Phosphorus Containing Patents (Class 556/174)
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Patent number: 7342061Abstract: The invention relates to a method for producing novel reactive organic compounds containing poly-DOPO and having a higher phosphorus content than known comparable DOPO (9,10-dihydro-9-oxa-10-phospha-phenenthrene-10-oxide) adducts, and to the use thereof for flameproofing thermoplastic polymers, such as polyesters and polyamides. The same flameproofing effect is achieved with smaller additive quantities than previously, thus reducing the influence of the physical, especially textile-physical properties of the polymers. The adducts containing poly-DOPO are formed by reacting DOPO with acetylenes carrying reactive groups, in the presence of a catalyst.Type: GrantFiled: June 18, 2003Date of Patent: March 11, 2008Assignee: Thueringisches Institut f{umlaut over ())}{umlaut over (})}r Textil-und Kunstsoff-Forschung e.V.Inventors: Wolfgang Mueller, Erich Meusel, Klaus Heinemann, Eberhard Taeger
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Patent number: 7271276Abstract: The present invention relates to a complex comprising a novel and stable ligand and a metal center. The ligand contains a ring, particularly a phenyl group, or a hydrocarbon group which links an amino group and PR1R2, NR1R2, OR1, SR1, or AsR1R2 group such that the structure of the ligand can be stabilized.Type: GrantFiled: June 23, 2004Date of Patent: September 18, 2007Assignee: National Sun Yat-Sen UniversityInventor: Lan-Chang Liang
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Patent number: 7193098Abstract: A process for producing semiconductor nanocrystal cores, core-shell, core-buffer-shell, and multiple layer systems is disclosed. The process involves a non-coordinating solvent and in situ surfactant generation.Type: GrantFiled: March 19, 2004Date of Patent: March 20, 2007Assignee: The Research Foundation of State University of New YorkInventors: Derrick W. Lucey, David J. MacRae, Paras N. Prasad, Orville T. Beachley, Jr.
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Patent number: 7115539Abstract: A metal compound obtained by a process comprising the step of contacting, in a specific ratio, a compound represented by the formula M1L1r, a compound represented by the formula R1s?1TH, and a compound represented by the formula R24?nJ(OH)n; a catalyst component for addition polymerization comprising the metal compound; a catalyst for addition polymerization using the catalyst component; and a process for producing an addition polymer using the catalyst.Type: GrantFiled: January 9, 2004Date of Patent: October 3, 2006Assignee: Sumitomo Chemical Company LimitedInventors: Kazuo Takaoki, Hideki Oshima, Makoto Satoh
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Patent number: 7053232Abstract: The present inventions relate to novel ionic liquids comprising a Lewis acid anion such as AlyR3y+1 wherein y is greater than 0 and R is independently selected from the group consisting of an alkyl group and halogen group. The cation of the ionic liquids can be selected from ammonium, sulfonium, and phosphonium cations wherein said cation generally has less than 14 total carbon atoms. The anion may contain an organic bridge to bond neighboring aluminum atoms that would otherwise be susceptible to leaching aluminum trichloride. The ionic liquids are useful in many applications and particularly as catalysts.Type: GrantFiled: August 15, 2003Date of Patent: May 30, 2006Assignee: Sachem, Inc.Inventor: Roger Moulton
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Patent number: 6919291Abstract: Zwitterionic compositions of matter comprising cations [Ct]+ and anions connected together with substantially rigid fluorinated linking groups are described. These zwitterionic compositions serve as cocatalysts. They activate olefin polymerization catalysts, and can dissolve in aliphatic solvents. Synthesis and polymerization are illustrated.Type: GrantFiled: October 31, 2001Date of Patent: July 19, 2005Assignee: ExxonMobil Chemical Patents Inc.Inventor: George Rodriguez
