The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 1993
Filed:
Apr. 25, 1991
Sharif Sharif, Midland, TX (US);
Zirconium Technology Corporation, Midland, TX (US);
Abstract
The present invention comprises reacting ammonium, sodium or potassium hydroxide or water soluble amines or amine derivatives with alpha-hydroxy carboxylic acid to prepare a neutral solution of the corresponding alpha-hydroxy carboxylic salt in a stoichiometric reaction. The alkali metal, ammonium, amine or amine derivative, alpha-hydroxy carboxylic acid salt is then added to solutions of zirconium which may be zirconium oxychloride, zirconium hydroxy chloride, zirconium acetate and the like, ammonia, water soluble amines or amine derivatives, diisopropylamine or a mixture of two or more of these bases, as well as soluble carbonates and/or bicarbonates of ammonium and alkali metals such as sodium and potassium, while mixing the solutions. The procedure produces a mildly acidic or basic solution of the zirconium alpha-hydroxy carboxylic chelate.