Patent ID: 7851417

Claim:
A process to prepare a solution of borozirconate complex, which solution is suitable for use in a cross-linking composition which comprises: (a) contacting a zirconium complex with alkanolamine at a mole ratio of 1 to 10 moles of alkanolamine to zirconium in an alcohol to form a first mixture; (b) contacting the first mixture with glycerol and water at a mole ratio of about 0.1 to 1 moles of glycerol per mole of zirconium and a mole ratio of about 1 to 12 moles of water per mole of zirconium, to produce a second mixture; (c) contacting the second mixture with a boron compound at a mole ratio of about 1 to 6 moles of boron per mole of zirconium and at a temperature of 25° C. to 90° C. to produce a solution comprising a borozirconate complex.