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:
Nov. 14, 1995
Filed:
Nov. 16, 1994
Sharif Sharif, El-Kaherah, EG;
Benchmark Research and Technology, Inc., San Antonio, TX (US);
Abstract
Aqueous solutions of zirconium chelates are prepared by combining an alpha-hydroxycarboxylic acid salt with a solution of a zirconium compound. That preparation first involves formulating an alpha-hydroxycarboxylic acid salt through a stoichiometric reaction between an alpha-hydroxycarboxylic acids and a base. The stoichiometric reaction product consists of an approximately neutral solution of a corresponding alpha-hydroxycarboxylic acid salt. The alpha-hydroxycarboxylic acid salt is then added to a solution of a zirconium compound to produce a mildly acidic or basic solution of the corresponding zirconium alpha-hydroxycarboxylic chelate. Alternatively, the alpha-hydroxycarboxylic acid salt may be pre-prepared and added in solid or liquid form to the zirconium compound before the zirconium compound is placed in solution so that the corresponding zirconium alpha-hydroxycarboxylic chelate is produced.