Polymer-modified polyol dispersions and processes for production

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

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521127, 521164, 521167, 524724, 524728, 528 75, 528 78, 528 85, C08G 1814

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active

052927784

ABSTRACT:
A polymer-modified polyol dispersion comprises a polyaddition product dispersed in a polyol. The polyaddition product is present in an amount of from about 25 to about 70 percent by weight based on the total weight of the polyaddition product and the polyol. The dispersion has a viscosity in the range of from about 4,000 to about 50,000 mPa.s, the viscosity remaining substantially the same after production of the dispersion. A process for producing the polymer-modified polyol dispersion is also disclosed together with a process for using the dispersion to produce a polyurethane foam.

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Picken, K. "PIPA-Process for the Future", Urethanes Technology, Jun. 1984, pp. 23-24.

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