Novel ethylene alpha-olefin copolymer substituted Mannich base l

Details Novel ethylene alpha-olefin copolymer substituted Mannich base l Novel ethylene alpha-olefin copolymer substituted Mannich base l

1988-08-01

1991-05-21

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 515A, 5253337, C10M15916

Patent

active

050172999

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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patent: 4668834 (1987-05-01), Rim et al.
patent: 4780230 (1988-10-01), Liu et al.
patent: 4787996 (1988-11-01), Horodysky et al.
patent: 4808325 (1989-02-01), Song et al.

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