Foamable vinyl-chloride polymers and hard foam structures made t

Details Foamable vinyl-chloride polymers and hard foam structures made t Foamable vinyl-chloride polymers and hard foam structures made t

1976-07-28

1977-08-02

Foelak, Morton

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 25R, 260 25P, 260 25E, 260 285D, 260876R, 260876B, 260897C, C08J 910

Patent

active

040394883

ABSTRACT:
Improved foamable polymer compositions of polyvinyl chloride or copolymers containing vinyl chloride, with little or no plasticizer, are described. The foamable polymer compositions contain polyvinyl chloride, or a vinylchloride-copolymer, a chemical blowing agent, and a high molecular weight polyethylene. The compositions may also contain stabilizers, lubricants, additives to improve impact strength, etc. Rigid low density foam products are made from these compositions.

REFERENCES:
patent: 3211677 (1965-10-01), Field et al.
patent: 3442837 (1969-05-01), Brotz et al.

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