Process for producing an anti-thrombogenic material by graft polymerization
US4897433A · kind A · utility
20Cited by
3References
3Claims
0Family size
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Key dates
| Filing date | Dec 3, 1987 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Dec 3, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for producing a medical material having high anti-thrombogenicity that is suitable for use in catheters and other medical devices in contact with blood flowing in circulatory organs and other tissues is disclosed. According to this process, an acrylamide or methacrylamide derivative having a tertiary amino group, or an unsaturated monomer having a hydrophihlic group and the ability to promote copolymerization, or a mixture thereof is graft polymerized onto a polyurethane elastomeric or polyolefinic high-molecular weight substrate with an ionizing radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.