Patents Examined by Leah Hendriksen
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Patent number: 4558159Abstract: Polyether biguanide salts of the formula: ##STR1## wherein: y ranges from 0 to 6,z ranges from 2 to 7,A is an anion selected from the group consisting of chloride, bromide, sulfate, bisulfate, phosphate, dihydrogen phosphate and hydrogen phosphate,n is the valence of the anion, andR.sub.1 is an alkyl of 9 to 18 carbon atoms or alkylphenyl of 15 to 18 carbon atoms, are diluted in water solution. In a preferred embodiment, R.sub.1 is nonylphenyl.These salts are surface active agents used as hair conditioning agents, foam boosters, corrosion inhibitors, ore flotation agents, fabric softeners or germicides, etc.Type: GrantFiled: May 29, 1984Date of Patent: December 10, 1985Assignee: Texaco Inc.Inventors: David R. McCoy, Carter G. Naylor
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Patent number: 4514406Abstract: A compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are, same or different, each a hydrogen atom, a C.sub.1 -C.sub.3 alkyl group optionally substituted with halogen, an alkoxyalkyl or alkylthioalkyl group of the formula: R.sub.7 --Z--(CH.sub.2).sub.q --, a C.sub.2 -C.sub.3 alkenyl group, a C.sub.2 -C.sub.4 alkynyl group, a C.sub.1 -C.sub.2 alkoxy group, a C.sub.1 -C.sub.2 alkylthio group, a phenyl group, a pyridyl group, a furyl group or a thienyl group, or R.sub.1 and R.sub.2 may be combined together to form a saturated or unsaturated 5- or 6-membered ring having 0 to 2 oxygen or sulfur atom(s) within the ring, R.sub.3 and R.sub.4 are, same or different, each a hydrogen atom or a methyl group, R.sub.5 is a methyl group or a halogen atom, R.sub.6 is a C.sub.1 -C.sub.4 alkyl group, a methoxy group, a halogen atom, a trifluoromethyl group or a nitro group, R.sub.Type: GrantFiled: February 16, 1983Date of Patent: April 30, 1985Assignee: Sumitomo Chemical Company, LimitedInventors: Tadashi Ohsumi, Makoto Hatakoshi, Hirosi Kisida
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Patent number: 4478851Abstract: Benzylidene derivatives of the formula: ##STR1## in which each of X.sub.1, X.sub.2, X.sub.3 and X.sub.4 independently of one another represents hydrogen, halogen, a linear or branched alkyl radical of 1 to 4 carbon atoms, CF.sub.3, NO.sub.2, phenyl, methoxy, or amino, at least two of the substituents X.sub.1, X.sub.2, X.sub.3 and X.sub.4 being different from hydrogen, and R represents a linear or branched alkyl radical of 1 to 16 carbon atoms or an alkenyl radical of 2 to 8 carbon atoms, which may be produced by reaction of the corresponding ketones with an amine, are active on the central nervous system, especially as anti-convulsants.Type: GrantFiled: May 2, 1983Date of Patent: October 23, 1984Assignee: SynthelaboInventors: Jean-Pierre Kaplan, Bernard Raizon
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Patent number: 4362672Abstract: A difluorohaloacetyl fluoride is produced by (a) producing an intermediate having a group of the formulaXCF.sub.2 CFYOSO.sub.2.sup.-wherein X is I or Br, Y is F, Cl, Br or I; by reacting a polyfluoroethylene of the formulaCF.sub.2 .dbd.CFYwith a reagent obtained by mixing sulfur trioxide with a halogen selected from iodine and bromine; and (b) decomposing said intermediate into said product.Type: GrantFiled: July 27, 1981Date of Patent: December 7, 1982Assignee: Asahi Glass Company, Ltd.Inventors: Masaaki Yamabe, Seiji Munekata, Shunichi Samejima
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Patent number: 4315031Abstract: This invention relates to thiosubstituted cyclic amino acids, to a process for their preparation and to pharmaceutical compositions containing them together with an inert non toxic pharmaceutical carrier.Type: GrantFiled: August 28, 1978Date of Patent: February 9, 1982Assignee: Science Union et CieInventors: Michel Vincent, Georges Remond, Jacques Bure
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Patent number: 4309439Abstract: A novel substituted-arylacetic acid ester of the formula, ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen or a halogen atom, a C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.1 -C.sub.4 alkoxy, cyano, nitro, methylthio, C.sub.1 -C.sub.4 alkanoyl, C.sub.1 -C.sub.4 alkanoyloxy, or C.sub.1 -C.sub.4 alkoxycarbonyl group, or R.sub.1 and R.sub.2, taken together, may form methylenedioxy, a C.sub.3 -C.sub.5 alkylene or butadienylene (--CH.dbd.CH--CH.dbd.CH--) ring; R.sub.3 is a C.sub.2 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, propargyl, C.sub.3 -C.sub.6 cycloalkyl or cyclopropylmethyl group; R.sub.4 is hydrogen or a halogen atom, methyl or ethyl group; R.sub.5 is allyl, propargyl, 3-butenyl, 3-butynyl, phenyl or benzyl group; and A is oxygen or sulfur atom or --CH.dbd.CH-- group, which possesses various useful insecticidal and acaricidal activities and can be prepared by reacting a substituted-arylacetic acid of the formula: ##STR2## wherein R.sub.1, R.sub.2, R.sub.Type: GrantFiled: February 28, 1978Date of Patent: January 5, 1982Assignee: Sumitomo Chemical Company, LimitedInventors: Nobuo Ohno, Isao Ohno, Toshio Nishioka, Hisami Takeda, Kiyoshi Kasamatsu
