Energy conserving power transmission fluids
AssigneeInfineum International Limited
InventorRaymond F. Watts
Life of this patent
Estimating the term…
Abstract
An energy conserving power transmission fluid composition comprising: (a) from 1 to 49 wt. % of a polyalphaolefin base stock having a kinematic viscosity of from 40 mm2/s at 100° C. to 500 mm2/s at 100° C.; (b) from 1 to 95 wt. % of a lubricant basestock having a kinematic viscosity of from 2 mm2/s at 100° C. to 10 mm2/s at 100° C.; (c) from 1 to 49 wt. % of a polyol ester of a C5 to C30 aliphatic monocarboxylic acid and a polyol of the formula R(OH)n where n is at least 2, and (d) an effective amount of a performance additive package selected from the group consisting of automotive gear oil additive packages, manual transmission fluid additive packages and automatic transmission fluid additive packages, provided that the composition has a kinematic viscosity of at least 4 mm2/s at 100° C.
Claims8
An energy conserving power transmission fluid composition comprising:
- (a) from 1 to 49 wt. % of a polyalphaolefin base stock having a kinematic viscosity of from 40 mm2/s at 100° C. to 500 mm2/s at 100° C.;
- (b) from 1 to 95 wt. % of a lubricant basestock having a kinematic viscosity of from 2 mm2/s at 100° C. to 10 mm2/s at 100° C.;
- (c) from 1 to 49 wt. % of a polyol ester of a C5 to C30 aliphatic monocarboxylic acid and a polyol of the formula R(OH)n where n is at least 2, and
- (d) an effective amount of a performance additive package selected from the group consisting of automotive gear oil additive packages, manual transmission fluid additive packages and automatic transmission fluid additive packages,
- provided that the composition has a kinematic viscosity of at least 4 mm2/s at 100° C.
Dependencies are inferred from the claim text.