Aluminum Containing Patents (Class 556/27)
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Patent number: 6534665Abstract: The present invention relates to metallocenes, wherein the two cyclopentadienyl rings are connected to each other by a single carbon atom characterized by the following general formula III where each A, equal to or different from each other, is selected from the group consisting of: hydrogen, OR3, NRR4, or SR5; and to compounds of formula IV wherein each B, equal to or different from each other, is selected from the group consisting of: OH, NRH or SH, obtained by hydrolizing the corresponding oxygen, nitrogen or sulfur containing groups from compounds of formula III. These compounds are used as active catalyst components in the polymerization of olefins.Type: GrantFiled: October 26, 1999Date of Patent: March 18, 2003Assignee: Repsol Quimica S.A.Inventors: Maria Francisca Martinez Nu{overscore (n)}ez, Antonio Mu{overscore (n)}oz-Escalona LaFuente, Bego{overscore (n)}a Pe{overscore (n)}a Garcia, Pilar LaFuente Ca{overscore (n)}as
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Patent number: 6528449Abstract: Catalyst compositions useful for olefin polymerizations comprising a Group 3-10 metal complex and a compound corresponding to the formula: AlArfQ1Q2, or a dimer, adduct, or mixture thereof and further mixtures with aluminum compounds of the formula AlArf3, where: Arf is a fluorinated aromatic hydrocarbyl moiety of from 6 to 30 carbon atoms; Q1 is Arf or a C1-20 hydrocarbyl group, optionally substituted with one or more cyclohydrocarbyl, hydrocarbyloxy, hydrocarbylsiloxy, hydrocarbylsilylamino, hydrocarbylsilyl, silylhydrocarbyl, di(hydrocarbylsilyl)amino, hydrocarbylamino, di(hydrocarbyl)amino, di(hydrocarbyl)phosphino, or hydrocarbylsulfido groups having from 1 to 20 atoms other than hydrogen, or, further optionally, such substituents may be covalently linked with each other to form one or more fused rings or ring systems; and Q2 is an aryloxy, arylsulfide or di(hydrocarbyl)amido group, optionally substituted with one or more hydrocarbyl, cyclohydrocarbyl, hydrocarbyloxy, hydrocarbylsiloxy, hydrocarbylsilType: GrantFiled: October 31, 2000Date of Patent: March 4, 2003Assignee: The Dow Chemical ComapnyInventors: Eugene Y. Chen, William J. Kruper, Jr., Gordon R. Roof, David J. Schwartz, Joey W. Storer
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Patent number: 6500949Abstract: An improved process for forming bridged Group 4 transition metal complexes using boron trihalide and a magnesium dicyclopentadienyl compound to form a dicyclopentadienyl boron halide intermediate for subsequent metallation or other synthetic use and novel metal complexes.Type: GrantFiled: April 10, 2001Date of Patent: December 31, 2002Assignee: Dow Global Technologies Inc.Inventors: Richard E. Campbell, Jr., Kevin A. Frazier, David D. Devore, Paul C. Vosejpka
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Patent number: 6462212Abstract: Novel, highly effective catalyst compositions are described in which a low cost co-catalyst can be employed at very low aluminum loadings. Such compounds are composed of a cation derived from d-block or f-block metal compound, such as a metallocene, by loss of a leaving group, and an aluminoxate anion derived by transfer of a proton from a stable or metastable hydroxyaluminoxane to such leaving group. These catalyst compositions have extremely high catalytic activity and typically have high solubility in paraffinic solvents. Moreover they yield reduced levels of ash and result in improved clarity in polymers formed from such catalysts. Surprisingly, when isolated and stored, and optionally purified, under anhydrous inert conditions and surroundings, the catalyst compounds are more stable than if kept in solution. Thus these catalyst compounds can be stored, shipped, and used under inert anhydrous conditions as preformed catalysts thus simplifying the polymerization operations.Type: GrantFiled: September 5, 2000Date of Patent: October 8, 2002Assignee: Albemarle CorporationInventor: Feng-Jung Wu
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Patent number: 6455718Abstract: Chloropentafluorobenzene or bromopentafluorobenzene is formed by heating perhalobenzene, C6FnX6-n where n is 0 to 4, and each X is, independently, a chlorine or bromine atom, with alkali metal fluoride, and an aminophosphonium catalyst (e.g., (Et2N)4PBr). The resultant chloropentafluorobenzene or bromopentafluorobenzene can be converted into a pentafluorophenyl Grignard reagent or a pentafluorophenyl alkali metal compound. This in turn can be converted into tris(pentafluorophenylborane), which can be converted into a single coordination complex comprising a labile tetra(pentafluorophenyl)boron anion (e.g., a trialkylammonium tetra(pentafluorophenyl)boron complex or an N,N-dimethylanilinium tetra(pentafluorophenyl)boron complex).Type: GrantFiled: February 21, 2001Date of Patent: September 24, 2002Assignee: Albemarle CorporationInventors: David W. Owens, John F. Balhoff