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Patent number: 4308216Abstract: A one-step process for the preparation of pure aromatic dicarboxylic acid dichlorides by reacting an aromatic dicarboxylic acid or an aromatic dicarboxylic acid mixture with phosgene in the presence of a catalyst and, optionally, in a solvent or diluent, by using tertiary phosphines as catalysts, and the use of the dicarboxylic acid dichlorides obtained for the production of polycondensates.Type: GrantFiled: June 30, 1980Date of Patent: December 29, 1981Assignee: Bayer AktiengesellschaftInventors: Dieter Freitag, Manfred Schmidt, Ludwig Bottenbruch
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Patent number: 4308397Abstract: Alkyl alkoxyacetates from C.sub.3 -C.sub.6 secondary alcohols, formaldehyde and carbon monoxide at a temperature of 5.degree. C. to -20.degree. C. and a carbon monoxide pressure of 0.5 to 275 atm.Type: GrantFiled: April 11, 1980Date of Patent: December 29, 1981Assignee: Chevron ResearchInventor: Shigeto Suzuki
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Patent number: 4301163Abstract: Amino-ether oxides of formula: ##STR1## in which R.sub.1 is lower alkyl, R.sub.2 and R.sub.3 which are the same or different are hydrogen or lower alkyl, R.sub.4 is a phenyl or phenoxy nucleus optionally monosubstituted to trisubstituted by substituents which are the same or different, halogen or lower alkoxy, R.sub.5 is a phenyl radical optionally monosubstituted to trisubstituted by substituents which are the same or different, halogen, lower alkyl, lower alkoxy or nitro, a pyridyl radical or a lower alkyl radical, n is equal to zero, 1 or 2 and p is an integer from 0 to 9, m and q are equal to zero or 1.Local and spasmolytic anaesthetics.Type: GrantFiled: July 1, 1980Date of Patent: November 17, 1981Assignee: Societe Industrielle de Produits de SyntheseInventors: Dieran R. Torossian, Claude P. Roux, Gilbert G. Aubard
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Patent number: 4240981Abstract: The invention relates to a process for the preparation of a 1,2-dioxime of the general formula A--C(.dbd.NOH)--C(.dbd.NOH)--R, wherein A represents an aromatic group and R a hydrocarbyl group or a hydrogen atom, which process comprises the reaction of hydroxylamine with one or more hydroxyiminoketones of formula A--C(.dbd.O)--C(.dbd.NOH)--R or of formula A--C(.dbd.NOH)--C(.dbd.NOH)--R in the presence of a nickel compound forming a complex with the 1,2-dioxime.Type: GrantFiled: March 7, 1979Date of Patent: December 23, 1980Assignee: Shell Oil CompanyInventor: Riekert Kok
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Patent number: 4175205Abstract: Vitamin A alcohol and its lower alkanoic esters are prepared by desulphonation of corresponding sulphones with a solid potassium alcoholate of a primary or secondary lower alcohol at 10.degree. to 50.degree. C. in an anhydrous liquid hydrocarbon.Type: GrantFiled: July 25, 1977Date of Patent: November 20, 1979Assignee: Rhone-Poulenc IndustriesInventor: Jean-Pierre Decor
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Patent number: 4153804Abstract: A fluorinated vinyl ether having an ester group which has the formulaCF.sub.2 .dbd. CFOCF.sub.2 (CF(CF.sub.3)OCF.sub.2).sub.n-1 (Rf).sub.m CO.sub.2 Rwherein n represents an integer of 1 to 5; m represents 0 or 1; Rf represents a C.sub.1 -C.sub.10 bifunctional perfluoro group and R represents an alkyl group, is produced by reacting fluorinated acyl fluoride having an ester group which has the formulaFOC(CF(CF.sub.3)OCF.sub.2).sub.n (Rf).sub.m CO.sub.2 Rwith an alkali metal carbonate to produce an alkali metal salt of fluorinated carboxylic acid having an ester group which has the formulaMOOC(CF(CF.sub.3)OCF.sub.2).sub.n (Rf).sub.m CO.sub.2 Rwherein M represnts an alkali metal;And then, thermally decomposing the alkali metal salt of fluorinated carboxylic acid having an ester group.Type: GrantFiled: June 21, 1978Date of Patent: May 8, 1979Assignee: Asahi Glass Co. Ltd.Inventors: Masaaki Yamabe, Seiji Munekata, Shunichi Samejima
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Patent number: 4144395Abstract: Polyether-ester polyols are prepared in the presence of from 0.005 percent to 0.01 percent by weight (50-100 ppm) of a trialkylamine. The resulting polyols have improved color and are obtained in markedly reduced reaction times.Type: GrantFiled: December 5, 1977Date of Patent: March 13, 1979Assignee: BASF Wyandotte CorporationInventors: John R. Murphy, Louis C. Pizzini
