Ethylene alpha-olefin copolymer substituted hydroxy aromatic com

Details Ethylene alpha-olefin copolymer substituted hydroxy aromatic com Ethylene alpha-olefin copolymer substituted hydroxy aromatic com

1992-10-09

1994-09-06

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

252 515A, 252 515R, 568716, 568780, 568785, 568787, 568788, 568790, 568792, C07C 3714

Patent

active

053450027

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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