Alkyl-substituted hydroxyaromatic compounds useful as a multifun

Details Alkyl-substituted hydroxyaromatic compounds useful as a multifun Alkyl-substituted hydroxyaromatic compounds useful as a multifun

1992-10-26

1993-12-07

Willis, Jr., Prince

Compositions

Electrolytes for electrical devices

252515A, 585 12, C10M14318

Patent

active

052681157

ABSTRACT:
An oil-soluble alkyl substituted hydroxyaromatic compound, wherein the alkyl-moiety of the aromatic compounds is derived from at least one ethylene alpha-olefin copolymer of greater or above 25,000 to about 5000,000 number average molecular weight, said copolymer containing from 30 to 80 weight percent ethylene and wherein at least about 30% of the polymer's chains contain terminal ethenylidene unsaturation. The Mannich Base condensates of this invention are useful as multifunctional viscosity index improvers for oleaginous compositions, particularly lubricating oil compositions.

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