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Patent number: 6809209Abstract: The invention addresses an composition of matter comprising a cation [Ct]+ and an anion [A]−, the anion comprises a core Group-13 element bound to partially or completely fluorinated fluoroaryl ligands, at least one of the fluoroaryl ligands is substituted with a Group-15 element that has been rendered essentially inert for subsequent chemical reaction through its unbonded electron pair by substituting an electron-withdrawing group on it. [Ct]+ may be selected from anilinium and ammonium cations, trityl carbenium cations, Group-11 metal cations, silylium cations, the cations of the hydrated salts of Group-1 or -2 metals, and derivatives of the foregoing anilinium, ammonium, trityl carbenium, and silylium cations containing C1-C20 hydrocarbyl, hydrocarbylsilyl, or hydrocarbylamine substituents for one or more hydrogen atoms of said cations.Type: GrantFiled: September 17, 2002Date of Patent: October 26, 2004Assignee: ExxonMobil Chemical Patents Inc.Inventor: George Rodriguez
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Publication number: 20040110631Abstract: Zwitterionic compositions of matter comprising cations [Ct]+ and anions connected together with substantially rigid fluorinated linking groups are described. These zwitterionic compositions serve as cocatalysts. They activate olefin polymerization catalysts, and can dissolve in aliphatic solvents. Synthesis and polymerization are illustrated.Type: ApplicationFiled: April 24, 2003Publication date: June 10, 2004Inventor: George Rodriguez
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Patent number: 6686491Abstract: It is known to polymerize olefins using transition metal complexes and/or compounds. There is an ongoing search for catalysts for olefin polymerization which do not rely on transition metals as the active center. The present invention provides novel aluminum phosphinimine complexes, containing additional heteroatoms which are useful in the polymerization of olefins.Type: GrantFiled: July 19, 2002Date of Patent: February 3, 2004Assignee: The Governors of the University of AlbertaInventors: Ronald G. Cavell, Qinyan Wang, Aparna Kasani
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Patent number: 6624321Abstract: The present invention relates to a process for the preparation of polyether polyols by the reaction of alkylene oxides and compounds containing active hydrogens, in the presence of specific Lewis acid metal compounds as catalysts, novel bis(perfluoroalkylsulfonic acid) compounds of Group 13 of the Periodic Table of the Elements, and to a process for the preparation thereof and the use thereof as catalysts for ring-opening polymerization of cyclic ethers.Type: GrantFiled: October 22, 2002Date of Patent: September 23, 2003Assignee: Bayer AktiengesellschaftInventors: Uwe Denninger, Jörg Hofmann, Pramod Gupta
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Patent number: 6492474Abstract: It is known to polymerize olefins using transition metal complexes and/or compounds. There is an ongoing search for catalysts for olefin polymerization which do not rely on transition metals as the active center. The present invention provides novel aluminum phosphinimine complexes which are useful in the polymerization of olefins.Type: GrantFiled: March 15, 2001Date of Patent: December 10, 2002Assignee: The Governors of the University of AlbertaInventors: Ronald G. Cavell, Qinyan Wang, Ruppa P. Kamalesh Babu, Aparna Kasani
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Patent number: 6476250Abstract: In order to provide a novel optically active binaphthol derivative useful as an asymmetric catalyst or the like, with which a higher reaction yield and a higher optical yield (selectivity) may be attained in asymmetric synthesis, an asymmetric catalyst using the same and a method of asymmetric synthesis, an optically active fluorinated binaphthol derivative represented by the following formula (I) (wherein R1 and R2 each represent a fluorinated hydrocarbon group) was synthesized.Type: GrantFiled: September 13, 2001Date of Patent: November 5, 2002Assignee: Japan Science and Technology CorporationInventors: Shu Kobayashi, Haruro Ishitani
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Patent number: 6444834Abstract: It is known to polymerize olefins using transition metal complexes and/or compounds. There is an ongoing search for catalysts for olefin polymerization which do not rely on transition metals as the active center. The present invention provides novel aluminum phosphinimine complexes, containing additional heteroatoms which are useful in the polymerization of olefins.Type: GrantFiled: August 9, 2000Date of Patent: September 3, 2002Assignee: The Governors of the University of AlbertaInventors: Ronald G. Cavell, Qinyan Wang, Aparna Kasani
