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:
Mar. 08, 2011
Filed:
Oct. 25, 2007
Applicants:
Wolfgang Ebert, Krefeld, DE;
Rainer Mellis, Baytown, TX (US);
Alexander Meyer, Duesseldorf, DE;
Bert Ruytinx, Halen, BE;
Alexander Karbach, Krefeld, DE;
Delef Michalski-vollmer, Leverkusen, DE;
Inventors:
Wolfgang Ebert, Krefeld, DE;
Rainer Mellis, Baytown, TX (US);
Alexander Meyer, Duesseldorf, DE;
Bert Ruytinx, Halen, BE;
Alexander Karbach, Krefeld, DE;
Delef Michalski-Vollmer, Leverkusen, DE;
Assignee:
Bayer MaterialScience AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C13K 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for treating the working surfaces of equipment used in the production and processing of polycarbonate is disclosed. The thermal treatment in an oxidative atmosphere results in resin and molded articles having improved optical quality.