Polyesters comprising 2,5-furandicarboxylate and saturated diol units having a high glass transition temperature
US10316140B2 · kind B2 · utility
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Key dates
| Filing date | Mar 23, 2015 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Mar 23, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/78
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polyester including at least one furandicarboxylate unit, at least one saturated, linear or branched, diol unit including from 2 to 10 carbon atoms, and at least one bicyclic diol unit, the said bicyclic diol being chosen from: isosorbide, isoidide, isomannide, 2,3:4,5-di-O-methylene-galactitol, and 2,4:3,5-di-O-methylene-D-mannitol. The glass transition temperature of the polyester is greater than or equal to 90° C. Processes for preparing this polyester are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.