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:
Aug. 19, 1980
Filed:
Jun. 27, 1978
Applicant:
Inventors:
Assignee:
Yamamoto Kagaku Gosei Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; C09B / ;
U.S. Cl.
CPC ...
424 14 ; 2525 / ; 252106 ; 2525 / ; 252542 ; 424 78 ; 542444 ;
Abstract
A coloring agent which can be substantially completely decolored either through a treatment by a low concentration of chlorine type decoloring agents such as chlorine and hypochlorite or through a biological treatment usually employed in sewage treatments. The coloring agent is a certain group of polymethlyne compounds having at both the ends of the polymethyne chain pyrazolone structures. A composition comprising at least one of the coloring agents and additives in solution or solid form suitably used for coloring toilet bowl flushing water.