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:
Dec. 19, 2023
Filed:
Dec. 19, 2018
Bostik SA, Colombes, FR;
Universite Claude Bernard Lyon 1, Villeurbanne, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Cpe Lyon Formation Continue ET Recherche-cpe Lyon Fcr, Villeurbanne, FR;
Federico Sanz, Venette, FR;
Guillaume Michaud, Venette, FR;
Frédéric Simon, Venette, FR;
Jean Raynaud, Villeurbanne, FR;
Vincent Monteil, Lyons, FR;
Lionel Bosco, Chateauneuf-le-Rouge, FR;
BOSTIK SA, Colombes, FR;
UNIVERSITE CLAUDE BERNARD LYON 1, Villeurbanne, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
CPE LYON FORMATION CONTINUE ET RECHERCHE—CPE LYON FCR, Villeurbanne, FR;
Abstract
The present invention relates to a method for producing a composition comprising at least one polyurethane with NCO end groups, and at least one catalyst B selected from among tertiary amines, said method comprising the following steps: a) production of a polyurethane with NCO end groups, comprising a step of polyaddition of a polyol composition and a polyisocyanate composition, in the presence of at least one catalyst A selected from the group consisting of—organo-metallic catalysts excluding tin-based catalysts, —tertiary amines, and—mixtures of same; and b) the addition of at least one catalyst B, selected from among tertiary amines, to the polyurethane with NCO end groups obtained in step a).