Cleaning implement with erodible foam substrate and controlled release system of active agent
US8283305B2 · kind B2 · utility
2Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2007 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Jan 22, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249986
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A cleaning implement comprises an erodible foam substrate, such as a melamine foam substrate and a controlled release system comprising an active agent. The controlled release system comprises a component selected from the group consisting of a polymer matrix, a microcapsule, a particulate porous carrier, a complexing agent, a semi-permeable film and a combination thereof and the active agent is selected from the group consisting of a surfactant, a bleaching agent, a limescale reducing agent, a biocide, a solvent and a mixture thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.