Polymeric dispersants prepared from copolymers of low...

Details Polymeric dispersants prepared from copolymers of low... Polymeric dispersants prepared from copolymers of low...

C - Chemistry, Metallurgy

08

F

C08F 210/10 (2006.01) C08F 8/00 (2006.01) C08F 8/30 (2006.01) C08F 26/06 (2006.01) C08F 226/06 (2006.01) C10L 1/22 (2006.01) C10M 129/42 (2006.01) C10M 129/72 (2006.01) C10M 133/16 (2006.01) C10M 145/16 (2006.01) C10M 149/06 (2006.01)

Patent

CA 2407437

This invention is directed to a new low molecular weight copolymer (The PIB/UAR copolymer) that may be prepared by reacting a low molecular weight polyisobutene (PIB) having less than about 32 carbon atoms with an unsaturated acidic reagent in the presence of a free radical initiator. No chain transfer agent is required to prepare the low molecular weight PIB/UAR copolymer. The PIB/UAR copolymer may be useful as is, or as an intermediate for (1) polysuccinimides, (2) detergents or dispersants for tube oil or fuels, (3) pour point depressants and (4) surface sizing agents for paper. The PIB/UAR copolymer may be used by itself or as the ester, amide, imide or metal salt derivative of the PIB/UAR copolymer. The PIB/UAR copolymer may be liquid at ambient temperature.

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