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:
Aug. 16, 2022
Filed:
Sep. 27, 2018
Bostik SA, Colombes, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Universite DE Rennes 1, Rennes, FR;
Guillaume Michaud, Compiegne, FR;
Stephane Fouquay, Mont Saint-Aignan, FR;
Frederic Simon, Pont l'Eveque, FR;
Sophie Guillaume, Vitre, FR;
Jean-Francois Carpentier, Acigne, FR;
Cyril Chauveau, Rennes, FR;
BOSTIK SA, Colombes, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITE DE RENNES 1, Rennes, FR;
Abstract
1) Hydrocarbon-based copolymer comprising two end groups preceded by an ester function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, an exo-vinylene cyclocarbonate and a 2-oxo-1,3-dioxolen-4-yl, the main chain of which comprises units (I) and (II) in which Ris notably a methyl radical; and the number-average molecular mass Mn of which is between 400 and 100 000 g/mol. 2) Process for preparing said copolymer, comprising: (i) a step of heating a statistical bipolymer A chosen from a poly(butadiene-isoprene), a poly(butadiene-myrcene) and a poly(butadiene-farnesene); and then (ii) a step of heating the product formed, in the presence of a chain-transfer agent. 3) Use as adhesive, as a mixture with an amine compound comprising at least two amine groups.