Low-viscosity polymer polyols, a process for producing them,...

Details Low-viscosity polymer polyols, a process for producing them,... Low-viscosity polymer polyols, a process for producing them,...

C - Chemistry, Metallurgy

08

F

C08F 290/06 (2006.01) C08G 18/63 (2006.01)

Patent

CA 2171163

A process for producing stable, low-viscosity graft copolymer dispersions by theradical polymerisation of ethylenically unsaturated monomers in a base polyol consists of effecting the polymerisation in the presence of a polyol containing ethylenically unsaturated terminal groups and an enol ether of the following general formula A = CH-O-R where A is a divalent radical of formula Image R represents a C1-18 alkyl, C5-10 cycloalkyl or optionally a benzyl radical with a substituted nucleus, and R' represents hydrogen or a C1-8 alkyl radical, optionally in the presence of an organic solvent.

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