Titanium-based catalyst for vitrimer resins of epoxy/anhydride type
US10155842B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 23, 2015 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Apr 23, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/685
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a composition containing, besides a thermosetting resin of epoxy type and a hardener of anhydride type, at least one catalyst comprising an organometallic titanium complex. This composition enables the manufacture of vitrimer resins, that is to say resins that can be deformed in the thermoset state. It also relates to a kit for manufacturing this composition, an object obtained from this composition and a kit for manufacturing this object. Another subject of the invention relates to an organometallic titanium complex corresponding to the structure titanium bis(3-phenoxy-1,2-propane dioxide) (Ti(PPD)2), and the use thereof as vitrimer effect catalyst in systems based on epoxy resin and on hardener of anhydride type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.