And Sulfur Or Oxygen Bonded Indirectly To Phosphorus Patents (Class 568/15)
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Patent number: 4956055Abstract: A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each Ar is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl;the x bonds and the y bonds are attached to adjacent carbon atoms on the ring structures;each R, when present as a substituent, is independently selected from alkyl, alkoxy, aryloxy, aryl, aralyky, alkaryl, alkoxyalky, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl, cyano or formyl radicals;n is a whole number in the range of 0-4 where Ar is phenyl; 0-6 where Ar is naphthyl; and 0-8 where Ar is phenanthryl or anthracenyl;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic radicals, or substituted derivatieves thereof;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.Type: GrantFiled: July 24, 1989Date of Patent: September 11, 1990Assignee: Eastman Kodak CompanyInventor: Thomas A. Puckette
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Patent number: 4954227Abstract: A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each AR is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl;the x bonds and the y bonds are attached to adjacent carbon atoms on the ring structures;each R, when present as a substituent, is independently selected from alkyl, alkoxy, aryloxy, aryl, aralkyl, alkaryl, alkoxyalkyl, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl, cyano or formyl radicals;n is a whole number in the range of 0-4 were Ar is phenyl; 0-6 where Ar is naphthyl; and 0-8 where Ar is phenanthryl or anthracenyl;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic radicals, or substituted derivatives thereof;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.Type: GrantFiled: July 24, 1989Date of Patent: September 4, 1990Assignee: Eastman Kodak CompanyInventor: Thomas A. Puckette
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Patent number: 4929393Abstract: Various 1,4-disubstituted-2,3,5,6-tetrohydroxy-1,4-diphosphorinanes, their oxides and sulfides, methods for the production thereof, and flame-retarded compositions of matter containing them, are disclosed.Type: GrantFiled: May 22, 1989Date of Patent: May 29, 1990Assignee: Cyanamid Canada Inc.Inventors: Allan J. Robertson, James B. Gallivan
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Patent number: 4879416Abstract: The process for preparing a bidentate ligand comprising the steps,(1) contacting with ozone under ozonolysis conditions a suspension in a hydroxylic reaction medium of phenanthrene or a phenanthrene derivative to form an ozonated intermediate,(2) contacting said ozonated intermediate with a reducing agent under conditions appropriate to form the corresponding diol,(3) contacting said diol with a latent displaceable functional group under conditions appropriate to convert the diol to the corresponding difunctional biaryl compound, and(4) contacting said difunctional biaryl compound, with an anion of N, P, As, Sb or Bi under conditions appropriate to form the desired bidentate ligand.Type: GrantFiled: November 23, 1987Date of Patent: November 7, 1989Assignee: Eastman Kodak CompanyInventors: Thomas A. Puckette, Thomas J. Devon, Gerald W. Phillips, Jerome L. Stavinoha
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Patent number: 4879008Abstract: A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each Ar is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl;the x bonds and y bonds are attached to adjacent carbon atoms on the ring structure;each R, when present as a substituent, is independently selected from alkyl, alkoxy, aryloxy, aryl, aralkyl, alkaryl, alkoxyalkyl, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl, cyano or formyl radicals;n is a whole number in the range of 0-4 were Ar is phenyl; 0-6 where Ar is naphthyl; and 0-8 where Ar is phenanthryl or anthracenyl;each R.sub.1 and R.sub.2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic radicals, or substituted derivatives thereof;each R.sub.3 and R.sub.4 is independently selected from hydrogen and the R.sub.Type: GrantFiled: November 9, 1987Date of Patent: November 7, 1989Assignee: Eastman Kodak CompanyInventor: Thomas A. Puckette