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Patent number: 6451296Abstract: Stable aluminum-zirconium antiperspirant compositions in polyhydric alcohol solution with enhanced efficacy were made by direct reaction in aqueous solution of a soluble aluminum salt, a zirconium compound, a polyhydric alcohol, aluminum metal and optionally an amino acid buffer, and maintaining the solution at 100-140° C. to form a 20-45% by weight concentration of aluminum-zirconium complexes on an anhydrous basis. A solid product can be obtained by spray drying the product solution.Type: GrantFiled: February 1, 2000Date of Patent: September 17, 2002Inventors: Zijun Li, Jawahar Chunilal Parekh
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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: 6423659Abstract: &pgr;-complex compounds and in particular metallocene compounds of formula (Ia)(Ib), in which &pgr;I and &pgr;II represent &pgr;-systems, D designates a donor atom and A designates an acceptor atom, D and A being linked by a reversible coordinative bond such that the donor group assumes a positive (partial) charge and the acceptor group assumes a negative (partial) charge, at least one of D and A being part of the associated &pgr;-system in each case, M stands for a transition metal of the 3rd, 4th, 5th or 6th subgroup of the (Mendelian) periodic system of elements, X designates an anion equivalent and n designates the number zero, one, two three or four depending on the charges of M and those of &pgr;I and &pgr;II, are novel and can be used as catalysts for the (co)polymerization of olefins, i-olefins, alkines and/or diolefins or for ring-opening polyaddition.Type: GrantFiled: October 1, 1999Date of Patent: July 23, 2002Assignee: Bayer AktiengesellschaftInventors: Karl-Heinz Aleksander Ostoja Starzewski, Warren Mark Kelly
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Patent number: 6395826Abstract: The present invention relates to mixtures prepared from (A) at least one linear, branched, or cyclic monomeric organosilane having at least two silicon atoms with hydrolyzable and/or condensation-crosslinking groups in which the silicon atoms are bonded to one another through at least one carbon atom in a linking unit, and (B) at least one boron- and/or aluminum-containing compound having the formula (I) RxM(OR′)3−x (I) wherein M is Al or B, x is 0, 1, or 2, R is C1-C6-alkyl, C6-C12-aryl, or (O)½, with the proviso that if R is (O)½, then the compound of the formula (I) is a chain when x is 1 and a cyclic or cage-form compound when x is 2, and each R′ is independently H, C1-C10-alkyl, or C6-C12-aryl. The invention further relates to hybrid materials prepared from such mixtures and to coatings produced therefrom.Type: GrantFiled: March 24, 1999Date of Patent: May 28, 2002Assignee: Bayer AktiengesellschaftInventors: Michael Mager, Steffen Hofacker
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Patent number: 6353047Abstract: Metal organic compounds comprising three or four atoms of cobalt or nickel, each linked through oxygen atoms to aluminum, silicon or titanium and comprising a combination of aliphatic and aromatic carboxylic acid residues are useful as adhesion promoters to promote the adhesion of brass coated steel to vulcanized rubber.Type: GrantFiled: June 21, 2000Date of Patent: March 5, 2002Assignee: Rhodia LimitedInventors: John Michael Hilton, Ian Michael Hawkins, Jonathan Colin Wilson
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Patent number: 6352953Abstract: Disclosed is a novel transition metal composition of a metaracycle structure represented by the formula wherein M1 is an element of Group IVB in the Periodic Table, M2 is an element of Group IIIA in the Periodic Table, R1 and R2 each are for instance a cyclopentadienyl group, R3 and R4 each are for instance a hydrocarbon group, R5 and R6 each are a hydrogen atom and R7 and R8 indicate an indan ring formed by bonding to each other.Type: GrantFiled: October 9, 2000Date of Patent: March 5, 2002Assignee: Japan Polyolefins Co., Ltd.Inventors: Takashi Seki, Hiroyuki Shimizu, Akira Sano
