Oil-soluble additive compositions for lubricating oils
US6602832B2 · kind B2 · utility
3Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2002 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Jan 22, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2219/09
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An oil-soluble lubricant additive composition comprising:(a) at least one compound of formula I:  wherein R1, R2, R3 and R4 are independently hydrogen, alkyl, alkenyl, aryl or aralkyl; or R1 and R2, or R3 and R4, combine with the carbon atom to which they are attached to form an alkyl or alkenyl ring; and (b) an acid having the formula RCO2H, wherein R is C1-C25 alkyl, C2-C25 alkenyl, C2-C25 alkynyl, C5-C25 aryl or C5-C25 aralkyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.