Patents Assigned to Repsol Quimica
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Publication number: 20100004877Abstract: The present invention relates to a device that simulates the conditions causing the aging of polymeric material used in agricultural environments in order to obtain information about the rate of degradation of the material. For this purpose, the device of the invention exposes a test specimen of polymeric material to radiation, temperature, mechanical stress, humidity, etc. conditions and checks the effect produced in the material.Type: ApplicationFiled: July 3, 2008Publication date: January 7, 2010Applicant: REPSOL QUIMICA, S.A.Inventors: Antonio Marin Trujillo, Jose Fagoaga Lopez, Fernando Rull Perez
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Patent number: 7294286Abstract: A cocktail composition for liquid scintillation measurements, formed by a solution of a) two solvents, one aromatic and the other one polar, b) one additive enhancing the luminous efficiency, c) two scintillators, one primary and the other one secondary, d) one extracting agent, and e) at least one anionic or non-ionic surfactant. Without prior sample or vial treatments, this cocktail allows direct incorporation of a great number of radionuclides, at least 17, in an hydrochloric or nitric aqueous solution, providing stable samples for a period of several weeks.Type: GrantFiled: October 29, 2004Date of Patent: November 13, 2007Assignee: Repsol Quimica, S.A.Inventors: Leonor Rodriguez Barquero, Jose Maria Los Arcos Merino
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Publication number: 20070135298Abstract: The double metal cyanide (DMC) catalyst comprises (1) one or more double metal cyanides; (2) one or more organic ligands; (3) water; and (4) one or more crown ether ligands, with the condition that the organic ligand (2) is not a crown ether ligand (4). Said DISC catalysts are useful for the production of polyether polyols by a process that comprises the addition of an alkylene oxide to an initiation with active hydrogens, in the presence of said DMC catalyst.Type: ApplicationFiled: February 7, 2007Publication date: June 14, 2007Applicant: Repsol QuimicaInventors: Mariano Mellado, Maria Dolores Gonzalez
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Patent number: 7211538Abstract: Catalyst component for the polymerization of alpha-olefins in solution, in suspension, in gas phase at low and high pressure and temperature or in mass at high pressures and high or low temperatures, characterized in that is defined by general formulas I or II wherein: R, equal to or different from each other, is hydrogen or a radical which contains from 1 to 20 carbon atoms; this group optionally contains heteroatoms of groups 14 to 16 of the periodic table of the elements and boron; at least one group R contains a group OSiR?3, Q is selected from a group comprising: boron or an element from groups 14 or 16 of the periodic table; m value can change from 1 to 4 and it preferably is 1 or 2; L, equal to or different from each other, is a cyclic organic group united to M through a ? bond, or it is an atom from groups 15 or 16 of the periodic table; L1 and L2, equal to or different from each other, have the same meaning of L; M is a metal from groups 3, 4, 10 of the periodic table, lanthanide or actinide.Type: GrantFiled: July 16, 2004Date of Patent: May 1, 2007Assignee: Repsol Quimica S.A.Inventors: Jose Sancho Royo, Gerardo Hidalgo Llinás, Antonio Muñoz-Escalona Lafuente, Francisca Martínez Núñez, Carlos Martín Marcos, Pilar Lafuente Cañas, Begoña Peña García
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Patent number: 7179440Abstract: In this invention, a process to obtain hydrogen peroxide solutions by means of the direct reaction of hydrogen and oxygen in the presence of a solvent and of catalysts constituted from noble or semi-noble metals, or combinations of several of these metals, supported on a halogen-free acid resin, is described.Type: GrantFiled: March 13, 2003Date of Patent: February 20, 2007Assignee: Repsol Quimica, S.A.Inventors: Pilar De Frutos Escrig, Jose Miguel Campos Martin, Jose Luis Garcia Fierro, Encapnacion Cano Serrano, Gema Blanco Brieva
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Patent number: 7148173Abstract: Heterogeneous catalytic compositions obtained by reacting a porous inorganic support with an alumoxane and subsequently supporting at least one metallocene compound thereon. A process for polymerization of ?-olefins in a slurry or in a gas phase, the process catalyzed by such heterogeneous catalytic compositions.Type: GrantFiled: April 26, 1999Date of Patent: December 12, 2006Assignee: Repsol Quimica, S.A.Inventors: Antonio Muñoz-Escalona Lafuente, Pilar Lafuente Cañas, Jose Sancho Royo, Begoña Peña Garcia, Carlos Martin Marcos
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Publication number: 20050234284Abstract: Process for the removal of sodium from sodium-containing heavy fractions from a process for the combined production of styrene and propylene oxide comprising admixing an aqueous solution of an organic carboxylic acid to the heavy fraction at a temperature comprised between 20° C. and 100° C., and separation of the organic phase from the aqueous phase, wherein the organic phase contains less than 0.5% by weight of polymeric solids. The obtained organic phase has low viscosity and ash content and can be used directly as a fuel.Type: ApplicationFiled: October 29, 2004Publication date: October 20, 2005Applicant: Repsol Quimica, S.A. a corporation of SpainInventors: Pilar de Frutos Escrig, Eva Maria Garcia Biosca
