Compositions containing friction modifiers for continuously vari

Details Compositions containing friction modifiers for continuously vari Compositions containing friction modifiers for continuously vari

1998-09-14

2000-08-15

McAvoy, Ellen M.

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic compound containing boron

508195, 508199, 508433, 508444, 252 781, C10M14112, C10M14110

Patent

active

061036730

ABSTRACT:
A composition comprising of an oil of lubricating viscosity; a shear stable viscosity modifier; at least 0.1 percent by weight of an overbased metal salt; at least 0.1 percent by weight of at least one phosphorus compound; and 0.1 to 0.25 percent by weight of a combination of at least two friction modifiers provides an improved fluid for continuously variable transmissions. At least one of the friction modifiers is selected from the group consisting of zinc salts of fatty acids having at least 10 carbon atoms, hydrocarbyl imidazolines containing at least 12 carbon atoms in the hydrocarbyl group, and borated epoxides. The total amount of the friction modifiers is limited to those amounts which provide a metal-to-metal coefficient of friction of at least about 0.120 as measured at 110.degree. C. by ASTM-G-77.

REFERENCES:
patent: 3652410 (1972-03-01), Hollinghurst et al.
patent: 3829381 (1974-08-01), LeSuer
patent: 4031020 (1977-06-01), Sigiura et al.
patent: 4299714 (1981-11-01), Sigiura et al.
patent: 4792410 (1988-12-01), Schwind et al.
patent: 5064546 (1991-11-01), Dasai
patent: 5284591 (1994-02-01), Bayles et al.
patent: 5364994 (1994-11-01), Scharf
patent: 5387346 (1995-02-01), Hartley et al.
patent: 5449470 (1995-09-01), Cahoon et al.
patent: 5516440 (1996-05-01), Dasai et al.
patent: 5635459 (1997-06-01), Stoffa et al.
patent: 5759965 (1998-06-01), Sumiejski
patent: 5792731 (1998-08-01), Ichihashi et al.
Japanese Patent Application 2-175794, Jul. 9, 1990, as Derwent Abstract C90-108912.
PCT Application WO 97/14770, Apr. 24, 1997.
PCT Publication WO 97/04049, Feb. 6, 1997.

Affiliated with

Also associated with

Rating

Compositions containing friction modifiers for continuously vari does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compositions containing friction modifiers for continuously vari, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compositions containing friction modifiers for continuously vari will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2006756