Title (en)

Storage stable compositions comprising mediators, peroxide compounds and pH stabilizers, and their use in enzymatic bleaching systems

Title (de)

Mediatoren, Peroxidverbindungen und pH-Stabilisatoren enthaltende lagerstabile Formulierungen und deren Verwendung in enzymatischen Bleichsystemen

Title (fr)

Compositions stables contenant des médiateurs, des composés péroxyde et des stabilisateurs de pH ainsi que leur utilisation dans des systèmes de blanchiment enzymatique

Publication

EP 1092762 A1 20010418 (DE)

Application

EP 00121206 A 20000929

Priority

DE 19948989 A 19991012

Abstract (en)

An aqueous formulation comprises (by wt.) : (a) a mediator (0.1-20%); (b) a peroxide compound (0.1-20%); and (c) an aqueous solution of a pH stabilizer (60-99.8%), with mediator (a) being a benzene ring-condensed N-heterocyclic compound and with the formulation being free of enzymes. Mediator (a) being a benzene ring-condensed N-heterocyclic compound of formula (I). M = H, alkali (especially Na or K), alkaline earth (especially Ca or Mg), ammonium or 1-4C alkyl- or alkanol-ammonium; R<1> - R<4> = H, halogen (especially F, Cl or Br), OH, formyl, amino, NO2, 1-12C alkyl, 1-6C alkoxy, carbonyl-1-6C alkyl, phenyl, benzyl, phenyloxy, -COOR<5>, -SO2OR<5>, -SO2NH2, -NHSO2, -CONH2, -PO(OR<5>)2, -PO2(OR<5>) or -OPO(OR<5>)2; X = -N=N-, (-N=CR<6>-)m, (-CR<6>=N-)m or (-CR<7>=CR<8>-)m; m = 1 or 2; R<5> = H, alkali (especially Na or K), alkaline earth (especially Ca or Mg), ammonium or 1-4C alkyl- or alkanol-ammonium, 1-18 (especially 3-10)C alkyl or -(CH2CH2O-)x; x = 1-25 (especially 3-15); and R<6> - R<8> = as for R<1> - R<4>

Abstract (de)

Bereitgestellt werden neue lagerstabile Formulierungen, die mindestens eine Peroxidverbindung, mindestens einen speziellen Mediator und mindestens einen pH-Stabilisator enthalten. Bevorzugt werden als Mediatoren Hydroxybenzotriazol-Derivate eingesetzt. Derartige lagerstabile Formulierungen können als Komponente in enzymatischen 2-Komponenten-Bleichsystemen eingesetzt werden, die insbesondere zur Entfernung überschüssigen Farbstoffs von gefärbten textilen Materialien nach einer Färbung dienen.

IPC 1-7

C11D 3/28; C11D 3/39; C11D 3/386; D21C 9/10; D21C 9/16; D06P 5/02; D06P 5/13; D06P 5/15; D06L 3/02

IPC 8 full level

C11D 3/28 (2006.01); C11D 3/386 (2006.01); C11D 3/39 (2006.01); D06L 3/02 (2006.01); D06P 5/02 (2006.01); D06P 5/13 (2006.01); D06P 5/15 (2006.01); D21C 5/00 (2006.01); D21C 9/10 (2006.01); D21C 9/16 (2006.01); D06P 1/642 (2006.01)

CPC (source: EP US)

C11D 3/28 (2013.01 - EP US); C11D 3/38654 (2013.01 - EP US); C11D 3/3947 (2013.01 - EP US); D06P 5/02 (2013.01 - EP US); D06P 5/132 (2013.01 - EP US); D06P 5/137 (2013.01 - EP US); D06P 5/153 (2013.01 - EP US); D06P 5/158 (2013.01 - EP US); D21C 5/005 (2013.01 - EP US); D21C 9/1036 (2013.01 - EP US); D21C 9/163 (2013.01 - EP US); D06P 1/6426 (2013.01 - EP US)

Citation (search report)

• [A] US 5376387 A 19941227 - MONTICELLO MICHAEL V [US]
• [A] EP 0882814 A1 19981209 - CONSORTIUM ELEKTROCHEM IND [DE]
• [A] DE 19723912 A1 19981210 - CONSORTIUM ELEKTROCHEM IND [DE]
• [A] DATABASE CHEMABS [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; KULYS, J.: "Exploring and modelling mediator-assisted peroxidase catalysis", XP002157750, retrieved from STN Database accession no. 132:75263 CA & BIOLOGIJA (1998), (4), 32-36

Designated contracting state (EPC)

DE DK FR GB IT

DOCDB simple family (publication)

EP 1092762 A1 20010418; EP 1092762 B1 20041208; DE 19948989 A1 20010523; DE 50008895 D1 20050113; US 6380142 B1 20020430

DOCDB simple family (application)

EP 00121206 A 20000929; DE 19948989 A 19991012; DE 50008895 T 20000929; US 67859900 A 20001004