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Patent number: 6372929Abstract: An organometallic compound suitable for use as a catalyst for the preparation of an ester comprises the reaction product of an orthoester or condensed orthoester of titanium, zirconium or aluminum, an alcohol containing at least two hydroxyl groups, an organophosphorus compound containing at least one P—OH group and a base. A process for the preparation of an ester comprises carrying out an esterification reaction in the presence of the catalyst In a further embodiment the organometallic compound suitable for use as a catalyst in an esterification process comprises the reaction product of, in addition, a 2-hydroxy carboxylic acid.Type: GrantFiled: May 9, 2000Date of Patent: April 16, 2002Assignee: ACMA LimitedInventors: John Ridland, Iain Wesley Hepplewhite
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Patent number: 6307097Abstract: A process for the preparation of aluminum salts of cyclic phosphinic acids is described, which comprises reacting cyclic phosphinic acids, such as 1-hydroxydihydrophosphole oxides or 1-hydroxyphospholane oxides, with aluminum hydroxide in the presence of water and in the absence of polar solvents at elevated temperature for a reaction time of from 1 to 20 hours.Type: GrantFiled: March 6, 2000Date of Patent: October 23, 2001Assignee: Ticona GmbHInventor: Thomas Seitz
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Patent number: 6303674Abstract: Aluminum salts of alkylhydroxymethylphosphinic acids are prepared by reacting phosphonous acids with aluminum hydroxide or paraformaldehyde or trioxane or mixtures thereof in water at 110 to 250° C. under pressure. The resulting aluminumphosphinates are incorporated into polymers, in particular into polyesters, and have a flame retardant action therein.Type: GrantFiled: December 6, 1999Date of Patent: October 16, 2001Assignee: Ticona GmbHInventor: Hans-Jerg Kleiner
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Publication number: 20010018534Abstract: It is known to polymerize olefins using transition metal complexes and/or compounds. There is an ongoing search for catalysts for olefin polymerization which do not rely on transition metals as the active center. The present invention provides novel aluminum phosphinimine complexes which are useful in the polymerization of olefins.Type: ApplicationFiled: March 15, 2001Publication date: August 30, 2001Applicant: THE GOVERNORS OF THE UNIVERSITY OF ALBERTAInventors: Ronald G. Cavell, Qinyan Wang, Ruppa P. Kamalesh Babu, Aparna Kasani
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Patent number: 6281154Abstract: Novel compounds having one group 13 element bound with one mono- or di-anionic tridentate ligand, a method of preparation thereof and use thereof as a copolymerization catalyst.Type: GrantFiled: October 28, 1998Date of Patent: August 28, 2001Assignees: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S), Centre National de la Recherche Scientifique (CNRS)Inventors: Guy Bertrand, Jean Bernard Cazaux, Norbert Emig, Régis Reau
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Patent number: 6252108Abstract: The invention relates to a method for producing aluminum salts of cyclic phopshinic acid. According to the invention, cyclic phosphinic acids, such as 1-hydroxydihydrophosphole oxide or 1-hydroxyphospholane oxide, are reacted with a basic aluminum acetate, such as hydroxyaluminum diacetate, in the presence of water and in the absence of polar solvents with heat for a reaction time of 1 to 20 hours.Type: GrantFiled: February 4, 2000Date of Patent: June 26, 2001Assignee: Ticona GmbHInventor: Thomas Seitz
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Patent number: 6239061Abstract: Aluminum-phosphinimine complexes function as a component in a catalyst system for the (co)polymerization of ethylene. The inventive catalyst components form a highly productive polymerization system when activated with so-called “ionic activators”. The need for conventional transition metal catalyst metals (such as titanium, hafnium, zirconium or vanadium) is eliminated.Type: GrantFiled: November 23, 1999Date of Patent: May 29, 2001Assignee: Nova Chemicals (International) S.A.Inventors: Qinyan Wang, Xiaoliang Gao, John McMeeking, Wei Xu, Douglas W. Stephan
