Bioresorbable thermoset polyester/urethane elastomers
US9309347B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2011 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Dec 19, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/912
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Bioresorbable thermoset elastomers and methods of making the same are disclosed. In certain embodiments, the thermoset elastomers include soft segments comprising branched polyesters, and hard segments including urethane and/or urea. The thermoset elastomers are made in certain embodiments by curing a branched prepolymer with a cross-linking agent. In certain embodiments, the mechanical properties of the thermoset elastomers are tailored by selecting the average molecular weight of the prepolymer, or by tuning the ratio of prepolymer to the cross-linking agent during curing, or by selecting a cross-linking agent with specific chemical characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.