Patents Examined by Natalie Trousof
  • Patent number: 4614831
    Abstract: Described are para-carboalkoxy cyclohexanones defined according to the structure: ##STR1## wherein R.sub.1 represents hydrogen or C.sub.1 -C.sub.7 alkyl and R.sub.2 represents methyl or ethyl and uses thereof in augmenting or enhancing the aroma of consumable materials including foodstuffs, chewing gums, toothpastes, medicinal products, chewing tobaccos, perfume compositions, colognes and perfumed articles (e.g., solid or liquid anionic, cationic, nonionic or zwitterionic detergents, cosmetic compositions, fabric softener compositions, fabric softener articles, hair preparations and perfumed polymers. The compounds defined according to the structure: ##STR2## wherein R.sub.1 ' represents C.sub.4 -C.sub.7 alkyl and R.sub.2 represents methyl or ethyl are novel compounds.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: September 30, 1986
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Mark A. Sprecker, Wilhelmus J. Wiegers, Robert P. Belko, Richard M. Boden
  • Patent number: 4614815
    Abstract: Process for preparing diesterdiamides, consisting of reacting a diester with a diamine under wet conditions in the presence of suitable solvents and catalysts, to give the diester diamide, together with an ester salt derivative as impurity. The reaction product is then filtered to give a diesterdiamide cake and a mother solution of the reagents which also contains the solvent, the catalyst and the ester salt product. The cake is washed with a solvent of the ester salt, which also dissolves the reagents and catalysts. The mother solution and wash solution are then distilled, the two fractions obtained being recycled to the synthesis and to the wash.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: September 30, 1986
    Assignee: Anic S.p.A.
    Inventors: Franco Cognigni, Armando Mariano
  • Patent number: 4614832
    Abstract: Preparation of dialkyl oxalates by the oxidative carbonylation of alcohols which comprises reacting carbon monoxide with an alcohol in the presence of a catalytic amount of a catalyst comprising palladium in complex combination with a ligand and in the presence of a stoichiometric amount of a quinone. Advantageously, carboxylic acid cocatalysts may be employed in addition to the palladium-containing catalyst.
    Type: Grant
    Filed: December 17, 1979
    Date of Patent: September 30, 1986
    Assignee: Chevron Research Company
    Inventor: Steven P. Current
  • Patent number: 4614538
    Abstract: A herbicide of the formula: ##STR1##
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: September 30, 1986
    Assignee: GAF Corporation
    Inventor: Kou-Chang Liu
  • Patent number: 4613688
    Abstract: A process for the optical resolution of DL-cysteine which comprises(1) converting DL-cysteine into a hydrochloride thereof and forming a saturated or supersaturated aqueous solution thereof,(2) inoculating the solution with crystals of one optically active form of cysteine hydrochloride as seed crystals, and(3) preferentially crystallizing optically the same form of the cysteine hydrochloride used as the seed crystals, in a state of a monohydrate thereof.
    Type: Grant
    Filed: April 2, 1982
    Date of Patent: September 23, 1986
    Assignee: Showa Denko Kabushiki Kaisha
    Inventors: Chozo Inoue, Yoshiko Kurima, Soyao Moriguchi
  • Patent number: 4613705
    Abstract: Aromatic amines are alkylated by reaction with an alcohol in the presence of a Group V-B metal oxide alkylation catalyst, preferably a major proportion of a Group V-B metal oxide such as V.sub.2 O.sub.5 in combination with a minor proportion of an A-subgroup metal oxide such as SnO.sub.2, so that alkylation of the aromatic amine occurs. Under most reaction conditions a considerable portion of the alcohol alkylating agent such as ethanol not consumed in the alkylation reaction passes through the reaction zone undecomposed and thus can be readily recovered for recycle or other use.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: September 23, 1986
    Assignee: Ethyl Corporation
    Inventor: Duane C. Hargis
  • Patent number: 4613684
    Abstract: A commercially economical process for preparing a carboxylic acid ester from a carboxylic acid amide is disclosed. The process is very meritorious, since it produces neither ammonia nor ammonium sulfates. Rather, the process by-produces formamides which are very useful compounds as solvents. Further, formamide can easily be converted to hydrogen cyanide by dehydration. The process comprises reacting a carboxylic acid amide with a formic acid ester and/or methanol and carbon monoxide in the presence of a bicyclic amidine or tertiary amine catalyst and optionally in the co-existence of a metal carbonyl. An industrial process for preparing methyl methacrylate which is a materialization of the process shown above is described in detail referring to a figure.
