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

1992-04-07

1993-02-16

Howard, Jacqueline

Compositions

Electrolytes for electrical devices

252 51005A, 252 51005R, 525333007, C10M15916

Patent

active

051868512

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 10,000 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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"Oxidative Thermal Degradation of Alkenylsuccinic Anhydrides", Bogdanov, M. V. and O. L. Glavati, Neftehimiya 13:743-748, 1973 (English Trans. was submitted in Great Grandparent.).

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