Chemical blowing agent

Details Chemical blowing agent Chemical blowing agent

1991-08-20

1992-07-21

Foelak, Morton

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

25218224, 252350, 521117, 521121, 521125, 521128, 521130, 521163, 521172, C08G 1800, C09K 300

Patent

active

051320401

ABSTRACT:
A method for the preparation of polymeric foams which comprises reacting an organic polyisocyanate with a cyclic carbonate having at least one isocyanate-reactive substitutent attached to the carbonate ring.

REFERENCES:
patent: 2628945 (1953-02-01), Wayne
patent: 3224983 (1965-12-01), D'Alello
patent: 4568702 (1986-02-01), Lascioli

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