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Publication number: 20050192467Abstract: The double metal cyanide (DMC) catalyst comprises (1) one or more double metal cyanides; (2) one or more organic ligands; (3) water; and (4) one or more crown ether ligands, with the condition that the organic ligand (2) is not a crown ether ligand (4). Said DMC catalysts are useful for the production of polyether polyols by a process that comprises the addition of an alkylene oxide to an initiator with active hydrogens, in the presence of said DMC catalyst.Type: ApplicationFiled: June 9, 2004Publication date: September 1, 2005Applicant: Repsol Quimica, S.A.Inventors: Mariano Mellado, Maria Dolores Gonzalez
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Patent number: 6930210Abstract: The invention relates to a process to produce high-purity, low-odour polyether polyols, with very low levels of catalytic residues, by means of alkene oxide polyaddition reactions to substances that contain active hydrogens in the presence double metal cyanides as catalysts. The process is characterized in that the reaction is carried out in the presence of sepiolites and/or by subsequent treatment with sepiolites of the polyether polyols produced with double metal cyanides in the absence of sepiolites.Type: GrantFiled: February 25, 2003Date of Patent: August 16, 2005Assignee: Repsol Quimica S.A.Inventors: Mariano Malaga Mellado, Dolores Blanco Gonzalez, Beatriz Montalvo Barroso
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Patent number: 6927252Abstract: The process consists of making react (i) an alkylene oxide polyether polyol, (ii) an organic compound which has an ethylenic unsaturation and a hydroxyl, carboxyl, anhydride, isocyanate or epoxy group and (iii) an alkylene oxide selected from ethylene oxide, propylene oxide and mixtures thereof, in the presence of an effective quantity of a potassium naphthenate catalyst. The unsaturated polyester polyols produced have a reduced degree of unsaturation and are useful in the synthesis of polymeric polyols with good viscosity, filterability and particle size properties, suitable for the production of cellular polyurethane compounds.Type: GrantFiled: June 29, 2004Date of Patent: August 9, 2005Assignee: Repsol Quimica, S.A.Inventors: Mariano Malaga Mellado, Julian Gonzalez Rivero
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Publication number: 20040267056Abstract: The process consists of subjecting a crude polyether polyol produced by catalysis with double metal cyanide (DMC) catalysts to a microfiltration or ultrafiltration process. The resulting polyether polyol is substantially pure, has high transparency and a very low content of DMC catalyst residues.Type: ApplicationFiled: June 29, 2004Publication date: December 30, 2004Applicant: Repsol Quimica, S.A.Inventors: Mariano Malaga Mellado, Beatriz Montalvo Barroso
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Publication number: 20040266977Abstract: The process consists of making react (i) an alkylene oxide polyether polyol, (ii) an organic compound which has an ethylenic unsaturation and a hydroxyl, carboxyl, anhydride, isocyanate or epoxy group and (iii) an alkylene oxide selected from ethylene oxide, propylene oxide and mixtures thereof, in the presence of an effective quantity of a potassium naphthenate catalyst. The unsaturated polyester polyols produced have a reduced degree of unsaturation and are useful in the synthesis of polymeric polyols with good viscosity, filterability and particle size properties, suitable for the production of cellular polyurethane compounds.Type: ApplicationFiled: June 29, 2004Publication date: December 30, 2004Applicant: Repsol Quimica, S.A., Paseo de la CastellanaInventors: Mariano Malaga Mellado, Julian Gonzalez Rivero
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Patent number: 6822103Abstract: Oxidized compounds are produced in a continuous integrated process in liquid phase, which comprises: Step I, synthesis of non acidic hydrogen peroxide solutions by direct reaction between hydrogen and oxygen by catalytic reaction utilizing a noble metal catalyst. Step II, this hydrogen peroxide solution is directly mixed with an organic substrate, a suitable catalyst and optionally a solvent. The integrated process requires no treatment step and is particularly well adapted to the production of propylene oxide.Type: GrantFiled: June 3, 2003Date of Patent: November 23, 2004Assignee: Repsol Quimica, S.A.Inventors: Pilar De Frutos Escrig, Ana Padilla Polo, Jose Manuel Riesco Garcia, Jose Miguel Campos Martin, Gema Blanco Brieva, Encarnacion Cano Serrano, MaDel Carmen Capel Sanchez, Jose Luis Garcia Fierro
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Publication number: 20040151658Abstract: Oxidized compounds are produced in a continuous integrated process in liquid phase, which comprises: Step I, synthesis of non acidic hydrogen peroxide solutions by direct reaction between hydrogen and oxygen by catalytic reaction utilizing a noble metal catalyst. Step II, this hydrogen peroxide solution is directly mixed with an organic substrate, a suitable catalyst and optionally a solvent. The integrated process requires no treatment step and is particularly well adapted to the production of propylene oxide.Type: ApplicationFiled: June 3, 2003Publication date: August 5, 2004Applicant: REPSOL QUIMICA, S.A.Inventors: Pilar De Frutos Escrig, Ana Padilla Polo, Jose Manuel Riesco Garcia, Jose Miguel Campos Martin, Gema Blanco Brieva, Encarnacion Cano Serrano, Ma Del Carmen Capel Sanchez, Jose Luis Garcia Fierro
