Givaudan S.a.

Other

Robert Guisinger

Mary Amanda McKee

Randall Lane

Floyd Ramp

Robert B Wieland

James R Works

Theodore T Pearl

A method of preparing dry core-shell microcapsules from an aqueous dispersion of such capsules, comprising spraying the dispersion through a two-fluid air-liquid nozzle into a heated chamber having an upper part and a lower part, the spraying taking place in the upper part and the lower part being provided with a means of continuous capsule removal. The method allows the drying of capsules with considerably reduced losses.

Spray drying

A method of making core-shell capsules containing a water-immiscible liquid, comprising the steps of The method is simple and provides capsules that can be cold-loaded. The capsule material may be made of vegetable-derived materials.

Capsules

A process of preparation of microcapsules having a shell and a core that includes a waxy solid, includes

Wax encapsulation

A critical temperature indicator according to the present invention produces a visual, irreversible indication that the indicator has been subjected to a selected critical temperature. The critical temperature indicator includes a transparent housing, and a temperature sensitive transformable material operably contained within the transparent housing which includes mixture of water, nucleating agent (preferably ice nucleating active (INA) microorganisms), latex, and stabilizer which is translucent prior to exposure of a predetermined temperature and is transformed upon being subjected to the predetermined temperature to render a substantially consistent opaque material thus precluding visibility therethrough and thereby providing a sure visual sign that the indicator has been subjected to the predetermined temperature.

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Beavercreek, OH, United States of America

Robert Guisinger