Decaffeination process
OF THE INVENTION The present invention employs benzyl alcohol (C.sub.6 H.sub.5 CH.sub.2 OH) as a decaffeinating solvent for use with coffee beans, and the like. The high solubility of caffeine and th... Read More
Inventors: Strobel, Rudolf G. K.; Eich, Richard A.;, Assignee: The Procter & Gamble Company (Cincinnati, OH) |
Method of using developer-finisher compositions for lithographic plates
OF THE PREFERRED EMBODIMENT As the first step in the production of photographic elements such as lithographic printing plates, a sheet substrate such as aluminum compositions suitable for the manufac... Read More
Inventors: Dhillon, Major S.; Hsieh, Shane; Seeley, Douglas A.;, Assignee: Hoechst Celanese Corporation (Somerville, NJ) |
Propylene carbonate recovery process
OF THE INVENTION Impure propylene carbonate is an effluent from an upstream industrial process in which relatively pure propylene carbonate is used as either a developer or a stripper, or as both, in... Read More
Inventors: Bantu, Nageshwer R.; Bhatt, Anilkumar C.; Keesler, Ross W.; Papathomas, Konstantinos; Sinclair, Terry D.; Wagner, Jerome J.;, Assignee: International Business Machines (Armonk, NY) |
Solvent stabilization process and method of recovering solvent
OF THE INVENTION Impure solvent, such as propylene carbonate, gamma-butyrolactone or benzyl alcohol is an effluent from an upstream industrial process in which relatively pure solvent has been used a... Read More
Inventors: Bhatt, Anilkumar C.; Papathomas, Kostas I.; Sinclair, Terry D.; Wagner, Jerome J.;, Assignee: Inernational Business Machines Corporation (Armonk, NY) |
Paint stripping compositions and methods
OF THE INVENTION The present invention relates to the discovery that the inclusion of light reactive or conjugated polyenes, preferably natural product conjugated polyenes such as terpenes in combina... Read More
Inventors: Stevens, Edwin;, Assignee: |
Paint stripper
I claim: 1. A method of stripping paint from a surface which comprises (A) contacting the paint with a paint-stripper composition comprising (A-1) from about 10% to about 80% by weight of at least one... Read More
Inventors: Sim, Johnny O.;, Assignee: McGean-Rohco, Inc. (Cleveland, OH) |
Process for preparing optically active alcoholic compounds
OF THE INVENTION In the following, the present invention is described in detail. In the present invention, the above-mentioned R.sup.1 and R.sup.2 in the general formula (1) always represent differen... Read More
Inventors: Sugawa, Tadashi; Inoue, Kenji; Kan, Kazunori;, Assignee: Kaneka Corporation (Osaka, JP) |
Production of phthalic anhydride
AND PREFERRED EMBODIMENTS For convenience, the detailed description of the process of the present invention will be described in terms of the production of phthalic anhydride via the di(trimethylammo... Read More
Inventors: Paustian, John E.; Gelbein, Abraham P.;, Assignee: The Lummus Company (Bloomfield, NJ) |
Method for the production of 4-hydroxyphenylacetic acid
We claim: 1. A method for producing 4-hydroxyphenylacetic acid, which consists essentially of sequentially (a) reacting o-chlorophenol with glyoxylic acid in an alkaline solution at a temperature of f... Read More
Inventors: Kaniss, Normann; Bauer, Adolf;, Assignee: Diamalt Aktiengesellschaft (Munich, DE) |
Polymer epoxidation process
I claim: 1. A process for the production of epoxidized polymers substantially free of gel which comprises contacting: (a) a rubbery polymer of a conjugated diene in (b) an aliphatic or alicyclic hydro... Read More
Inventors: Udipi, Kishore;, Assignee: Phillips Petroleum Company (Bartlesville, OK) |
Crosslinked adhesive compositions comprising epoxy functionalized polydiene block polymers and hydrogenated tackifying resins
OF THE INVENTION Block polymers containing ethylenic unsaturation can be prepared by copolymerizing one or more olefins, including at least one diolefin, particularly conjugated diolefins, by themsel... Read More
Inventors: Erickson, James R.;, Assignee: Shell Oil Company (Houston, TX) |
Crosslinkable low viscosity star polymer blends
OF THE INVENTION Polymers containing ethylenic unsaturation can be prepared by copolymerizing one or more polyolefins, particularly a diolefin, by themselves or with one or more alkenyl aromatic hydr... Read More
Inventors: Handlin, Jr., Dale L.; Erickson, James R.; Stewart, David R.;, Assignee: Shell Oil Company (Houston, TX) |
Crosslinked epoxy functionalized polydiene block polymers and adhesives
OF THE INVENTION Block polymers containing ethylenic unsaturation can be prepared by copolymerizing one or more olefins, including at least one diolefin, particularly conjugated diolefins, by themsel... Read More
Inventors: Erickson, James R.;, Assignee: Shell Oil Company (Houston, TX) |
Methods for dynamically refining and deodorizing fats and oils
It is accordingly an object of the present invention to provide an improved method and apparatus for dynamically refining and deodorizing fats and oils. Another object of the present invention is to p... Read More
Inventors: Rivers, Jr., Jacob B.;, Assignee: |
Process for the production of sterol and tocopherol concentrates
OF THE INVENTION The present invention provides a process for the esterification/trans-esterification of a deodorizer distillate mixture, said mixture comprised of sterols, tocopherols, free fatty ac... Read More
Inventors: Sumner, Jr., Charles E.; Barnicki, Scott D.; Dolfi, Martin D.;, Assignee: Eastman Chemical Company (Kingsport, TN) |