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Patent number: 4855507Abstract: Various 1,4-disubstituted-2,3,5,6-tetrahydroxy-1,4-diphosphorinanes, their oxides and sulfides, methods for the production thereof, and flame-retarded compositions of matter containing them, are disclosed.Type: GrantFiled: February 13, 1989Date of Patent: August 8, 1989Assignee: American Cyanamid CompanyInventors: Allan J. Robertson, James B. Gallivan
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Patent number: 4792632Abstract: Bisacylphosphine oxides of the general formula ##STR1## wherein R.sup.1 stands, for example, for a straight-chain or branched C.sub.1-18 alkyl radical,a cyclohexyl, cyclopentyl, phenyl, naphthyl, or biphenylyl radical,a cyclopentyl, cyclohexyl, phenyl, naphthyl, or biphenylyl radical substituted by F, Cl, Br, I, C.sub.1 -C.sub.12 alkyl and/or C.sub.1 -C.sub.12 alkoxyl, oran S or N-containing 5-membered or 6-membered heterocyclic ring, andR.sup.2 and R.sup.3, which are the same or different, stand for a cyclohexyl, cyclopentyl, phenyl, naphthyl, or biphenylyl radical,a cyclopentyl, cyclohexyl, phenyl, naphthyl, or biphenylyl radical substituted by F, Cl, Br, I, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxyl, oran S or N-containing 5-membered or 6-membered heterocyclic ring; orR.sup.2 and R.sup.3 are joined to form a ring which contains from 4 to 10 carbon atoms and which may be substituted by 1 to 6 C.sub.1-4 alkyl radicals.The compounds are prepared by oxidation of the corresponding bisacylphosphines.Type: GrantFiled: November 17, 1987Date of Patent: December 20, 1988Assignee: ESPE Fabrik Pharmazeutischer Praparate GmbHInventors: Klaus Ellrich, Christian Herzig
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Patent number: 4791139Abstract: A compound of formula: ##STR1## wherein W represents one or more substituents selected from halo, alkyl, alkoxy, alkoxyalkyl, haloalkyl and haloalkoxy or W represents a bidentate group linking adjacent carbon atoms selected from alkylene and alkylenedioxy; Y is a group of formula ##STR2## wherein X is a group of formula --(CF.sub.2).sub.n R.sup.3, where R.sup.3 is selected from hydrogen, chloro and fluoro, and n is one or two, R.sup.1 is selected from hydrogen, chloro, fluoro and hydroxy and R.sup.2 is selected from methyl, cyano, ethynyl and hydrogen; Q is selected from carbon bearing a hydrogen atom and nitrogen; and Z represents one or more substituents selected from fluoro, benzyl, phenoxy, chlorophenoxy, fluorophenoxy and bromophenoxy, or any isomer thereof. Processes for preparing these compounds and intermediates for use therein, insecticidal compositions containing these compounds and the use thereof are also disclosed.Type: GrantFiled: February 25, 1987Date of Patent: December 13, 1988Assignee: Imperial Chemical Industries PLCInventors: Michael J. Bushell, Robin A. E. Carr
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Patent number: 4753912Abstract: A novel catalyst comprises (i) an organophosphorus-containing compound, (ii) a compound, which is reactable in the Michael reaction, and contains both (a) a double or triple bond and (b) an electron withdrawing group and (iii) an alcohol or a mixture of an alcohol and a solvent. The novel catalyst may be generated from a novel catalyst precursor. The catalyst may be used to transesterify carboxylic or carbonic acid esters, to produce formate esters from alcohols and carbon monoxide and to produce formamides from amines and carbon monoxide.Type: GrantFiled: May 3, 1984Date of Patent: June 28, 1988Assignee: BP Chemicals LimitedInventor: Michael J. Green
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Patent number: 4745225Abstract: Branched phosphorus-containing polyarylene ethers comprising repeating units of the structure ##STR1## wherein q and z are 0 or 1; andm has an average value from 1 to 10,statistically alternating with branching points units of the structures ##STR2## p being an integer from 1 to 4, and methods for making such ethers by polycondensing appropriate aromatic bifunctional compounds in the presence of further condensable compounds having more than two reactive groups.Type: GrantFiled: June 4, 1986Date of Patent: May 17, 1988Assignee: Rohm GmbHInventors: Werner Ude, Joachim Knebel
