Biodegradable lubricant with tailored hydrolytic stability and improved thermal stability through alkoxylation of glycerol
US11680218B2 · kind B2 · utility
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Key dates
| Filing date | Dec 9, 2020 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Dec 9, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Described herein are methods of stabilizing the beta hydrogen of glycerol based esters by the insertion of alkoxy groups to significantly improve the thermal, oxidative, and hydrolytic stability of the ester and allow for controlling the molar density of esters bonds in the lubricants to maximize hydrolytic stability while maintaining biodegradability and further improving performance properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.