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:
Dec. 10, 2013
Filed:
Jan. 27, 2011
Jan Weikard, Ordenthal-Erberich, DE;
Christophe Detrembleur, Liege, BE;
Dorota Greszta-franz, Erkrath, DE;
Frank Richter, Leverkusen, DE;
Wolfgang Fischer, Meerbusch, DE;
Jörg Schmitz, Köln, DE;
Holger Mundstock, Wermelskirchen, DE;
Jan Weikard, Ordenthal-Erberich, DE;
Christophe Detrembleur, Liege, BE;
Dorota Greszta-Franz, Erkrath, DE;
Frank Richter, Leverkusen, DE;
Wolfgang Fischer, Meerbusch, DE;
Jörg Schmitz, Köln, DE;
Holger Mundstock, Wermelskirchen, DE;
Bayer MaterialScience AG, Leverkusen, DE;
Abstract
The present invention relates to a process for preparing radiation-curing binders containing allophanate groups by reacting, at temperatures of ≦130° C., A) one or more compounds containing uretdione groups with B) one or more OH-functional compounds which contain groups which react, with polymerization, with ethylenically unsaturated compounds on exposure to actinic radiation (radiation-curing groups), C) optionally NCO-reactive compounds other than B), in the presence of D) a catalyst containing at least one zinc compound, to form allophanate groups by opening the uretdione ring. The present invention also relates to the binders obtained by the process of the invention and to coating compositions containing these binders.