Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic compound containing boron
Patent
1995-03-02
1996-07-30
Willis, Jr., Prince
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic compound containing boron
525 64, 525285, 508454, C10M14500, C10M14900
Patent
active
055408516
ABSTRACT:
Dispersant-viscosity improvers for lubricating oil compositions comprise the reaction product of reactants comprising
(a) an oil soluble ethylene-alpha olefin copolymer wherein the alpha olefin is selected from the group consisting of C.sub.3-28 alpha olefins, said polymer having a number average molecular weight ranging from about 30,000 to about 300,000 grafted with an ethylenically unsaturated carboxylic acid or functional derivative thereof;
(b-1) at least one polyester containing at least one condensable hydroxyl group; and
(b-2) at least one polyamine having at least one condensable primary or secondary amino group, and optionally further comprising (c) at least one hydrocarbyl substituted carboxylic acid or anhydride.
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Cordek James L.
Fischer Joseph P.
Hunter Frederick D.
The Lubrizol Corporation
Toomer Cephia D.
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