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Patent number: 6344584Abstract: Novel styrene sulfonate-based polymers and cation exchange membranes which are particularly suitable for use in electrodialysis of whey and improved methods for electrodialysis of whey are disclosed.Type: GrantFiled: February 16, 2001Date of Patent: February 5, 2002Assignee: Ionics, IncorporatedInventors: Juchui Ray Lin, Leon Mir, Yongchang Zheng
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Patent number: 6284905Abstract: A Group 4 transition metal complex containing a boron or aluminum bridging group containing a nitrogen containing electron donating group, especially an amido group.Type: GrantFiled: March 10, 2000Date of Patent: September 4, 2001Assignees: The Dow Chemical Company, The Regents of the University of MichiganInventors: Arthur J. Ashe, III, David D. Devore, Xinggao Fang, Kevin A. Frazier, D. Patrick Green, Jasson T. Patton, Francis J. Timmers
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Patent number: 6262200Abstract: The (polyfluoroaryl)fluoroanions of aluminum, gallium, and indium are novel weakly coordinating anions which are are highly fluorinated. (Polyfluoroaryl)fluoroanions of one such type contain at least one ring substituent other than fluorine. These (polyfluoroaryl)fluoroanions of aluminum, gallium, and indium have greater solubility in organic solvents, or have a coordinative ability essentially equal to or less than that of the corresponding (polyfluoroaryl)fluoroanion of aluminum, gallium, or indium in which the substituent is replaced by fluorine. Another type of new (polyfluoroaryl)fluoroanion of aluminum, gallium, and indium have 1-3 perfluorinated fused ring groups and 2-0 perfluorophenyl groups.Type: GrantFiled: June 10, 1999Date of Patent: July 17, 2001Assignee: Northwestern UniversityInventors: Tobin J. Marks, You-Xian Chen
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Patent number: 6255507Abstract: Described are methods of preparing organometallic complexes, including cyclopentadienyliron (II) arene complexes.Type: GrantFiled: September 18, 1998Date of Patent: July 3, 2001Assignee: 3M Innovative Properties CompanyInventor: Roger A. Mader
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Patent number: 6248914Abstract: A compound useful as a catalyst or as a cocatalyst in combination with a Group 3-10 metal for addition polymerizations corresponding to the formula: [M′Q12L′I′]+(Arf3MQ2)— wherein: M′ is aluminum, gallium, or indium.Type: GrantFiled: April 9, 1999Date of Patent: June 19, 2001Assignee: The Dow Chemical CompanyInventor: Jerzy Klosin
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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: 6214416Abstract: A coating composition comprising (A) a hydrolyzate or partial condensate, or both, of an organosilane compound represented by the following formula (1), (R1)nSi(OR2)4−n (1) wherein R1 is a hydrogen atom or a monovalent organic group having 1-8 carbon atoms, R2 is an alkyl group having 1-5 carbon atoms or an acyl group having 1-6 carbon atoms, and n is an integer from 0 to 2, (B) at least one ultraviolet ray absorbing component selected from the group consisting of fine semiconductor particles, semiconductor sols, and organic compounds having ultraviolet ray absorbing capability, and (C1) water and/or an organic solvent. The coating composition exhibits excellent storage stability and produces coating films with good appearance, superior adhesion properties, weather resistance, high hardness, and superb UV absorbing capability.Type: GrantFiled: January 26, 1999Date of Patent: April 10, 2001Assignee: JSR CorporationInventors: Toshinori Sakagami, Mibuko Shimada
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Patent number: 6214760Abstract: A composition comprising a mixture of aluminum containing Lewis acids said mixture corresponding to the formula: (Arf3Al)(AlQ13)y(—AlQ2—O—)z where; Arf is a fluorinated aromatic hydrocarbyl moiety of from 6 to 30 carbon atoms; Q1 is C1-20 alkyl; Q2 is C1-20 hydrocarbyl, optionally substituted with one or more groups which independently each occurrence are hydrocarbyloxy, hydrocarbylsiloxy, hydrocarbylsilylamino, di(hydrocarbylsilyl)amino, hydrocarbylamino, di(hydrocarbyl)amino, di(hydrocarbyl)phosphino, or hydrocarbylsulfido groups having from 1 to 20 atoms other than hydrogen, or, optionally, two or more Q2 groups may be covalently linked with each other to form one or more fused rings or ring systems; y is a number from 0 to 1.0; z is a number from 0.1 to 20; and the moieties (Arf3Al)(AlQ13)y may exist as discrete entities or dynamic exchange products.Type: GrantFiled: June 11, 1999Date of Patent: April 10, 2001Assignee: The Dow Chemical CompanyInventors: Eugene Y. Chen, William J. Kruper, Jr., Gordon R. Roof
