Stabilized filler suspensions in polyols

Details Stabilized filler suspensions in polyols Stabilized filler suspensions in polyols

1980-07-21

1981-08-04

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260 332R, 260 37N, 521123, 521164, 521167, C08G 1814

Patent

active

042823293

ABSTRACT:
The instant invention is directed to a process for the production of non-disintegrating suspensions of inorganic fillers in polyhydroxyl compounds of the type used for the production of polyurethanes, comprising reacting a suspension of an inorganic filler in a polyhydroxyl compound with from 0.1 to 2%, by weight, of a polyisocyanate, based on the weight of the suspension, at a temperature of from 30.degree. to 200.degree. C. The invention is also directed to the use of the suspension as the polyol component in the production of cellular polyurethane plastics.

REFERENCES:
patent: 3869413 (1975-03-01), Blankenship
patent: 4108791 (1978-08-01), Wasilczyk
patent: 4120834 (1978-10-01), Fatutto
patent: 4207227 (1980-06-01), Von Bonin

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