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:
Nov. 15, 2022
Filed:
Nov. 07, 2018
Applicants:
Arianegroup Sas, Paris, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Inventors:
Etienne Savonnet, Paris, FR;
Brigitte Defoort, Saint-Medard-en-Jalles, FR;
Henri Cramail, Saint-terre, FR;
Stéphane Grelier, Parentis-en-born, FR;
Etienne Grau, Bordeaux, FR;
Assignees:
ARIANEGROUP SAS, Paris, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 59/38 (2006.01); C07D 301/28 (2006.01); C07D 303/28 (2006.01); C08G 59/24 (2006.01); C08G 59/32 (2006.01);
U.S. Cl.
CPC ...
C08G 59/38 (2013.01); C07D 301/28 (2013.01); C07D 303/28 (2013.01); C08G 59/245 (2013.01); C08G 59/3218 (2013.01);
Abstract
A multi-epoxidized biphenyl compound has the formula (I) below wherein R, R, Rand Rare as defined in the description, as well as mixtures of at least two of the compounds. These multi-epoxidized biphenyl compounds are fully suitable as main constituents of thermosetting epoxy resins, i.e. as polyepoxides precursors. They are beneficial substitutes for bisphenol A diglycidyl ether.