Coke-oven door assembly
I claim: 1. A coke-oven door assembly comprising: a rigid door frame; a mounting block adjacent and spaced from the door frame; a door-plug backing plate fixed to the mounting block; a membrane having... Read More
Inventors: Schlosser, Rainer;, Assignee: Krupp Koppers GmbH (Essen, DE) |
4,4'-Isopropylidene-bis(3- and 4-phenyleneoxyphthalic anhydride)
What we claim as new and desire to secure by Letters Patent of the United States: 1. The compound 2,2-bis-[4-(2,3-dicarboxyphenoxy)phenyl]propane dianhydride. 2. The compound 2,2-bis-[4-(3,4-dicarboxy... Read More
Inventors: Heath, Darrell R.; Wirth, Joseph G.;, Assignee: General Electric Company (Schenectady, NY) |
Imide carbonyl compounds and method for making
What we claim as new and desire to secure by Letters Patent of the United States is: 1. An imide carbonyl compound having the formula, ##STR25## where R is a trivalent aromatic organic radical selecte... Read More
Inventors: Markezich, Ronald L.; Takekoshi, Tohru;, Assignee: General Electric Company (Schenectady, NY) |
Method for making aromatic ether imides
What I claim as new and desire to secure by Letters Patent of the United States is: 1. A method for making aromatic ether imides of the formula, ##STR9## which comprises (A) heating at 25.degree. to 1... Read More
Inventors: Williams, III, Frank J.;, Assignee: General Electric Company (Schenectady, NY) |
Fluorophthalamic acids and method of preparation
What is claimed is: 1. Fluorophthalamic acids characterized by the formula ##STR10## wherein n is 1 or 2. 2. 4,5-difluorophthalamic acid. 3. 4-fluorophthalamic acid. 4. 5-fluorophthalamic acid. 5. 3-f... Read More
Inventors: Fifolt, Michael J.; Foster, Arthur M.;, Assignee: Occidental Chemical Corporation (Niagara Falls, NY) |
Process for the preparation of 4-fluorophthalic anhydride
As indicated above, the present invention relates to a process for preparing 4-fluorophthalic anhydride which comprises contacting a dihalohexahydrophthalic anhydride with a dehydrogenation catalyst.... Read More
Inventors: Tang, David Y.;, Assignee: Occidental Chemical Corporation (Niagara Falls, NY) |
Process for preparing substituted phthalic anhydrides
OF THE INVENTION The present invention comprises a process for preparing substituted phthalic anhydrides by reacting the Diels-Alder addition product of a conjugated diene and maleic anhydride with b... Read More
Inventors: Telschow, Jeffrey E.;, Assignee: Stauffer Chemical Company (Westport, CT) |
Destruction of DNPI in an all nitric acid nitration process
OF THE INVENTION For the purpose of this specification and the appended claims, the "boiling point of nitric acid" is defined as the temperature at which the specific nitric acid used, under the pres... Read More
Inventors: Odle, Roy R.;, Assignee: General Electric Company (Pittsfield, MA) |
Process for the preparation of n-alkylphthalimide and copolymer derived therefrom
OF THE INVENTION The process of the invention is directed to the preparation of compounds of formula I: ##STR1## wherein R is lower alkyl of from one to six carbons such as methyl, ethyl, n-propyl, n... Read More
Inventors: Peters, Edward N.;, Assignee: General Electric Company (Pittsfield, MA) |
Method for making N-substituted nitrophthalimides
OF THE INVENTION The nitric acid useful for the nitration process disclosed herein should have a concentration of at least about 95% and is preferably within the range of from about 97.5 to about 100... Read More
Inventors: Groeneweg, Peter G.; Odle, Roy R.;, Assignee: General Electric Company (Pittsfield, MA) |
Process for the preparation of 4-bromophthalic anhydride
OF THE INVENTION Surprisingly, 4-chlorotetrahydrophthalic anhydride reacts with bromine, in the presence of iron, to form a mixture of 4-chlorophthalic anhydride and the 4-bromophthalic anhydride. 4-... Read More
Inventors: Cocoman, Mary K.; Schwartz, Willis T.;, Assignee: Occidental Chemical Corporation (Niagara Falls, NY) |
Preparation of halogen substituted phthalic anhydride
OF THE INVENTION This invention is concerned with the aromatization of a cyclic compound to form a fully aromatized ring and specifically to convert a halogen substituted tetrahydrophthalic anhydride... Read More
Inventors: Spohn, Ronald F.;, Assignee: Occidental Chemical Corporation (Niagara Falls, NY) |
Vapor phase catalytic oxidation of butane to maleic anhydride
OF THE INVENTION The invention herein resides in an improved process for the selective vapor phase oxidation of n-butane to maleic anhydride using an effective amount of a vanadium/phosphorus oxide c... Read More
Inventors: Contractor, Rashmikant M.;, Assignee: E.I. Du Pont de Nemours and Company (Wilmington, DE) |
Preparation of halogenated phthalic anhydrides
OF THE INVENTION The present invention provides a process for aromatizing 4,5-dichlorotetrahydrophthalic anhydride to form 4,5-dichlorophthalic anhydride and 4-chloro-tetrahydrophthalic anhydride to ... Read More
Inventors: Fertel, Lawrence B.; O'Reilly, Neil J.; Lin, Henry C.;, Assignee: Occidental Chemical Corporation (Grand Island, NY) |
Nitration of phthalic acid and phthalic anhydride using nitric acid
OF THE INVENTION For the purpose of this specification and the appended claims, the "boiling point of nitric acid" is defined as the temperature at which the specific nitric acid used, under the pres... Read More
Inventors: Odle, Roy R.;, Assignee: General Electric Company (Pittsfield, MA) |
Liquid Purification 
