Polyurethane compositions and process for preparing polyurethane

Details Polyurethane compositions and process for preparing polyurethane Polyurethane compositions and process for preparing polyurethane

1979-09-28

1981-04-21

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521123, 521124, 521125, 521129, 528 51, 528 53, 528 55, 528 56, 528 57, C08G 1814

Patent

active

042634113

ABSTRACT:
A process of forming polyurethane compositions which emit reduced amounts of toxic smoke on burning is described. The process comprises reacting a mixture of an organic compound having two or more active hydrogen atoms, an organic polyfunctional isocyanate, a catalyst and at least one metal salt of an aliphatic or alicyclic monocarboxylic acid wherein the metal is cobalt, copper, nickel or manganese. The metal salt is added to the mixture in an amount which is sufficient to reduce the formation of toxic substances when the polyurethane is ignited.

REFERENCES:
patent: 3450648 (1969-06-01), Windemuth
patent: 3476933 (1969-11-01), Mendelsohn
patent: 3510439 (1970-05-01), Kaltenbach
patent: 3746692 (1973-07-01), Olstowski et al.
patent: 3808162 (1974-04-01), Allen et al.
patent: 3951822 (1976-04-01), Brown
patent: 4125487 (1978-11-01), Olstowski

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