Method for the preparation of polymer foams

Details Method for the preparation of polymer foams Method for the preparation of polymer foams

1980-08-20

1982-02-02

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 98, 521141, 521149, 525 62, C08J 902

Patent

active

043140351

ABSTRACT:
Foamable copolymers and copolymer mixtures comprising 35% to 98% by weight ethylene, 1% to 30% by weight vinyl alcohol, 1% to 30% by weight acrylic acid esters of secondary or tertiary alcohols, and 0 to 5% by weight vinyl ester are disclosed. All percentages are based upon the total weight of the copolymer or mixture. Methods of foaming such materials, foamed materials made therefrom, and methods of preparation thereof are also disclosed.

REFERENCES:
patent: 3044970 (1962-07-01), Baumeister et al.
patent: 3760047 (1973-09-01), Gaeth et al.
patent: 4119687 (1978-10-01), Resy et al.
patent: 4135026 (1979-01-01), Hoyt et al.
patent: 4151134 (1979-04-01), McClain
patent: 4155893 (1979-05-01), Fujimoto et al.
patent: 4246357 (1981-01-01), Hobes et al.

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