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:
Jan. 01, 1980
Filed:
May. 10, 1978
Applicant:
Inventors:
Ryoichi Murakami, Kyoto, JP;
Yukio Anegawa, Sakai, JP;
Minoru Ishida, Sakai, JP;
Keizi Masada, Toyonaka, JP;
Assignee:
Nippon Paint Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
148 / ; 148-617 ;
Abstract
A process for iron phosphating the surface of an iron substrate which comprises treating said surface with a phosphating solution comprising at least one of alkali metal and ammonium phosphates and at least one of aromatic nitro compounds as a phosphating accelerator in an aqueous medium and having a pH of about 3 to 6.5 in a closed system phosphating installation.