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. 11, 2007
Filed:
Aug. 13, 2004
Applicants:
Stephan Kohlstruk, Duelmen, DE;
Manfred Kreczinski, Herne, DE;
Rainer Elm, Marl, DE;
Hans-werner Michalczak, Herne, DE;
Inventors:
Stephan Kohlstruk, Duelmen, DE;
Manfred Kreczinski, Herne, DE;
Rainer Elm, Marl, DE;
Hans-Werner Michalczak, Herne, DE;
Assignee:
Degussa AG, Duesseldorf, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 249/00 (2006.01); C07C 251/00 (2006.01); C07C 257/00 (2006.01); C07C 263/00 (2006.01); C07C 265/00 (2006.01); C07C 267/00 (2006.01); C07C 291/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for continuous phosgene-free preparation of cycloaliphatic diisocyanates.