Patent ID: 7863390

Claim:
A product prepared by the process comprising reacting at least one esterified polyalkene/unsaturated acidic reagent copolymer which is the reaction product of a polyol and a copolymer of the general formula: wherein X and Xâ€² in each repeating unit of the copolymer are independently selected from the group consisting of â€”OH; â€”Oâ€”R 3 wherein R 3 is a lower alkyl of 1 to 6 carbon atoms; or taken together are â€”Oâ€” to form a succinic anhydride group; n is a whole integer from 1 to 3; R 1 is a lower alkyl of 1 to 6 carbon atoms; R 2 is a polyalkyl group having about 9 to about 200 carbon atoms; m is a whole integer of from 1 to 3; x is a number greater than 1 up to 20; Int. is at least one initiating radical; and Ter. is at least one terminating group; and wherein the copolymer has a succinic ratio of about 1 under reactive conditions with one or more of a boron compound selected from the group consisting of boron oxide, boron halide, boric acid, and esters of boric acid, wherein the reaction product is from about 40 to about 70% esterified.