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Patent number: 6235919Abstract: It is known to polymerize olefins using transition metal complexes and/or compounds. There is an ongoing search for catalysts for olefin polymerization which do not rely on transition metals as the active center. The present invention provides novel aluminum phosphinimine complexes which are useful in the polymerization of olefins.Type: GrantFiled: August 17, 1999Date of Patent: May 22, 2001Assignee: The Governors of the University of AlbertaInventors: Ronald G. Cavell, Qinyan Wang, Ruppa P. Kamalesh Babu, Aparna Kasani
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Patent number: 6184405Abstract: The invention concerns a process for preparing salts of organic acids of phosphorus. The organic acid is reacted with aluminum hydroxide in the presence of a polar solvent selected from acetic acid, propionic acid, methanol, ethanol, n-propanol, isopropanol, butanol, acetone, methyl ethyl ketone, tetrahydrofuran, dioxane, and acetonitrile.Type: GrantFiled: May 3, 1999Date of Patent: February 6, 2001Assignee: Ticona GmbHInventors: Hans-Jerg Kleiner, Thomas Seitz
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Patent number: 6060614Abstract: The invention relates to novel chelating ligands which incorporate a tripodal backbone. More particularly, the invention pertains to novel tripodal ligands which form coordination compounds with a variety of metal ions, particularly, but not exclusively, trivalent metal ions and lanthanide metal ions, which are useful in nuclear medicine. A novel amine phosphinate tripodal ligand, a chelating ligand and a process therefor involving a metal ion and particularly a trivalent metal ion of the group 13 metals and the rare earths. The process comprises complexing Tc or Re or any one of the group 13 metals, Al, Ga and In, and any one of the rare earths, Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Th, Dy, Ho, En, Tm, Yb and Lu, with an amine phosphinate tripodal ligand.Type: GrantFiled: July 10, 1998Date of Patent: May 9, 2000Assignee: The University of British ColumbiaInventors: Chris Orvig, Mark P. Lowe
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Patent number: 5990053Abstract: A gelling agent for viscosifying liquid hydrocarbon fracturing fluids is an aluminum salt of a phosphate ester made by forming the ester by reacting P.sub.2 O.sub.5 with a mixture of organic alcohols which include high molecular weight alcohols or diols selected from hydroxy functional homopolymers, copolymer or terpolymer made from olefins and diolefins selected from the group consisting of ethylene, propylene, butene, butadiene, isoprene, and selected styrenes. The oil based fracturing fluid containing the gelling agent in sufficient concentration to provide a viscosity of between 50 cp and 350 cp at 100.degree. F.Type: GrantFiled: June 30, 1997Date of Patent: November 23, 1999Assignee: Nalco/Exxon Energy Chemicals, L.P.Inventors: Cruise K. Jones, Dennis A. Williams, Curtis C. Blair
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Patent number: 5872272Abstract: The present invention relates to polyvalent metal salts of a phosphoric diester represented by formula (1) and organo(poly)siloxanes modified with a polyvalent metal salt of a phosphoric diester having the structural units represented by formulae (9) and (10): ##STR1## wherein R.sup.1 represents a C1 to C20 linear or branched alkyl group, R.sup.2 and R.sup.4 are the same or different and independently represent a C2 to C3 linear or branched alkylene group, R.sup.3 represents a C3 to C20 linear or C5 to C20 branched alkylene group, A represents a group --COO-- or --O--, x and y are the same or different from each other and independently represent an integer of 0 to 10, L represents a C1 to C40 linear or branched alkyl group or a group, R.sup.1 --(OR.sup.2).sub.x --A--R.sup.3 (OR.sup.4).sub.y -- wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, A, x and y have the same meaning as defined herein before, M represents a divalent or polyvalent metal atom, and m represents the same value as the valence of M.Type: GrantFiled: June 15, 1995Date of Patent: February 16, 1999Assignee: Kao CorporationInventors: Shinji Yano, Junichi Fukasawa, Hironori Kawasaki, Munehisa Okutsu, Takeshi Ihara, Katsumi Kita, Yoshiaki Fujikura, Akira Akaogi
