Polyhydroxyalkyl polycarbonamides for the production of flame-re

Details Polyhydroxyalkyl polycarbonamides for the production of flame-re Polyhydroxyalkyl polycarbonamides for the production of flame-re

1984-08-29

1985-09-10

Cockeram, Herbert S.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

521 51, 521128, 521167, 521118, 528 78, 528 58, C08G 1814, B32B 2900

Patent

active

045406260

ABSTRACT:
The invention relates to the use of poly-N,N-di-(hydroxyalkyl)-polycarbonamides of aliphatic or cycloaliphatic polycarboxylic acids as reactive flame-retardants for polyurethane foams, and in particular polyurethane integral skin foams and polyurethane rigid foams which are produced with the aid of organic blowing agents. These reactive flame-retardants are added in quantities of from 11.5 to 50 parts by weight, and most preferably from 12 to 25 parts by weight, based on 100 parts of the relatively high molecular weight polyol used for the preparation of the foam. The integral skin or rigid foams produced are flame-resistant and because of their reduced flammability are capable of passing various regulation fire tests, and in particular those testing foams for use in vehicles for transport.

REFERENCES:
patent: 3697458 (1972-10-01), Burba et al.
patent: 3699078 (1972-10-01), Castro
patent: 3734871 (1973-05-01), Burba et al.
patent: 4100116 (1978-07-01), Mazanek et al.
patent: 4246364 (1981-01-01), Koehler et al.
patent: 4493909 (1985-01-01), Haas et al.

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