AnB block copolymers containing poly (vinyl pyrrolidone) units, medical devices, and methods
US6756449B2 · kind B2 · utility
13Cited by
38References
70Claims
0Family size
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Key dates
| Filing date | Sep 17, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Sep 17, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D153/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
AnB block copolymers, wherein n is at least two, that include A blocks with poly(vinyl pyrrolidone) units and B blocks with urethane groups, urea groups, imide groups, amide groups, ether groups, ester groups, or combinations thereof, as well as medical devices and methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.