Stable dispersions of polymers in polyfunctional compounds havin

Details Stable dispersions of polymers in polyfunctional compounds havin Stable dispersions of polymers in polyfunctional compounds havin

1979-11-23

1983-06-28

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

524762, 528 75, C08G 1814, C08G 1863

Patent

active

043906451

ABSTRACT:
A stable copolymer dispersion is prepared by addition copolymerization of (1) an adduct of an active hydrogen compound, e.g., a polyether polyol, and an active ethylenically unsaturated isocyanate, e. g., 2-isocyanatoethyl methacrylate with (2) ethylenically unsaturated monomers(s), e.g., styrene or mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of an active hydrogen polyfunctional compound. The resulting dispersion has a controlled particle size and a viscosity such that it is suitably employed in the production of polyurethane foams.

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