Sulfone polymer foam produced with aqueous blowing agent

Details Sulfone polymer foam produced with aqueous blowing agent Sulfone polymer foam produced with aqueous blowing agent

1990-10-16

1991-05-21

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 81, 521 82, 521 95, 521 97, 521134, 521138, 521139, 521189, C08J 912

Patent

active

050176226

ABSTRACT:
The present invention is directed to foams produced from sulfone polymers and mixtures of sulfone polymers with various non-sulfone polymers. These foams are produced using aqueous blowing agents comprising water as the only blowing agent, or mixtures of water with another blowing agent material.

REFERENCES:
patent: 4127547 (1978-11-01), Smarook
patent: 4179540 (1979-12-01), Smarook
patent: 4308352 (1981-12-01), Knaus

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