Fire retardant polyurethanes prepared from hydroxy substituted a

Details Fire retardant polyurethanes prepared from hydroxy substituted a Fire retardant polyurethanes prepared from hydroxy substituted a

1978-06-28

1980-05-13

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

528 72, C08G 1814

Patent

active

042029465

ABSTRACT:
Bis(2-hydroxyalkyl) N,N-di(lower-alkyl)aminomethylphosphonates are described. These phosphorus-containing polyols can be incorporated into polyurethane foams to render the latter fire retardant. They have the advantage over closely related phosphorus-containing polyols that they are autocatalytic in the polyurethane foam forming reaction and that they can be mixed with the polyol component of the polyurethane foam forming composition to give a mixture (premix) which can be maintained in storage for prolonged periods without showing any signs of deterioration.

REFERENCES:
patent: 3314957 (1967-04-01), Friedman
patent: 3707587 (1972-12-01), Schliebs et al.

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