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:
May. 24, 1988
Filed:
Nov. 21, 1986
Applicant:
Inventors:
William J Kruper, Jr, Sanford, MI (US);
Thomas A Chamberlin, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
540145 ;
Abstract
A process for the nitration of a tetraarylporphyrin compound such as tetraphenylporphyrin by use of a nitrating agent in a suitable solvent in the presence of an amount of sulfuric acid that is less than equimolar relative to the amount of nitrating agent.