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Patent number: 4737593Abstract: Bisacylphosphine oxides of the general formula ##STR1## wherein R.sup.1 stands, for example, for a straight-chain or branched C.sub.1-18 alkyl radical,a cyclohexyl, cyclopentyl, phenyl, naphthyl, or biphenylyl radical,a cyclopentyl, cyclohexyl, phenyl, naphthyl, or biphenylyl radical substituted by F, Cl, B, I, C.sub.1 -C.sub.12 alkyl and/or C.sub.1 -C.sub.12 alkoxyl, oran S or N-containing 5-membered or 6-membered heterocyclic ring, andR.sup.2 and R.sup.3, which are the same or different, stand for a cyclohexyl, cyclopentyl, phenyl, naphthyl, or biphenylyl radical,a cyclopentyl, cyclohexyl, phenyl, naphthyl, or biphenylyl radical substituted by F, Cl, Br, I, C.sub.1-4 alkyl and/or C.sub.1-4 alkoxyl, oran S or N-containing 5-membered or 6-membered heterocyclic ring; orR.sup.2 and R.sup.3 are joined to form a ring which contains from 4 to 10 carbon atoms and which may be substituted by 1 to 6 C.sub.1-4 alkyl radicals.The compounds are prepared by oxidation of the corresponding bisacylphosphines.Type: GrantFiled: November 25, 1985Date of Patent: April 12, 1988Assignee: Fabrik Pharmazeutischer PraparateInventors: Klaus Ellrich, Christian Herzig
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Patent number: 4720589Abstract: A process for the preparation of phenylene-bis-phosphineoxide compounds by reacting in a polar aprotic solvent a difluorobenzene compound with a compound of the general formula ##STR1## wherein Me is an alkali metal, R.sup.1 and R.sup.2 each independently represents an alkyl-, aryl-, alkaryl- or aralkyl group, or R.sup.1 and R.sup.2 together form an alkylene group.Type: GrantFiled: March 17, 1987Date of Patent: January 19, 1988Assignee: Shell Oil CompanyInventors: Richard L. Wife, Johannes J. M. Snel, Aart B. Van Oort
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Patent number: 4715882Abstract: The invention relates to certain substituted phenoxypropionaldehyde derivatives, formulations of said derivatives and the use thereof for preemergence or postemergence control of noxious plants, i.e., weeds.Type: GrantFiled: October 15, 1986Date of Patent: December 29, 1987Assignee: PPG Industries, Inc.Inventor: Muppala S. Raju
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Patent number: 4698448Abstract: Compounds of the formula ##STR1## wherein R is lower alkyl or aryl, Y is oxygen or sulfur, m is 0 or 1, Ar is arylene, and X is halogen, methyl, or aryloxy, or polymers containing repeating units of this kind are prepared from a compound R--P(Y).sub.r Cl.sub.2, where r is 0 or 1 but is never greater than m, by reaction with one or two molar parts of a compound H--ArX in the presence of a Friedel-Crafts catalyst.Type: GrantFiled: July 2, 1985Date of Patent: October 6, 1987Assignee: Rohm GmbHInventors: Werner Ude, Siegmund Besecke, Achim Riemann, Guenther Schroeder
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Patent number: 4683338Abstract: A process for the preparation of phenylene-bis-phosphineoxide compounds by reacting in a polar aprotic solvent a difluorobenzene compound with a compound of the general formula ##STR1## wherein Me is an alkali metal, R.sup.1 and R.sup.2 each independently represents an alkyl-, aryl-, alkaryl- or aralkyl group, or R.sup.1 and R.sup.2 together form an alkylene group.Type: GrantFiled: November 13, 1985Date of Patent: July 28, 1987Assignee: Shell Oil CompanyInventors: Richard L. Wife, Johannes J. M. Snel, Aart B. Van Oort
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Patent number: 4668824Abstract: Essentially pure tri-(m-sulfophenyl)-phosphine, well suited as a ligand for the formation of, e.g., rhodium-based olefin hydroformylation catalysts, is facilely prepared by (i) sulfonating triphenylphosphine with oleum, H.sub.2 SO.sub.4 /SO.sub.3, wherein the temperature of sulfonation ranges from 15.degree. to about 25.degree. C., the molar ratio of SO.sub.3 /triphenylphosphine is at least 8, and the amount by weight of SO.sub.3 in the mixture (SO.sub.3 +H.sub.2 SO.sub.4 +triphenylphosphine) at the beginning of said sulfonation reaction is at least 33%; and (ii) thence terminating said sulfonation reaction via hydrolysis of the reaction mixture.Type: GrantFiled: July 30, 1984Date of Patent: May 26, 1987Assignee: Rhone-Poulenc RecherchesInventors: Jean Jenck, Didier Morel
