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. 19, 1983
Filed:
Apr. 03, 1981
Applicant:
Inventors:
Ryuzo Nishiyama, Takatsuki, JP;
Kanichi Fujikawa, Moriyama, JP;
Isao Yokomichi, Moriyama, JP;
Itaru Shigehara, Moriyama, JP;
Mikio Miyaji, Shiga, JP;
Assignee:
Ishihara Sangyo Kaisha Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564407 ; 564305 ; 564442 ;
Abstract
An aminobenzene is produced by reacting a chlorobenzene with ammonia in the presence of a copper type catalyst, namely by reacting ammonia with 3,5-diaminochlorobenzene to produce 1,3,5-triaminobenzene at a temperature of 150.degree. to 250.degree. C. at a molar ratio of ammonia of 2 to 10 to 3,5-diaminochlorobenzene in the presence of a copper compound catalyst.