Process for production of ether carboxylates
US8304575B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2008 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Jan 16, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/367
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a process for producing an ether carboxylate which includes the steps of (1) reacting an aliphatic monohydric alcohol with an alkylene oxide in the presence of an alkali catalyst; (2) neutralizing a reaction solution obtained in the step (1) with an acid such as hydroxycarboxylic acids to obtain an ether alcohol; and (3-1) reacting the obtained ether alcohol with a monohalogenofatty acid or a salt thereof and an alkali metal hydroxide, or (3-2) subjecting the obtained ether alcohol to catalytic oxidation reaction in the presence of a catalyst. The obtained ether carboxylate has a less odor and a high quality and is therefore suitably used in the applications such as cosmetics and toiletries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.