EP 0723577 A1 19960731 - DETERGENT COMPOSITIONS CONTAINING SILVER ANTI-TARNISHING AGENTS
Title (en)
DETERGENT COMPOSITIONS CONTAINING SILVER ANTI-TARNISHING AGENTS
Title (de)
WASCHMITTELZUSAMMENSETZUNGEN ENTHALTEND MITTEL ZUR VERHINDERUNG DES ANLAUFENS VON SILBER
Title (fr)
COMPOSITIONS DETERGENTES CONTENANT DES AGENTS EMPECHANT LE TERNISSEMENT DE L'ARGENT
Publication
Application
Priority
- EP 9403322 W 19941007
- US 13662993 A 19931014
- US 13678793 A 19931014
- US 13679193 A 19931014
- US 30145994 A 19940907
- US 30228494 A 19940908
Abstract (en)
[origin: WO9510588A1] A bleaching detergent composition which prevents or inhibits tarnishing of silver comprises: (a) a bleaching agent selected from a peroxygen or peroxygen-yielding compound, a hypohalite or hypohalite-yielding compound, or a salt thereof, or mixtures thereof; (b) an anti-tarnishing agent selected from: (i) a purine class compound; (ii) cyanuric acid or isocyanuric acid or a salt thereof; (iii) a 1,3-N azole compound; (iv) a mixture of any of the above compounds (i), (ii) or (iii); (c) optionally a builder; (d) optionally, a surfactant; wherein the composition exhibits a pH value in the range from 7 to 13, and wherein the anti-tarnishing agent has a pKa value below the pH value of an aqueous solution of the composition.
IPC 1-7
IPC 8 full level
C11D 3/00 (2006.01); C11D 3/28 (2006.01); C11D 3/39 (2006.01); C11D 3/395 (2006.01)
CPC (source: EP)
C11D 3/0073 (2013.01); C11D 3/28 (2013.01); C11D 3/3902 (2013.01); C11D 3/3947 (2013.01); C11D 3/3951 (2013.01); C11D 3/3956 (2013.01); C23F 11/149 (2013.01)
Citation (search report)
See references of WO 9510588A1
Designated contracting state (EPC)
CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9510588 A1 19950420; AU 7812494 A 19950504; BR 9407809 A 19970506; CA 2171312 A1 19950420; DE 69413051 D1 19981008; DE 69413051 T2 19990121; EP 0723577 A1 19960731; EP 0723577 B1 19980902; ES 2122336 T3 19981216
DOCDB simple family (application)
EP 9403322 W 19941007; AU 7812494 A 19941007; BR 9407809 A 19941007; CA 2171312 A 19941007; DE 69413051 T 19941007; EP 94928878 A 19941007; ES 94928878 T 19941007