C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/100, 403/14,
C08L 75/00 (2006.01) C08F 291/08 (2006.01) C08F 299/06 (2006.01) C08G 18/10 (2006.01) C08G 18/40 (2006.01) C08G 18/63 (2006.01) C08G 18/72 (2006.01) C08G 18/81 (2006.01)
Patent
CA 1144296
ABSTRACT A stable copolymer dispersion is prepared by addition copolymerization of (1) an adduct of an active hydrogen compound, for example, a polyether polyol, and an active ethylenically unsaturated isocyanate, for example, 2-isocyanatoethyl methacrylate with (2) ethylen- ically unsturated monomer(s), for example, 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 disper- sion has a controlled particle size and a viscosity such that it is suitably employed in the production of polyurethane foams.
365257
Harris Robert F.
Hoffmann Dwight K.
Rains Randall C.
Tefertiller Nancy B.
Smart & Biggar
The Dow Chemical Company
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