C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 161/00 (2006.01) C10M 133/16 (2006.01) C10M 145/06 (2006.01) C10M 145/22 (2006.01) C10M 159/12 (2006.01) C10M 159/18 (2006.01)
Patent
CA 2227353
A composition of matter suitable for use as a dispersant-viscosity improver for lubricating oil compositions comprises the reaction product of reactants comprising (a) a hydrocarbon polymer grafted with an .alpha.,.beta.-ethylenically unsaturated carboxylic acid or functional derivative thereof; and (b) at least one nitrogen and metal containing derivative of a hydrocarbon substituted polycarboxylic acid or functional derivative thereof; and optionally, (c) at least one hydroxyl-containing polyester containing at least one condensable free hydroxyl group.
Composition utile comme dispersant dans des huiles lubrifiantes ou permettant d'en améliorer la viscosité. Elle renferme le produit de réaction des composés suivants: a) un polymère hydrocarboné greffé avec un acide carboxylique, éthylénique en alpha, bêta, ou l'un de ses dérivés fonctionnels; b) au moins un dérivé azoté et métallique d'un acide polycarboxylique avec substitution, ou l'un de ses dérivés fonctionnels; c) facultativement, au moins un polyester hydroxylé renfermant au moins un hydroxyle libre condensable.
Ridout & Maybee Llp
The Lubrizol Corporation
LandOfFree
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