Patents Examined by Jennine Brown
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Patent number: 7211537Abstract: A modified aluminum oxy compound (A) obtained by reacting an aluminum oxy compound (a), water (b) and a compound having a hydroxyl group (c); a polymerization catalyst component comprising the modified aluminum oxy compound; a polymerization catalyst obtained by contacting said modified aluminum oxy compound (A), a transition metal compound (B) and optionally an organoaluminum compound (C) and a specified boron compound; and a process for producing an olefin polymer or an alkenyl aromatic hydrocarbon polymer with the polymerization catalyst.Type: GrantFiled: April 26, 2005Date of Patent: May 1, 2007Assignee: Sumitomo Chemical Company LimitedInventors: Masayuki Fujita, Tatsuya Miyatake, Yoshinori Seki, Nobuo Oi
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Patent number: 7199071Abstract: The present invention relates to a catalyst component suitable for olefin (co)polymerization, which comprises an aluminoxane supported on magnesium halide and contains more than 5% by weight of aluminum. The catalyst component according to the present invention is obtained by contacting an aluminoxane compound and a magnesium compound in the presence of a multifunctional organic compound. The catalyst comprising said component and metallocene shows good activity and consumes less amount of aluminoxane in the process of olefin polymerization. The polymer prepared by using said catalyst has an improved particle morphology and a narrow particle distribution.Type: GrantFiled: December 14, 2001Date of Patent: April 3, 2007Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute Of Chemical IndustryInventors: Ying Zheng, Zhe Guan, Shuke Jiao, Bo Qiu, Xi Wang
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Patent number: 7192478Abstract: Fatty (meth)acrylates having a %-EpO content of below 0.6, which are reaction products of epoxidized compounds selected from the group consisting of epoxidized fatty acid esters, epoxidized triglycerides and mixtures thereof, and acids selected from the group consisting of acrylic acid, methacrylic acid and mixtures thereof, wherein the %-EpO content of the epoxidized compound is above 6.4, wherein the epoxidized compound is an epoxidation product of fatty acid moieties having one or more carbon-carbon double bonds, wherein less than 20 mole % of the fatty acid moieties contain three or more carbon-carbon double bonds, and wherein greater than 60 mole % of the fatty acid moieties contain two carbon-carbon double bonds are useful as pigment dispersants. Pigment dispersant concentrates, aqueous pigment dispersions and methods of dispersing pigments with the fatty (meth)acrylates are described.Type: GrantFiled: March 19, 2002Date of Patent: March 20, 2007Assignee: Cognis Deutschland GmbH & Co. KGInventors: Horst Sulzbach, Alfred Westfechtel, Lars Zander, Rainer Hoefer, Matthias Fies
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Patent number: 7166555Abstract: Porous ceramic catalyst supports are pre-coated with a passivation layer prior to applying a catalyst or catalyst support coating, the passivation layer consisting of a coating of a liquid mixture comprising at least one coating material selected from the group of polyvinyl alcohol/vinyl amine copolymer, polyvinyl alcohol/vinyl formamide copolymer, and gelatin.Type: GrantFiled: February 14, 2005Date of Patent: January 23, 2007Assignee: Corning IncorporatedInventors: Paul John Shustack, Kimberly Sue Wayman
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Patent number: 7160835Abstract: Bisphosphines represented by the general formula (I) wherein Ar1 and Ar2 each represents an arylene group which may be substituted; R1 and R2 each represents an alkyl group which may be substituted, or an aryl group which may be substituted, or R1 and R2 may combinedly form a ring together with the phosphorus atom bonded thereto; R3and R4 each represents hydrogen atom or an alkyl group; and the carbon atoms each having R3 and R4 are bonded in positions ortho to the oxygen atom bonded to Ar1 and Ar2; process for production thereof; Group VIII metal complexes comprising said bisphosphines; and process for producing aldehydes, which comprises, on hydroformylation of ethylenically unsaturated compounds with carbon monoxide and hydrogen, using said Group VIII metal complexes.Type: GrantFiled: January 10, 2003Date of Patent: January 9, 2007Assignee: Kuraray Co., Ltd.Inventor: Tomoaki Tsuji
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Patent number: 7157398Abstract: The invention relates to a method for producing special transition metal compounds, to novel transition metal compounds and to the use thereof for polymerizing olefins.Type: GrantFiled: February 26, 2003Date of Patent: January 2, 2007Assignee: Celanese Ventures GmbHInventors: Jörg Schottek, Jörg Schulte, Tim Dickner, Iris Küllmer
