Sulfonic acid, carboxylic acid, and salts thereof
US11440875B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Mar 30, 2018 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Mar 30, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A sulfonic acid or carboxylic acid containing a carbonyl group, or a salt thereof represented by the following formula: R1—C(═O)—(CR22)n—(OR3)p—(CR42)q-L-A wherein R1, R2, R3, R4, n, p, q, A and L are as defined herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.