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Patent number: 6207130Abstract: A method has been developed for the solution-based metal exchange of carboxylato-alumoxanes [Al(O)x(OH)y(O2CR)z]n with a wide range of metal cations. Metal-exchanged carboxylato-alumoxanes are new, particularly those in which about 10% to about 50% or more of the Al ions are exchanged for other metal ions. Additionally, the carboxylic acid ligands can be stripped from the boehmite core of metal-exchanged carboxylato-alumoxanes at low temperature leading to the formation of metal-exchanged boebmite particles. These new material phases can be used as intermediates for preparation of mixed metal aluminum oxide materials. Thermolysis of the metal-exchanged carboxylato-alumoxanes or metal-exchanged boehmite particles results in doped aluminas (M/Al2O3), binary (MAlOx), ternary (MM′AlOx) and even more complex metal aluminum oxide compounds, where M and M′ are metal ions other than those of aluminum and are preferably those of Lanthanide metals or transition metals.Type: GrantFiled: April 10, 1998Date of Patent: March 27, 2001Assignees: Rice University, TDA Research, Inc.Inventors: Aivaras Kareiva, Chuansheng Bai, Charles Jeffrey Harlan, D. Brent MacQueen, Andrew R. Barron, Ronald L. Cook
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Patent number: 6180764Abstract: A process for producing high-purity hydrotalcites by reacting alcohols or alcohol mixtures with at least one or more divalent metal(s) and at least one or more trivalent metal(s) and hydrolysing the resultant alcoholate mixture with water. The corresponding metal oxides can be produced by calcination.Type: GrantFiled: April 30, 1999Date of Patent: January 30, 2001Assignee: RWE-DEA Aktiengesellschaft fur Mineraloel und ChemieInventors: Klaus Noweck, Klaus Diblitz, Jan Sohiefler, Andrea Brasch
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Patent number: 6162935Abstract: Ansa bis(.mu.-substituted) Group 4 metal and aluminum compounds comprising a single Group 4 metal atom and two aluminum metal atoms corresponding to the formula: ##STR1## wherein: L' is a .pi.-bonded group,M is a Group 4 metal,Z is a divalent bridging group causing the complex to have an ansa structure,X independently each occurrence is a Lewis basic ligand group able to form a .mu.-bridging ligand group, and optionally the two X groups may be joined together, andA' independently each occurrence is an aluminum containing Lewis acid compound that forms an adduct with the metal complex by means of the .mu.Type: GrantFiled: June 11, 1999Date of Patent: December 19, 2000Assignee: The Dow Chemical CompanyInventor: Eugene Y. Chen
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Patent number: 6160145Abstract: Novel, highly effective catalyst compositions are described in which a low cost co-catalyst can be employed at very low aluminum loadings. Such compounds are composed of a cation derived from d-block or f-block metal compound, such as a metallocene, by loss of a leaving group, and an aluminoxate anion derived by transfer of a proton from a stable or metastable hydroxyaluminoxane to such leaving group. These catalyst compositions have extememly high catalytic activity and typically have high solubility in paraffinic solvents. Moreover they yield reduced levels of ash and result in improved clarity in polymers formed from such catalysts.Type: GrantFiled: October 23, 1998Date of Patent: December 12, 2000Assignee: Albemarle CorporationInventors: Feng-Jung Wu, Jamie R. Strickler
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Patent number: 6156916Abstract: A novel organometallic compound of formula M[(.mu.-OR').sub.2 M'R.sub.2 ].sub.2 can be vaporized at a low temperature and advantageously employed in the CVD of a heterometallic oxide film of the MM'.sub.2 O.sub.4 type, wherein M is a divalent element such as Be, Mg, Zn or Cd; M' is a Group 13 element such as Al or Ga; and R and R' are each independently a C.sub.1-10 alkyl group, with the proviso that if M is Mg, M' is not Al.Type: GrantFiled: September 24, 1999Date of Patent: December 5, 2000Assignee: Korea Institute of Science & TechnologyInventors: Yun-Soo Kim, Won-Yong Koh, Su-Jin Ku, Chang-Gyoun Kim, Kyu-Sang Yu
