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:
Apr. 15, 2008
Filed:
Mar. 04, 2003
Hiroshi Danjo, Wakayama, JP;
Hiromoto Mizushima, Wakayama, JP;
Hiroshi Danjo, Wakayama, JP;
Hiromoto Mizushima, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
The invention provides a bleaching catalyst and a bleaching composition having a sufficient bleaching effect even at low temperatures and being excellent in an effect of preventing color migration in fibers with less bleach of dyes and less damage to fibers. The invention provides a cyclic amide transition metal complex (), a bleaching catalyst containing the same, and a bleaching composition containing the bleaching catalyst and a peroxy bleaching agent selected from hydrogen peroxide and a peroxide or an organic peracid generating hydrogen peroxide in an aqueous solution. wherein Rto Rrepresent H, a Chydrocarbon or perfluoroalkyl group or a halogen atom, Rrepresents a Calkylene or perfluoroalkylene group, A represents a group having 1 to 3 quaternary ammonium groups substituted with an alkyl group or linked with an alkylene group, or a heterocyclic aromatic quaternary cation group, or the like, M represents a transition metal, L represents a ligand, and Q represents a counterion.