Process for condensing at least one epoxide on at least one cyclic anhydride in the presence of a titanium-based catalyst
US4997910A · kind A · utility
3Cited by
5References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 7, 1989 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Dec 7, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to a process for condensing at least one epoxide on at least one cyclic anhydride of a dicarboxylic acid in the presence of a catalyst consisting of at least one titanium peroxidic complex of the peroxo type of the A form ##STR1## Said process allows to obtain a perfectly alternate polyester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.