Solid bleaching block
US4741853A · kind A · utility
5Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1987 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Feb 11, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3942
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a solid bleaching block on the basis of an alkali metal monopersulphate for use in an in-cistern dispensing device, also comprising at least 5% by weight of an alkaline earth metal soap. By the use of these soaps, blocks are obtained which release the bleaching agent at an acceptable rate yet maintain their block structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.