Fluid composition for fluid coupling

Details Fluid composition for fluid coupling Fluid composition for fluid coupling

1994-08-01

1997-08-12

Lieberman, Paul

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

Lubricants or separants for moving solid surfaces and...

Organic compound containing silicon

252 781, 252 783, 252 785, C10M10570, C10M10574, C10M10576

Patent

active

056565771

ABSTRACT:
The invention provides a fluid composition for a fluid coupling, which is excellent in viscosity stability and torque stability, and comprises a polyorganosiloxane base oil having a viscosity of 3,000-500,000 mm.sup.2 /sec at 25.degree. C. and at least one 5-membered heterocyclic compound incorporated in a proportion of 0.01-3.0 wt. % based on the total weight of the composition, said 5-membered heterocyclic compound being selected from the group consisting of thiadiazole derivatives and thiazole derivatives, both, having at least one monovalent group represented by the formula --S.sub.x --R.sup.6 in which R.sup.6 is a saturated or unsaturated monovalent group or atom composed of at least one atom selected from a carbon atom, a hydrogen atom, an oxygen atom, a nitrogen atom and a sulfur atom, and x is a number of 1 or greater.

REFERENCES:
patent: 3609079 (1971-09-01), Devine
patent: 3977986 (1976-08-01), Conte, Jr. et al.
patent: 5151204 (1992-09-01), Struglinski
patent: 5332515 (1994-07-01), Tomizawa et al.
patent: 5366646 (1994-11-01), Sato et al.

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