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Patent number: 5869722Abstract: Process for producing aluminum phosphinatesThe invention relates to a process for producing aluminum phosphinates of the formula (I) ##STR1## where R.sup.1 and R.sup.2, independently of each other, are linear or branched (C.sub.1 -C.sub.6)-alkyl or phenyl, which comprises reacting phosphinates of the formula (II) ##STR2## where R.sup.1 and R.sup.2 are as previously stated and R.sup.3 is C.sub.1 -C.sub.6 -alkyl, with aluminum chloride in a molar ratio of from 2.5:1 to 4:1.Type: GrantFiled: April 22, 1997Date of Patent: February 9, 1999Assignee: Ticona GmbHInventor: Hans-Jerg Kleiner
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Patent number: 5777120Abstract: Aluminum amidinate compounds of the formula ##STR1## wherein R.sup., R.sup.2, and R.sup.3 are selected from the group consisting of C.sub.1 to C.sub.50 alkyl, aryl, and silyl groups, X is an anionic ligand, preferably a hydrocarbyl, n=0 or 1, L, if present, is a labile Lewis base ligand, preferably having an oxygen, nitrogen, or phosphorus atom donating a lone pair of electrons to the aluminum center, and A.sup.- is an anion which balances the charge of the aluminum cation and only weakly if at all coordinates to the aluminum center and preferably contains boron, are disclosed. These compounds are useful as olefin polymerization catalysts without the need for cocatalysts or transition metal species.Type: GrantFiled: March 14, 1997Date of Patent: July 7, 1998Assignee: University of Iowa Research FoundationInventors: Richard F. Jordan, Martyn P. Coles
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Patent number: 5756789Abstract: Disclosed is a novel process for the synthesis of a metal-containing aluminophosphate having a layered structure and novel optically active metal-containing aluminophosphates useful as enantio-selective catalysts, which comprises:a) slurring an aluminum source with water;b) adding a phosphorus source and slurring;c) allowing the mixture to stand;d) adding an organic additive;e) allowing the mixture to stand;f) adding a cationic transition metal complexg) heating to 80.degree.-250.degree. C. for 20-180 hours wherein the mole ratio of transition metal complex to organic additive is in the range of 0.1-1.0:1.0.Type: GrantFiled: June 3, 1996Date of Patent: May 26, 1998Assignee: Texaco, Inc.Inventors: David Alan Bruce, Mark Gilmore White, Joseph Aaron Bertrand, Pei-Shing Eugene Dai, Randall Hughes Petty
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Patent number: 5627294Abstract: An alcohol and/or a carboxylic acid or carboxylate is used to reduce the proportion of sediment obtained in the manufacture of a metal or ammonium dihydrocarbyl dithiophosphate, for example, a zinc dihydrocarbyl dithiophosphate (ZDDP) for use as an antiwear agent/antioxidant in crankcase lubricating oils.Type: GrantFiled: February 24, 1995Date of Patent: May 6, 1997Assignee: Exxon Chemical Patents Inc.Inventors: David R. Adams, Patrick F. Ginnelly
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Patent number: 5344948Abstract: Neutral single-source molecular organic precursors containing tetradentate tripodal chelating ligands are provided that are useful for the preparation of films using chemical vapor deposition. These complexes can be generally represented by the formula ##STR1## wherein "M" is selected from the group consisting of a lanthanide, an actinide, a Group IIIA metal, a Group IIIA metalloid, a Group IVA metal, a Group IVA metalloid, a Group VA metal, a Group VA metalloid, a Group IIIB metal, a Group IVB metal, a Group VB metal, a Group VIB metal, a Group VIIB metal, and a Group VIIIB metal. The ligand "Z" can be present or absent, i.e., k=0-1, and is selected from the group consisting of hydrogen, halide, and a group bonded to "M" through N, O, P, S, As, Si, or C. In the tetradentate tripodal chelating ligand "E.sub.c " is N, P, or As, and m=0-1. When "E.sub.t " is N, P, or As, m=1, and when "E.sub.t " is O, S, or Se, m=0. Each "R.sup.1 " is independently selected from the group consisting of hydrogen, (C.sub.1 -C.Type: GrantFiled: July 10, 1992Date of Patent: September 6, 1994Assignee: Iowa State University Research Foundation, Inc.Inventor: John G. Verkade
