WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1999039196) DETERMINATION OF NONIONIC SURFACTANTS IN AQUEOUS ALKALINE SOLUTIONS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1999/039196    International Application No.:    PCT/EP1999/000200
Publication Date: 05.08.1999 International Filing Date: 15.01.1999
Chapter 2 Demand Filed:    19.08.1999    
IPC:
G01N 31/22 (2006.01)
Applicants: CLARIANT INTERNATIONAL LTD. [CH/CH]; Rothausstrasse 61, CH-4132 Muttenz 1 (CH)
Inventors: HOLT, Rodica; (US).
OBERLANDER, Joseph, E.; (US).
GONZALEZ, Eleazar, B.; (US).
RANQUE, Pilarcita, L.; (US).
CALINDAS, Maria, F., Y.; (US)
Agent: HÜTTER, Klaus; Clariant GmbH, Patente, Marken, Lizenzen, Am Unisys-Park 1, D-65843 Sulzbach (DE)
Priority Data:
09/014,387 28.01.1998 US
Title (EN) DETERMINATION OF NONIONIC SURFACTANTS IN AQUEOUS ALKALINE SOLUTIONS
(FR) EVALUATION DE LA TENEUR D'UNE SOLUTION ALCALINE AQUEUSE EN TENSIOACTIFS NON IONIQUES
Abstract: front page image
(EN)The present invention is a process for precisely measuring the concentration of a nonionic surfactant in an aqueous alkaline solution. The process comprises extracting the surfactant into an organic solvent, separating the solvent and forming a colored complex that can be quantitatively measured to give the actual concentration of the surfactant.
(FR)L'invention porte sur un procédé de mesure précis de la teneur d'une solution alcaline aqueuse en tensioactifs non ioniques. Ce procédé consiste à faire passer le tensioactif dans un solvant organique, à séparer le solvant, et à former un complexe coloré se prêtant à une mesure quantitative permettant de donner la teneur réelle en tensioactif.
Designated States: CN, JP, KR, SG.
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: English (EN)
Filing Language: English (EN)