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:
Jun. 19, 2012
Filed:
Oct. 30, 2007
Applicants:
Jianqiang Qu, Ludwigshafen, DE;
Neil Gregory Pschirer, Mainz, DE;
Ruediger Sens, Ludwigshafen, DE;
Inventors:
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 471/00 (2006.01); C07D 471/04 (2006.01); D06P 1/10 (2006.01); F21V 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to processes for preparing pentarylene- and hexarylenetetracarboximides of the general formula (I) or (Ia) or mixtures thereof, to pentarylene and hexarylenetetracarboximides having a high degree of substitution, and to their use.