Patents by Inventor Okan Max Ekiner
Okan Max Ekiner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8268041Abstract: A suspension of inorganic particles, a copolymer comprising soft segments and hard segments, and a solvent may be extruded through a spinnerette to produce inorganic/organic composite hollow precursor fibers. The precursor fibers may be sintered. The fibers may be utilized in a gas separation module for separation of a gas mixture or production of syngas. The fibers may be installed in the gas separation module after sintering or they may be sintered after installation.Type: GrantFiled: June 23, 2009Date of Patent: September 18, 2012Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Okan Max Ekiner, Timothy L. Murray, Nicolas Richet
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Patent number: 8101009Abstract: This abstract discusses membranes needed to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from various petrochemical and oil refining streams. Membranes are needed that provide a resistance to interaction with process components or contaminants, provide the mechanical strength required to withstand high membrane differential pressures and high process temperatures, and exhibit sufficient maximum strain such that membranes are not brittle and can easily be formed into desirable membrane forms. Membranes of polyimide polymers, particularly polyimide polymers sold under the trade name P-84, are annealed in a controlled annealing step to improve the mechanical properties of the polymers used to make separation membranes.Type: GrantFiled: September 8, 2008Date of Patent: January 24, 2012Assignee: L'Air Liquide Societe Anonyme pour l'Etude Et L'Exploitation des Procedes Georges ClaudeInventors: Okan Max Ekiner, John W. Simmons
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Publication number: 20100018394Abstract: A suspension of inorganic particles, a copolymer comprising soft segments and hard segments, and a solvent may be extruded through a spinnerette to produce inorganic/organic composite hollow precursor fibers. The precursor fibers may be sintered. The fibers may be utilized in a gas separation module for separation of a gas mixture or production of syngas. The fibers may be installed in the gas separation module after sintering or they may be sintered after installation.Type: ApplicationFiled: June 23, 2009Publication date: January 28, 2010Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Okan Max EKINER, Timothy L. MURRAY, Nicolas RICHET
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Publication number: 20090227744Abstract: This abstract discusses membranes needed to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from various petrochemical and oil refining streams. Membranes are needed that provide a resistance to interaction with process components or contaminants, provide the mechanical strength required to withstand high membrane differential pressures and high process temperatures, and exhibit sufficient maximum strain such that membranes are not brittle and can easily be formed into desirable membrane forms. Membranes of polyimide polymers, particularly polyimide polymers sold under the trade name P-84, are annealed in a controlled annealing step to improve the mechanical properties of the polymers used to make separation membranes.Type: ApplicationFiled: September 8, 2008Publication date: September 10, 2009Inventors: Okan Max EKINER, John W. Simmons
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Publication number: 20090169884Abstract: A dispersion of inorganic particles, a copolymer comprising soft segments and hard segments, and a solvent may be extruded through a spinnerette to produce inorganic/organic composite hollow precursor fibers. The precursor fibers may be sintered to produce hollow ceramic fibers.Type: ApplicationFiled: June 30, 2008Publication date: July 2, 2009Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Okan Max Ekiner, Timothy L. Murray, Nicholas Richet
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Patent number: 7422623Abstract: This abstract discusses membranes needed to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from various petrochemical and oil refining streams. Membranes are needed that provide a resistance to interaction with process components or contaminants, provide the mechanical strength required to withstand high membrane differential pressures and high process temperatures, and exhibit sufficient maximum strain such that membranes are not brittle and can easily be formed into desirable membrane forms. Membranes of polyimide polymers, particularly polyimide polymers sold under the trade name P-84, are annealed in a controlled annealing step to improve the mechanical properties of the polymers used to make separation membranes.Type: GrantFiled: March 2, 2005Date of Patent: September 9, 2008Assignee: L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Okan Max Ekiner, John W. Simmons
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Patent number: 7399897Abstract: A process for the separation or concentration of olefinic hydrocarbons from mixtures of olefinic and paraffinic hydrocarbons uses a polyimide membrane, The process is well suited to separating propylene from propylene/propane mixtures. The novel method the membrane exhibits good resistance to plasticization by hydrocarbon components in the gas mixture under practical industrial process conditions.Type: GrantFiled: January 24, 2007Date of Patent: July 15, 2008Assignee: L'Air Liquide Societe Anonyme A Directoire et Conseil de Surveillance pour l'Etude et l'Exploration des Procedes George ClaudeInventors: Ian C. Roman, John W. Simmons, Okan Max Ekiner
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Patent number: 7393383Abstract: Membranes are used to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from various petrochemical and oil refining streams. Membranes are discussed that provide a resistance to interaction with process components or contaminants, which can lead to plasticizing of the membrane, while providing the mechanical strength required to withstand high membrane differential pressures and high process temperatures. Membranes of blended polymers are used to improve the mechanical strength of the polymers used to make separation membranes. Specifically, polyimide polymers are combined with a blend polymer that is a polyamide and/or a polyamide-imde polymer. The resulting polymer mix is used to produce various forms of high strength, chemically resistant membranes, including hollow-fiber membranes that are suitable for high pressure, high temperature applications.Type: GrantFiled: January 14, 2005Date of Patent: July 1, 2008Assignee: L'Air Liquide, Societe Anonyme A Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Okan Max Ekiner, John Warren Simmons
