Biocompatible polyurethane
US5109077A · kind A · utility
41Cited by
9References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 13, 1990 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Feb 13, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/24
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A process is disclosed for the production of bio-compatible polyurethane, proceeding from cyclo aliphatic diisocyanate and macrodiol, which are reacted into a pre-adduct that is then chain lengthened with a mixture of the lower-molecular diol and a macrodiol. The so-obtained polyurethane displays high resistance in human and animal bodies and is suitable for the manufacture of catheters, blood pumps, heart valves, as well as bio-compatible lacquers and coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.