Patent ID: 6846783

Claim:
A hydrocarbyl group substituted carboxylic composition derived from (A) an olefinically unsaturated hydrocarbon, said hydrocarbon having at least one allylic hydrogen atom, wherein said hydrocarbon comprises a) a hydrocarbon containing at least 8 carbon atoms or b) a polyolefin derived from homopolymerizing or interpolymerizing C 2-28 olefin(s) and mixtures thereof, optionally with at least one polyene and (B) an α,β-unsaturated carboxylic compound prepared by reacting (1) an active methylene compound of the formula and (2) a carbonyl compound of the general formula wherein R a is H or hydrocarbyl and R b is a member of the group consisting of H, hydrocarbyl and wherein each R′ is independently R or OR and each R is, independently, H or a hydrocarbyl group; and lower alkyl acetals, ketals, hemiacetals and hemiketals of the carbonyl compound (2).