Copolymers having polyisobutylene and biodegradable polymer segments
US9631042B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 12, 2014 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Nov 12, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2261/126
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention pertains to copolymers having one or more polyisobutylene segments and one or more biodegradable polymer segments, to methods of making such copolymers, to medical articles that contain such copolymers, and to methods of making such medical articles. According to certain aspects of the invention, copolymers are provided, which comprise a plurality of polyisobutylene segments and a plurality of biodegradable polymer segments. According to certain aspects of the invention, copolymers are provided, which comprise urethane linkages, urea linkages, amide linkages, ester linkages, anhydride linkages, carbonate linkages, linkages commonly described as “click” chemistry linkages, and combinations of two or more types of such linkages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.