Solid detergent compositions comprising at least one storage-stable, biodegradable and non-hygroscopic derivative of a polycarboxylic polymer
US5520842A · kind A · utility
3Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 1994 |
| Grant date | May 28, 1996 |
| Priority date | — |
| Expiry date | Jan 27, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3723
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Improvedly storage-stable, solid, particulate detergent compositions include a detergency surfactant and a builder therefor, the builder comprising at least one storage-stable, substantially non-hygroscopic, at least partially water-insoluble biodegradable polycarboxylic polymer compatible therewith, for example at least partially comprising a water-insoluble inorganic salt thereof, e.g., a calcium or magnesium salt, or at least partially comprising a water-soluble/water-insoluble mixed salt thereof, e.g., a Na/Ca mixed salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.