Multilayer detergent tablet with different hardness
US6686329B1 · kind B1 · utility
8Cited by
9References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 2001 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Feb 12, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/3418
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a detergent tablet having at least a first and a second layer, whereby the first layer is softer than the second layer, and if said tablet has more than two layers, the tablet is such that a softer layer is situated at an end of the tablet to increase the integrity and robustness of the entire tablet during production, shipping and handling while keeping substantially good dispensing properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.