C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 157/00 (2006.01) C10M 143/10 (2006.01) C10M 145/14 (2006.01) C10M 145/16 (2006.01) C10M 149/04 (2006.01) C10M 149/06 (2006.01) C10M 149/10 (2006.01) C10M 157/04 (2006.01)
Patent
CA 2442590
A composition of the following components: an oil of lubricating viscosity; a polymethacrylate viscosity modifier; an ester of a maleic acid/styrene copolymer; and optionally, an additive package that imparts to the fluid the capacity to meet bench and dynamometer tests specified by an equipment manufacturer, is suitable for use as a functional fluid such as a tractor hydraulic fluid, under a wide variety of climatic conditions.
L'invention concerne une composition composée des constituants suivants: une huile de viscosité lubrifiante; un modificateur de viscosité polyméthacrylate; un ester d'acide maléique/copolymère styrène; et éventuellement, un ensemble d'additifs conférant au fluide la capacité de satisfaire aux essais au banc et aux essais dynamométriques spécifiés par un fabricant d'équipement. Ladite composition est appropriée pour une utilisation en tant que fluide fonctionnel, notamment en tant que fluide hydraulique de tracteur, dans des conditions climatiques extrêmement variées.
Ridout & Maybee Llp
The Lubrizol Corporation
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