EP 0343559 B1 19930331 - USE OF 2-SUBSTITUTED ETHANE SULFONE COMPOUNDS AS GALVANIC AUXILIARY AGENTS
Title (en)
USE OF 2-SUBSTITUTED ETHANE SULFONE COMPOUNDS AS GALVANIC AUXILIARY AGENTS
Publication
Application
Priority
DE 3817722 A 19880525
Abstract (en)
[origin: EP0343559A1] Use of 2-substituted ethanesulphone compounds of the general formula I <IMAGE> and their alkali metal or ammonium salts, where A 1.) is a pyridinium radical <IMAGE> whose substituents R1 and R2 denote hydrogen or a C1-C3-lower alkyl radical, or R1 and R2, together with the pyridinium radical, form a condensed 6-membered aromatic ring, or 2.) A is a mercapto radical -S-R4 in which R4 is hydrogen or the group <IMAGE> and R3 represents a C1-C4-lower alkyl radical, as galvanic auxiliary agents, in particular brighteners and levellers.
IPC 1-7
IPC 8 full level
C25D 3/02 (2006.01); C25D 3/12 (2006.01); C25D 3/38 (2006.01)
CPC (source: EP US)
C25D 3/02 (2013.01 - EP US); C25D 3/12 (2013.01 - EP US); C25D 3/38 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0343559 A1 19891129; EP 0343559 B1 19930331; EP 0343559 B2 19960710; DE 3817722 A1 19891214; DE 58903912 D1 19930506; ES 2053865 T3 19940801; ES 2053865 T5 19961116; JP 2505281 B2 19960605; JP H0273990 A 19900313; US 5024736 A 19910618
DOCDB simple family (application)
EP 89109164 A 19890522; DE 3817722 A 19880525; DE 58903912 T 19890522; ES 89109164 T 19890522; JP 12904889 A 19890524; US 35704489 A 19890524