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| Number | Title | Issue Date |
| 6849660 | Antimicrobial biaryl compounds Provided are antibacterial compounds having Formula I: In such compositions, X is O or S; Y is CH2; n is 0 or 1. One of R1 and R1′ is —C(O)NR5R5′ | 02/01/2005 |
| 6518425 | Method of manufacture of 1,3-oxathiolane nucleosides Processes for the preparation of 1,3-oxathiolane nucleosides are provided that include efficient methods for the preparation of the 1,3-oxathiolane ring and subsequent condensation of the 1,3-oxathiolane with a pyrimidine or purine base. Using the process... | 02/11/2003 |
| 6348470 | Antitussive compositions The invention relates to the use of theobromine and/or its salts and/or its complexes optionally in admixture with other known active ingredients and inert solid or liquid carriers, additives and auxiliary agents for the manufacture of a pharmaceutical co... | 02/19/2002 |
| 5702747 | Process for decaffeinating aqueous caffeine-containing extracts A process is described for decaffeinating caffeine-containing aqueous extracts with which the caffeine is extracted selectively with activated carbon fibers.... | 12/30/1997 |
| 5605892 | Compositions of arginine amide with cyclodextrin of caffeine, and methods of use An aqueous agent comprising at least one arginine amide selected from the group consisting of (2R,4R)-4-methyl-1-[N2 -((RS)-3-methyl-1,2,3,4-tetrahydro-8-quinolinesulfonyl)-L-arginyl]-2-piper idinecarboxylic acid, monohydrate thereof and pharmac... | 02/25/1997 |
| 5399688 | Caffeine recovery from activated carbon The invention relates to a process for recovering caffeine from caffeine-loaded activated carbon and which is characterized in that the caffeine destroying activity of the activated carbon is reduced before or after loading with caffeine. The activated ca... | 03/21/1995 |
| 5371221 | Process for recovery of caffeine from activated carbon The invention relates to a process for recovering caffeine from caffeine-loaded activated carbon using a circulated inert gas sweeping stream held at a temperature of 250° to 460° C., in which process the activated carbon is preheated prior to the desor... | 12/06/1994 |
| 5260437 | Recovery of caffeine from tea trimmings and vegetable wastes Tea trimmings and wastes are dried and then burned either directly or indirectly to liberate caffeine which is recovery by water scrubbing or electrostatic precipitation. The crude caffeine is then concentrated and purified by crystallization for use in f... | 11/09/1993 |
| 5141941 | Aralkylamine derivatives, and fungicides containing the same Disclosed are a compound of the formula (I) or an acid addition salt thereof: ##STR1## wherein Q represents R1 , R2, R3, R4, R5, R6, n and z are defined as in the specification, prepar... | 08/25/1992 |
| 4996317 | Caffeine recovery from supercritical carbon dioxide A process and apparatus for caffeine recovery from supercritical carbon dioxide is disclosed. The process involves countercurrent extraction of caffeine from supercritical carbon dioxide with water at pressures in excess of 1,000 p.s.i. in an unpacked ext... | 02/26/1991 |
| 4885181 | Process for decaffeinating green coffee A process for decaffeinating green coffee by extraction of the coffee with water and treatment of the aqueous extract with activated carbon whereby the caffeine is largely absorbed by the activated carbon. The resulting caffeine-loaded activated carbon is... | 12/05/1989 |
| 4877631 | Process for recovering caffeine absorbed in activated carbon, and a process for decaffeinating coffee A process for recovering from caffeine-loaded activated carbon by treatment f the loaded carbon with an acid. According to the present invention, activated carbon is treated with a compound having the formula ##STR1## wherein R1 is methyl, ... | 10/31/1989 |
| 4818552 | Process for recovering caffeine adsorbed to activated carbon This invention relates to a process for recovering caffeine from laden acated carbon by treating the laden activated carbon with an organic acid. In order to achieve good extraction efficiencies, on the one hand, and to avoid problems with the flash poin... | 04/04/1989 |