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Patent number: 4138426Abstract: Alkyl perfluoro-.omega.-fluoroformyl esters are provided which have the formula ##STR1## wherein R is alkyl of 1-6 carbon atoms, and N IS 0-6 (PREFERABLY 0).Compounds where n is 0 are prepared by contacting SO.sub.3 with a compound of the formulaROOC--CF.sub.2 --CF.sub.2 --OR.sup.1.Compounds where n is 1-6 are prepared by contacting a compound where n is 0 with hexafluoropropylene oxide.Also provided are polymerizable monomers having the formula ##STR2## wherein Y is --COOR, --COOH, --COOM or --CN, where M is an alkali metal, ammonium or quaternary ammonium and p is 1-5, prepared from alkyl perfluoro-.omega.-fluoroformyl esters of this invention.Type: GrantFiled: January 11, 1978Date of Patent: February 6, 1979Assignee: E. I. Du Pont de Nemours and CompanyInventor: David C. England
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Patent number: 4136200Abstract: Phenylbutanol derivatives of the formula Z-C(CH.sub.3) (OH)-CH.sub.2 -Y wherein Z is 4-biphenyl or 4-phenoxyphenyl wherein the phenoxy group is unsubstituted or substituted by F, Cl or Br and Y is COOR.sup.2 or CH.sub.2 OR.sup.3 wherein R.sup.2 is H or alkyl of 1 to 6 carbon atoms and R.sup.3 is H or alkanoyl of 1 to 6 carbon atoms, and their physiologically acceptable salts, possess anti-inflammatory activity and are produced by (a) treating with a solvolyzing agent a compound of the formula Z-C(CH.sub.3) (OH)-CH.sub.2 -W or Z-CX(CH.sub.3)-CH.sub.Type: GrantFiled: June 28, 1977Date of Patent: January 23, 1979Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Erich Schacht, Werner Mehrhof, Albrecht Wild, Joachim Gante, Hans-Adolf Kurmeier
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Patent number: 4136112Abstract: The hydrogen fluoride-catalyzed carbonylation of formaldehyde to prepare glycolic acid can be carried out with a significant reduction in by-product formation and at a significantly improved rate by incorporating minor amounts of acetic acid in the reaction medium.Type: GrantFiled: June 24, 1977Date of Patent: January 23, 1979Assignee: Chevron Research CompanyInventor: Kiran R. Bakshi
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Patent number: 4133960Abstract: Novel polyfunctional compounds which may be hydrolyzed to the corresponding salts, which in turn are metal sequestering agents, are disclosed, as well as a novel method for their preparation. The compounds are the reaction product obtained from the reaction of selected salts of monoalkyl esters of maleic acid with selected active hydrogen containing compounds. These products are prepared by a reaction of the starting materials in preferably a substantially anhydrous medium at an elevated temperature.Type: GrantFiled: September 9, 1977Date of Patent: January 9, 1979Assignee: Lever Brothers CompanyInventors: Eddie N. Gutierrez, Vincent Lamberti
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Patent number: 4131740Abstract: Alkyl perfluoro-.omega.-fluoroformyl esters are provided which have the formula: ##STR1## wherein R is alkyl of 1-6 carbon atoms, and n is 0-6 (preferably 0). Compounds where n is 0 are prepared by contacting SO.sub.3 with a compound of the formula ROOC--CF.sub.2 --CF.sub.2 --OR.sup.1. Compounds where n is 1-6 are prepared by contacting a compound where n is 0 with hexafluoropropylene oxide.Type: GrantFiled: April 20, 1977Date of Patent: December 26, 1978Assignee: E. I. Du Pont de Nemours and CompanyInventor: David C. England
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Patent number: 4130658Abstract: Novel phenethylamines of the formula ##STR1## wherein X is selected from the group consisting of hydrogen, acyl of an aliphatic carboxylic acid of 2 to 6 carbon atoms and benzoyl and Y is selected from the group consisting of hydrogen and --OX and their non-toxic, pharmaceutically acceptable acid addition salts having dopaminergic stimulating activity and their preparation and novel intermediates.Type: GrantFiled: June 24, 1977Date of Patent: December 19, 1978Assignee: Roussel UclafInventors: Lucien Nedelec, Daniel Frechet, Claude Dumont
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Patent number: 4129593Abstract: Very pure S-carboxymethyl-L-cysteine is prepared by reacting L-cystine in liquid ammonia with metallic sodium to form the disodium salt of L-cysteine, evaporating the ammonia, reacting the disodium salt of L-cysteine with an aqueous solution of chloroacetic acid and precipitating the S-carboxymethyl-L-cysteine formed by acidifying the reaction mixture. There is employed 0.1 to 10 weight percent of a reducing agent based on the chloroacetic acid.Type: GrantFiled: September 14, 1977Date of Patent: December 12, 1978Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals RoesslerInventors: Alfred Maierhofer, Hans Wagner