2,3-Carboxy alkoxy succinic acid and salts thereof
US4066687A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 1976 |
| Grant date | Jan 3, 1978 |
| Priority date | — |
| Expiry date | May 3, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/2089
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
.alpha.,.alpha.'-carboxyalkoxy succinic acids and salts thereof are described in which the carboxyalkoxy radicals contain from 2 to about 7 carbon atoms and which are useful as sequestrants and in which the carboxyalkoxy radicals contain from about 8 to about 30 carbon atoms and which are useful as lubricant additives, sizing agents for paper and textiles, and the like. A method is disclosed for sequestering polyvalent metal ions using .alpha.,.alpha.'-carboxyalkoxy succinic acid or salts thereof. A method for sequestering polyvalent metal ions is disclosed using .alpha.,.alpha.'-carboxyalkoxy succinic acid or salts thereof in combination with a surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.