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:
Sep. 19, 2023
Filed:
Aug. 21, 2018
Covestro Deutschland Ag, Leverkusen, DE;
Christoph Irle, Cologne, DE;
Dieter Mager, Leverkusen, DE;
Qinglan Liu, Shanghai, CN;
Limin Cheng, Shanghai, CN;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
The present invention relates to a two-component system comprising a component A) comprising at least one polymeric polyol which has an OH content of ≤4.5 wt %, based on the total solids content of the polymeric polyol, and a component B) comprising at least one polyisocyanate which has a number average isocyanate group functionality of ≥4.0 to ≤10.0, based on the total solids content of the polyisocyanate, a fraction of ≤25 wt %, based on the total solids content of the polyisocyanate, of oligomers containing isocyanate groups and having a number-average molecular weight of ≤780 g/mol, and an isocyanurate group fraction of ≥5 mol % to ≤70 mol %, based on the total amount of isocyanurate groups and allophanate groups in the polyisocyanate. The invention further relates to a method for producing a coating on a substrate, to the coating obtainable by this method, and to the coated substrate.