Process for preparing graft polymer dispersions and polyurethane

Details Process for preparing graft polymer dispersions and polyurethane Process for preparing graft polymer dispersions and polyurethane

1985-04-10

1987-04-28

Cockeram, Herbert S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

252182, 524377, 524507, 524710, 524729, 524732, 524724, 524750, 524760, 524762, 524765, 525127, 525131, 528 75, C08G 1814, C08G 1816, C08G 1862

Patent

active

046615318

ABSTRACT:
Graft polymer dispersions in a polyol are prepared by a continuous process employing in situ free radical polymerization of an ethylenically unsaturated monomer in a polyol containing from about 0.001 to 0.09 mole of induced unsaturation per mole of polyol in the presence of an effective amount of a chain transfer agent. Products prepared by this process have uniform viscosity with resulting product uniformity. Polyurethane foams incorporating flame retardants prepared from these dispersions readily pass the California No. 117 Flame Test.

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