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:
Mar. 10, 2020
Filed:
Dec. 07, 2015
Basf SE, Ludwigshafen, DE;
Sebastian Berger, Ann Arbor, MI (US);
Peter Thuery, Ludwigshafen, DE;
Susanne Neumann, Speyer, DE;
Christine Roesch, Mainz, DE;
Uwe Burkhardt, Ludwigshafen, DE;
Katharina Andes, Maxdorf, DE;
Stefan Wahl, Ludwigshafen, DE;
Manfred Biehler, Ilbesheim, DE;
Sebastian Roller, Mannheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The invention relates to aqueous polyurethane dispersions that are curable with UV radiation. The polyurethanes are chain-extended with aromatic, cycloaliphatic or aliphatic diamine compound and cross-linked with aliphatic triamine compound. The polyurethanes are useful dispersions for coating various substrates. The use of the invented dispersions results in high hardness, very good flexibility and good chemical resistance in both clear coats and pigmented coatings before and after UV curing combined with very good adhesion to different substrates.