DECAFFEINATION OF LIQUID MEDIUM

A method of decaffeinating liquids such as coffee, which method comprises contacting an effective amount of an adsorbent resin with a liquid solution containing caffeine so as to adsorb caffeine from the liquid solution onto the adsorbent resin, wherein the adsorbent resin is made from a gel copolym...

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Bibliographische Detailangaben
Hauptverfasser:	DAWSON-EKELAND, KARI R, STRINGFIELD, RICHARD T
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CHEWING GUM COCOA COCOA PRODUCTS, e.g. CHOCOLATE COFFEE COMPOSITIONS BASED THEREON CONFECTIONERY FOODS OR FOODSTUFFS HUMAN NECESSITIES ICE-CREAM MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MANUFACTURE, PREPARATION, OR INFUSION THEREOF METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATION THEREOF SEPARATION SUBSTITUTES FOR COCOA OR COCOA PRODUCTS TEA THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS THEIR SUBSTITUTES THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING
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Beschreibung
Zusammenfassung:	A method of decaffeinating liquids such as coffee, which method comprises contacting an effective amount of an adsorbent resin with a liquid solution containing caffeine so as to adsorb caffeine from the liquid solution onto the adsorbent resin, wherein the adsorbent resin is made from a gel copolymer of a monovinyl aromatic monomer and a crosslinking monomer, where the gel copolymer has been post-crosslinked in the swollen state in the presence of a Friedel-Crafts catalyst and can be functionalized with hydrophilic groups if so desired. 36,217-F