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:
Aug. 29, 2006
Filed:
Jul. 03, 2003
Hans-josef Laas, Bergisch Gladbach, DE;
Reinhard Halpaap, Odenthal, DE;
Frank Richter, Leverkusen, DE;
Jürgen Köcher, Langenfeld, DE;
Hans-Josef Laas, Bergisch Gladbach, DE;
Reinhard Halpaap, Odenthal, DE;
Frank Richter, Leverkusen, DE;
Jürgen Köcher, Langenfeld, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
The invention relates to novel compounds containing uretdione groups, to a process for preparing them by dimerizing aliphatic and/or cycloaliphatic isocyanates containing exclusively secondary and/or tertiary isocyanate groups and also to the use of uretdione polyisocyanates obtainable by this process from diisocyanates containing exclusively secondary and/or tertiary isocyanate groups as a starting component for polyurethane polymers, in particular as an isocyanate component in the preparation of uretdione powder coating crosslinkers.