| 4767634 | Coffee decaffeination with caffeic acid A method of decaffeination wherein a caffeine-containing coffee extract solution is contacted with caffeic acid in the presence of water. The caffeine and the caffeic acid form an insoluble caffeine/caffeic acid complex wherein the complex is separated fr... | 08/30/1988 |
| 4758662 | Purification of caffeine A process for the purification of caffeine which comprises carrying out the following steps in any order; (a) recrystallization of caffeine from an aqueous alkaline solution of caffeine containing a reducing agent and (b) extraction of the caffeine from an aqu... | 07/19/1988 |
| 4678583 | Use of hydrates for aqueous solution treatment A process for forming a purified solute from an aqueous solution is provided whereby a mixture of an extractant, a hydrate former and the aqueous solution is first formed. The hydrate former forms a hydrate with water while the solute does not form a hydr... | 07/07/1987 |
| 4673743 | Process for separating caffeine from caffeine-loaded active carbon The invention relates to a process for separating caffeine from caffeine-loaded active carbon in which a circulated inert gas sweeping stream is passed rectangularly through the stream of active carbon at a temperature of 350° to 450° C., and the caffei... | 06/16/1987 |
| 4565868 | Process for preparing guanine derivatives 1-Monophosphate esters, 1,3-bisphosphate esters and cyclic phosphate esters of 9-(1,3-dihydroxy-2-propoxymethyl)guanine are useful as antiviral agents.... | 01/21/1986 |
| 4548827 | Separate recovery of caffeine and coffee solids adsorbed on activated carbon The present invention relates to a method of separately recovering caffeine and non-caffeine solids adsorbed on activated carbon. Activated carbon containing the adsorbed solids is contacted with an aqueous basic solution to elute the non-caffeine coffee ... | 10/22/1985 |
| 4540784 | Recovery of caffeine adsorbed to activated carbon The invention relates to a process for recovering caffeine adsorbed to activated carbon by treating the loaded activated carbon with formic acid.... | 09/10/1985 |
| 4531003 | Purification of caffeine A process for the purification of caffeine which comprises carrying out the following steps in any order; (a) recrystallization of caffeine from an aqueous alkaline solution of caffeine containing a reducing agent and (b) extraction of the caffeine from an aqu... | 07/23/1985 |
| 4521438 | Coffee extract decaffeination method A method of decaffeinating caffeine-containing liquids and particularly aqueous coffee extracts is disclosed. Caffeic acid is added to a caffeine-containing aqueous coffee extract so as to form an insoluble, colloidal caffeic acid/caffeine complex. Crysta... | 06/04/1985 |
| 4513136 | Process for recovering caffeine from activated carbon The recovery of caffeine from activated carbon is accomplished according to the present invention by employing an aqueous acetic acid solution, preferably having a concentration of between about 50 and 80%, by weight, and which is capable of competing for... | 04/23/1985 |
| 4505940 | Non-caffeine solids recovery process An improved roast and ground coffee extract decaffeination method which involves partitioning non-caffeine solids from caffeine and returning the non-caffeine solids to a decaffeinated coffee product for improved flavor and economics. Liquid-liquid extrac... | 03/19/1985 |
| 4506072 | Regeneration of caffeine-loaded activated carbon with hot water The invention relates to a process for recovering caffeine adsorbed to activated carbon with simultaneous regeneration of the activated carbon in which the caffeine-loaded activated carbon is treated with water at a pressure of at least 86 bar and at a te... | 03/19/1985 |
| 4495211 | Process for the decaffeination of green coffee beans A process for the decaffeination of green coffee beans by the extraction, process stage (a), of soaked green coffee beans with an equilibrium extract of coffee beans, from which extract caffeine has been removed, resulting in caffeine-deficient beans, wh... | 01/22/1985 |
| 4481223 | Decaffeination with treated activated carbon An aqueous coffee extract is decaffeinated with a treated activated carbon. The activated carbon is first contacted with an ethyl cellulose solution in order to adsorb the ethyl cellulose on the carbon. The ethyl cellulose-containing activated carbon is t... | 11/06/1984 |
