Synthesis of triethylene glycol bis(2-ethylhexanoate)
US10829429B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Nov 13, 2018 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Nov 13, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/708
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the transesterification of methyl-2-ethylhexanoate with triethylene glycol to produce triethylene glycol di-2-ethylhexanoate is provided. In the process, methyl-2-ethylhexanoate is combined with triethylene glycol to form a first mixture. The first mixture is heated in the presence of a catalyst to form a second mixture comprising methanol and triethylene glycol di-2-ethylhexanoate. Methanol is separated from the second mixture to yield triethylene glycol di-2-ethylhexanoate. Na2CO3, Cs2CO3, K2CO3, Rb2CO3, sodium methoxide or titanium isopropoxide are suitable catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.