Rate and yield enhancement in the preparation of ethoxylated quaternary ammonium borates using ethylene glycol
AssigneeAkzona Incorporated
InventorKeith D. Stanley
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Abstract
This disclosure relates to a method for producing a class of quaternary ammonium borate compounds, and more particularly, to an improved method for producing quaternary ammonium borates by adding a glycol to the boric acid that provided the compound's anion so as to form a borate ester chelate complex having a rate-enhancing effect.
Claims42
A method of producing an ethoxylated quaternary ammonium borate from an amine, diamine or ether amine, ethylene oxide, and boric acid, the improvement comprising adding a diol to said boric acid to form a borate ester chelate complex.
A method of producing an ethoxylated quaternary borate, said method comprising blending a diol and boric acid to form a borate ester chelate complex, adding said chelate complex in the presence of a solvent to an amine of the formula, ##STR8## wherein R.sub.1, R.sub.2, and R.sub.3 are either straight or branched-chain alkyl or aryl radicals or --H, and adding ethylene oxide to said amine and said chelate complex.
A method of producing an ethoxylated quaternary borate, said method comprising blending equimolar amounts of ethylene glycol and boric acid to form a borate ester chelate complex, adding said chelate complex in the presence of isopropyl alcohol to an amine of the formula, ##STR9## wherein R.sub.1 is a straight-chain alkyl radical and wherein the weight ratio of isopropyl alcohol to said amine is between 0.01:1 and 0.15:1, said method being reacted at a temperature of between 70.degree. C. and 120.degree. C., and at a gauge pressure of between 20 and 50 pounds per square inch, and adding ethylene oxide to said amine and said chelate complex.
A method of producing an ethoxylated quaternary borate, said method comprising blending a diol and boric acid to form a borate ester chelate complex, adding said chelate complex in the presence of a solvent to a diamine of the formula, ##STR10## wherein R.sub.1, R.sub.2, R.sub.4, and R.sub.5 are either straight or branched-chain alkyl or aryl radicals or --H, and wherein X is either an alkylene or aryl group, and adding ethylene oxide to said amine and said chelate complex.
A method of producing an ethoxylated quaternary borate, said method comprising blending equimolar amounts of ethylene glycol and boric acid to form a borate ester chelate complex, adding said chelate complex in the presence of isopropyl alcohol to a diamine of the formula, ##STR11## wherein R.sub.1 is a straight-chain alkyl radical and wherein the weight ratio of isopropyl alcohol to said diamine is between 0.01:1 and 0.15:1, said method being reacted at a temperature of between 70.degree. C. and 120.degree. C., and at a gauge pressure of between 20 and 50 pounds per square inch, and adding ethylene oxide to said amine and said chelate complex.
A method of producing an ethoxylated quaternary borate, said method comprising blending a diol and boric acid to form a borate ester chelate complex, adding said chelate complex in the presence of a solvent to an amine of the formula, ##STR12## wherein R.sub.1, R.sub.2, and R.sub.3 are either straight or branched-chain alkyl radicals and wherein R.sub.2 and R.sub.3 may also be --H, and adding ethylene oxide to said ether amine and said complex.
A method of producing an ethoxylated quaternary borate, said method comprising blending equimolar amounts of ethylene glycol and boric acid to form a borate ester chelate complex, adding said chelate complex in the presence of isopropyl alcohol to an ether amine of the formula, ##STR13## wherein R.sub.1 is a straight or branched-chain alkyl radical and wherein the weight ratio of isopropyl alcohol to said ether amine is between 0.01:1 and 0.15:1, said method being reacted at a temperature of between 70.degree. C. and 120.degree. C., and at a gauge pressure of between 20 and 50 pounds per square inch, and adding ethylene oxide to said amine and said chelate complex.
Dependencies are inferred from the claim text.