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

1981-11-10

1984-07-17

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

524764, 524849, 524850, 524852, 524851, 524853, 252182, 528 75, C08G 1814, C08G 1830, C08G 1863

Patent

active

044607156

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, and an acrylyl compound such as methacryloyl chloride 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 acrylyl moiety to active hydrogen compound is less than 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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