Ammonia-modified polyether polyols and polyurethane polymers pre

Details Ammonia-modified polyether polyols and polyurethane polymers pre Ammonia-modified polyether polyols and polyurethane polymers pre

1987-06-05

1988-03-29

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521164, 521167, 527300, 527312, 528 76, 528 77, 528 78, C08G 1814

Patent

active

047344423

ABSTRACT:
The present invention relate to a method of preparing a novel polyurethane polymer having good flame-retardent qualities from an ammonia-modified polyether polyol. The preferred method comprises treating a reducing sugar with an epoxide to form a polyether polyol which is then treated with ammonia, which reacts with the polyol chemically and becomes chemically bound thereto. The ammonia-modified polyether polyol is then reacted with an isocyanate to form a fire-resistant polyurethane.

REFERENCES:
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patent: 3629162 (1971-12-01), Richardson et al.
patent: 3658731 (1972-04-01), Richardson et al.
patent: 3717597 (1973-02-01), Hesskamp et al.
patent: 4154931 (1979-05-01), Richter et al.
patent: 4459397 (1984-07-01), Richardson et al.
patent: 4524164 (1985-06-01), Viswanathan et al.
Hustad et al., J. Dairy Science, 53 (1), pp. 18-24, 1969.

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