The Procter Gamble Company

Donald Brown Compton

Timothy W Dake

Ashok Premchand Luhadiya

Glenn Richard Hudepohl

Toan Trinh

William Platt Lewis

Compositions containing calcium citrate malate wherein the calcium citrate malate exhibits one or more of: a pore area of at least about 30 m/g; a dissolution rate of at least about 95% by weight of the calcium citrate malate in less than about 120 seconds.

Compositions comprising calcium citrate malate and methods for making the same

A process for producing a calcium citrate malate composition by the steps of: combining a calcium source, a citrate source, a malate source and water to form a calcium citrate malate mixture. The mixture is reacted until reaching a peak temperature of from about 45&#xb0; C. to about 70&#xb0; C., and then cooled at a rate of from about 1&#xb0; C./minute to about 4&#xb0; C./minute to reach a final temperature of less than about 40&#xb0; C. A calcium citrate malate precipitate is formed and then dried to obtain the calcium citrate malate composition.

An improved liquid material dispenser of the type which transmits fluid to be diffused from an enclosed reservoir to an exposed evaporative surface by means of a wick. A wick is provided in the form of a sheet which has a very high evaporative area compared to the volume of liquid which is retained outside the confines of the reservoir at a given time. The critical relation of evaporation area to volume of liquid outside the reservoir is such that the exposed liquid material weight per square centimeter of evaporative surface is less than 10 milligrams per square centimeter. The material to be dispensed, preferably a perfume, comprises at least 50% of materials of no more than moderate volatility as defined herein. Materials having low volatility as defined herein are minimized, and the quantity of low volatility ingredients in said liquid materials is related herein to the holding capacity of the evaporative surface of the wick. The combination of the improved dispenser and improved liquid materials to be diffused maintains the evaporating liquid material at a relatively constant composition, and the liquid material evaporates at a relatively steady rate over the life of the dispenser.

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Cincinnati, OH, United States of America

Donald Brown Compton