Polyoxypropylene-polyols and polyoxypropylene-polyoxyethylene-po

Details Polyoxypropylene-polyols and polyoxypropylene-polyoxyethylene-po Polyoxypropylene-polyols and polyoxypropylene-polyoxyethylene-po

1992-10-26

1994-08-23

Kight, III, John

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

Synthetic resins

From heterocyclic reactant containing as ring atoms oxygen,...

25218227, 528419, 528421, 528425, 568619, 568620, 568623, 568624, C07C 4310, C08G 6508

Patent

active

053409167

ABSTRACT:
The present invention relates to a process for the preparation of a hard foam containing urethane groups or urethane and isocyanurate groups by the polyisocyanate polyaddition process, by reacting

REFERENCES:
patent: 5030550 (1991-07-01), Kawabe et al.
patent: 5192813 (1993-03-01), Henn et al.
patent: 5198532 (1993-03-01), Blytas et al.
patent: 5204444 (1993-04-01), Frank et al.

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