Carboxylate salt or sulfonate salt, and surfactant
US10865178B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Sep 29, 2017 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Sep 29, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D1/123
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A carboxylic acid or sulfonic acid salt containing a plurality of carbonyl groups, and a surfactant represented by the following formula: R1—C(═O)—R2—C(═O)—R3-A wherein R1, R2 and R3 are as defined herein, and A is —COOX or —SO3X, wherein X is H, a metal atom, NR44, imidazolium optionally containing a substituent, pyridinium optionally containing a substituent, or phosphonium optionally containing a substituent, where R4s are each H or an organic group and are the same as or different from each other; and any two of R1, R2, and R3 optionally bind to each other to form a ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.