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Patent number: 7018445Abstract: The present invention provides a selectively gas permeable membrane that has a superior combination of permeability and selectivity. The membrane composition includes a Type 1 copolyimide uniformly blended with a Type 2 copolyimide, which polymers are defined by chemical structure more specifically in this disclosure. The invention also provides a method of using the membrane of the copolyimide blend to separate components of gas mixtures.Type: GrantFiled: August 15, 2003Date of Patent: March 28, 2006Assignee: L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance Pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: John W. Simmons, Okan Max Ekiner
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Publication number: 20040147796Abstract: A process for the separation or concentration of olefinic hydrocarbons from mixtures of olefinic and paraffinic hydrocarbons uses a polyimide membrane. The process is well suited to separating propylene from propylene/propane mixtures. The novel method The membrane exhibits good resistance to plasticization by hydrocarbon components in the gas mixture under practical industrial process conditions.Type: ApplicationFiled: January 27, 2003Publication date: July 29, 2004Inventors: Ian C. Roman, John W. Simmons, Okan Max Ekiner
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Publication number: 20040107830Abstract: The present invention provides a selectively gas permeable membrane that has a superior combination of permeability and selectivity. The membrane composition includes a Type 1 copolyimide uniformly blended with a Type 2 copolyimide, which polymers are defined by chemical structure more specifically in this disclosure. The invention also provides a method of using the membrane of the copolyimide blend to separate components of gas mixtures.Type: ApplicationFiled: August 15, 2003Publication date: June 10, 2004Inventors: John W. Simmons, Okan Max Ekiner
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Patent number: 6663805Abstract: Isopycnic or asymmetric mixed matrix hollow fiber membranes for gas separation can be made by a continuous spinning process. Mixed matrix membranes are characterized by a continuous phase of selectively gas permeable polymer in which are uniformly dispersed discrete absorbent particles such as molecular sieves that also have selectivity enhancing properties. The fibers can be monolithic in which the fiber wall is entirely mixed matrix, or composite in which an active mixed matrix layer is positioned adjacent to a supporting substrate layer. The novel mixed matrix hollow fiber membranes provide higher selectivity than dense film membranes of the continuous phase polymer.Type: GrantFiled: September 20, 2002Date of Patent: December 16, 2003Assignee: L'Air Liquide Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Okan Max Ekiner, Sudhir S. Kulkarni
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Patent number: 6383265Abstract: Improved polymer blends, and polymer blend membranes having improved mechanical properties are provided by alteration of the critical solution temperature of the polymer blend spinning solution through the incorporation of organic or inorganic complexing agents.Type: GrantFiled: August 15, 2001Date of Patent: May 7, 2002Assignee: L'Air Liquide Societe Anonyme A Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventor: Okan Max Ekiner
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Publication number: 20020028863Abstract: Improved polymer blends, and polymer blend membranes having improved mechanical properties are provided by alteration of the critical solution temperature of the polymer blend spinning solution through the incorporation of organic or inorganic complexing agents.Type: ApplicationFiled: August 15, 2001Publication date: March 7, 2002Inventor: Okan Max Ekiner
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Patent number: 6296684Abstract: Improved polymer blends, and polymer blend membranes having improved mechanical properties are provided by alteration of the critical solution temperature of the polymer blend spinning solution through the incorporation of organic or inorganic completing agents.Type: GrantFiled: May 7, 1999Date of Patent: October 2, 2001Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventor: Okan Max Ekiner
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Patent number: 5922791Abstract: Improved polymer blends, and polymer blend membranes having improved mechanical properties are provided by alteration of the critical solution temperature of the polymer blend spinning solution through the incorporation of organic or inorganic complexing agents.Type: GrantFiled: December 19, 1997Date of Patent: July 13, 1999Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventor: Okan Max Ekiner
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Patent number: 5917137Abstract: The invention provides for gas separation membranes with superior gas transport properties made from certain two- and three-component blends of polyethersulfone with aromatic polyimides, to provide a gas separation membrane with superior productivity and good selectivity.Type: GrantFiled: February 27, 1997Date of Patent: June 29, 1999Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventor: Okan Max Ekiner
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Patent number: 5820659Abstract: Gas separation membranes having enhanced selectivity for a mixture of gases is disclosed. The membranes may be asymmetric or multicomponent. The membranes surprisingly provide selectivity for gases in a mixture that approaches the relative selectivity of the single gas components. Preferably the membrane provides selectivity for a mixture of gases which is at least 65%, preferably 80%, of the relative selectivity of the corresponding single gases. A process for making improved gas separation membranes is also disclosed.Type: GrantFiled: March 28, 1997Date of Patent: October 13, 1998Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et, L'Exploitation des Procedes Georges ClaudeInventors: Okan Max Ekiner, Gregory Kendall Fleming