| 4465699 | Decaffeination process A process for producing a decaffeinated vegetable material, such as coffee or tea in aqueous extract or solid form, for use in preparation of beverages, which comprises: (a) contacting a caffeine-containing composition with a liquid, water-immiscible fatt... | 08/14/1984 |
| 4453007 | Method for increasing the purity of amphoteric compound compositions Provided is a method of increasing the purity of amphoteric compound compositions. The method is: (a) providing an amount of a crude amphoteric compound composition, (b) using a portion of the crude composition to prepare in solution a cationic salt of th... | 06/05/1984 |
| 4443601 | Recovery of caffeine from caffeine adsorbents Caffeine adsorbed on caffeine adsorbents is recovered by contacting the carbon with a solvent, preferably an aqueous solution of ethylene carbonate or propylene carbonate. The caffeine adsorbent is contacted with the solvent for a period time sufficient t... | 04/17/1984 |
| 4390698 | Detheobromination of cocoa A process for the recovery of theobromine from an aqueous solution containing theobromine extracted from cocoa material, which comprises contacting the solution with a substantially neutral adsorbent and separating the adsorbent, with theobromine adsorbed... | 06/28/1983 |
| 4364964 | Process of the decaffeination of green coffee beans A process for removal of caffeine from green coffee beans is disclosed by extraction with an aqueous liquid and preferential adsorption of caffein from the extract by means of a synthetic polymer resin of the type that is obtainable by polymerization or c... | 12/21/1982 |
| 4364965 | Process for extracting caffeine from solutions thereof in carbon dioxide under high pressure Extraction of caffeine from solutions thereof is accomplished with carbon dioxide under high pressure, using adsorbents which combine a high adsorption capacity for caffeine with such hydrophilic properties that the caffeine-laden adsorbent can be regener... | 12/21/1982 |
| 4331694 | Removal of caffeine by selective adsorption using zeolite adsorbents Caffeine is selectively adsorbed from aqueous solutions such as coffee and tea by contact with a particular form of zeolites created by high temperature rigorous steaming of a low sodium form of zeolite Y.... | 05/25/1982 |
| 4324840 | Adsorption decaffeination The process disclosed herein decaffeinates an aqueous caffeine solution by contacting it with a solid caffeine adsorbent which is made more selective to caffeine by a thin layer of a water-immiscible, caffeine-specific solvent. The caffeine is selectively... | 04/13/1982 |
| 4308291 | Process for decaffeinating green coffee A process for decaffeinating green coffee comprising treating green coffee with at least one acetal of the general formula ##STR1## wherein R1 is a hydrogen atom or a methyl group and R2 and R3 are each a methyl group... | 12/29/1981 |
| 4298736 | Carbon-caffeine separation The object of the invention is to provide an improved process for recovering caffeine adsorbed on activated carbon. Caffeine removed from the commercial decaffeination of vegetable materials and extracts can be effectively removed from the extraction solvent, ... | 11/03/1981 |
| 4216326 | Intermediates for preparing anti-inflammatory phenyl-lower-alkylamines N-{3- and 4-[R1 -(phenyl)-C(.dbd.X)]-phenyl-lower-alkyl}amines, useful as anti-inflammatory agents, are prepared either by reduction of 3- or 4-[R1 -(phenyl)-CO]-phenyl-lower-alkanoylamines, which are also useful as anti-inflammatory... | 08/05/1980 |
| 4160042 | Process for treating an aqueous extract of a vegetable material An aqueous extract of a vegetable material is treated with a view to reducing its caffeine and/or chlorogenic acid content. The treatment is with a solid ligneous adsorbent of vegetable origin in divided form at a temperature of from 0° to 100° C. so as... | 07/03/1979 |
| 4118347 | Filler for liquid chromatography A granular filler for liquid chromatography consisting essentially of a porous copolymer of (A) a glycidyl monovinyl ester of glycidyl monovinyl ether and (B) an alkylene glycol divinyl ester with component (A) being crosslinked by component (B) to form a... | 10/03/1978 |
