Method for producing a low density foamed polyester resin

Details Method for producing a low density foamed polyester resin Method for producing a low density foamed polyester resin

1984-03-14

1985-06-11

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 79, 521 81, 521121, 521131, 521138, 521182, C08J 914

Patent

active

045229546

ABSTRACT:
A method for producing low density polyester foam includes heating the resin to a temperature in the range of from 80.degree. to 140.degree. F., combining the resin with a blowing agent such as a sulfonyl hydrazide, combining the resulting admixture with a catalyst, and depositing the catalyzed resin on a surface. The density of the resulting foam can be decreased by incorporating a flourinated hydrocarbon into the resin.

REFERENCES:
patent: 3362919 (1968-01-01), Rood
patent: 4327196 (1982-04-01), West

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