Biocompatible polymers
US6040415A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1998 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Dec 15, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L33/068
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Tpresent invention provide a biocompatible polyurethane or oplyurethane urea containing, in the side chain, phosphorylcholine structure represented by the formula (1) ##STR1## wherein R.sup.1 is C.sub.1-20 alkyl, C.sub.6-12 aryl, C.sub.7-20 aralkyl or a group of the formula: EQU R.sup.4 -(A).sub.n - (wherein A is C.sub.2-10 oxyalkylene, and (A).sub.n may be constituted of one kind of oxyalkylene groups or of two or more kinds of oxyalkylene groups linked together in blocks or at random; n is an integer of 1 to 30; and R.sup.4 is C.sub.1-20 alkyl, C.sub.6-12 aryl or C.sub.7-20 aralkyl); and R.sup.2 and R.sup.3 each represent C.sub.1-20 alkyl, C.sub.6-12 aryl or C.sub.7-20 aralkyl and may be the same or different; and an antithrombogenic medical product prepared using the polyurethane or polyurethane urea.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.