Chalcogen Bonded Directly To Ring Carbon Of The Hetero Ring Patents (Class 549/36)
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Patent number: 8945769Abstract: An electricity storage device including a positive electrode 31, a negative electrode 32, and an electrolytic solution 29 located between the positive electrode and the negative electrode. At least one of the positive electrode 31 and the negative electrode 32 contains an electricity storage material containing a polymerization product having a tetrachalcogenofulvalene structure in a repeat unit of a main chain.Type: GrantFiled: July 31, 2009Date of Patent: February 3, 2015Assignee: Panasonic CorporationInventors: Nobuhiko Hojo, Yu Ohtsuka, Takakazu Yamamoto, Takahisa Shimizu, Takayuki Sasaki, Tomoaki Yanagida
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Patent number: 8946450Abstract: The present invention relates to substituted pterin compounds, their synthesis and use. In particular, the present invention relates to a new precursor compound and its analogs for synthesizing a new substituted pterin compound and its analogs. These new compounds are particularly suitable for treating molybdenum cofactor deficiency.Type: GrantFiled: January 7, 2013Date of Patent: February 3, 2015Assignee: Duquesne University of the Holy GhostInventors: Partha Basu, Igor Pimkov
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Publication number: 20130288985Abstract: This application discloses pharmaceutical compositions (e.g., oral, parenteral or topical ophthalmic formulations) for treating Fuchs endothelial corneal dystrophy (FECD) with one or more Nrf2 activators and/or mitochondrially targeted antioxidants. The compositions may be topically administered to the eye and are effective in the treatment of FECD. The invention further provides methods of treating FECD by in a subject in need of such treatment by topical application of one or more Nrf2 activators and/or mitochondrially of the invention.Type: ApplicationFiled: June 30, 2011Publication date: October 31, 2013Applicant: The Schepens Eye Research Institute Inc.Inventor: Ula V. Jurkunas
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Publication number: 20110306531Abstract: Novel sulfur-containing compositions comprise a polyether polysulfide or an ether polysulfide. The polyether polysulfide may be based upon an alkoxylate (an alcohol or glycol-initiated compound) that is a copolymer of at least two of ethylene oxide, propylene oxide and butylene oxide. The polyether polysulfide may alternatively be based upon a homopolymer of ethylene oxide, propylene oxide or butylene oxide. The ether polysulfide may be based upon a methoxy-capped polyglycol or an alkyl ether of 1,3-dichloro-2-propanol.Type: ApplicationFiled: June 3, 2011Publication date: December 15, 2011Inventors: Yang Cheng, Cynthia L. Rand, John B. Cuthbert
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Publication number: 20110152524Abstract: Provided is a pharmaceutical composition that contains a 1,2-dithiolthionederivative, and is effective to prevent and treat a disease caused by overactivity of a liver X receptor? (LXR?) or a sterol response element binding protein (SREBP-1). Specifically, the pharmaceutical composition includes 1,2-dithiolthione derivatives such as 4-methyl-5-(2-pyrazinyl)-1,2-dithiol-3-thione, 3-methyl-1,2-dithiol-3-thione, or 5-(6-methoxypyrazinyl)-4-methyl-1,2-dithiol-3-thione. The pharmaceutical composition is effective for preventing and treating hypertension caused by renin, aldosteronism, adrenoleukodystrophy, glomerulosclerosis, proteinuria, nephropathy, liver steatosis, hypertriglyceridemia or hyperreninemia.Type: ApplicationFiled: July 30, 2009Publication date: June 23, 2011Applicant: SNU R&DB FOUNDATIONInventors: Sang Geon Kim, Sung Hwan Ki, Seong Hwan Hwang
