Polyurethane sponge having rapid iodine release
US5302392A · kind A · utility
31Cited by
10References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1990 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Aug 20, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N59/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A polyurethane composition has particles of solid polyvinylpyrrolidone-iodine complex evenly distributed throughout the polyurethane matrix so that the complex does not associate with the polyurethane to any appreciable extent. In one embodiment of the composition, the polyurethane is thermoplastic for coating or molding applications. In another embodiment, the composition is a polyurethane foam particularly useful as a sponge for scrubbing which provides almost instantaneous release of the complex. The sponge may be provided in a package which includes other items useful for scrubbing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.