Branched-blocked copolymer photo-crosslinker functionalized with photoreactive groups and its use for shaping degradable photo-crosslinked elastomers suitable for medical and tissue-engineering applications
US12252589B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 8, 2020 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Mar 6, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2353/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to novel degradable branched-block copolymers, comprising a star-shaped copolymer central core or a linear copolymer central core, functionalized with photoreactive groups chosen among aryl-azide, (meth)acrylate or thiol groups. The present invention also relates to the use of these degradable branched-block copolymers as photo-crosslinkers to provide degradable photo-crosslinked elastomers as biomaterials suitable for medical and tissue engineering applications. A method for preparing a degradable photo-crosslinked polymer, preferably a degradable photo-crosslinked elastomer, starting from the branched-block copolymer of the invention via a shaping process and an irradiation step is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.