Dispersant polymethacrylate viscosity index improvers

Details Dispersant polymethacrylate viscosity index improvers Dispersant polymethacrylate viscosity index improvers

C - Chemistry, Metallurgy

08

F

C08F 220/10 (2006.01) C08F 2/00 (2006.01) C08F 220/12 (2006.01) C08F 220/26 (2006.01) C10M 145/14 (2006.01)

Patent

CA 2077835

ABSTRACT This invention relates to copolymers derived from (a) monomers selected from the group consisting of (C1-C24)alkyl methacrylates and (C1-C24)alkyl acrylates and (b) a monomer selected from the group consisting of hydroxy(C2-C6)alkyl methacrylates and hydroxy(C2-C6)alkyl acrylates wherein the number of carbon atoms in the alkyl groups averages from about 7 to about 12. These polymers are useful as additives to lubricating oils for providing viscosity index improvement, dispersancy and low temperature fluidity properties without adversely affecting fluoropolymer seals and gaskets.

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