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Patent number: 6753436Abstract: The invention concerns olefin polymerization catalyst component comprising an organometallic compound of general formula I wherein: M is a transition metal of groups 3, 4-10, lanthanide or actinide of the periodic table of the elements; each R is independently a structural bridge rigidly connecting two ligands L1, L2 and L3 and is constituted by 1 to 4 chain atoms selected from carbon, silicon, germanium, oxygen, boron; m, n and o are 0 or 1, with the proviso that m+n+o is 2 or 3; L1 is a ligand of the cyclopentadienyl type or is isolobal to cyclopentadienyl, L2 is a ligand of the cyclopentadienyl type or is isolobal to cyclopentadienyl, or a monovalent anionic ligand selected from the group consisting of N, P, B when m+n=2, it is selected from the group consisting of NR1, PR1, BR1, O and S when m+n=1; L3 is a monovalent anionic ligand selected from the group consisting of N, P, B when n+o=2, it is selected from the group consisting of NR1, PR1Type: GrantFiled: January 18, 2002Date of Patent: June 22, 2004Assignee: Repsol Quimica, S.A.Inventors: Pascual Royo Gracia, Jesus Cano Sierra, Miguel Angel Flores De Paco, Begoña Peña Garcia
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Patent number: 6639101Abstract: The procedure consists of the catalytic thermal decomposition of a carbamate in the presence of natural or synthetic carbamates as catalysts. Isocyanates with high yields and high reaction speeds are formed selectively.Type: GrantFiled: May 31, 2001Date of Patent: October 28, 2003Assignee: Repsol Quimica, S.A.Inventors: Sergio Castillon Miranda, Carmen Claver Cabrero, Elena Fernandez Gutierrez, Pilar Salagre Carnero, Marc Serra Queralt, Pedro Uriz Sola
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Patent number: 6635778Abstract: Catalyst component for the polymerization of alpha-olefins of general formula (I) wherein: M is a transition metal of groups 3, 4-10 of the periodic table of the elements, Each X group can be equal or different and it is hydride, halogen, alkyl, cycloalkyl, aryl, alkenyl, arylalkyl, arylalkenyl or alkylaryl with 1 to 20 carbon atoms, linear or branched. L is a neutral Lewis base A is a ring with delocalized &pgr; electrons, that directly coordinates to the transition metal M. Each E group can be equal to or different from each other and it is BRIII, CRIV2, SiRIII2, GeRIII2; at least one E is SiRIII2. RII is hydrogen, alkyl, cycloalkyl, aryl, alkenyl, arylalkyl, arylalkenyl or alkylaryl from 1 to 20 carbon atoms, linear or branched, whose hydrogens can be substituted by SiR3, GeR3, OR, NR2, OSiR3 or any combination of thereof. It can moreover form a condensed ring through another bond with E.Type: GrantFiled: October 30, 1997Date of Patent: October 21, 2003Assignee: Repsol Quimica S.A.Inventors: Jose Sancho Royo, Antonio Muñoz-Escalona Lafuente, Begoña Peña Garcia, Carlos Martín Marcos
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Patent number: 6605676Abstract: The process is characterized by the use of catalyst systems consisting of a single metallocene catalyst activated with mixtures of at least 2 co-catalysts. The co-catalysts are aluminium alkyls, aluminoxanes or boron compounds. Different active centers are produced in the catalyst through the use of these mixed co-catalyst systems, each having different rates of initiation and completion of the polymerization reaction, which give rise to polyolefins with different molecular weights, resulting in products with broad bimodal or multimodal molecular weight distributions and the incorporation of co-monomer can be controlled by appropriate selection of the metallocene and use of combinations of different types of co-catalysts, as well as by varying the reactor pressure, the reaction temperature and the molar ratios between the various components of the catalyst system.Type: GrantFiled: December 28, 1995Date of Patent: August 12, 2003Assignee: Repsol Quimica, S.A.Inventors: Wilfried Michiels Vega, Antonio Munoz-Escalona
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Patent number: 6586358Abstract: The present invention relates to a bidenitate diimino-complex of nickel or palladium containing at least one group OSi(R)3 wherein each R, equal to or different from each other, is selected from the group consisting of: C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C2-C20 alkenyl, C7-C20 arylalkyl, C7-C20 alkylaryl, C8-C20 arylalkenyl, and C8-C20 alkenylaryl, linear or branched, preferably each R is independently methyl, ethyl or propyl. The present invention also relates to the process for the preparation of bidentate diimino complexes of nickel and palladium as well as the process for their use in olefin polymerization.Type: GrantFiled: March 12, 2001Date of Patent: July 1, 2003Assignee: Repsol Quimica, S.A.Inventors: Luis Mendez Llatas, Antonio Muñoz-Escalona Lafuente, Juan Campora Perez, Ernesto Carmona Guzman, Manuel Lopez Reyes
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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