Method for polyol synthesis from triacylglyceride oils
US10189761B2 · kind B2 · utility
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18Claims
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Inventors
Key dates
| Filing date | Jun 27, 2016 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Jun 27, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for preparation of polyols from an unsaturated TAG oil that involves first epoxidizing the unsaturated TAG oil; then subjecting the epoxidized TAG oil to transesterification using a diol and/or triol in the presence of a catalyst to produce hydroxyalkyl esters of fatty acid epoxides; and finally hydroxylating the transesterification product using a diol and/or triol and a solid acid catalyst to obtain a polyol with relatively high hydroxyl value and low viscosity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.