Process for the preparation of graft polymer dispersions...

Details Process for the preparation of graft polymer dispersions... Process for the preparation of graft polymer dispersions...

B - Operations, Transporting

01

J

400/3004

B01J 31/02 (2006.01) C08L 57/00 (2006.01) C08L 71/02 (2006.01)

Patent

CA 1100469

PROCESS FOR THE PREPARATION OF GRAFT POLYMER DISPERSIONS EMPLOYING LIQUID FREE RADICAL CATALYSTS ABSTRACT OF THE DISCLOSURE Graft polymer dispersions are prepared by the in situ polymerization in the presence of a free radical catalyst of an ethylenically unsaturated monomer or mixture of monomers in a liquid polyol employing as the free radical catalyst a liquid unsymmetrically-substituted azo compound having a melting point less than 30°C and a ten hour half-life between 55°C and 100°C. The dispersions are low viscous liquids which may be advantageously employed in the preparation of polyurethane foams.

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