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Patent number: 4621123Abstract: Novel phosphorus-containing polyglycidyl ethers capable of forming a cured epoxy resin having a high flame retardancy and excellent in heat resistance characteristics such as heat deterioration resistance, glass transition temperature, thermal deformation temperature and the like; a process for producing said phosphorus-containing polyglycidyl ethers; phosphorus-containing polyphenol compounds used in production of said phosphorus-containing polyglycidyl ethers; and a process for producing said phosphorus-containing polyphenol compounds.Type: GrantFiled: December 16, 1985Date of Patent: November 4, 1986Assignee: Sumitomo Chemical Company, LimitedInventors: Hisao Takagishi, Kazunori Kawakami, Kunimasa Kamio, Khoichi Okuno
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Patent number: 4613699Abstract: A phosphine oxide composition represented by the formula: ##STR1## wherein P is phosphorus, O is oxygen, A is an alkylene chain of 2 to 12 carbon atoms, Z is a polar group, n is 1 or 2, and R is an ethylenically unsaturated alicyclic hydrocarbon or alcohol.Type: GrantFiled: March 1, 1985Date of Patent: September 23, 1986Assignee: FMC CorporationInventor: Joseph Green
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Patent number: 4542023Abstract: Compounds of the formula: ##STR1## wherein: R.sub.1 =H, OH, alkyl (C.sub.1 -C.sub.4) optionally substituted by halogen, OH or NHOH; optionally substituted phenyl; or alkoxy (C.sub.1 -C.sub.4);R.sub.2 and R.sub.3 =alkyl (C.sub.1 -C.sub.5) or optionally substituted phenyl or together=--(CH.sub.2).sub.m --, m=4 or 5;R.sub.4 =alkyl (C.sub.1 -C.sub.18), alkenyl (C.sub.2 -C.sub.18) or optionally substituted benzyl or phenyl; andn=0 or 1. are agriculturally useful as fungicides or bactericides for protecting plants.Type: GrantFiled: January 31, 1984Date of Patent: September 17, 1985Assignee: Rhone-Poulenc AgrochimieInventors: Guy Lacroix, Claude Anding, Andree Viricel
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Patent number: 4526776Abstract: An hepatobiliary imaging agent is disclosed which is a cationic complex of Tc-99m, a cyanate or thiocyanate ion, and a mono or polydentate organic ligand having one or more donor atoms, each with a free-electron pair available for accepting a proton or for complexing with Tc-99m to form a cationic complex. These complexes can provide images of the hepatobiliary transit in as little as ten minutes.Type: GrantFiled: April 15, 1983Date of Patent: July 2, 1985Assignee: E. I. du Pont de Nemours & CompanyInventors: Vinayakam Subramanyam, Algis Rajeckas
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Patent number: 4522693Abstract: Acylphosphine sulfides of the formula ##STR1## where R.sup.1 is alkyl, cycloalkyl or an unsubstituted or substituted phenyl, naphthyl or heterocyclic radical; R.sup.2 has the meaning of R.sup.1 and can be identical to or different from R.sup.1, or is alkoxy, unsubstituted or substituted phenoxy or phenoxyalkyl, or R.sup.1 or R.sup.2 are linked together to form a ring, which may contain further alkyl substituents and fused-on benzene rings; R.sup.3 is alkyl, a cycloaliphatic radical, substituted phenyl, an unsubstituted or substituted naphthyl or heterocyclic radical or the group ##STR2## where X is unsubstituted or substituted phenylene or an aliphatic or cycloaliphatic divalent radical; and where one or more of R.sup.1, R.sup.2 and R.sup.3 may be olefinically unsaturated.These acylphosphine sulfides can be prepared from acylphosphines and sulfur and can be used as photoinitiators in photopolymerizable compositions.Type: GrantFiled: June 2, 1983Date of Patent: June 11, 1985Assignee: BASF AktiengesellschaftInventors: Andreas Henne, Anton Hesse, Guenter Heil, Gunnar Schornick