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Patent number: 7151070Abstract: The compound of this invention is a useful catalyst for the oxidative coupling of naphthol. Its originality lies in that it is a novel vanadium complex of Schiff's base formed by a chiral amino acid and a formyl biphenol or its derivative. Its axis chirality is induced to form by the chiral amino acid. It has the general formula: where R represents a benzyl, an isopropyl, an isobutyl or a tertiary butyl and the configuration of the amino acid is R or S. The compound can catalyze oxidative coupling of naphthol or its derivative to form binaphthol or its derivatives with a high optical purity.Type: GrantFiled: February 27, 2003Date of Patent: December 19, 2006Assignee: Chengdu Institute of Organic Chemistry Chinese Academy of SciencesInventors: Liuzhu Gong, Zhibin Luo, Quanzhong Liu, Aiqiao Mi, Yaozhong Jiang
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Patent number: 7148175Abstract: A polymerization catalyst system, containing a specified ratio of two iron complexes of a bisimine of 2,6-diacylpyridine or a bisimine of a 2,6-pyridinedicarboxaldehyde which produce polyolefins of differing molecular weights, is useful for producing polyolefins, especially polyethylenes, which are particularly useful for blow molding.Type: GrantFiled: January 7, 2003Date of Patent: December 12, 2006Assignee: E. I. du Pont de Nemours and CompanyInventor: Joel David Citron
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Patent number: 7144838Abstract: The present invention relates to a process for producing titanium dioxide pigment, which comprises a step of coating hydrolysis product of an alkylsilane compound represented by the following formula (1): (where R is an alkyl group having 5 or less carbon atoms, R? is a hydrolyzable group, and n is an integer of 1 to 3, m is an integer of 0 to 2, and n+m?3) by dry processing on surfaces of particles of titanium dioxide pigment. The present invention provides titanium dioxide pigment with distinguished hydrophobic property, dispersibility, and heat resistance.Type: GrantFiled: March 10, 2003Date of Patent: December 5, 2006Assignee: Ishihara Sangyo Kaisha, Ltd.Inventors: Hideo Takahashi, Toshihiko Akamatsu, Yuji Shigeno
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Patent number: 7141111Abstract: Described herein are embedded pigments consisting of a labile chromophore englobed in a coating of refractory and transparent material formed by nanomolecular particles, also described are oxides of refractory and transparent materials in the form of nanoparticles and their use for coating labile chromophores or ceramic surfaces.Type: GrantFiled: March 6, 2003Date of Patent: November 28, 2006Assignee: Colorobbia Italia S.P.A.Inventors: Giovanni Baldi, Andrea Barzanti, Marco Bitossi
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Patent number: 7132383Abstract: A polymerization catalyst for polyester production which contains neither a germanium compound nor an antimony compound as a major component. It contains aluminum as the main metallic ingredient, has excellent catalytic activity, and gives a polyester which is effectively inhibited from suffering thermal degradation, during melt molding, without deactivating or removing the catalyst, and is excellent in thermal stability, stability to thermal oxidation, and hydrolytic resistance. The polymerization catalyst contains as a first metallic ingredient at least one member selected among aluminum and compounds thereof and further contains a phosphorus compound represented by a specific chemical formula. The polyester produced with this catalyst is usable as fibers, films, sheets, various moldings including hollow moldings, etc.Type: GrantFiled: September 10, 2001Date of Patent: November 7, 2006Assignee: Toyo Boseki Kabushiki KaishaInventors: Takahiro Nakajima, Kenichi Tsukamoto, Shoichi Gyobu, Fumikazu Yoshida, Maki Sato, Naoki Watanabe, Katsuhiko Kageyama, Mitsuyoshi Kuwata, Nobuo Moriyama, Haruo Matsumoto, Yoshitomo Ikehata, Yoshinao Matsui, Masaou Matsuda, Munekazu Okuhara, Hiroki Fukuda
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Patent number: 7128892Abstract: Mesoporous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds using an ionic structure directing agent are described. The silicon and aluminum, gallium or titanium centers in the structures are stable so that the framework of the structure does not collapse when heated in the presence of water or water vapor (steam). The steam stable compositions can be used as catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other reactions of organic compounds.Type: GrantFiled: October 2, 2003Date of Patent: October 31, 2006Assignee: Board of Trustees of Michigan State UniversityInventors: Thomas J. Pinnavaia, Wenzhong Zhang, Yu Liu
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Patent number: 7105467Abstract: The present invention provides nickel catalysts and solvents which are useful in a cross-coupling reaction between an organomagnesium compound and an aromatic ether compound, such as an anisole derivative.Type: GrantFiled: July 8, 2003Date of Patent: September 12, 2006Assignee: Pharmacore, Inc.Inventor: John W. Dankwardt