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Patent number: 5288869Abstract: A new group of pentaerythryl diphosphonates and poly(pentaerythryl diphosphonates) are described. Flame-retardant compositions are also described, which include a thermoplastic polymer and a certain amount of self-extinguishing agent consisting of one of the above-mentioned pentaerythryl diphosphonates or poly(pentaerythryl diphosphonates).Type: GrantFiled: August 6, 1992Date of Patent: February 22, 1994Assignee: Enichem Synthesis S.p.A.Inventors: William Giroldini, Gianluigi Landoni, Antonio Rinaldi, Carlo Neri
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Patent number: 5241093Abstract: A process for preparing aluminophosphate compounds (and substituted derivatives) of the structural type VFI. This preparation process is characterized in that the speed of increase in temperature of the reaction mixture is greater than 250.degree. C./hour, the total time of heating of the reaction mixture, including the rise in temperature and the plateau heating, being less than one hour. The temperature of the plateau heating is between 100.degree. and 200.degree. C.The synthetic compounds in accordance with the invention possess(a) a general formula approximating to the following:1 Al.sub.2 O.sub.3 0.75-1.25 P.sub.2 O.sub.5 0-0.5 XO.sub.n/2 0-0.05 R y H.sub.2 OwhereX represents a heteroatom chosen from the group consisting of silicon, cobalt, magnesium and zinc;n is the degree of oxidation of the heteroatom X;y, the number of water molecules contained in the said compound, is greater than 0.Type: GrantFiled: January 21, 1992Date of Patent: August 31, 1993Assignee: Institut Francais du PetroleInventors: Jean-Francois Joly, Herve Cauffriez, Jean-Louis Guth
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Patent number: 5234716Abstract: The invention relates to the use of stabilised organometallic adduct compounds for the production of thin films and epitaxic layers by gas phase deposition.Type: GrantFiled: September 6, 1991Date of Patent: August 10, 1993Assignee: Merck Patent Gesellschaft mit Beschraenkter HaftungInventors: Martin Hostalek, Matthias Lokai, Ludwig Pohl
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Patent number: 5216155Abstract: Silicon and aluminum complexes having the following formula I, II or III: ##STR1## wherein x is 0 or 1, T is H or ##STR2## each R is independently selected from the group consisting of H, OH, C.sub.1-6 alkyl, C.sub.1-6 alkoxy, C.sub.2-6 alkene, C.sub.6-12 aryl, C.sub.1-6 hydroxyalkyl, C.sub.1-6 thioalkyl, C.sub.2-12 alkoxyalkyl, C.sub.3-20 heteroaromatic, and combinations thereof, wherein R may further contain one or more atoms of a non-carbon element such as Si, Ge, Sn, P, and the like; Y is a cation, and Z is a multivalent cation, are prepared by reacting silica or alumina with a diol, in the presence of a base, while removing water formed during the reaction. Methods for producing such complexes starting with silica or alumina, and methods for converting such complexes into other silicon or aluminum-containing compounds, are disclosed.Type: GrantFiled: November 12, 1991Date of Patent: June 1, 1993Assignee: Washington Research FoundationInventors: Richard M. Laine, Kay A. Youngdahl
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Patent number: 5196554Abstract: In a process for the preparation of bis(hydroxymethyl)phosphinates of the formulaM.sup.n+ [(HOCH.sub.2).sub.2 PO.sub.2.sup.- ].sub.nin which M is Li, Na, K, Ca, Mg, Zn or Al, and n is the valency of the element concerned and has a value of 1, 2 or 3, phosphinates of the formula M.sup.n+ [H.sub.2 PO.sub.2.sup.- ].sub.n are reacted with formaldehyde, trioxane or paraformaldehyde in water in an autoclave at a temperature of from 100.degree. to 200.degree. C. under the autogenous pressure at a residence time of from 5 to 20 hours. The novel chemical substance aluminum bis(hydroxymethyl)phosphinate of the formula Al[(HOCH.sub.2).sub.2 PO.sub.2.sup.- ].sub.3 is also obtainable in this way.Type: GrantFiled: May 3, 1991Date of Patent: March 23, 1993Assignee: Hoechst AktiengesellschaftInventor: Jurgen Svara
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Patent number: 5174991Abstract: An alkali metal monoalkylphosphate having a saturated or unsaturated straight-chain or branched hydrocarbon group having from 8 to 32 carbon atoms is described; also described is a process for preparing particles of said alkali metal zinc monoalkylphosphate and cosmetics containing said particles.Type: GrantFiled: February 27, 1990Date of Patent: December 29, 1992Assignee: Kao CorporationInventors: Shinichiro Omatsu, Mitsuharu Masuda, Hiroshi Ito, Takashi Imamura, Tomihiro Kurosaki