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Patent number: 7910568Abstract: The present invention provides new derivatives of 4- or 5-aminosalicylic acid, and a pharmaceutical composition containing these derivatives of 4- or 5-aminosalicylic acid as active ingredients, useful for the treatment of intestinal diseases such as inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS) and for the prevention/treatment of colon cancer. More particularly, these derivatives comprise a hydrogen sulfide releasing moiety linked via an azo, an ester, an anhydride, a thioester or an amide linkage to a molecule of 4- or 5-aminosalicylic acid. Furthermore, the present invention provides a process for preparing these compounds and their use for treating IBD and IBS and the prevention/treatment of colon cancer.Type: GrantFiled: March 31, 2006Date of Patent: March 22, 2011Assignee: Antibe Therapeutics Inc.Inventors: John L. Wallace, Giuseppe Cirino, Giuseppe Caliendo, Anna Sparatore, Vincenzo Santagada, Stefano Fiorucci
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Patent number: 7781592Abstract: A 1,2,4-triazole derivative of formula 1 or a non-toxic salt thereof, a preparation method thereof, and a pharmaceutical composition containing the derivative or the salt as an active ingredient are provided.Type: GrantFiled: November 25, 2003Date of Patent: August 24, 2010Assignee: CJ Cheiljedang CorporationInventors: Il Hwan Cho, Myeong Yun Chae, Young Hoon Kim, Kyu Jeong Yeon, Chun Seon Lyu, Jong Hoon Kim, Sung Hak Jung, Sang Wook Park, Hyung Chul Ryu, Ji Young Noh, Hyun Jung Park, Jie Eun Park, Young Mee Chung
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Patent number: 7763884Abstract: An organic semiconductor material represented by the following general formula (1): wherein X1 to X4 each independently represent a chalcogen atom; and at least one of R1 and R2 represents a substituent for obtaining solubility, and R1 and R2 may be connected to each other to form a ring.Type: GrantFiled: June 27, 2007Date of Patent: July 27, 2010Assignee: Sony CorporationInventors: Mao Tatsuhara, Akito Ugawa
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Patent number: 7498355Abstract: The present invention provides new derivatives of 4- or 5-aminosalicylic acid, and a pharmaceutical composition containing these derivatives of 4- or 5-aminosalicylic acid as active ingredients, useful for the treatment of intestinal diseases such as inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS) and for the prevention/treatment of colon cancer. More particularly, these derivatives comprise a hydrogen sulfide releasing moiety linked via an azo, an ester, an anhydride, a thioester or an amide linkage to a molecule of 4- or 5-aminosalicylic acid. Furthermore, the present invention provides a process for preparing these compounds and their use for treating IBD and IBS and the prevention/treatment of colon cancer.Type: GrantFiled: March 31, 2006Date of Patent: March 3, 2009Assignee: Antibe Therapeutics Inc.Inventors: John L. Wallace, Giuseppe Cirino, Giuseppe Caliendo, Anna Sparatore, Vincenzo Santagada, Stefano Fiorucci
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Patent number: 7385067Abstract: The invention relates to a process for the preparation of compounds containing at least one —CF2—O— bridge in the molecule, in which a) an acid is added onto at least one ketene dithioketal, b) the resultant bis(alkylthio)carbenium salt is reacted with at least one compound having at least one hydroxyl group in the presence of a base, c) and subsequently, preferably in situ, the resultant dithioorthoester is subjected to oxidative fluorodesulfurisation using a fluorinating agent and an oxidant to give the compound containing at least one —CF2—O— bridge in the molecule.Type: GrantFiled: June 2, 2006Date of Patent: June 10, 2008Assignee: Merck Patent GmbHInventors: Peer Kirsch, Andreas Taugerbeck, Alexander Hahn
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Patent number: 7285664Abstract: A compound having a formula selected from the group consisting of wherein the substituents are as defined in the specification. The compounds are useful as intermediates in the preparation of compounds of formula (I), which are useful for inhibiting NO synthase and regenerate antioxidants.Type: GrantFiled: June 8, 2005Date of Patent: October 23, 2007Assignee: S.C.R.A.S. Societe de Conseils de Recherches et d'Applications ScientifiquesInventors: Jeremiah Harnett, Michel Auguet