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Patent number: 4512967Abstract: A cationic lipophilic complex of technetium is disclosed wherein all of the coordination positions of the technetium atom are filled with a neutral donor atom having a pair of electrons available for forming a coordinate bond with technetium. The donor atoms are provided by target-seeking ligands or salts thereof, said ligands having the following structure of one of formulas I, II or III. Such complexes are useful for imaging heart and hepatobiliary tissues.Type: GrantFiled: August 2, 1982Date of Patent: April 23, 1985Assignee: E. I. Du Pont de Nemours and CompamyInventor: Karen E. Linder
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Patent number: 4507247Abstract: There are provided novel sulfonated Group Va ylides defined by the following Formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.Type: GrantFiled: February 25, 1983Date of Patent: March 26, 1985Assignee: Gulf Research & Development CompanyInventors: David L. Beach, James J. Harrison
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Patent number: 4497790Abstract: The present invention relates to methods for making cationic radiodiagnostic agents and, in particular, to methods for preparing .sup.99m Tc-labelled cationic radiodiagnostic agents.Type: GrantFiled: September 3, 1982Date of Patent: February 5, 1985Assignee: E. I. du Pont de Nemours and Company, Inc.Inventor: Manuel S. Rodriguez
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Patent number: 4492805Abstract: Difficultly flammable polyarylene ether resins containing phosphorus having the structure ##STR1## and methods for making the same.Type: GrantFiled: January 26, 1983Date of Patent: January 8, 1985Assignee: Rohm GmbHInventors: Siegmund Besecke, Gunter Schroder, Werner Ude, Winfried Wunderlich
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Patent number: 4485262Abstract: s-Butyl bis(3-hydroxypropyl) phosphine oxide, useful as a flame retardant in plastic compositions, is described.Type: GrantFiled: May 26, 1982Date of Patent: November 27, 1984Assignee: FMC CorporationInventor: Diza P. Braksmayer
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Patent number: 4482733Abstract: An improved process for preparing diaryl esters of dicarboxylic acids is disclosed, in which the esterification reaction is optimized by gradually increasing the temperature at which the reaction is being conducted according to a predetermined pattern. The temperature increase should be a function of the degree of esterification. The diaryl esters so prepared are useful in making linear polyesters.Type: GrantFiled: September 24, 1982Date of Patent: November 13, 1984Assignee: Occidental Chemical CorporationInventor: Gautam R. Ranade
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Patent number: 4482732Abstract: An improved process for preparing diaryl esters of dicarboxylic acids is disclosed, in which the esterification reaction is optimized by removing water and other by-products of the reaction according to a predetermined pattern. The removal of water and other by-products of the esterification reaction is most easily carried out by a distillation means, and the rate of removal is controlled by varying the reflux ratio in the distillation means during the course of the esterification reaction. The diaryl esters so prepared are useful in making linear polyesters.Type: GrantFiled: September 24, 1982Date of Patent: November 13, 1984Assignee: Occidental Chemical CorporationInventor: Gautam R. Ranade
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Patent number: 4473710Abstract: The invention relates to the synthesis of tertiary phosphine oxides and also to certain tertiary phosphine oxides.According to the invention, an organic phase containing a halogenomethyl derivative, an hydroxymethylphosphine oxide and a phase transfer catalyst is reacted, in an organic medium, with an aqueous phase containing an inorganic base. The halogenomethyl derivative can be a micromolecule or a macromolecule.Tertiary phosphine oxides are substances which are useful, in particular, in fireproofing, in hydrometallurgy and in the field of plant protection.Type: GrantFiled: June 11, 1982Date of Patent: September 25, 1984Assignee: Societe Nationale des Poudres et ExplosifsInventors: Jean-Claude C. G. Gautier, Sammy H. Chevalier, Claude R. A. Soriaux
