Preparation of polymer polyols

Details Preparation of polymer polyols Preparation of polymer polyols

1985-04-24

1989-05-16

Kight, John

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524762, 521156, 521157, C08K 302, C08K 338, C08K 555

Patent

active

048310760

ABSTRACT:
A modified polyol, suitable for use as a non-aqueous dispersant in the preparation of polymer/polyols containing high levels of polymer, is provided. The modified polyol comprises the product obtained by reaction of a polyol with a coupling agent having at least two functional groups which are reactable with hydroxyl groups on the polyol. Suitable coupling agents include silicon compounds having two such functional groups, organic compounds having two or more alkoxy groups, saturated dicarboxylic acid derivatives, alkyl or aryl esters of carbonic acid, alkyl or aryl sulphonates, boric acid or its esters and titanates.

REFERENCES:
patent: Re28715 (1976-02-01), Stamberger
patent: 4588830 (1986-05-01), Fisk et al.

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