Method for preparing fatty acyl amido carboxylic acid based surfactants
US8822711B2 · kind B2 · utility
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21Claims
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Key dates
| Filing date | Jan 5, 2012 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Nov 4, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C231/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is provided for preparing C8-C22 acyl glycinate acid or salt thereof via reacting and heating reacting a mixture of glycine or salt thereof with a fatty acid ester in a medium selected from the group consisting of glycerol, propylene glycol and combinations thereof, and wherein the mixture has a pKa ranging from 9.5 to 13.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.