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Patent number: 4451450Abstract: A normally solid, hydrophilic compound capable of binding with Tc-99m to form a cationic complex is provided. The compound has a formula selected from: ##STR1## wherein: R, R', R", R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each independently selected from hydrogen; or substituted or unsubstituted alkyl, alkylene, aryl, alkylaryl, arylalkyl, monocycloalkyl, polycycloalkyl, heterocyclic and carbocyclic groups; and R plus R.sup.i in formula (A) may be taken together to form a cyclic compound;A, A', A", A.sup.1, A.sup.2, A.sup.3, A.sup.4, A.sup.5 and A.sup.6 are independently neutral functional elements, each having a free electron pair available for accepting a proton to provide a charged ligand and having the capability of complexing with Tc-99m to form a cationic complex;Y.sup.1, Y.sup.2, Y.sup.3, Y.sup.4, Y.sup.5 and Y.sup.Type: GrantFiled: October 15, 1981Date of Patent: May 29, 1984Assignee: New England Nuclear CorporationInventor: Vinayakam Subramanyam
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Patent number: 4451664Abstract: An improved process for preparing diaryl esters of a monohydroxy aromatic compound with dicarboxylic acids is disclosed, in which the esterification reaction is optimized by continuously removing water and/or other by-products of the reaction from the reactor, while supplying to the reactor a make-up amount of the monohydroxy aromatic compound containing no more than about 100 ppm of water. The make-up stream may be obtained by stripping the by-product stream of water and other by-products of the reaction.Type: GrantFiled: September 24, 1982Date of Patent: May 29, 1984Assignee: Occidental Chemical CorporationInventor: Gautam R. Ranade
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Patent number: 4429161Abstract: Process for producing organic tertiary polyphosphine monooxides which comprises reacting an organic tertiary polyphosphine with an organic monofunctional alkylating agent to form an intermediate monophosphonium salt of the polyphosphine starting material and then hydrolyzing the salt so produced to the desired polyphosphine monooxide product.Type: GrantFiled: August 17, 1981Date of Patent: January 31, 1984Assignee: Union Carbide CorporationInventors: Anthony G. Abatjoglou, Louis A. Kapicak
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Patent number: 4407759Abstract: Onium salts of Group VIa elements having an MF.sub.6.sup.- anion, where M is selected from P, As and Sb, have been found to be photo active under ultraviolet light. These onium salts can be employed as cationic photoinitiators when used with a variety of organic resins and cyclic organic compounds.Type: GrantFiled: December 10, 1981Date of Patent: October 4, 1983Assignee: General Electric CompanyInventor: James V. Crivello
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Patent number: 4394322Abstract: There are provided novel Group VA ylides defined by the following Formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.Type: GrantFiled: November 25, 1980Date of Patent: July 19, 1983Assignee: Gulf Research & Development CompanyInventors: David L. Beach, James J. Harrison
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Patent number: 4377653Abstract: Mixed ether compositions containing oligomers of polyhydroxyalkyl phosphine oxide are prepared by heating a polyhydroxyalkyl phosphine oxide in the presence of an acid catalyst at temperatures within the range of from about 139.degree. C. to about 200.degree. C. and removing water from the reaction mixture. When the reaction is conducted in the presence of an aliphatic, cycloaliphatic or aromatic alcohol having one or more hydroxyl groups mixed phosphine oxide ethers of the added alcohol are formed. The mixed ether compositions of the present invention are useful fire retardant additives.Type: GrantFiled: January 30, 1981Date of Patent: March 22, 1983Assignee: FMC CorporationInventor: Edward R. Fretz, Jr.