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Patent number: 6150544Abstract: Disclosed is a novel transition metal composition of a metallacycle structure represented by the formula ##STR1## wherein M.sup.1 is an element of Group IVB in the Periodic Table, M.sup.2 is an element of Group IIIA in the Periodic Table, R.sup.1 and R.sup.2 each are for instance a cyclopentadienyl group, R.sup.3 and R.sup.4 each are for instance a hydrocarbon group, R5 and R6 each are a hydrogen atom and R7 and R8 indicate an indan ring formed by bonding to each other.Type: GrantFiled: January 13, 1999Date of Patent: November 21, 2000Assignee: Japan Polyolefins Co., Ltd.Inventors: Takashi Seki, Hiroyuki Shimizu, Akira Sano
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Patent number: 6140521Abstract: Ansa bis(.mu.-substituted) Group 4 metal and aluminum compounds comprising a single Group 4 metal atom and two aluminum metal atoms corresponding to the formula: ##STR1## wherein: L' is a .pi.-bonded group,M is a Group 4 metal,J is nitrogen or phosphorus;Z is a divalent bridging group causing the complex to have an ansa structure,R' is an inert monovalent ligand;r is one or two;X independently each occurrence is a Lewis basic ligand group able to form a .mu.-bridging ligand group, and optionally the two X groups may be joined together, andA' independently each occurrence is an aluminum containing Lewis acid compound that forms an adduct with the metal complex by means of the .mu.Type: GrantFiled: June 11, 1999Date of Patent: October 31, 2000Assignee: The Dow Chemical CompanyInventors: Eugene Y. Chen, William J. Kruper, Jr., Peter N. Nickias, David R. Wilson
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Patent number: 6130302Abstract: Salts of (polyfluoroaryl)fluoroanions of aluminum, gallium, and indium are described. The (polyfluoroaryl)fluoroanions have the formula [ER'R"R'"F].sup..crclbar. wherein E is aluminum, gallium, or indium, wherein F is fluorine, and wherein R', R", and R'" is each a fluorinated phenyl, fluorinated biphenyl, or fluorinated polycyclic group.Type: GrantFiled: June 10, 1999Date of Patent: October 10, 2000Assignee: Northwestern UniversityInventors: Tobin J. Marks, You-Xian Chen
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Patent number: 6002032Abstract: The present invention relates to zwitterionic neutral transition metal compounds. The compounds are suitable as catalyst components for the polymerization of olefins.Type: GrantFiled: June 7, 1995Date of Patent: December 14, 1999Assignee: Targor GmbHInventors: Gerhard Erker, Bodo Temme, Michael Aulbach, Bernd Bachmann, Frank Kuber
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Patent number: 5998643Abstract: The process of preparing ansa-metallocene complexes in high yield by reacting a metal leaving group complex with an aluminum ansa-bis-cyclopentadienyl compound.Type: GrantFiled: January 15, 1999Date of Patent: December 7, 1999Assignee: University of Iowa Research FoundationInventors: Richard F. Jordan, Bakthavachalam Thiyagarajan, Xingwang Zhang
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Patent number: 5998644Abstract: A novel organometallic compound of formula M[(.mu.-OR').sub.2 M'R.sub.2 ].sub.2 can be vaporized at a low temperature and advantageously employed in the CVD of a heterometallic oxide film of the MM'.sub.2 O.sub.4 type, wherein M is a divalent element such as Be, Mg, Zn or Cd; M' is a Group 13 element such as Al or Ga; and R and R' are each independently a C.sub.1-10, alkyl group, with the proviso that if M is Mg, M' is not Al.Type: GrantFiled: August 11, 1998Date of Patent: December 7, 1999Assignee: Korea Research Institute of Chemical TechnologyInventors: Yun-Soo Kim, Won-Yong Koh, Su-Jin Ku, Chang-Gyoun Kim, Kyu-Sang Yu
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Patent number: 5925777Abstract: Novel Schiff base quinone complexes are provided. They are useful as anti-fading agents and filter dyes. The anti-fading agents are applicable to heat developable photosensitive materials, silver halide photosensitive materials, and optical recording materials.Type: GrantFiled: January 30, 1997Date of Patent: July 20, 1999Assignee: Fuji Photo Film Co., Ltd.Inventors: Toru Harada, Itsuo Fujiwara
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Patent number: 5912373Abstract: The conversion of the achiral meso form of an ansa-metallocene complex into the chiral rac form is carried out photochemically in the presence of a chiral auxiliary reagent.Type: GrantFiled: December 17, 1997Date of Patent: June 15, 1999Assignee: BASF AktiengesellschaftInventors: David Fischer, Franz Langhauser, Jurgen Kerth, Gunther Schweier, Hans-Herbert Brintzinger, Katrin Schmidt
