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:
Oct. 19, 2021
Filed:
Mar. 31, 2020
Applicant:
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Inventors:
Ken Harada, Tokyo, JP;
Yutaro Takeshita, Tokyo, JP;
Toshiaki Shibata, Tokyo, JP;
Kan Takeshita, Tokyo, JP;
Assignee:
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C11D 7/32 (2006.01); C11D 1/34 (2006.01); C11D 1/06 (2006.01); C11D 3/00 (2006.01); C11D 3/20 (2006.01); C11D 3/30 (2006.01); C11D 3/33 (2006.01); C11D 3/39 (2006.01); C11D 11/00 (2006.01);
U.S. Cl.
CPC ...
C11D 1/345 (2013.01); C11D 1/06 (2013.01); C11D 3/0047 (2013.01); C11D 3/2082 (2013.01); C11D 3/30 (2013.01); C11D 3/33 (2013.01); C11D 3/3942 (2013.01); C11D 11/0047 (2013.01);
Abstract
A cleaning liquid containing at least one surfactant (A) selected from the group consisting of a polyoxyalkylene alkyl ether phosphoric acid, a polyoxyalkylene alkyl ether acetic acid and a polyoxyalkylene alkyl ether sulfonic acid and a chelating agent (C), which has a pH of 8 or more, and a cleaning liquid containing an oxidizing agent (B) and a chelating agent (C), which has a pH of 8 or more.