Elastomeric segmented hydrophilic polyetherurethane based lubricious coatings
US4990357A · kind A · utility
150Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | May 4, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A coating composition for an article surface includes a uniform blend of an elastomeric segmented hydrophilic polyetherurethane and a hydrophilic polymer, such as polyvinylpyrrolidone. The invention includes a method for rendering an article surface lubricious which includes coating the composition onto the article surface and contacting the coated surface with an aqueous liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.