Flame-retardant isocyanate-based foams and method of producing t

Details Flame-retardant isocyanate-based foams and method of producing t Flame-retardant isocyanate-based foams and method of producing t

1977-07-14

1980-09-02

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521156, 521157, 521902, 521906, C08G 1814, C08G 1822, C08G 1858

Patent

active

042207290

ABSTRACT:
A method of producing foams by utilizing the reactivity of isocyanate groups comprising the steps of reacting an organic polyisocyanate in the presence of a foaming agent and, optionally, at least one member selected from the group consisting of polyols, polyepoxides, polycarboxylic acids, acid anhydrides and other compounds capable of reacting with the isocyanate groups and, if necessary, a catalyst, a foam stabilizer and other additives, the improvement wherein at least one organic amine-metal complex soluble in the liquid raw material and containing a metal selected from the group consisting of copper, nickel, lead, cobalt, manganese, zinc, and chromium is added to the reaction system in an amount of 0.5 to 30 weight % based on the total weight of the raw materials used for the preparation of foams. The foams containing flame-retardant organic amine-metal complexes prepared by the aforementioned method.

REFERENCES:
patent: 3450648 (1969-06-01), Windemuth et al.
patent: 4022721 (1977-05-01), Ashida

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