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:
Apr. 11, 2017
Filed:
Oct. 08, 2014
Applicant:
Chemtura Corporation, Middlebury, CT (US);
Inventors:
Mitchel Cohn, West Haven, CT (US);
Ronald Abbott, New Hartford, CT (US);
Alan B. True, New Haven, CT (US);
Huiyuan Chen, Cheshire, CT (US);
Assignee:
CHEMTURA CORPORATION, Middlebury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 209/68 (2006.01); C07C 211/55 (2006.01); C07C 211/58 (2006.01);
U.S. Cl.
CPC ...
C07C 209/68 (2013.01); C07C 211/55 (2013.01); C07C 211/58 (2013.01); Y02P 20/582 (2015.11);
Abstract
Aromatic amines, for example, diarylamines such as diphenylamine, dinaphthylamine, N-phenyl-N-naphthyl amine etc., are alkylated by passing a mixture of the amine and an olefin, though a clay catalyst in a fixed bed reactor system. The process is conveniently run as a continued process, produces an alkylated aromatic amine in excellent purity and provides efficiencies in material and energy use.