Traction drive fluid
AssigneeNippon Mitsubishi Oil Corporation
InventorsNoboru Ishida, Shinichi Shirahama, Tetsuo Okawa, Shigeki Matsui
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Abstract
A traction drive fluid comprising a naphthenic compound represented by the formula 1 wherein R1 is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, R2 through R4 are each independently hydrogen or an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, and A is a naphthenic hydrocarbon group, a saturated polycyclic hydrocarbon group, a naphthenic ester group, and a naphthenic carbonate group.
Claims14
A traction drive fluid comprising a naphthenic compound represented by the formula 60
- wherein R1is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, R2 through R4 are each independently hydrogen or an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, and A is a naphthenic hydrocarbon group, a saturated polycyclic hydrocarbon group, a naphthenic ester group, and a naphthenic carbonate group.
A traction drive fluid comprising a naphthenic compound represented by the formula 61
- wherein R1 is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, R2 through R8 are each independently hydrogen or an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, and B is an alkylene group or indicates the form of bond between the two naphthenic rings selected from the group consisting of a direct bond, an ester bond, and a carbonate bond.
A traction drive fluid comprising a naphthenic compound represented by the formula 62
- wherein R1 is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, R2 through R8 are each independently hydrogen or an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms.
A traction drive fluid comprising a naphthenic compound represented by the formula 63
- wherein R1 is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, R2 through R8 are each independently hydrogen or an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, and at least one of R2, R3, R6 and R7 is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms.
A traction drive fluid comprising a naphthenic compound represented by the formula 64
- wherein R1 is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, R2 through R8 are each independently hydrogen or an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, and at least one of R2, R3, R6 and R7 is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms.
A traction drive fluid comprising a naphthenic compound represented by the formula 65
- wherein R1 is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, R2 through R8 are each independently hydrogen or an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms.
A traction drive fluid comprising a naphthenic compound represented by the formula 66
- wherein R1 is an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms, R2 through R8 are each independently hydrogen or an alkyl group, which may have a naphthene ring, having 1 to 8 carbon atoms.
A traction drive fluid comprising two or more naphthenic compounds selected from the group consisting of those of formulae (1) through (7).
Dependencies are inferred from the claim text.