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. 23, 2010
Filed:
Mar. 01, 2007
Thilo Hahn, Kirchheimbolanden, DE;
Frank Haese, Dietzenbach, DE;
Ulrich Köhler, Mannheim, DE;
Ekkehard Schwab, Neustadt, DE;
Johann-peter Melder, Böhl-Iggelheim, DE;
Jan Eberhardt, Mannheim, DE;
Thilo Hahn, Kirchheimbolanden, DE;
Frank Haese, Dietzenbach, DE;
Ulrich Köhler, Mannheim, DE;
Ekkehard Schwab, Neustadt, DE;
Johann-Peter Melder, Böhl-Iggelheim, DE;
Jan Eberhardt, Mannheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for the preparation of benzophenonimine (BPI) of the general formula I where Rand Rare C- to C-alkoxy, C- to C-alkylamine and C- to C-dialkylamine and m and n are integers from 0 to 5 and Rand R, independently of one another, may be identical or different, by reacting benzophenone (BP) of the general formula II where R1, R2, m and n have the abovementioned meanings, in ammonia and in the presence of titanium dioxide, the titanium dioxide being present substantially in the anatase modification.