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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.:

US 8993504 B1

PDFFull Text
Date of Patent:
Mar. 31, 2015

Filed:

Dec. 18, 2008

Oxidation catalyst for bleaching, and bleaching composition using the same

Applicants:

Takayasu Kubozono, Sumida-ku, JP;

Tomonari Suekuni, Sumida-ku, JP;

Yosuke Kono, Sumida-ku, JP;

Yukiko Iwasa, Sumida-ku, JP;

Hideyuki Kaneda, Sumida-ku, JP;

Yukihiro Dannoue, Sumida-ku, JP;

Hiroaki Hara, Sumida-ku, JP;

Yasushi Hirata, Sumida-ku, JP;

Inventors:

Takayasu Kubozono, Sumida-ku, JP;

Tomonari Suekuni, Sumida-ku, JP;

Yosuke Kono, Sumida-ku, JP;

Yukiko Iwasa, Sumida-ku, JP;

Hideyuki Kaneda, Sumida-ku, JP;

Yukihiro Dannoue, Sumida-ku, JP;

Hiroaki Hara, Sumida-ku, JP;

Yasushi Hirata, Sumida-ku, JP;

Assignee:

LION Corporation, , JP;

Attorney:

Merchant & Gould P.C.

Primary Examiner:

Gregory R Delcotto

Int. Cl.
CPC ...
C11D 1/722 (2006.01); C11D 3/26 (2006.01); C11D 3/395 (2006.01); C11D 3/33 (2006.01); D06L 3/02 (2006.01); B01J 27/24 (2006.01); C11D 3/39 (2006.01); C11D 3/20 (2006.01); C11D 3/04 (2006.01); B01J 23/72 (2006.01); C11D 1/00 (2006.01); C11D 1/72 (2006.01); D06M 16/00 (2006.01);
U.S. Cl.
CPC ...
D06L 3/021 (2013.01); B01J 27/24 (2013.01); C11D 1/722 (2013.01); C11D 3/3905 (2013.01); C11D 3/2082 (2013.01); C11D 3/391 (2013.01); C11D 3/042 (2013.01); C11D 3/33 (2013.01); C11D 3/2086 (2013.01); B01J 23/72 (2013.01); C11D 1/008 (2013.01); C11D 1/72 (2013.01); C11D 3/3932 (2013.01); D06M 16/00 (2013.01);
Abstract

The present invention provides an oxidation catalyst for bleaching containing a component (a) which is an anion caused from a chelating agent having less than or equal to coordination position 5 and/or the chelating agent, and a component (b) which is a copper and/or manganese compound; and a binder compound (c); a hydrogen peroxide-based compound (d) which dissolves in water and generates hydrogen peroxide, the bleaching composition containing a granulated product or a molded product in which at least the component (b) and the component (c) are granulated or molded together. According to the invention, an oxidation catalyst that promotes the oxidation effect of hydrogen peroxide-based compounds with a trace amount of the composition, and has excellent effects of suppressing the decomposition of hydrogen peroxide-based compounds and suppressing coloration of the catalyst itself, and a bleaching composition containing the oxidation catalyst can be utilized.

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