Method for the manufacture of alkoxysilyl-containing thiocarboxylic acid esters
US10919920B2 · kind B2 · utility
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28Claims
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Key dates
| Filing date | Apr 22, 2020 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Apr 22, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is provided herein a method for the manufacture of alkoxysilyl-containing thiocarboxylic acid ester which comprises reacting a thioester with a mercapto-functional alkoxysilane and/or an alkali metal salt, an alkaline earth metal salt, a trisubstituted ammonium salt of an alkoxysilyl-functional thiolate which uses economical and readily available reagents, avoids the use of phosgene or thionyl chloride reagents and produces byproducts that may be recycled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.