Dispersant viscosity modifiers containing aromatic amines

Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Compound of indeterminate structure – prepared by reacting a...

Reexamination Certificate

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Details

C508S231000, C508S232000, C508S243000, C508S250000, C508S269000, C508S454000, C508S457000

Reexamination Certificate

active

07960320

ABSTRACT:
Reaction of a carboxylic acid-containing polymer with certain aromatic amines results in dispersant viscosity modifiers with improved soot handling performance in heavy-duty diesel engines, compared with reaction with non-aromatic amines.

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