C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 24/00 (2006.01) C09K 3/00 (2006.01) C09K 8/00 (2006.01) C09K 8/035 (2006.01) C11D 1/00 (2006.01)
Patent
CA 2669617
The present invention relates to a composition with pH-dependant viscosity, comprising (A) at least one surfactant of the general formula (I), (R1-[(O-(CH2)2)x1(O-CH(CH3)CH2)x2]O)kP(=O)(OH)3-k, wherein the sequence of the alkenoxy units is optional, R1 is selected from linear or branched C12-C22-alkyl, C12-C22-alkenyl, C12-C22-alkinyl, (C11-C21-alkyl)carbonyl, (C11-C21-alkenyl)carbonyl and (C11-C21-alkinyl)carbonyl, k is 1 or 2, and x1 and x2 independently from each other are an integer from 0 to 20, wherein the sum of x1 und x2is a number from 1 to 20, and (B) at least one thickener, comprising at least two hydrophobic groups R2, which are connected with each other via a bridging hydrophilic group (.alpha.). The invention further relates to the use for the controlled adjustment of the rheological properties of aqueous compositions and to methods for the treatment of underground geological formations.
L'invention concerne une composition à viscosité fonction du pH, contenant : (A) au moins un agent tensioactif de formule générale (I) (R1-[(O-(CH2)2)x1(O-CH(CH3)CH2)x2]O)kP(=O)(OH)3-k, où l'ordre de succession des unités alkylèneoxy est quelconque, R1 est choisi entre le C12-C22-alkyle, le C12-C22-alkényle, le C12-C22-alkinyle, le (C11-C21-alkyle)carbonyle, le (C11-C21-alkényle)carbonyle et le (C11-C21-alkinyle)carbonyle, linéaire ou ramifié, k est égal à 1 ou 2, et x1 et x2 sont respectivement des nombres entiers de 0 à 20, la somme de x1 et x2 étant un nombre de 0 à 20; et (B) au moins un épaississant comprenant au moins deux groupes hydrophobes R~ qui sont reliés entre eux par un groupe hydrophile de pontage (.alpha.). L'invention concerne également l'utilisation de cette composition pour le réglage contrôlé des propriétés rhéologiques de compositions aqueuses, et un procédé de traitement de formations géologiques souterraines.
Guzmann Marcus
Oetter Guenter
Ossmer Uwe
Steinbrenner Ulrich
Basf Se
Robic
LandOfFree
Ph-regulated thickener system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ph-regulated thickener system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ph-regulated thickener system will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1586646