Ethylene alpha-olefin copolymer substituted Mannich base lubrica

Details Ethylene alpha-olefin copolymer substituted Mannich base lubrica Ethylene alpha-olefin copolymer substituted Mannich base lubrica

1990-02-01

1993-04-06

Howard, Jacqueline

Compositions

Electrolytes for electrical devices

252 515A, 5253337, C10M

Patent

active

052001032

ABSTRACT:
The present invention is directed to oil-soluble lubricating oil additives comprising Mannich Base condensates of an alkyl substituted hydroxy aromatic compound with formaldehyde and an amine, wherein the alkyl-moiety of the aromatic compounds is derived from at least one ethylene alpha-olefin copolymer of 300 to 20,000 number average molecular weight, wherein at least about 30% of the polymer's chains contain terminal ethenylidene unsaturation. The Mannich Base condensates of this invention are useful as dispersants.

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Bogdanov, M. V. and O. L. Glavati, "Oxidative Thermal Degradation of Alkenylsuccinic Anhydrides", Neftehimiya 13:743-748, 1973 (English Translation).

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