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. 19, 2006
Filed:
Nov. 17, 2004
Frank Richter, Leverkusen, DE;
Reinhard Halpaap, Odenthal, DE;
Hans-josef Laas, Gladbach, DE;
Andreas Hecking, Langenfeld, DE;
Frank Richter, Leverkusen, DE;
Reinhard Halpaap, Odenthal, DE;
Hans-Josef Laas, Gladbach, DE;
Andreas Hecking, Langenfeld, DE;
Bayer MaterialScience AG, Leverkusen, DE;
Abstract
A method of dimerizing isocyanates including reacting the isocyanates in the presence of phosphines containing at least one directly phosphorus-attached bicyclic, cycloaliphatic radical. The polyisocyanate compositions obtained as described above can be used in mouldings, coating materials, adhesives, sealants or adjuvants that further include the polyisocyanate compositions and one or more materials selected from antioxidants, light stabilizers, pigments, fillers, additives, levelling assistance, defoamers and matting agents. The coating materials, adhesives or sealants can be used to coat substrates.