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

B - Operations, Transporting

29

C

18/677

B29C 67/20 (2006.01) C08J 9/10 (2006.01) C08J 9/14 (2006.01)

Patent

CA 1225213

METHOD FOR PRODUCING A LOW DENSITY FOAMED POLYESTER RESIN Abstract A method for producing low density polyester foam includes heating the resin to a temperature in the range of from 80° to 140°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.

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