Lubricating oil mannich base dispersants derived from heavy poly

Details Lubricating oil mannich base dispersants derived from heavy poly Lubricating oil mannich base dispersants derived from heavy poly

1994-10-12

1996-10-15

McAvoy, Ellen M.

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Compound of indeterminate structure, prepared by reacting an...

5253337, C01M15916

Patent

active

055651283

ABSTRACT:
An oil-soluble lubricating oil additive useful as a dispersant, comprising Mannich Base condensates of an alkyl (hydrocarbon or polymer) substituted hydroxy aromatic compound with an aldehyde and a heavy polyamine. A heavy polyamine is a mixture of polyalkylenepolyamines comprising small amounts of lower polyamine oligomers such as tetraethylene pentamine and pentahexamine but primarily oligomers with 7 or more nitrogens, 2 or more primary amines per molecule, and more extensive branching than conventional polyamine mixtures.

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