    Type: Grant
    Filed: September 27, 1984
    Date of Patent: September 23, 1986
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Tetsuo Aoyama, Koichi Kida, Takako Uchiyama
  • Patent number: 4613680
    Abstract: Angelic acid or esters thereof which are useful as perfume materials are prepared by isomerizing tiglic acid or an ester thereof with an organic sulfinic acid as the catalyst, and novel esters of angelic acid represented by the formula ##STR1## wherein R represents 3-hexenyl, 3-methyl-2-butenyl, 3-methyl-3-butenyl, 3-methyl-2-pentenyl, 3-methyl-4-pentenyl, CH.sub.3 (CH.sub.2).sub.l - (in which l is an integer from 5 to 9), cyclopentyl, cyclohexyl, 2-methylpentyl, .alpha.-methylbenzyl, neryl or furfuryl are provided as part of said esters of angelic acid.
    Type: Grant
    Filed: February 24, 1984
    Date of Patent: September 23, 1986
    Assignee: Toray Industries, Inc.
    Inventors: Masanobu Naruto, Hisao Kondo, Go Hata
  • Patent number: 4613709
    Abstract: The pyrolytic dehydrochlorination of haloalkanes is carried out with an initiator comprising chiefly decachlorobutane and octachloro-1-butene.The process can be applied particularly to the production of chloroethylenes from the corresponding polychloroethanes.
    Type: Grant
    Filed: August 15, 1985
    Date of Patent: September 23, 1986
    Assignee: Solvay & Cie.
    Inventor: James Franklin
  • Patent number: 4613619
    Abstract: The invention concerns novel anti-arrhythmic amino-alcohol derivatives, characterized by the general formula (1) ##STR1## or pharmaceutically acceptable salts thereof, wherein R.sub.1, R.sub.2 and R.sub.3 each independently represent hydrogen, alkyl having 1-6 carbon atoms, alkoxy having 1-6 carbon atoms, acyloxy having 1-6 carbon atoms, hydroxy, halogen or optionally alkyl-substituted amino;R.sub.4 represents hydrogen, hydroxy or alkyl having 1-6 carbon atoms,R.sub.5 represents hydrogen or alkyl having 1-6 carbon atoms,R.sub.6 represents hydrogen, acyl having 1-18 carbon atoms or alkyl having 1-6 carbon atoms,R.sub.7 and R.sub.8 each independently represent hydrogen or alkyl having 1-6 carbon atoms,X represents a direct bond or an oxygen atom, andn and m each independently are integers having a value of 1 or 2, whereby the sum of n and m is 2 or 3.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: September 23, 1986
    Assignee: AKZO N.V.
    Inventors: Thomas Sleigh, David S. Savage, John K. Clark
  • Patent number: 4613467
    Abstract: A novel fluorinated copolymer is prepared by copolymerization of a fluorinated olefin with a novel sulfur containing fluorinated vinylether of the formula: ##STR1## wherein k is 0 or 1 and l is an integer of 3 to 5, which is prepared from starting materials which are also novel. Said copolymer is useful for preparation of a fluorinated cation exchange membrane having carboxylic acid groups and/or sulfonic acid groups which can be used advantageously in electrolysis of an aqueous alkali metal halide solution with improved electrolysis performance.
    Type: Grant
    Filed: August 30, 1983
    Date of Patent: September 23, 1986
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Kyoji Kimoto, Hirotsugu Miyauchi, Jukichi Ohmura, Mikio Ebisawa, Toshioki Hane
  • Patent number: 4613679
    Abstract: Emulsifiable polyolefin waxes are prepared by reacting low molecular weight homo- and copolymers containing at least one alpha-olefin monomer having at least three carbon atoms with diesters of maleic acid in the presence of a free radical source. These emulsifiable polyolefin waxes having a Gardner color of less than two form excellent nonionic emulsions which are useful in low color floor polishes.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: September 23, 1986
    Assignee: Eastman Kodak Company
    Inventor: Kenneth R. Mainord
  • Patent number: 4613708
    Abstract: This invention concerns new branched perfluoroalkylated ethenes, their preparation and their use, in the form of aqueous emulsions, as oxygen carriers, and in particular as blood substitutes or as perfusion agents for the preservation of organs before transplant.
    Type: Grant
    Filed: February 18, 1983
    Date of Patent: September 23, 1986
    Assignee: Produits Chemiques Ugine Kuhlmann
    Inventors: Jean Riess, Francois Jeanneaux, Maurice Le Blanc, Andre Lantz
  • Patent number: 4613690
    Abstract: Optically active compounds having a chlorine atom attached to the chiral carbon atom such as 2-bromoaliphatic acids can be racemized without by-product formation by heating an acidified solution of the organic acid at a temperature sufficient to accomplish racemization, the solution being substantially devoid of ionized halogen other than bromine ions. The preferred acidifying agent is hydrobromic acid. The use of hydrochloric acid causes extensive by-product formation.
