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. 29, 1976
Filed:
Nov. 12, 1974
Applicant:
Inventors:
Keizo Shimada, Hino, JA;
Takeo Nishikawa, Hino, JA;
Toshiaki Harada, Hachioji, JA;
Shizuo Nagahama, Hino, JA;
Assignee:
Teijin Limited, Osaka, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
260646 ;
Abstract
A process for nitrating halogenated benzene derivatives which comprises reacting in the vapor phase a halogenated benzene derivative with at least one member selected from the group consisting of nitric acid, nitrogen dioxide and nitrogen pentoxide in the presence of at least one solid inorganic oxide selected from the group consisting of silica, alumina and silica-alumina.