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Patent number: 5886203Abstract: A process is provided for the production of metalorganic compounds by reacting a Grignard reagent with a Group II, Group III or Group V metal halide in a tertiary alkyl amine solvent to form a metalorganic adduct, isolating the adduct and dissociating the adduct to leave the metalorganic compound.Type: GrantFiled: July 14, 1997Date of Patent: March 23, 1999Assignee: Secretary of State For Defence Acting Through His Defence Evaluation & Research AgencyInventors: Anthony Copeland Jones, Simon Andrew Rushworth, Trevor Martin, Timothy John Whittaker, Richard William Freer
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Patent number: 5880303Abstract: This invention provides volatile, intramolecularly coordinated amido/amine alane complexes, H.sub.2 Al{(R.sup.1)(R.sup.2)NC.sub.2 H.sub.4 NR.sup.3 }, wherein R.sup.1, R.sup.2 and R.sup.3 are each independently H or C.sub.1 -C.sub.3 alkyl. These aluminum complexes show extremely high thermal stability and deposit high-quality aluminum films at low temperatures. They are capable of selectively depositing aluminum films on metallic or other electrically conductive substrates with wide process window.Type: GrantFiled: October 3, 1997Date of Patent: March 9, 1999Inventor: Hyungsoo Choi
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Patent number: 5859272Abstract: Disclosed is a novel transition metal compound represented by the following formula: ##STR1## wherein M is a transition metal, X is halogen or the like, R.sup.1 is a hydrocarbon group or the like, R.sup.2 is an aryl group substituted with a halogenated hydrocarbon group, and Y is a divalent silicon-containing group or the like.Also disclosed are an olefin polymerization catalyst component comprising the transition metal compound, an olefin polymerization catalyst comprising the olefin polymerization catalyst component, and a process for olefin polymerization using the olefin polymerization catalyst.An olefin polymerization catalyst component having high polymerization activity can be formed from the transition metal compound. By the use of the olefin polymerization catalyst or the process for olefin polymerization, polyolefins having a high melting point and a high molecular weight can be prepared with high polymerization activity.Type: GrantFiled: January 24, 1997Date of Patent: January 12, 1999Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Junichi Imuta, Daisuke Fukuoka, Masayasu Yoshida, Junji Saito, Terunori Fujita, Takashi Tashiro, Koji Kawaai, Takashi Ueda, Yoshihisa Kiso
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Patent number: 5854166Abstract: A trityl perfluorophenyl alumninate such as tris(2,2',2"-nonafluorobiphenyl) fluoroaluminate (PBA.sup.-) and its role as a cocatalyst in metallocene-mediated olefin polymerization is disclosed.Type: GrantFiled: August 18, 1997Date of Patent: December 29, 1998Assignee: Northwestern UniversityInventors: Tobin J. Marks, You-Xian Chen
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Patent number: 5840646Abstract: An olefin polymerization catalyst component is represented by the general formula (1); ##STR1## wherein M is titanium, zirconium or hafnium; each of A and A' is the same or different and is a hydrocarbon or halogenated hydrocarbon having 1 to 50 carbon atoms, or a hydrocarbon or halogenated hydrocarbon group having 1 to 50 carbon atoms and a substituent containing an oxygen atom; E is a residual group of an element of the 13th to 15th Groups capable of forming three bonds; each of R and R' is the same or different and is a halogen atom or a hydrocarbon group having 1 to 20 carbon atoms; R" represents a hydrocarbon or halogenated hydrocarbon group containing at least one hetero atom and having 1 to 20 carbon atoms. This component is used in a catalyst to produce an olefin polymer.Type: GrantFiled: August 9, 1996Date of Patent: November 24, 1998Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroaki Katayama, Masaaki Nabika, Akio Iami, Norio Kawamura, Hidenori Hanaoka
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Patent number: 5840950Abstract: In a process for converting the achiral meso form or the racemate of an ansa-metallocene complex or a mixture thereof into one of its enantiomers, the conversion is carried out photochemically in the presence of an enantiomerically pure auxiliary reagent.Type: GrantFiled: January 8, 1998Date of Patent: November 24, 1998Assignee: BASF AktiengesellschaftInventors: David Fischer, Franz Langhauser, Rainer Sturmer, Jurgen Kerth, Gunther Schweier, Hans-Herbert Brintzinger, Katrin Schmidt