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Patent number: 7169324Abstract: Disclosed herein are a gelling agent composed of a functional amino acid compound having a tetrathiafulvalenyl group, and a production method of a gelling agent, comprising reacting a tetrathiafulvalene derivative with an amino acid derivative in the presence of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride and 4-(N,N-dimethylamino)pyridine to obtain a functional amino acid compound having a tetrathiafulvalenyl group.Type: GrantFiled: March 11, 2004Date of Patent: January 30, 2007Assignee: JSR CorporationInventors: Takashi Kato, Tetsu Kitamura, Norihiro Mizoshita, Yusuke Tochigi
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Patent number: 7038062Abstract: This invention provides a low cost technique for synthesizing cyclic trithiocarbonates by a simple one step process from epoxides that can be conducted under atmospheric pressure. This synthesis can be depicted as follows: wherein R represents a moiety selected from the group consisting of alkyl groups and aryl groups, wherein R? represents a moiety selected from the group consisting of alkyl groups, aryl groups, and hydrogen atoms, and wherein R? represents a moiety selected from the group consisting of alkyl groups, aryl groups, and hydrogen atoms, wherein the R moiety and the R? moiety can be bonded together to form a cyclic structure, with the proviso that R? represents a hydrogen atom if R? represents an alkyl group or an aryl group. In this process carbon disulfide and a thiocyanate salt, such as potassium thiocyanate, are reacted with the epoxide in an ionic liquid, such as 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim] PF6) in the presence of water to produce the cyclic trithiocarbonate.Type: GrantFiled: July 1, 2004Date of Patent: May 2, 2006Assignee: The Goodyear Tire & Rubber CompanyInventor: Dane Kenton Parker
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Patent number: 7012148Abstract: Compositions and methods for using these compositions to produce high yields of thionated compounds are provided.Type: GrantFiled: September 25, 2001Date of Patent: March 14, 2006Assignee: Trustees of Dartmouth CollegeInventor: Thomas J. Curphey
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Patent number: 6787062Abstract: The invention relates to a process for the preparation of compounds having at least one —CF2O— bridge in the molecule, which comprises initially reacting a bis(alkylthio)carbenium salt with a compound containing at least one hydroxyl group in the presence of a base followed by oxidative fluorination, preferably in situ, with a fluorinating agent and an oxidizing agent to form the compound having at least one —CF2O— bridge in the molecule.Type: GrantFiled: September 3, 2002Date of Patent: September 7, 2004Assignee: Merck Patent GmbHInventors: Peer Kirsch, Andreas Taugerbeck, Detlef Pauluth, Matthias Bremer
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Publication number: 20030181494Abstract: Novel diphenylethylene compounds and derivatives thereof containing thiazolidinedione or oxazolidinedione moieties are provided which are effective in lowering blood glucose level, serum insulin, triglyceride and free fatty acid levels in animal models of Type II diabetes. The compounds are disclosed as useful for a variety of treatments including the treatment of inflammation, inflammatory and immunological diseases, insulin resistance, hyperlipidemia, coronary artery disease, cancer and multiple sclerosis.Type: ApplicationFiled: October 8, 2002Publication date: September 25, 2003Inventors: Partha Neogi, Debendranath Dey, Satyanarayana Medicherla, Bishwajit Nag, Arthur Lee
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Publication number: 20030176714Abstract: Compositions and methods for using these compositions to produce high yields of thionated compounds are provided.Type: ApplicationFiled: May 9, 2003Publication date: September 18, 2003Inventor: Thomas J. Curphey
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Patent number: 6074744Abstract: The inventive Langmuir-Blodgett film is made of an amphiphilic organic carboxylic acid, such as a long chain fatty acid, and a tetrathiafulvalene derivative having no long chain alkyl group. For example, the long chain fatty acid comprises behenic acid, and the tetrathiafulvalene derivative comprises 4,5-ethylenedioxy-4',5'-ethylenedithio-tetrathiafulvalene or bis-ethylenedioxy-tetrathiafulvalene. Such Langmuir-Blodgett film comprises uniform and well-ordered layered structure, may be readily produced and may exhibit a high electrical conductivity.Type: GrantFiled: August 29, 1997Date of Patent: June 13, 2000Assignee: Tokyo University of Mercantile MarineInventors: Hitoshi Ohnuki, Mitsuru Izumi
