Process for the preparation of flame resistant polyurethane comp

Details Process for the preparation of flame resistant polyurethane comp Process for the preparation of flame resistant polyurethane comp

1988-01-20

1988-09-27

Foelak, Morton

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

Synthetic resins

Processes of preparing a desired or intentional composition...

521106, 521117, 521128, 521129, 521136, 521902, 521906, 521907, C09K 2114

Patent

active

047742682

ABSTRACT:
Flame resistant foams and other compositions containing polyurethane and/or polyisocyanurate groups are prepared by reacting an organic polyisocyanate with a polyol in the presence of flame retardants, catalysts, blowing agents as well as optionally chain extenders, cross-linkers auxiliaries and additives. The flame retardents comprise a phenol or melamine formaldehyde condensate, pentaerythritol as well as ammonium phosphate and preferably in addition dicyandiamide.

REFERENCES:
patent: 4210725 (1980-07-01), Redfarn
patent: 4404297 (1983-09-01), Fishler et al.
patent: 4442157 (1984-04-01), Marx et al.
patent: 4542170 (1985-09-01), Hall et al.
patent: 4599369 (1986-07-01), Brown

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