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Patent number: 7098166Abstract: A process for preparing a fluorine-containing alcohol compound, the process comprising the step of reacting water with a halogenated fluorine compound in the presence of a catalyst for preparing a fluorine-containing alcohol compound, the catalyst obtained by supporting an ammine complex containing at least one component selected from the group consisting of the elements in Group 1B, Group 2B, Group 6A, Group 7A and Group 8 of the periodic table on at least one complex oxide selected from the group consisting of Si—Al complex oxides, Al—P complex oxides and Si—Al—P complex oxides.Type: GrantFiled: January 4, 2005Date of Patent: August 29, 2006Assignee: Daikin Industries, Ltd.Inventors: Toshiyuki Katsube, Yuuki Matsuda, Jun Miki
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Patent number: 7094725Abstract: The present invention provides compounds of the formula wherein R is optionally substituted lower alkyl, cycloalkyl or aryl; R? is alkyl or aryl; n is zero or an integer of 1 or 2; or an enantiomer thereof; or an enantiomeric mixture thereof. The compounds of formula (I) are bridged C2-symmetric biphenyldiphosphine analogs and, thus, may be employed as ligands to generate chiral transition metal catalysts which may be applied in a variety of asymmetric reactions. The compounds of the present invention are easily accessible in high diastereomeric and optical purity according to the methods disclosed herein.Type: GrantFiled: July 9, 2004Date of Patent: August 22, 2006Assignee: The Hong Kong Polytechnic UniversityInventors: Albert Sun-Chi Chan, Liqin Qiu
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Patent number: 7094724Abstract: Catalyst solid for olefin polymerization comprising A) at least one calcined hydrotalcite and B) at least one organic transition metal compound, and also a catalyst system comprising the catalyst solid, the use of the catalyst solid for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst solid.Type: GrantFiled: June 13, 2001Date of Patent: August 22, 2006Assignee: Bassell Polyelefine GmbHInventors: Volker Fraaije, Markus Oberhoff, Nicola (Hüsgen) Paczkowski, Markus Schopf, Wolfgang Bidell, Joachim Wulff-Döring, Shahram Mihan
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Patent number: 7087548Abstract: A process for preparing an Rh-based catalytic system heterogenized on an organic or mineral support, characterized in that: a) a rhodium derivative with a valency state>0 is reduced in an ether or aromatic solvent and in the presence of a compound chosen from the group consisting of lipophilic tertiary amines, lipophilic tertiary amides and lipophilic quaternary ammonium salts, and b) the mixture thus obtained is adsorbed onto a suitable organic or mineral support. Use of the abovementioned catalytic system to hydrogenate a C?C double bond of an ?,?-unsaturated carbonyl compound.Type: GrantFiled: October 24, 2002Date of Patent: August 8, 2006Assignee: Chemi SpaInventors: Oreste Piccolo, Alessandra Verrazzani
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Patent number: 7084088Abstract: A Lewis acid catalyst composition comprising a specific mixed medium and a Lewis acid catalyst, wherein the Lewis acid catalyst is at least one compound selected from the group consisting of compounds respectively represented by the following formulae (1) and (2): [(Rf1SO2)(Rf2SO2)N]nM,??(1) and [(Rf1SO2)(Rf2SO2)(Rf3SO2)C]nM. ??(2) A method for continuously performing a reaction which proceeds in the presence of the above-mentioned Lewis acid catalyst by using a specific mixed medium and the above-mentioned Lewis acid catalyst. A novel Lewis acid catalyst.Type: GrantFiled: December 19, 2002Date of Patent: August 1, 2006Assignees: The Noguchi Institute, Asahi Kasei Kabushiki KaishaInventors: Joji Nishikido, Akihiro Yoshida, Masanori Ikeda
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Patent number: 7081427Abstract: A solid catalyst component for olefin polymerization comprising titanium, magnesium and a compound of the general formula (I) wherein R1 and R2 are independently a C3 straight or branched hydrocarbon group, R3 is hydrogen or a C1-4 straight hydrocarbon group, R4 is a C1-4 straight or branched hydrocarbon group or a C3-4 aliphatic cyclic hydrocarbon group when R3 is hydrogen, R4 is the same C1-4 straight hydrocarbon group as R3 when R3 is a C1-4 straight hydrocarbon group, and n is an integer of 1 to 10. A catalyst for olefin polymerization, containing this catalyst component, obtains a high activity with high stereospecificity.Type: GrantFiled: April 19, 2002Date of Patent: July 25, 2006Assignee: Idemitsu Kosan Co., Ltd.Inventors: Nobuhiro Yabunouchi, Takanori Sadashima, Hideo Funabashi
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Patent number: 7078362Abstract: A modified Ziegler-Natta catalyst system comprising a titanium or vanadium compound, a magnesium compound, a carbene donor, and an aluminum compound is disclosed. The invention includes a process which comprises polymerizing an alpha-olefin in the presence of the carbene-modified Ziegler-Natta catalyst system. The carbene donor may be used as either an internal or external donor. The use of carbene donors in Ziegler-Natta catalyzed olefin polymerizations should improve catalyst activity and/or stereospecificity.Type: GrantFiled: December 9, 2004Date of Patent: July 18, 2006Assignee: Equistar Chemicals, LPInventor: Sandor Nagy