Thermosensitive biodegradable copolymer
US7179867B2 · kind B2 · utility
12Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | May 3, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2261/126
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A thermo-sensitve copolymer of following formula;is disclosed; wherein R1 is hydrogen, or —C(═O)—R2; R2 is C7-30 alkyl substituted or unsubstituted with functional groups; R3 is hydrogen, or C1-6 alkyl; and x, y or z individually is an integer greater than 0. The thermo-sensitive copolymers disclosed here are easy to be implanted into a human body through injection. The biodegradability is greatly improved and the cytotoxicity of the copolymers is low.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.