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. 28, 1985
Filed:
Mar. 30, 1982
Applicant:
Inventors:
Akira Yoshino, Fujisawa, JP;
Isamu Iwami, Zushi, JP;
Assignee:
Asahi-Dow Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B32B / ;
U.S. Cl.
CPC ...
428403 ; 210506 ; 210679 ; 210698 ; 430339 ;
Abstract
A compound selected from some classes of coloring substances having good resistance to light and oxidation is found to have a high photosensitive activity when it is supported in an actively dispersed form on a carrier. The sensitizer obtained is useful for heterogeneous system photosensitive oxidation for various purposes, for example, treatment of harmful organisms or impurities contained in the air or water. The sensitizer has also good resistance to light and oxidation and can be used repeatedly for a long time.