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:
Feb. 07, 2012
Filed:
Feb. 17, 2009
Applicants:
Rolf Wehrmann, Krefeld, DE;
Helmut-werner Heuer, Krefeld, DE;
Inventors:
Rolf Wehrmann, Krefeld, DE;
Helmut-Werner Heuer, Krefeld, DE;
Assignee:
Bayer MaterialScience AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 64/00 (2006.01); C08G 63/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to polycarbonates that comprise defect structures and cyclic oligomers and have improved properties. The invention also relates to molded articles and extrudates made from said polycarbonates.