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Patent number: 4377529Abstract: There are provided novel sulfonated group Va ylides defined by the following Formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.Type: GrantFiled: November 24, 1980Date of Patent: March 22, 1983Assignee: Gulf Research & Development CompanyInventors: David L. Beach, Harrison, James J.
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Patent number: 4377528Abstract: There are provided novel salts defined by the following Formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.Type: GrantFiled: November 24, 1980Date of Patent: March 22, 1983Assignee: Gulf Research & Development CompanyInventors: David L. Beach, James J. Harrison
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Patent number: 4376870Abstract: The invention is a new family of phosphine compounds which can be used to make optically active metal coordination complex catalysts which combine high efficiency with a capability of performing rapidly (high efficiency and rapidly being established from Tables I, II and III as being greater than 75% efficiency and in times of not more than a few hours, preferably less than one hour) in water and thus avoiding solvent recovery and loss problems. The catalysts can be used in some alcoholic mediums as well as in some aqueous mediums. These catalysts are useful in catalytic asymmetric hydrogenation of some olefinic compounds. The new phosphine compounds are made from novel phosphine oxides.Type: GrantFiled: December 5, 1980Date of Patent: March 15, 1983Assignee: Monsanto CompanyInventors: William C. Christopfel, William S. Knowles
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Patent number: 4346236Abstract: Tertiary-alkyl phosphines, such as tris-(3-hydroxypropyl) phosphine may be oxidized by heating in the presence of water and between about 0.1 and about 10% by weight of an acid catalyst at a temperature above about 100.degree. C.Type: GrantFiled: February 9, 1981Date of Patent: August 24, 1982Assignee: FMC CorporationInventor: Fui-Tseng H. Lee
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Patent number: 4345059Abstract: Epoxy resins are rendered fire retardant by the addition thereto of a 3-hydroxyalkylphosphine oxide. Other halogen containing flame retardants may or may not be present in the composition. Mixtures containing a brominated epoxide and/or a halogenated phosphine oxide provide a high level of flame retardance at low levels of the additive. The epoxy resins may be heat cured in the presence of an acid anhydride or amine to form a polymer having the phosphine oxide incorporated in the polymer molecule.Type: GrantFiled: May 18, 1981Date of Patent: August 17, 1982Assignee: FMC CorporationInventors: Edward R. Fretz, Jr., Joseph Green
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Patent number: 4341772Abstract: S-(Diarylamino)thiophosphates are useful as miticides, insecticides, fungicides and ovicides.Type: GrantFiled: May 5, 1980Date of Patent: July 27, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Gary D. Grantham
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Patent number: 4341696Abstract: Glass filled thermoplastic polyamide polymers such as nylon 6/6 are rendered fire retardant by the addition of an effective amount of a tris-(3-hydroxyalkyl) phosphine oxide such as tris-(3-methyl-3-hydroxypropyl) phosphine oxide.Type: GrantFiled: January 28, 1980Date of Patent: July 27, 1982Assignee: FMC CorporationInventors: Diza P. Braksmayer, Syed N. Hussain
