Multi-layer detergent tablet
US6462007B1 · kind B1 · utility
22Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2000 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Jul 26, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0078
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A multi-layered detergent tablet comprising: a) a core having a first detergent active agent; b) a first encapsulating layer surrounding said core, having a second detergent active agent; c) a second encapsulating layer surrounding said first encapsulating layer, having a third detergent active agent and a disruption system; wherein disruption of said second encapsulating layer is such that at least 25% of said third detergent active agent is released prior to release of said second detergent active agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.