EP 1322737 A2 20030702 - ALKYL TOLUENE SULFONATE DETERGENTS
Title (en)
ALKYL TOLUENE SULFONATE DETERGENTS
Title (de)
WASCHMITTEL MIT ALKYLTOLUOLSULPHONAT
Title (fr)
DETERGENTS DE SULFONATE D'ALKYLTOLUENE
Publication
Application
Priority
- US 0129396 W 20010919
- US 66564200 A 20000919
Abstract (en)
[origin: WO0224845A2] This invention is directed to detergent compositions which employ sulfonated alkyltoluenes as surfactants, wherein the sulfonated alkyltoluenes have a higher content of the sulfonated 2-phenyl alkyltoluenes isomers than was previously available in sulfonated alkyltoluene surfactants of the prior art. Cleaning compositions according to the invention are more effective as cleaning agents over their counterparts of prior art which contain sulfonated alkyltoluenes having lower contents of the 2-phenyl alkyltoluene isomers, owing to an unexpected increase in tolerance of water hardness minerals normally associated with precipitation of the active detergent agent. Solid sulfonate salts of alkyltoluenes are also provided, including dry cleaning formulations containing same. The alkyltoluenes of this invention may be combined with alkylbenzene surfactants in order to provide detergent blends having increased water hardness tolerance, lower Krafft temperature, and increased cleaning performance over what was previously afforded by the prior art.
IPC 1-7
IPC 8 full level
C11D 1/22 (2006.01); C11D 17/00 (2006.01)
CPC (source: EP KR)
C11D 1/22 (2013.01 - EP KR); C11D 17/006 (2013.01 - EP); C11D 17/0073 (2013.01 - EP)
Citation (search report)
See references of WO 0224845A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0224845 A2 20020328; WO 0224845 A3 20020711; AU 9114101 A 20020402; CA 2422723 A1 20020328; CN 1622990 A 20050601; EP 1322737 A2 20030702; KR 20040002842 A 20040107; MX PA03002349 A 20031015; NO 20031227 D0 20030317; NO 20031227 L 20030508; ZA 200301979 B 20040408
DOCDB simple family (application)
US 0129396 W 20010919; AU 9114101 A 20010919; CA 2422723 A 20010919; CN 01817047 A 20010919; EP 01971233 A 20010919; KR 20037003919 A 20030318; MX PA03002349 A 20010919; NO 20031227 A 20030317; ZA 200301979 A 20030311