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Patent number: 5154912Abstract: The peroxides which include the O.sup.17 isotope, especially the hydrogen peroxides and peroxides and hydroperoxides prepared therefrom, are well adapted as nonradioactive labeled compounds for use in the medicinal and biological arts.Type: GrantFiled: September 20, 1990Date of Patent: October 13, 1992Assignee: AtochemInventors: Jean-Pierre Schirmann, Jean-Jacques Barieux
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Patent number: 5149853Abstract: In a process for the production of thin films and epitaxial layers by gas-phase deposition, intramolecularly stabilized organometallic compounds are employed as a source of metal.Type: GrantFiled: November 8, 1991Date of Patent: September 22, 1992Assignee: Merck Patent Gesellschaft mit beschraenkter HaftungInventors: Dietrich Erdmann, Max E. Van Ghemen, Ludwig Pohl, Herbert Schumann, Uwe Hartmann, Wilfried Wassermann, Meino Heyen, Holger Jurgensen
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Patent number: 5142079Abstract: The novel fluorinated carbon chain-containing aluminum compounds which are capable of imparting an SP value of desired level to inorganic materials and hence can be used as surface modifiers for improving the affinity between inorganic materials and fluororesins, fluorine-containing paints are disclosed.Type: GrantFiled: December 11, 1990Date of Patent: August 25, 1992Assignee: Ajinomoto Co., Inc.Inventors: Naoki Chiba, Koichiro Sagawa
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Patent number: 5102932Abstract: A reaction of alumina trihydrate, dimethyl methylphosphonate and a phosphonic acid of formula ##STR1## where R.sup.1 denotes an alkyl group of 1 to 4 carbon atoms, optionally substituted by at least one group selected from a hydroxyl group, a carboxyl group or a phosphonic acid group --P(O)(OH).sub.2, or a C.sub.6 to C.sub.12 aryl group and R.sup.2 denotes a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, is useful as a flame retardant for polymers.Type: GrantFiled: March 26, 1991Date of Patent: April 7, 1992Assignee: Ciba-Geigy CorporationInventor: James Gainer
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Patent number: 5099044Abstract: The invention relates to organometallic compounds which are intramolecularly stabilized, and also to their use for the production of thin films and epitaxial layers by gas-phase deposition.Type: GrantFiled: July 16, 1990Date of Patent: March 24, 1992Assignee: Merck Patent Gesellschaft mit Beschrankter HaftungInventors: Dietrich Erdmann, Ludwig Pohl, Martin Hostalek
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Patent number: 5089643Abstract: Preparation of the novel monomeric compounds of the formula (t-Bu).sub.2 t-Bu).sub.2, where M is Ga, Al, or In and E is As, P, Sb, or N, by reaction of (t-Bu).sub.2 MCl and LiE(t-Bu).sub.2. The resulting product (t-Bu).sub.2 ME(t-Bu).sub.2 can be pyrolyzed to form crystalline films of the metallic material, ME.Type: GrantFiled: April 29, 1991Date of Patent: February 18, 1992Assignee: The United States of America as represented by the Secretary of the NavyInventor: Kelvin T. Higa
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Patent number: 5075466Abstract: Preparation of the novel monomeric compounds of the formula (t-Bu).sub.2 t-Bu).sub.2, where M is Ga, Al, or In and E is As, P, Sb, or N, by reaction of (t-Bu).sub.2 MCl and LiE(t-Bu).sub.2. The resulting product (t-Bu).sub.2 ME(t-Bu).sub.2 can be pyrolyzed to form crystalline films of the metallic material, ME.Type: GrantFiled: April 29, 1991Date of Patent: December 24, 1991Assignee: The United States of America as represented by the Secretary of the NavyInventor: Kelvin T. Higa
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Patent number: 5068370Abstract: Preparation of the novel monomeric compounds of the formula (t-Bu).sub.2 ME(t-Bu).sub.2, where M is Ga, Al, or In and E is As, P, Sb, or N, by reaction of (t-Bu).sub.2 MCl and LiE(t-Bu).sub.2. The resulting product (t-Bu).sub.2 ME(t-Bu).sub.2 can be pyrolyzed to form crystalline films of the metallic material, ME.Type: GrantFiled: June 8, 1990Date of Patent: November 26, 1991Assignee: The United States of America as represented by the Secretary of the NavyInventor: Kelvin T. Higa
