Dialkyl dicarbonates as blowing agents for polymers

Details Dialkyl dicarbonates as blowing agents for polymers Dialkyl dicarbonates as blowing agents for polymers

1990-12-04

1991-07-09

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 94, 521 97, 521130, C08V 908

Patent

active

050306642

ABSTRACT:
The present invention pertains to a composition of matter and to a method of using the composition to produce foamed plastics, wherein a major, auxiliary source of blowing agent for the foam is the decomposition of dialkyl dicarbonates. The dialkyl dicarbonates can be decomposed over temperatures ranging from about 10.degree. C. to about 45.degree. C. when used in combination with particular tertiary amine decomposition catalysts.

REFERENCES:
patent: 3573232 (1971-03-01), Kloker et al.
patent: 3573233 (1971-03-01), Alfes et al.
patent: 4070310 (1978-01-01), Schneider et al.
patent: 4110273 (1978-08-01), Cohnen
patent: 4297442 (1981-10-01), Blahak

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