Patent ID: 8236739
Filing Date: 2012-08-07
Classification: C07F,C09K

Abstract:
1. A cross-linking composition comprising (a) an aqueous liquid; (b) a cross-linkable organic polymer; and (c) a solution comprising a zirconium cross-linking agent which comprises a zirconium complex having a 1:2 to 1:4 molar ratio of zirconium to triethanolamine and a 1:0.1 to 1:1 molar ratio of zirconium to N,N,N′,N′-tetrakis-(2-hydroxypropyl)-ethylene diamine and wherein the cross-linking composition has a cross-linking rate of 3-8 minutes generating viscosity in the range of 500 to 1000 centipoise (cp) after 90 minutes at pH 10 by simulation in a FANN viscometer at 275° F. (135° C.) and 122 rpm at 212 reciprocal second of shear.