Continuously variable transmission fluid with extended anti-shudder durability
US9567547B2 · kind B2 · utility
6Cited by
1References
22Claims
0Family size
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Key dates
| Filing date | Jan 3, 2012 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Aug 14, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2060/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A lubricant composition comprising (a) an oil of lubricating viscosity; (b) at least two nitrogen-containing materials, comprising (i) at least one amide of the formula R3C(O)NR1R2 and (ii) at least one tertiary amine being represented by the formula R4R5NR6 where R4 and R5 are alkyl groups of at least 6 carbon atoms and R6 is a polyhydroxyl-containing alkyl group or a polyhydroxyl-containing alkoxyalkyl group; (c) a functionalized dispersant component, and (d) at least one diallyl phosphite, provides good lubricant performance for a continuously variable transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.