Biodegradable non-toxic gear oil
US6649574B2 · kind B2 · utility
87Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Oct 8, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A biodegradable lubricating oil composition especially useful as a gear oil employs a synthetic alcohol ester basestock formed from mono- and dipentaerythritol with certain mono- and dicarboxylic acids or dicarboxylic acid anhydrides and an effective amount of a polyoxyalkylene alcohol demulsifying agent, a combination of alkylated organic acid and ashless succinimide rust inhibitors and an ashless dithiocarbamate antiwear and extreme pressure agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.