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. 12, 1977
Filed:
Jan. 27, 1975
Applicant:
Inventors:
Joseph E Milam, New Martinsville, WV (US);
Gordon A Carlson, Wadsworth, OH (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ; 252441 ; 2606 / ;
Abstract
A process for the liquid phase nuclear chlorination of benzenes which uses a novel manganese chloride catalyst in an iron-free reaction environment. The manganese chloride catalyst provides a dichlorobenzene product having a higher ratio of orthodichlorobenzene to paradichlorobenzene than is obtained with conventional commercial liquid phase chlorination catalysts.