High oleic polyol esters, compositions and lubricants, functional fluids and greases containing the same
US5773391A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1997 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Nov 7, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B2075/025
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A polyol ester is described which is derived from: PA1 (A) an aliphatic or alicyclic polyol; and PA1 (B) an aliphatic monocarboxylic mixture derived from a natural vegetable oil, said acid mixture comprising at least about 72% by weight of oleic acid. The invention also relates to compositions comprising the polyol esters and at least one antioxidant, and lubricating oil compositions comprising an oil of lubricating viscosity and the polyol esters of the invention. Lubricating oil compositions comprising polyol esters of the invention, at least one antioxidant, and an oil of lubricating viscosity also are described and are particularly useful.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.