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Patent number: 6046228Abstract: The present invention is directed to pharmaceutical compositions including a saturated 1,2-dithiaheterocyclic compound having antiviral activity. The present invention also provides a kit containing the pharmaceutical composition and methods of treating or preventing viral disease using the composition, as well as methods for inactivating retrovirus in a body fluid.Type: GrantFiled: January 4, 1999Date of Patent: April 4, 2000Assignee: The United States of America as represented by the Department of Health and Human ServicesInventors: William G. Rice, Robert R. Schultz, David C. Baker, Louis E. Henderson
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Patent number: 5817837Abstract: A tetrathiafulvalene derivative precursor represented by formula (1), a tetrathiafulvalene derivative represented by formula (6), and processes for producing the tetrathiafulvalene derivative precursor and the tetrathiafulvalene derivative: ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and represent organic groups that may be linked together to form a ring.Type: GrantFiled: September 21, 1993Date of Patent: October 6, 1998Assignee: Sumitomo Electric Industries, Ltd.Inventors: Harald Dietmar Muller, Yoshinobu Ueba
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Patent number: 5693460Abstract: This invention provides a silver halide photographic element comprising a silver halide emulsion in reactive association with a dioxide compound represented by the following formula: ##STR1## wherein b is C(O), C(S), C(Se), CH2 or (CH2)2; and R.sup.1 and R.sup.2 are independently H, or aliphatic, aromatic or heterocyclic groups, or R.sup.1 and R.sup.2 together represent the atoms necessary to form a five or six-membered ring or a multiple ring system. This invention further provides a method of making silver halide emulsions containing the dioxide compounds.Type: GrantFiled: June 24, 1996Date of Patent: December 2, 1997Assignee: Eastman Kodak CompanyInventor: Roger Lok
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Patent number: 5631277Abstract: Disclosed is (2-thione-1,3-dithiole 4,5-diyl) bis(thiocyanate), its preparation and its use as an antimicrobial and marine antifouling agent.Type: GrantFiled: July 10, 1996Date of Patent: May 20, 1997Assignee: The Dow Chemical CompanyInventors: Duane R. Romer, Weishi W. Wu, Ravi B. Shankar, R. Garth Pews
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Patent number: 5618835Abstract: A compound having the structure: ##STR1## pharmaceutical compositions comprising such compounds, and methods of treating inflammation or pain using such compounds.Type: GrantFiled: February 1, 1996Date of Patent: April 8, 1997Assignee: The Procter & Gamble CompanyInventors: Laurence I. Wu, John M. Janusz
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Patent number: 5530141Abstract: 2,4-Diaryl-1,3-dithiolanes; 2,4-diaryl-1,3-dioxolanes; 2,4-diaryl-1,3-oxathiolanes; and 2,5-diaryl-1,3-oxathiolanes are disclosed that reduce the chemotaxis and respiratory burst leading to the formation of damaging oxygen radicals of polymorphonuclear leukocytes during an inflammatory or immune response. The compounds exhibit this biological activity by acting as PAF receptor antagonists, by inhibiting the enzyme 5-lipoxygenase, or by exhibiting dual activity, i.e., by acting as both a PAF receptor antagonist and inhibitor of 5-lipoxygenase.A method to treat disorders mediated by PAF or leukotrienes is also disclosed, that includes administering an effective amount of one or more of the above-identified compounds or a pharmaceutically acceptable salt thereof, optionally in a pharmaceutically acceptable carrier.Type: GrantFiled: September 14, 1992Date of Patent: June 25, 1996Assignee: Center for Innovative TechnologyInventors: T. Y. Shen, David M. Goldstein
