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Title:
HIGH VISCOSITY INDEX WIDE-TEMPERATURE FUNCTIONAL FLUID COMPOSITIONS AND METHOD FOR THEIR MAKING AND USE
Document Type and Number:
WIPO Patent Application WO2005017077
Kind Code:
A3
Abstract:
This invention relates to lubricants comprising base stocks and base oils that exhibit an unexpected combination of high viscosity index (130 or greater) and a ratio of measured-to-theoretical high-shear/low-temperature viscosity and -30°C or lower and the methods of making them. Specifically, the present invention relates to novel high viscosity index, low-viscosity lubricants usable as wide-temperature lubricants, for example hyrdraulic oils, comprising novel low-viscosity base stocks, with improved performance in low-temperature viscosity, and methods to produce them.

Inventors:
KEENEY ANGELA J
SANCHEZ EUGENIO
GALIANO-ROTH ANGELA STEFANA
Application Number:
PCT/US2003/033325
Publication Date:
June 02, 2005
Filing Date:
October 07, 2003
Export Citation:
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Assignee:
EXXONMOBIL RES & ENG CO (US)
International Classes:
C10M171/02; (IPC1-7): C10M171/02; C10G65/04; C10M105/04
Domestic Patent References:
WO2000014187A22000-03-16
WO1999041335A11999-08-19
WO2001018156A12001-03-15
WO2002064710A22002-08-22
WO2000014183A12000-03-16
Foreign References:
US6080301A2000-06-27
EP0776959A21997-06-04
US6179994B12001-01-30
US6165949A2000-12-26
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