Process for condensing at least one epoxide on at least one cyclic anhydride in the presence of a catalyst consisting of at least one titanium complex
US5019643A · kind A · utility
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6References
19Claims
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Key dates
| Filing date | Mar 12, 1990 |
| Grant date | May 28, 1991 |
| Priority date | — |
| Expiry date | Mar 12, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/58
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for condensing at least one aliphatic epoxide having at least 8 atoms of carbon in its molecule on at least one cyclic anhydride of a dicarboxylic acid in the presence of a catalyst consisting of at least one titanium complex of general formula (I) Ti(OR).sub.2 (L).sub.2 in which each R group independently represents one hydrocarbon group with 1 to 10 atoms of carbon and each L group represents a ligand of the diketonic beta type or of the keto-ester beta.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.