Patent ID: 8946313
Filing Date: 2015-02-03
Classification: C08F,C08G

Abstract:
1. A stable, low-viscosity hybrid polymer polyol comprising the free-radical polymerization product of: (A) a base polyol component comprising: (B) optionally, a preformed stabilizer; and (C) one or more ethylenically unsaturated monomers; in the presence of: (D) a free-radical polymerization initiator; and (E) optionally, a polymer control agent; wherein the solids content of the hybrid polymer polyol ranges from 20 to 70% by weight, and comprises (i) from 1% to 60% by weight of polyureas and/or polyhydrazodicarbonamides or polyisocyanate polyaddition products, and (ii) from 40% to 99% by weight of graft copolymers comprising the ethylenically unsaturated monomers, with the sum of the %'s by weight of (i) and (ii) totaling 100% by weight of the solids in the hybrid polymer polyol.