Detergent builders and composition containing the same
US4071476A · kind A · utility
3Cited by
7References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1976 |
| Grant date | Jan 31, 1978 |
| Priority date | — |
| Expiry date | Sep 30, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/2082
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed and claimed are biodegradable builders for use with water-soluble organic detergent compounds. The builders are alkali metal salts of ester-acids derived from polycarboxylic acid anhydrides. Also claimed are a method for making the compounds and detergent compositions containing the disclosed compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.