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Patent number: 5466806Abstract: Disclosed are processes for preparing compounds of the formula (I) and pharmaceutically acceptable salts or esters thereof: ##STR1## wherein R.sub.2 is a purine or pyrimidine base or an analogue or derivative thereof; and Z is S, S.dbd.O or SO.sub.2. The invention also relates to intermediates of use in the preparation of these compounds.Type: GrantFiled: March 29, 1993Date of Patent: November 14, 1995Assignee: Biochem Pharma Inc.Inventors: Bernard Belleau, deceased, Tarek Mansour, Allan Tse, Colleen A. Evans, Haolun Jin, Boulos Zacharie, Nghe Nguyen-Ba
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Patent number: 5237067Abstract: This application is directed to optoelectronic materials which are bistable organic tautomeric compositions of dithio or diseleno carbamate esters of cyclic 1,3-dithia or -diselena-2-iminium salts. Specifically, it is concerned with compounds having the formula: ##STR1## Wherein X is S or Se; wherein R or R.sub.1 are alkyl, or alkyl that together form a ring of carbon atoms; wherein An is the anion of a strong acid. These molecules are in themselves molecular-sized optoelectric switching devices.Type: GrantFiled: February 4, 1992Date of Patent: August 17, 1993Inventor: Robert R. Schumaker
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Patent number: 5175280Abstract: A thia- and/or selenafulvalenyl group-containing compound of the formula (I), ##STR1## wherein each of X.sub.1, X.sub.2, X.sub.3, X.sub.4, X'.sub.1, X'.sub.2, X'.sub.3 and X'.sub.4 is independently S or Se, Y is an electron donating or electron accepting group having a size which is not so large as to prevent molecular overlapping, m is an integer of 0 to 4, each of Z.sub.1, Z.sub.2, Z'.sub.1 and Z'.sub.2 is independently a hydrogen atom, C.sub.n H.sub.2n+1 in which n is an integer of 1 to 5, or alternatively, a combination of Z.sub.1 with Z.sub.2 and Z'.sub.1 with Z'.sub.2 is C.sub.n H.sub.2n in which n is an integer of 1 to 5, or X(C.sub.n H.sub.2n).sub.n', X in which X is S or Se and n' is an integer of 1 to 3, and each of R.sub.1, R.sub.2, R.sub.3, R'.sub.1, R'.sub.2 and R'.sub.3 is independently a hydrogen atom or C.sub.n H.sub.2n+1 in which n is an integer of 1 to 5. The compound has an electron donating nature and can be used to make electrically conductive complexes.Type: GrantFiled: June 17, 1991Date of Patent: December 29, 1992Assignee: Idemitsu Kosan Co., Ltd.Inventors: Makoto Mizutani, Kazushige Kawabata, Keiji Tanaka
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Patent number: 4927845Abstract: Anthralin analogues containing a thio-substituent, especially in one or more of the positions 2-, 7- and 10- of the anthralin ring. They may be made by reacting an anthralin derivative (e.g. 10-bromoanthralin) with a thiol or a compound containing a group convertible to a thio-group. Alternatively, a 1,8-dihydroxy anthraquinone containing a thio-substituent may be reduced. Reactive intermediates may be made by introducing one or more nuclear allylic groups into a 1,8-dihydroxy anthraquinone and then converting them into a reactive form, e.g. by epoxidation or halide addition. The intermediate can then reduced to the oxidation state corresponding to anthralin.Additional products having the 10-carbon atom of the anthralin ring as part of a heterocyclic ring, may be made by anthralins containing various substitutes thioalkyl groups as the 10-substituent.The compounds are useful for treatment of psoriasis, and may be formulated in the conventional vehicles for topical application, for example petrolatum.Type: GrantFiled: August 15, 1989Date of Patent: May 22, 1990Assignee: The Victoria University of ManchesterInventor: John M. Bruce
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Patent number: 4900842Abstract: The invention pertains to organic compounds of the tetrahiafulvalene type made amphiphillic by substitution of the radicals R.sup.1 and R.sup.2 meeting one of the following conditions:R.sup.1 is a hydrophilic group and R.sup.2 is a hydrophobic group,R.sup.1 is a hydrophobic group and R.sup.2 is a hydrophilic group,R.sup.1 is an aromatic group and R.sup.2 is a group having a long carbon-containing chain with a hydrophobic nature and a hydrophilic end.These organic compounds can form Langmuir-Blodgett films which are made anisotropically conductive by doping.Type: GrantFiled: February 9, 1988Date of Patent: February 13, 1990Assignee: Thomson-CSFInventors: Philippe Robin, Albert Robert, Francoise Bertho, Patrick Batail
