Polymers and detergent compositions containing them
US5159041A · kind A · utility
4Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1990 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Dec 13, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F222/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Certain polymeric polycarboxylic acids and salts containing hydroxyl or hydroxymethyl groups in close proximity to carboxyl groups, especially poly(2-hydroxymethylacrylic) acid and its salts, are effective sequestrants of divalent and polyvalent metal ions and are useful as builders in detergent compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.