EP 0445196 A1 19910911 - CONCENTRATED, FREE-FLOWING ANIONIC SURFACE-ACTIVE AGENTS AND PROCESS FOR THE PRODUCTION THEREOF.
Title (en)
CONCENTRATED, FREE-FLOWING ANIONIC SURFACE-ACTIVE AGENTS AND PROCESS FOR THE PRODUCTION THEREOF.
Title (de)
KONZENTRIERTE, FLIESSFÄHIGE ANIONTENSIDE UND VERFAHREN ZU IHRER HERSTELLUNG.
Title (fr)
AGENTS DE SURFACE ANIONIQUES CONCENTRES COULANTS ET PROCEDE DE PREPARATION.
Publication
Application
Priority
DE 3840092 A 19881128
Abstract (en)
[origin: EP0371369A1] Concentrated, free-flowing anionic surface-active agents with a water content of less than 1 % by wt., in particular less than 0.5 % by wt., may be prepared by the sulphonation of unsaturated C16 to C22 fatty acids with sulphur trioxide, using the sulphur trioxide in the molar proportion of 0.8-1.2:1, in particular 0.9-1.0:1, with respect to the olefinic double bonds in the fatty acids, and by subsequent neutralization of the sulphonation products with triethanolamine.
Abstract (fr)
On obtient des agents de surface anioniques concentrés coulants à teneur en eau < 1, en particulier < 0,5, % en poids en sulfonant des acides gras insaturés, comportant entre 16 et 22 atomes de carbone, avec de l'anhydre sulfurique, les rapports molaires entre anhydre sulfurique et liaisons doubles oléfiniques contenues dans les acides gras étant compris entre 0,8 et 1,2 pour 1, en particulier entre 0,9 et 1,0 pour 1, et en neutralisant les produits de sulfonation avec triéthanolamine.
IPC 1-7
IPC 8 full level
C09K 23/10 (2022.01); C07C 303/02 (2006.01); C07C 303/06 (2006.01); C07C 309/63 (2006.01); C11D 1/28 (2006.01)
CPC (source: EP)
C07C 303/02 (2013.01)
Citation (search report)
See references of WO 9006300A1
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0371369 A1 19900606; DE 3840092 A1 19900607; EP 0445196 A1 19910911; JP H04502160 A 19920416; WO 9006300 A1 19900614
DOCDB simple family (application)
EP 89121474 A 19891120; DE 3840092 A 19881128; EP 8901403 W 19891120; EP 90900102 A 19891120; JP 50199790 A 19891120