Durable hydrophilic coating compositions
US9314544B2 · kind B2 · utility
1Cited by
17References
13Claims
0Family size
Inventors
Key dates
| Filing date | Aug 14, 2008 |
| Grant date | Apr 19, 2016 |
| Priority date | — |
| Expiry date | Apr 26, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A durable hydrophilic coating composition is provided comprising a film forming polymer, a wetting agent and from about 0.001% to about 40%, by weight of the composition, of nanoparticles. The nanoparticles are selected from the group consisting of alumina, silica and combinations thereof and have a particle size of from about 1 to about 750 nanometers. The weight ratio of the film forming polymer to the nanoparticles is from about 1:1 to about 1:30. A disposable absorbent article is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.