Graft polymer dispersion in a mixture of low molecular weight po

Details Graft polymer dispersion in a mixture of low molecular weight po Graft polymer dispersion in a mixture of low molecular weight po

1985-05-24

1986-02-04

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

525 11, 525 23, 525 34, 525 42, 525 43, 525 66, 525404, 525405, C08G 1814

Patent

active

045687056

ABSTRACT:
A low viscosity, stable graft polymer dispersion is prepared by polymerizing in the presence of a free radical initiator, from about 25 to about 75 weight percent based on the total weight of the dispersion, an ethylenically 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.

REFERENCES:
patent: Re28715 (1976-02-01), Stamberger
patent: Re29014 (1976-10-01), Pizzini et al.
patent: 3931092 (1976-01-01), Ramlow et al.

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