Detergent tablet
US6974789B1 · kind B1 · utility
11Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2000 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Jan 20, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0086
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A detergent tablet for use in a washing machine, the tablet having one or more phases at least one of which is in the form of a compressed particulate solid comprising a) a polymeric disintegrant having a particle size distribution such that at least 90% by weight thereof has a particle size below about 0.3 mm and at least 30% by weight thereof has a particle size below about 0.2 mm; and b) a water-soluble hydrated salt having a melting point in the range from about 30° C. to about 95° C. The detergent tablets display improved dissolution, strength and long-term storage characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.