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:
Feb. 16, 1993
Filed:
Dec. 16, 1991
Mary M Fox, Fairfield, OH (US);
David C Heckert, Oxford, OH (US);
Kenneth R Luhrsen, Aurora, IN (US);
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
A metastable complex of calcium, citrate and malate is disclosed. This material is highly bioavailable, and is soluble in both neutral and acid solutions. The salt is prepared by the reaction of calcium carbonate, calcium hydroxide or calcium oxide with citric and malic acids in aqueous solution. The reaction mixture is dried at a temperature of less than 100.degree. C., and the resultant solid is a metastable solid. The solid can be ground to reduce the particle size for easier tabletting or adding to foods and beverages. Preferred salts are neutral and acidic salts which can be expressed by molar ratios.