmonston et al.
"Foaming Agents for Polyolefins" by Sosman SPE Journal, Sept. 1962, pp. 1184-1193.

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