Process for producing low VOC coalescing aids
US9908839B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jun 18, 2015 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Jun 18, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D7/63
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process comprising reacting a mono- or di-carboxylic acid and/or acid anhydride with a glycol ether in the presence of phosphoric acid to produce a glycol ether ester product having low color and low VOC content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.