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Patent number: 5792819Abstract: The present invention relates to zwitterionic neutral transition metal compounds. The compounds are suitable as catalyst components for the polymerization of olefins.Type: GrantFiled: June 7, 1995Date of Patent: August 11, 1998Assignee: Targor GmbHInventors: Gerhard Erker, Bodo Temme, Michael Aulbach, Bernd Bachmann, Frank Kuber
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Patent number: 5750456Abstract: A catalyst composition suitable for use in a process for the preparation of polyketones comprising a group VIII metal complex of a phosphonite of formula (I)R.sup.1 R.sup.2 E(OPR.sub.2.sup.3).sub.2.sup.-1 (I)where R.sup.1 and R.sup.2 are independently a halide or a hydrocarbyl.R.sup.3 is an optionally substituted hydrocarbylE is boron, aluminium or gallium.Preferred compositions are ?F.sub.2 B(OPPh.sub.2).sub.2 PdCl!.sub.2 and ?F.sub.2 B(OPPh.sub.2).sub.2 Pd(NCPh).sub.2 !.sup.+ ?BF.sub.4 !.sup.-.Type: GrantFiled: March 26, 1996Date of Patent: May 12, 1998Assignee: BP Chemicals LimitedInventor: Stephen John Dossett
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Patent number: 5712354Abstract: The invention relates to new transition metal compounds useful as olefin polymerization catalysts. They are characterized by the formula (V)(E)(W)M(L), which in which M is a transition metal, V, E, and W, is e.g.Type: GrantFiled: July 10, 1996Date of Patent: January 27, 1998Assignee: Mobil Oil CorporationInventors: James M. Boncella, David E. Richardson, Faisal A. Shafiq
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Patent number: 5679811Abstract: A very efficient catalyst system for the polymerization of 1-olefins consists of an aluminoxane and a metallocene which is a compound of the formula I ##STR1## in which R.sup.1 and R.sup.2 denote hydrogen atoms, halogen atoms or hydrocarbon radicals and R.sup.3 and R.sup.4 are mononuclear or polynuclear hydrocarbon radicals which can form a sandwich structure with the central atom and which are linked to one another by a --R.sup.6.sub.m --R.sup.5 --R.sup.7.sub.n -- bridge containing a hetero atom and consisting of one or several members.The catalyst system produces polymers having a high molecular weight.Type: GrantFiled: May 30, 1995Date of Patent: October 21, 1997Assignee: Hoechst AktiengesellschaftInventors: Andreas Winter, Volker Dolle, Martin Antberg, Jurgen Rohrmann, Walter Spaleck
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Patent number: 5675028Abstract: There are disclosed bisamido azides of gallium (Ga), aluminum (Al), or Indium (In) which when pyrolized in accordance with the invention, produce metal nitride films on a substrate. A representative example of a bisamido azide is bisdimethylamidogallium azide, (CH.sub.3)N).sub.2 GaN.sub.3.Type: GrantFiled: August 29, 1995Date of Patent: October 7, 1997Assignee: Board of Regents, The University of Texas SystemInventors: Deborah Ann Neumayer, Vikas Lakhotia
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Patent number: 5637745Abstract: Compounds of formula (I) are disclosed: ##STR1## wherein L.sup.1 is a main group atom, L.sup.2 is a neutral ligand, M is a transition element or a metal element of Group 13, 14, 15, or 16 of the Periodic Table, x is the number of coordination sites of M, R.sup.1 is a polymerizable group, R.sup.2, R.sup.3, and R.sup.4 are ligands, and R.sup.5 is an anionic ligand. The compounds or monomers of formula (I) are capable of conversion to polymers by combination with one or more other known monomers, such as methyl methacrylate. Such polymers can then be added as a binder in a paint formulation to make marine antifouling coating compositions. Also described is a method to prevent fouling on surfaces wherein a composition containing a metal complex compound of formula (II): ##STR2## wherein M, x, L.sup.2, n, and R.sup.4 have the same meaning as in formula (I), is applied to the surface susceptible to fouling.Type: GrantFiled: January 30, 1995Date of Patent: June 10, 1997Assignee: Elf Atochem North America, Inc.Inventors: Gary S. Silverman, Haewon L. Uhm, Kenneth K. S. Tseng
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Patent number: 5627295Abstract: A higher alcohol synthesis catalyst precursor comprises a homogeneous, highly crystalline, hydroxycarbonate compound containing copper, zinc and at least one element selected from the group consisting of aluminium, manganese and chromium. It also comprises at least one element from at least one of the followng groups of the Periodic Table of Elements: Group IIIA, Group IIIB, Group IVB and Group VIIB.Type: GrantFiled: March 21, 1994Date of Patent: May 6, 1997Assignee: Patlico International BVInventors: Alkeos Sofianos, Michael S. Scurrell
