Clean gear boron-free gear additive and method for producing same
US5763372A · kind A · utility
15Cited by
14References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Dec 13, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/046
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a clean gear boron-free gear additive employing a boron-free ashless dispersant, a sulfur source and a phosphorus source. More particularly, the preferred boron-free ashless dispersant is a hydrocarbyl succinimide. This additive composition when blended with a suitable base oil meets MT-1 and MIL-PRF-2105E requirements without the need for boron. MT-1 is a requirement for a clean gear manual transmission oil. MIL-PRF-2105E is a requirement for a rear axle oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.