Controlled release using gels in a melamine foam
US7612029B2 · kind B2 · utility
29Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2006 |
| Grant date | Nov 3, 2009 |
| Priority date | — |
| Expiry date | Feb 24, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D3/222
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A substrate comprising a nonwoven layer containing an ionically crosslinked polymer can be used to control the release of active ingredients. The substrate can be a melamine foam and contain a surfactant and an alginate polymer crosslinked with calcium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.