US 10,155,842 B2 · Titanium-based catalyst for vitrimer resins of epoxy/anhydride type

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.

Claims22

Dependent claims

A composition comprising at least:

a catalyst comprising titanium bis(3-phenoxy-1,2-propane dioxide) (Ti(PPD)2),
a thermosetting resin comprising at least one epoxide function and optionally at least one free hydroxyl and/or ester function, and
a thermosetting-resin curing agent selected from carboxylic acid anhydrides,
wherein the thermosetting resin is selected from the group consisting of glycidyl esters, glycidyl ethers, glycidyl amines and glycidyl isocyanurates, comprising at least two glycidyl groups per molecule, and epoxidized olefin compounds which are linear, branched or cyclic comprising more than six members.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

15/306,000Filed 23 Apr 2015

Priority

FR 14 5367724 Apr 2014

Published

US 2017/0044307 A116 Feb 2017

Granted

18 Dec 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

C08G 59/683
Metal alcoholates, phenolates or carboxylates: phenolates
C07F 7/28
Compounds containing elements of Groups 4 or 14 of the Periodic Table: titanium compounds
C08G 59/42
Characterised by the curing agents used: polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
C08G 59/681
Characterised by the catalysts used: metal alcoholates, phenolates or carboxylates

Titanium-based catalyst for vitrimer resins of epoxy/anhydride type

Life of this patent

Titanium-based catalyst for vitrimer resins of epoxy/anhydride type

Life of this patent

Abstract

Claims22