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. 08, 2004
Filed:
Mar. 29, 2002
Reinhold Schwalm, Wachenheim, DE;
Wolfgang Paulus, Ober-Olm, DE;
Uwe Meisenburg, Duisburg, DE;
Erich Beck, Ladenburg, DE;
Bernd Bruchmann, Freinsheim, DE;
Wolfgang Schrof, Neuleiningen, DE;
Frank Völlinger, Edenkoben, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
UV- and heat-curable aqueous polyurethane dispersions comprise compounds attached via polyisocyanates and containing UV-polymerizable C═C double bonds, aliphatic diols incorporated by way of isocyanates and having a molecular weight of less than 500 g/mol, compounds attached via isocyanates and containing carboxylic acid or sulfonic acid groups and/or salts thereof, free hydroxyl groups, and compounds containing blocked isocyanate groups. They are suitable for coating heat-stable substrates such as metal substrates and may be used with advantage for automotive clearcoats.