Graft polymer dispersion in a mixture of low molecular...

Details Graft polymer dispersion in a mixture of low molecular... Graft polymer dispersion in a mixture of low molecular...

C - Chemistry, Metallurgy

08

F

400/104, 403/14

C08F 291/08 (2006.01) C08F 283/06 (2006.01) C08F 290/06 (2006.01) C08G 18/63 (2006.01)

Patent

CA 1242542

A GRAFT POLYMER DISPERSION IN A MIXTURE OF LOW MOLECULAR WEIGHT POLYOLS AND POLYETHER POLYOLS AND THE POLYURETHANE FOAM PREPARED THEREFROM Abstract of the Disclosure A low viscosity, stable graft polymer dispersion is prepared by polymerizing in the presence of a free radical initiator, from about 25 to about 70 weight percent based on the total weight of the dispersion, an ethylen- ically unsaturated monomer or mixture of monomers, in a polyol mixture comprising (1) from about 25 to about 99 weight percent of a polyol containing from 2 to 8 hydroxyl groups and having an equivalent weight from 30 to about 200, (2) from about 1 to about 75 weight percent of a macromer containing induced unsaturation, said macromer comprising the reaction product of a polyether polyol having an equivalent weight from 100 to 10,000 with a compound having both ethylenic unsaturation and a group selected from the group consisting of a hydroxyl, carboxyl, anhydride, isocyanate and epoxy or mixtures thereof. These graft polymer dispersions are useful for preparing polyurethane products.

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