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

1983-03-07

1985-02-19

Lieberman, Allan M.

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...

524761, 525452, 525453, 525455, C08K 505, C08K 506, C08J 308, C08L 7504

Patent

active

045006750

ABSTRACT:
A stable copolymer dispersion is prepared by addition copolymerization of (1) a monomeric adduct of an active hydrogen compound, e.g., a polyether polyol or polyether monool, and an ethylenically unsaturated N-chlorosulfonyl carbamyl compound such as acryloxyethylchlorosulfonylcarbamate or an unsaturated N-chlorocarbonyl carbamyl compound with (2) ethylenically unsaturated monomer(s), e.g., styrene or a mixture thereof with acrylonitrile, while (1) and (2) are dispersed or dissolved in an excess of an active hydrogen polyfunctional compound such as a polyether polyol. The molar ratio of carbamyl moiety to active hydrogen compound is preferably less than about 0.1:1. 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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