EP 0174610 B1 19890419 - USE OF ETHER SULFONATES AS LOW-FOAMING WETTING AGENTS IN AQUEOUS, ACID AND ALCALINE TECHNICAL TREATING COMPOSITIONS
Title (en)
USE OF ETHER SULFONATES AS LOW-FOAMING WETTING AGENTS IN AQUEOUS, ACID AND ALCALINE TECHNICAL TREATING COMPOSITIONS
Publication
Application
Priority
DE 3433593 A 19840913
Abstract (en)
[origin: US4612142A] Ether sulfonates corresponding to the following general formula R1- O(CnH2nO)x-R2-SO3 M (I) wherein R1 is a C1-6 alkyl, n is an integer of 2-4, x is an integer from 0-30, R2 is a C6-22 linear alkenylene, hydroxyalkylene or hydroxyalkenylene group, and M is hydrogen or an alkali metal cation, which can be obtained by sulfonation of olefinically unsaturated fatty alkyl lower alkyl ethers or fatty alkyl (polyoxyalkyl) lower alkyl ethers with sulfur trioxide and hydrolysis of the sultones formed, are particularly suitable for use as low-foam wetting agents in aqueous acidic or alkaline commercial-grade treatment preparations.
IPC 1-7
IPC 8 full level
C09K 23/00 (2022.01); C09K 23/02 (2022.01); C11D 1/12 (2006.01); C23G 1/14 (2006.01); D06L 3/02 (2006.01); D06L 4/10 (2017.01)
CPC (source: EP US)
C11D 1/12 (2013.01 - EP US); C11D 3/0026 (2013.01 - EP US); C23G 1/14 (2013.01 - EP US); D06L 4/10 (2016.12 - EP US); Y10S 516/03 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0174610 A2 19860319; EP 0174610 A3 19870527; EP 0174610 B1 19890419; AT E42331 T1 19890515; DE 3433593 A1 19860320; DE 3569569 D1 19890524; US 4612142 A 19860916
DOCDB simple family (application)
EP 85111229 A 19850905; AT 85111229 T 19850905; DE 3433593 A 19840913; DE 3569569 T 19850905; US 77282785 A 19850905