The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2017
Filed:
Jan. 23, 2012
Ludwik Leibler, Paris, FR;
Francois Tournilhac, Paris, FR;
Damien Montarnal, Bourgoin-Jallieu, FR;
Mathieu Capelot, Serquigny, FR;
Ludwik Leibler, Paris, FR;
Francois Tournilhac, Paris, FR;
Damien Montarnal, Bourgoin-Jallieu, FR;
Mathieu Capelot, Serquigny, FR;
Centre National De La Recherche Scientifique, Paris, FR;
Arkema France, Colombes, FR;
Abstract
Thermosetting resins and thermosetting composites comprising the thermosetting resins are hot-formable. The compositions result from contacting at least one thermosetting resin precursor with at least one hardener selected from acid anhydrides in the presence of at least one transesterification catalyst. The thermosetting resin precursor includes hydroxyl functions and/or epoxy groups, and optionally ester functions, and the total molar quantity of the transesterification catalyst is between 5 and 25% of the total molar quantity of hydroxyl and epoxy contained in the thermosetting resin precursor. Methods for manufacturing articles comprising the thermosetting resins and methods for recycling the thermosetting resins are also disclosed.