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Patent number: 5047565Abstract: The present invention involves chemical compounds particularly useful for the preparation of thin films or layers of group 3/group 5 materials by MOCVD and other techniques. Such compounds may be represented as having the formulas [M(ER'R").sub.3 ].sub.n or [RM(ER'R").sub.2 ].sub.n or [R.sub.2 M(ER'R")].sub.n wherein M is aluminum, gallium or indium; E is phosphorus, arsenic or antimony; R, R', and R" are one or more of hydrogen, alkyl, aryl, alkyl-substituted aryl, cyclic alkyl, halide or other anionic group; and n is between about 1 and about 6.Type: GrantFiled: October 14, 1987Date of Patent: September 10, 1991Assignee: Board of Regents, The University of Texas SystemInventors: Richard A. Jones, Alan H. Cowley, John G. Ekerdt
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Patent number: 5030741Abstract: The invention relates to cyclic organometallic compounds which are intramolecularly stabilized and also to their use to produce thin films and epitaxial layers by gas-phase deposition.Type: GrantFiled: May 18, 1989Date of Patent: July 9, 1991Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Dietrich Erdmann, Ludwig Pohl, Martin Hostalek, Matthias Lokai
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Patent number: 5015747Abstract: The invention relates to organometallic compounds which are stabilized intramolecularly and have a cyclic or bicyclic structure and to the use thereof for the preparation of thin films and epitaxial layers by gas phase deposition.Type: GrantFiled: April 7, 1989Date of Patent: May 14, 1991Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Martin Hostalek, Ludwig Pohl, Dietrich Erdmann, Herbert Schumann, Uwe Hartmann, Meino Heyen, Holger Jurgensen
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Patent number: 5003092Abstract: Cyclopentadienyl compounds of aluminum, gallium and indium which when reacted at low temperature with amines, phosphines and arsines form compounds which are potential precursors to ceramic materials and semiconductors.Type: GrantFiled: June 2, 1989Date of Patent: March 26, 1991Assignee: The Research Foundation of State University of NYInventor: Orville T. Beachley, Jr.
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Patent number: 4987241Abstract: A polyaluminum dialkyl phosphate is disclosed. The compound is prepared by the reaction of:(A) a dialkyl phosphate represented by formula (I): ##STR1## wherein R.sub.1 and R.sub.2 independently represent a hydrocarbon group of a C.sub.8-26 carbon atom content, or a salt thereof, and(B) a basic polyaluminum salt represented by formula (II):Al.sub.m (OH).sub.n X.sub.1.kH.sub.2 O (II)wherein X represents an anion having a valency of x other than a hydroxyl ion, m represents a positive integer satisfying the equation: 3m=n+x1, and k represents 0 or a positive integer, in an aqueous medium in which the resulting polyaluminum dialkyl phosphate is insoluble. The polyaluminum dialkyl phosphate, when it is formulated into a liquid oil, provides a highly transparent, densely structure, soft gel which contains only small amount of free oil component. The gel posseses favorable rheological characteristics and can adequately disperse by a stress and imparts a good feeeling upon use.Type: GrantFiled: January 25, 1989Date of Patent: January 22, 1991Assignee: Kao CorporationInventors: Junichi Fukasawa, Noriko Shirakawa, Hisao Tsutsumi
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Patent number: RE33292Abstract: A method of preparing a methyl alkyl of formula (R.sub.3 M).sub.x where R.sub.3 represents three alkyl groups R which may be the same or different, M represents a Group III metallic element and x is 1 or 2, which method comprises (a) forming a trialkyl adduct of formula (R.sub.3 M).sub.y. L wherein L represents an aryl-containing Group V, preferably phosphorus, donor ligand provided by an organic Lewis base which is stable at 20.degree. C., and wherein Y is an integer equal to the number of Group V atoms presents in the ligand, and (b) heating the adduct to provide thermal dissociation thereof thereby releasing the alkyl as a gaseous product.Type: GrantFiled: October 31, 1988Date of Patent: August 7, 1990Assignee: The Secretary of State for Defence in Her Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Donald C. Bradley, Halina Chudzynska, Marc M. Faktor