    Type: Grant
    Filed: August 30, 1985
    Date of Patent: September 23, 1986
    Assignee: Stauffer Chemical Company
    Inventor: Samun K. Dahod
  • Patent number: 4613689
    Abstract: Optically active compounds having a chlorine atom attached to the chiral carbon atom such as 2-chloroaliphatic acids can be racemized without by-product formation by heating an acidified solution of the compound in the presence of chloride ion at sufficient strength, and at a pH and temperature sufficient to accomplish racemization. The preferred acidifying agent and source of chloride ion is hydrochloric acid. The use of hydrochloric acid at room temperature as well as the use of either sulfuric acid or caustic soda failed to produce racemization.
    Type: Grant
    Filed: August 30, 1985
    Date of Patent: September 23, 1986
    Assignee: Stauffer Chemical Company
    Inventors: Patricia Siuta-Mangano, Samun K. Dahod
  • Patent number: 4612395
    Abstract: A process for the production of N-(2-methyl-4-chlorophenyl)-formamidine derivatives of formula ##STR1## wherein R.sub.1 is hydrogen or an alkyl radical having 1 to 4 carbon atoms and R.sub.2 is an alkyl radical having 1 to 4 carbon atoms is disclosed which comprises reacting an N-substituted formamide with an inorganic acid chloride, such as phosphorus oxychloride, thionylchloride and phosgene, condensing the intermediate formed with o-toluidine and subsequently chlorinating the N-(2-methylphenyl)-formamidine derivative formed, all reaction steps involved in said process being carried out in the same solvent which is selected from the group of halogenated hydrocarbons.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: September 16, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Roland Dousse, Raoul Nebel
  • Patent number: 4612386
    Abstract: Carboxylic acid esters are produced by the reaction of a carboxylic acid halide with a carbonate ester in the presence of an initiator. The reaction of a dicarboxylic acid dihalide and a bis(alkyl carbonate) ester produces a polymeric polyester.
    Type: Grant
    Filed: December 17, 1981
    Date of Patent: September 16, 1986
    Assignee: The Dow Chemical Company
    Inventor: James M. Renga
  • Patent number: 4610828
    Abstract: L-carnitine and salts thereof are resolved from DL-carnitine by the use as a resolving agent of dibenzoyl-L(+)tartaric acid. L-carnitine is known as vitamin B.sub.T and is useful as a medicine.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: September 9, 1986
    Assignees: Nisshin Flour Milling Co., Ltd., Nisshin Chemicals Co., Ltd.
    Inventor: Haruhiko Kikuchi
  • Patent number: 4610827
    Abstract: A method for optical resolution of a DL-amino acid comprising reacting the DL-amino acid with an optically active N-acyl aspartic acid in a solvent or mixture of solvents, and separating the resulting two diasteromeric salts by way of the difference between their solubilities in the solvent or mixture of solvents. The difference in solubility may be enhanced by cooling, concentration, addition of a solubility-decreasing organic solvent, pH adjustment or salting out.
    Type: Grant
    Filed: July 10, 1984
    Date of Patent: September 9, 1986
    Assignee: Ajinomoto Co., Inc.
    Inventors: Toshihide Yukawa, Toru Ikeda, Shinichi Kishimoto, Katsumi Sugiyama
  • Patent number: 4611087
    Abstract: Novel salts of alkenylsuccinic monoesters represented by the following formulas (I) or (II): ##STR1## in which R.sub.1 represents a hydrocarbon group, R.sub.2 represents a hydrogen atom or a methyl group, A represents an alkylene group having from 2 to 4 carbon atoms, B represents a carbonyl group or a methylene group, M is a monovalent or divalent cation.The monoesters can be emulsion-polymerized under optimum conditions while varying the hydrophilic and oleophilic balance depending on the type of monomer because they have hydrophobic hydrocarbon groups and oleophilic carboxylate groups and ether bonds of polyalkyleneoxy groups.The compounds according to the invention are an excellent reactive surface active agent, and also useful as an improver or modifier for polymer because they can impart hydrophilicity to hydrophobic resins when they are used in larger amounts as in the case of reactive surface active agents employed for ordinary.
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: September 9, 1986
    Assignee: KAO Corporation
    Inventors: Osamu Yamashita, Noboru Moriyama, Shoji Ootani, Katsuyo Wasamoto