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:
Jul. 03, 2007
Filed:
Sep. 21, 2004
Applicants:
Pablo Botella Asuncion, Valencia, ES;
Joris Karel Peter Bosman, Herselt, BE;
Avelino Corma, Valencia, ES;
Christopher John Mitchell, Veltem-Beisem, BE;
Inventors:
Pablo Botella Asuncion, Valencia, ES;
Joris Karel Peter Bosman, Herselt, BE;
Avelino Corma, Valencia, ES;
Christopher John Mitchell, Veltem-Beisem, BE;
Assignee:
Huntsman International LLC, Salt Lake City, UT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C 209/78 (2006.01); C07C 263/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
Method of preparing diaminodiphenylmethane and higher homologues thereof from aniline and formaldehyde in the presence of heterogeneous solid acid catalysts selected from (a) delaminated zeolites and/or (b) metal silicate catalysts having an ordered mesoporous pore structure and/or (c) delaminated phyllosilicates.