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Patent number: 4324744Abstract: Acylphosphine oxide compounds of the general formula ##STR1## where R.sup.1 is alkyl, cyclohexyl, cyclopentyl, aryl which is unsubstituted or substituted by halogen, alkyl or alkoxy, or an S-containing or N-containing five-membered or six-membered heterocyclic radical,R.sup.2 has one of the meanings of R.sup.1 (but R.sup.1 and R.sup.2 may be identical or different), or is alkoxy, aryloxy or aralkoxy, or R.sup.1 and R.sup.2 together from a ring, andR.sup.3 is straight-chain or branched alkyl of 2 to 18 carbon atoms, a cycloaliphatic radical of 3 to 12 carbon atoms, phenyl or naphthyl which are alkyl-, alkoxy- or thioalkoxy-substituted, or an S-containing or N-containing five-membered or six-membered heterocyclic radical, and may contain additional functional groups, or is the group ##STR2## where R.sup.1 and R.sup.2 have the above meanings and X is phenyl or an aliphatic or cycloaliphatic divalent radical of 2 to 6 carbon atoms,and one or more of the radicals R.sup.1 to R.sup.Type: GrantFiled: May 9, 1980Date of Patent: April 13, 1982Assignee: BASF AktiengesellschaftInventors: Peter Lechtken, Ingolf Buethe, Anton Hesse
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Patent number: 4298738Abstract: Acylphosphine oxide compounds of the general formula ##STR1## where R.sup.1 is alkyl, cyclohexyl, cyclopentyl, aryl which is unsubstituted or substituted by halogen, alkyl or alkoxy, or an S-containing or N-containing five-membered or six-membered heterocyclic radical,R.sup.2 has one of the meanings of R.sup.1 (but R.sup.1 and R.sup.2 may be identical or different) or is alkoxy, aryloxy or aralkoxy, or R.sup.1 and R.sup.2 together form a ring andR.sup.3 is an at least disubstituted phenyl, pyridyl, furyl or thienyl radical which carries, at least at the two carbon atoms adjacent to the linkage point of the carbonyl group, the substituents A and B, which may be identical or different, and each of which is alkyl, alkoxy or alkythio of 1 to 6 carbon atoms, cycloalkyl of 5 to 7 carbon atoms, phenyl or halogen, or R.sup.3 is .alpha.-naphthyl substituted by A and B at least in the 2- and 8-positions or is .beta.Type: GrantFiled: May 12, 1980Date of Patent: November 3, 1981Assignee: BASF AktiengesellschaftInventors: Peter Lechtken, Ingolf Buethe, Manfred Jacobi, Werner Trimborn
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Patent number: 4296042Abstract: This process relates to the synthesis of unsaturated aliphatic esters useful as insect sex attractants, including gossyplure, the insect sex pheromone of the pink bollworm moth, Pectinophora gossypiella, and intermediates therefor. The process utilizes a cyclic phosphonium (Wittig) reagent.Type: GrantFiled: June 18, 1980Date of Patent: October 20, 1981Assignee: Syntex (U.S.A.) Inc.Inventors: Joseph M. Muchowski, Michael C. Venuti
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Patent number: 4293502Abstract: A new group of nickel ylides is provided that is highly active at relatively low operating temperatures and pressures in the oligomerization of ethylene. The compounds can be defined by the following Formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.Type: GrantFiled: August 18, 1980Date of Patent: October 6, 1981Assignee: Gulf Research & Development CompanyInventors: David L. Beach, James J. Harrison
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Patent number: RE32826Abstract: A cationic lipophilic complex of technetium is disclosed wherein all of the coordination positions of the technetium atom are filled with a neutral donor atom having a pair of electrons available for forming a coordinate bond with technetium. The donor atoms are provided by target-seeking ligands or salts thereof, said ligands having the following structure of one of formulas I, II or III. Such complexes are useful for imaging heart and hepatobiliary tissues.Type: GrantFiled: February 6, 1987Date of Patent: January 10, 1989Assignee: E. I Du Pont de Nemours and CompanyInventor: Karen E. Linder