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Patent number: 4763966Abstract: An infrared absorbent comprising a metal complex compound prepared by coordinating two thiorato bidentate ligands to a center metal and neutralizing a complex ion with a cation. With use of the infrared absorbent, there is provided an infrared absorbing material capable of absorbing a far-infrared or near-infrared light having a wavelength of 700-1500 nm which has a high transmittance of a visible light and a good fastness to heat and light. The infrared absorbing material can be used for an infrared absorbing material such as an optical filter or other various objects.Type: GrantFiled: July 15, 1985Date of Patent: August 16, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshiaki Suzuki, Gouichi Hayashi
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Patent number: 4760078Abstract: A novel 1,2-dithiol-3-thione derivative which has an immunomodulating property, which is expressed by the formula (I): ##STR1## wherein R denotes hydrogen, halogen, lower alkoxy group, lower alkyl group, amino group, lower alkyl-substituted amino group or lower alkoxycarbonyl group.Type: GrantFiled: March 5, 1987Date of Patent: July 26, 1988Assignee: Mitsui Toatsu Chemicals Inc.Inventors: Itaru Yamamoto, Akira Matsubara, Kanji Tomiya, Osamu Mizuno, Mitsuhiro Sakaguchi, Mikio Kumakura
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Patent number: 4691028Abstract: A fulvalene derivative represented by formula (1) below. ##STR1## where A.sup.1 -A.sup.8 are at least one atom or a combination of two or more atoms selected from S atom, Se atom, and Te atom; and R.sup.1 -R.sup.4 are alkyl or alkene having 3 to 22 carbon atoms.The fulvalene derivative of this invention has electric conductivity as it is at normal temperature and under normal pressure. It is useful as a semiconductor, which has an electrical conductance greater than 10.sup.-9 Scm.sup.-1 and a minimum specific resistance of 10.sup.5 .OMEGA..multidot.cm order.Type: GrantFiled: April 23, 1986Date of Patent: September 1, 1987Assignee: Ajinomoto Co., Inc.Inventors: Hiroo Inokuchi, Gunji Saito, Kazuhiko Seki, Takehiko Mori
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Patent number: 4638064Abstract: Unsaturated heterocyclic carbonyl-containing compounds, such as 2-oxathiolone, are prepared by the oxylation of saturated heterocyclic carbonyl-containing precursors of the above compounds in a C.sub.1-4 alcohol or carboxylic acid solvent in the presence of a supporting electrolyte followed by dehydroxylation of the oxylated intermediate.The products formed may be polymerized or copolymerized with other ethylenically unsaturated monomers to prepared resins, films, etc. or they may be employed as reaction intermediates.Type: GrantFiled: April 1, 1985Date of Patent: January 20, 1987Assignee: The Dow Chemical CompanyInventors: Pen-Chung Wang, James M. Renga
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Patent number: 4602095Abstract: Novel 3-hydroxy-4-alkyloxphenyl heterocyclic aromatic carboxylate compounds particularly well suited as sweeteners in foodstuff.Type: GrantFiled: December 29, 1983Date of Patent: July 22, 1986Assignee: General Foods CorporationInventors: Paul R. Zanno, Ronald E. Barnett, Jed A. Riemer
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Patent number: 4578220Abstract: A novel charge transfer complex of an N,N'-biscyanoquinone bisimine of the formula ##STR1## and a fulvalene derivative of the formula ##STR2## where, in formula I, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another are --H, --CH.sub.3, --C.sub.2 H.sub.5, --OCH.sub.3, --OC.sub.2 H.sub.5, --Cl and/or --Br, and one of the radicals R.sup.1 and R.sup.2 and/or one of the radicals R.sup.3 and R.sup.4 may furthermore be phenyl or tert.-butyl, or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4 together form ##STR3## and the fused-on aromatic ring is unsubstituted or substituted, and, in formula (II), R.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently of one another are each --H, --CH.sub.3, --C.sub.2 H.sub.5, phenyl, methylphenyl or methoxyphenyl, or R.sup.5 and R.sup.6 and/or R.sup.7 and R.sup.8 together form ##STR4## where n=3, 4 or 5, ##STR5## and X and Y indendently of one another are each S or Se.Type: GrantFiled: October 18, 1984Date of Patent: March 25, 1986Assignee: BASF AktiengesellschaftInventors: Siegfried Huenig, Alexander Aumueller
