EP 1204465 A1 20020515 - LOW VISCOSITY ALKYL DIPHENYL OXIDE SULFONIC ACID BLENDS
Title (en)
LOW VISCOSITY ALKYL DIPHENYL OXIDE SULFONIC ACID BLENDS
Title (de)
ALKYLDIPHENYLETHERSULFONSÄUREGEMISCHE MIT EINER NIEDERIGEN VISKOSITÄT
Title (fr)
M LANGES D'ACIDE ALKYLE DIPH NYLE OXYDE SULFONIQUE FAIBLE VISCOSIT
Publication
Application
Priority
- US 0018287 W 20000630
- US 14639599 P 19990730
Abstract (en)
[origin: WO0108793A1] This invention addresses methods and compositions for providing alkyl diphenyl oxide sulfonic acid blends at useful viscosities for use in surfactants such as DOWFAX - containing surfactants. The low viscosity alkyl diphenyl oxide sulfonic acid blend is made by admixing a fatty acid having a carboxylic chain length between 1 and 12 (for example, formic acid, acetic acid, propionic acid, butanoic acid, pentanoic acid, valeric acid, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, or dodecanoic acid into an alkyl diphenyl oxide sulfonic acid reaction product to provide between 5 weight percentage and 50 weight percentage of fatty acid in the admixture.
IPC 1-7
IPC 8 full level
C07C 309/42 (2006.01); C07C 43/275 (2006.01); C07C 53/02 (2006.01); C07C 53/08 (2006.01); C07C 53/122 (2006.01); C07C 53/124 (2006.01); C07C 53/126 (2006.01); C07C 303/04 (2006.01); C09K 23/00 (2022.01)
CPC (source: EP US)
C09K 23/00 (2022.01 - EP); C09K 23/02 (2022.01 - EP US)
Citation (search report)
See references of WO 0108793A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0108793 A1 20010208; CA 2379347 A1 20010208; CN 1365299 A 20020821; EP 1204465 A1 20020515; JP 2003505520 A 20030212; MX PA02001105 A 20020820; TW 524716 B 20030321
DOCDB simple family (application)
US 0018287 W 20000630; CA 2379347 A 20000630; CN 00810905 A 20000630; EP 00946991 A 20000630; JP 2001513513 A 20000630; MX PA02001105 A 20000630; TW 89113966 A 20000713