Grease composition for high-temperature, high-speed and high-loa

Details Grease composition for high-temperature, high-speed and high-loa Grease composition for high-temperature, high-speed and high-loa

1993-12-27

1996-03-12

Willis, Jr., Prince

Compositions

Electrolytes for electrical devices

252 52R, 252 33, 252 56R, 252 52A, 252 336, C10M13320

Patent

active

054983576

ABSTRACT:
A grease composition for high-temperature, high-speed and high-load bearings comprises (i) a lubricating base oil composed of an alkyldiphenyl ether lubricant as an essential ingredient and having a kinematic viscosity of 90-160 cSt at 40.degree. C., and (ii) 22-30 wt. %, based on the grease composition, of a diurea compound as a thickener. The diurea compound is represented by the following formula: ##STR1## wherein R.sub.2 means an aromatic hydrocarbon group having 6-15 carbon atoms, R.sub.1 and R.sub.3 denote an aromatic hydrocarbon group having 6-12 carbon atoms or a linear alkyl group having 8-20 carbon atoms, and the proportion of aromatic hydrocarbon groups in R.sub.1 and R.sub.3 is 70-95 mole %. The NLGI thickness grade of said composition is in a range of from No. 1 to No. 3.

REFERENCES:
patent: 3082170 (1963-03-01), McCarthy et al.
patent: 3920571 (1975-11-01), Crocker
patent: 3929650 (1975-10-01), King et al.
patent: 3983041 (1976-09-01), Abbott
patent: 4115284 (1978-09-01), Kinoshita et al.
patent: 4261844 (1981-04-01), Caruso
patent: 4780231 (1988-10-01), Kinoshita et al.
patent: 4787992 (1988-12-01), Waynick
patent: 4830767 (1989-05-01), Waynick
patent: 4902435 (1990-02-01), Waynick
patent: 5000862 (1991-03-01), Waynick
patent: 5084193 (1992-01-01), Waynick
patent: 5145591 (1992-09-01), Kinoshita et al.
Catalog entitled "Synthetic Lubricant Greases"-distributed in Aug., 1991 by Kyodo Yushi Co., Ltd.
Database WPIL, Week 8947, Derwent Publications Ltd., London, GB; AN 89-345397 & JP-A-1 259 097 (Kyodo Yushi KK), Oct. 1989.
Database WPIL, Week 9141, Derwent Publications Ltd., London, GB; AN 91-300349 & JP-A-3 200 898 (Kyodo Yushi KK), Sep. 1991.

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