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Patent number: 4517010Abstract: There is provided a new class of derivatives of 2-nitro-5-(substituted-phenoxy) benzoyl compounds that have pre- and post-emergence herbicidal activity. The derivatives include certain substituted phenyl esters, phenyl thioesters; heterocyclic esters; substituted alkyl and alkylthio esters; carbonates and thiocarbonates; benzoyl phosphonates; substituted alkanones and substituted amides.Type: GrantFiled: April 15, 1983Date of Patent: May 14, 1985Assignee: Rhone-Poulenc Inc.Inventor: Robert J. Theissen
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Patent number: 4511464Abstract: The invention is a process of concentrating sulfide ores, which comprises subjecting a sulfide ore, in the form of a pulp, to a flotation process in the presence of a flotation collector for the sulfides comprising a 1,3-oxathiolane-2-thione or a 1,3-dithiolane-2-thione.Type: GrantFiled: July 22, 1983Date of Patent: April 16, 1985Assignee: The Dow Chemical CompanyInventor: Roger W. Bergman
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Patent number: 4450217Abstract: Novel chalcogenopentalene compounds having a tellurium atom in the 6a position, and methods of making chalcogenopentalenes having a tellurium or a selenium atom in the 6a position are disclosed. The chalcogenopentalene compounds are useful as sensitizers in electrophotographic compositions and elements containing an electron donor and as charge emitters in multilayer photoconductive elements.Type: GrantFiled: March 15, 1983Date of Patent: May 22, 1984Assignee: Eastman Kodak CompanyInventors: Michael R. Detty, Jerome H. Perlstein
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Patent number: 4447623Abstract: An improved process for preparation of 4,5-dichloro-1,2-dithia-cyclopenten-3-one of the formula ##STR1## by reacting hexachloroprene with sulphur at elevated temperatures, wherein the improvement comprises hydrolyzing by-product sulphur chlorides by conducting the reaction in the presence of water.Type: GrantFiled: September 24, 1982Date of Patent: May 8, 1984Assignee: Cassella AktiengesellschaftInventors: Rolf Muller, Herbert Wille
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Patent number: 4315027Abstract: A novel class of chemical compounds useful as pesticides consists of symmetrical and asymmetrical N,N'-sulfinyldicarbamate esters. The preparation of these compounds and their formulation to control insects are exemplified.Type: GrantFiled: May 9, 1980Date of Patent: February 9, 1982Assignee: The Regents of the University of CaliforniaInventors: Mohamed A. H. Fahmy, Tetsuo R. Fukuto
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Patent number: 4264625Abstract: Bis-[N-Alkyl-N-arylcarbamate] sulfide compounds exhibit outstanding miticidal and insecticidal activity, coupled with substantially reduced mammalian toxicity, and phytotoxicity.Type: GrantFiled: October 26, 1978Date of Patent: April 28, 1981Assignee: Union Carbide CorporationInventor: Themistocles D. J. D'Silva
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Patent number: 4190727Abstract: The process of reacting dithiolium compounds with an hydroxy compound such as water, alcohols, etc., under basic conditons so as to substitute the hydroxy constituent into the 3 or 5 position of the thiolium ring thus replacing the positive ionic valency with a covalent bond; and to the dithiole compositions formed and uses therefor, for example as corrosion inhibitors, etc. The process can be reversed to reform the original dithiolium compounds by reacting the dithiole compound under acidic conditions.Type: GrantFiled: May 13, 1976Date of Patent: February 26, 1980Assignee: Petrolite CorporationInventor: Bernardus A. Oude Alink