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:
Apr. 12, 2011
Filed:
Feb. 23, 2009
Applicants:
Marc Leimenstoll, Hilden, DE;
Burkhard Köhler, Zierenberg, DE;
Christos Karafilidis, Düsseldorf, DE;
Matthias Wintermantel, Bergisch Gladbach, DE;
Inventors:
Marc Leimenstoll, Hilden, DE;
Burkhard Köhler, Zierenberg, DE;
Christos Karafilidis, Düsseldorf, DE;
Matthias Wintermantel, Bergisch Gladbach, DE;
Assignee:
Bayer MaterialScience AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 261/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to novel prepolymers which are accessible from the formamides of oligomeric di- or polyamines (formamide-terminated oligomers) and di- or polyisocyanates.