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Patent number: 5614596Abstract: A process for the preparation of polymetallooxanes employing inexpensive metal sources such as sand, alumina, and rutile involves dissolving one or more group IIIa, IVa, IVb metaloxy compounds such as metal oxides, metal hydroxides, or hydrates thereof with a di- or polyhydroxyl functional compound in the presence of an amine or alkanolamine. The polymetallooxane products are anionic, neutral, or mixed neutral/anionic moieties, which, when anionic, contain a metallic counterion (cation) or an ammonium or phosphonium ion. Mixed polymetallooxanes, as well as homo polymetallooxanes which may be prepared by the subject process, are suitable for use in preparing coatings, fibers, powders, ceramics, and glasses while being easily processable and economic to manufacture.Type: GrantFiled: January 12, 1995Date of Patent: March 25, 1997Assignee: Regents of University of MichiganInventors: Richard M. Laine, Clint R. Bickmore, Kurt F. Waldner
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Patent number: 5599761Abstract: An ionic catalyst system component comprising a water-stable anion having a plurality of lipophilic radicals covalently coordinated to and shielding a central, formal charge bearing metal or metalloid atom, in which the lipophilic radicals of the anion include substituted aromatic radicals useful for polymerizing olefins, diolefins, or acetylenically unsaturated monomers, either alone or in combination with each other or with other polymerizable monomers is disclosed. A method of using the anion to stabilize ionic catalyst systems during polymerization is also disclosed.Type: GrantFiled: May 25, 1995Date of Patent: February 4, 1997Assignee: Exxon Chemical Patents, Inc.Inventor: Howard W. Turner
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Patent number: 5596115Abstract: The present invention concerns new compounds of rhenium and aluminum corresponding to the general formula: O.sub.3 Re--O--[Al(OR)(L).sub.x --O].sub.n --ReO.sub.3 in which R is a hydrocarbyl residue, for example alkyl, cycloalkyl, alkenyl, aryl and aryl or cycloalkyl which are substituted, containing from 1 to 40 carbon atoms, which residue can be substituted by alkoxy groups or by halogens, L is the synthesis solvent, x is equal to 0 or 1 and n is an integer of from 1 to 10. The invention also concerns derived compounds of the formula O.sub.3 Re(L')--O--[Al(OR)(L).sub.x --O].sub.n --ReO.sub.3 (L') in which L' is a stabilising ligand. The invention also concerns the preparation of such compounds and the use thereof in the preparation of catalysts.Type: GrantFiled: November 6, 1995Date of Patent: January 21, 1997Assignee: Institut Francais Du PetroleInventor: Dominique Commereuc
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Patent number: 5567832Abstract: The present invention relates to polymeric multinary azanes built up from units of the general formula [E(NR.sup.1 R.sup.2).sub.a (NR.sup.3).sub.b/2 ], wherein E may be B,Al,Ga,In,Si,Ge,Ti, Zr, Hf,V,Nb,Ta,Cr,Mo or W and R.sup.1,R.sup.2,R.sup.3 may be H, C.sub.1 -C.sub.6 alkyl, vinyl or phenyl; methods for the preparation of these polymers and their use as precursors for high-performance ceramics.Type: GrantFiled: April 25, 1994Date of Patent: October 22, 1996Assignee: Bayer AGInventors: Nils Perchenek, Hans-Peter Baldus, Josua L offelholz, Martin Jansen
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Patent number: RE37573Abstract: Process for the preparation of an olefin polymer using metallocenes containing specifically substituted indenyl ligands A highly effective catalyst system for the polymerization of olefins comprises a cocatalyst, preferably an aluminoxane, and a metallocene of the formula I in which, preferably M1 is Zr or Hf, R1 and R2 are alkyl or halogen, R5 is hydrogen or alkyl, R3 and R4 are alkyl, where R3, R4 and R5 may be halogenated, —(CR7R8)m—R6—(CR7R8)n— is a single- or multi-membered chain in which R6 may also be a (substituted) heteroatom, and m+n is zero or 1.Type: GrantFiled: February 19, 1999Date of Patent: March 5, 2002Assignee: Basell Polyolefin GmbHInventors: Andreas Winter, Frank Kueber, Walter Spaleck, Herbert Riepl, Wolfgang A. Herrmann, Volker Dolle, Juergen Rohrmann