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. 04, 2008
Filed:
Aug. 23, 2004
Applicants:
Stephan Kohlstruk, Dülmen, DE;
Manfred Kreczinski, Herne, DE;
Rainer Elm, Marl, DE;
Hans-werner Michalczak, Herne, DE;
Inventors:
Stephan Kohlstruk, Dülmen, DE;
Manfred Kreczinski, Herne, DE;
Rainer Elm, Marl, DE;
Hans-Werner Michalczak, Herne, DE;
Assignee:
Degussa AG, Düsseldorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 263/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a multistage process for continuous and phosgene-free preparation of cycloaliphatic diisocyanates.