Methacrylate pour point depressants and compositions

Details Methacrylate pour point depressants and compositions Methacrylate pour point depressants and compositions

C - Chemistry, Metallurgy

08

F

253/114, 402/412

C08F 220/18 (2006.01) C10M 145/14 (2006.01) C10M 157/00 (2006.01) C10M 167/00 (2006.01)

Patent

CA 1339677

A pour point depressant for lubricating oils comprises a poly(methacrylate) polymer having the repeating unit (see fig. I) wherein R is an alkyl group having an average chain length in the polymer of 12.6 to 13.50, and n is an integer indicating the number of repeating units, the value of n being sufficient to provide a molecular weight of 10,000 to 300,000 for the polymer, the pour point depressant having the capacity to reduce the stable pour point to -35°C, while being compatible with other additives such as viscosity index improvers and detergents.

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