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:
Jun. 23, 2020
Filed:
Jun. 14, 2017
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Christian Holtgrewe, Duesseldorf, DE;
Harald Küster, Duesseldorf, DE;
Thomas Bachon, Duesseldorf, DE;
Andreas Ferencz, Duesseldorf, DE;
Olaf Lammerschop, Krefeld, DE;
Rainer Schönfeld, Duesseldorf, DE;
Claudia Mai, Duesseldorf, DE;
Henkel AG & Co. KGaA, Duesseldorf, DE;
Abstract
The present invention relates to a method for producing a cured composition, which has at least one oxazolidinone ring and at least one isocyanurate ring and is crosslinked thereby, starting from a liquid reaction mixture comprising: (a) at least one liquid, aromatic epoxy resin; (b) at least one liquid, aromatic polyisocyanate; and (c) a catalyst composition; relative to the at least one polyisocyanate, the at least one epoxy resin is used in amounts such that the molar equivalent ratio of epoxide groups to isocyanate groups is at least 0.4; and curing the reaction mixture to give a cured polymer composition comprising at least one oxazolidinone ring and at least one isocyanurate ring, and also to the cured compositions obtainable by these methods.