Patent ID: 7160975

Claim:
An ethylenically unsaturated macromer which comprises the reaction product of: (a) a compound corresponding to the formula: wherein: R: represents a hydrogen atom, a branched or straight chain hydrocarbon group containing from 1 to 8 carbon atoms, or an aryl group containing from 6 to 12 carbon atoms, R″: represents a hydrogen atom, a branched or straight chain hydrocarbon group containing from 1 to 8 carbon atoms and which may be saturated or unsaturated, or an aryl group containing from 6 to 12 carbon atoms, and A: represents a chlorine atom, a bromine atom, a fluorine atom, a iodine atom, or the group OR′, wherein: R′ represents a hydrogen atom or an alkyl group having from 1 to 8 carbon atoms; with (b) a polyether polyol having an OH number of 10 to 300 and a functionality of 4 to 15, optionally, in the presence of (c) at least one catalyst.