Composition of biodegradable gear oil
US8557754B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2009 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Dec 6, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/64
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition of biodegradable gear oil that mainly contains modified nontauedible vegetable oils. Mono-esters are hydrogenated, epoxidized or aryl alkylated or mixture thereof, and C7 to C12 primary alcohol. In addition to chemically modified non-edible vegetable oils, the composition also contains an additive pack, which comprises at least one: antioxidant, an extreme pressure additive, an anti foaming agent, a pour point depressant, a corrosion inhibitor and a detergent-dispersant additive. The product of this invention has utility as industrial and automotive gear oil GL 4 grade. The compositions are significantly biodegradable, eco-friendly, reduce use of petroleum, have lower cost than synthetic oil, are miscible in mineral & synthetic fluids and safe to use due to higher flash point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.