Patents by Inventor Ronald J. McKinney
Ronald J. McKinney 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: 8394981Abstract: The invention provides a process for hydrocyanation, comprising: contacting 2-pentenenitrile with hydrogen cyanide at a temperature in the range of about 0° C. to about 150° C. in the presence of at least one Lewis acid promoter and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one bidentate phosphite ligand selected from a member of the group represented by Formula I and Formula II, in which all like reference characters have the same meaning, except as further explicitly limited: wherein R1 and R5 are independently selected from the group consisting of C1 to C5 hydrocarbyl; and R2, R3, R4, R6, R7 and R8 are independently selected from the group consisting of H and C1 to C4 hydrocarbyl.Type: GrantFiled: February 7, 2011Date of Patent: March 12, 2013Assignee: Invista North America S.A R.L.Inventors: James Michael Garner, Christian P. Lenges, Ronald J. McKinney, Wilson Tam
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Publication number: 20120035387Abstract: The invention provides a process for hydrocyanation, comprising: contacting 2-pentenenitrile with hydrogen cyanide at a temperature in the range of about 0° C. to about 150° C. in the presence of at least one Lewis acid promoter and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one bidentate phosphite ligand selected from a member of the group represented by Formula I and Formula II, in which all like reference characters have the same meaning, except as further explicitly limited: wherein R1 and R5 are independently selected from the group consisting of C1 to C5 hydrocarbyl; and R2, R3, R4, R6, R7 and R8 are independently selected from the group consisting of H and C1 to C4 hydrocarbyl.Type: ApplicationFiled: February 7, 2011Publication date: February 9, 2012Applicant: INVISTA NORTH AMERICA S.A R.L.Inventors: James Michael Garner, Christian P. Lenges, Ronald J. McKinney, Wilson Tam
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Patent number: 7977502Abstract: The invention provides an integrated, continuous process for the production of 3-pentenenitrile, the refining of 3-pentenenitrile, and the refining of 2-methyl-3-butenenitrile, the process comprising: (a) contacting, in a reaction zone, a hydrogen cyanide-containing feed, a butadiene-containing feed, and a catalyst composition, wherein the catalyst composition comprises a zero-valent nickel and at least one bidentate phosphorus-containing ligand selected from the group consisting of a phosphite, a phosphonite, a phosphinite, a phosphine, a mixed phosphorus-containing ligand, and combination thereof; (b) maintaining a residence time in the reaction zone sufficient to convert about 95% or more of the hydrogen cyanide and to produce a reaction mixture comprising 3-pentenenitrile and 2-methyl-3-butenenitrile, wherein the 2-methyl-3-butenenitrile concentration is maintained below about 15 weight percent of the total mass of the reaction mixture; (c) distilling the reaction mixture to obtain a first stream comprType: GrantFiled: January 14, 2009Date of Patent: July 12, 2011Assignee: Invista North America S.A R.L.Inventors: Thomas Foo, Sigridur S. Kristjansdottir, Ronald J. McKinney, Ron Ozer, Paul S. Pearlman
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Patent number: 7919646Abstract: The invention provides a process for hydrocyanation, comprising: contacting 2-pentenenitrile with hydrogen cyanide at a temperature in the range of about 0° C. to about 150° C. in the presence of at least one Lewis acid promoter and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one bidentate phosphite ligand selected from a member of the group represented by Formula I and Formula II, in which all like reference characters have the same meaning, except as further explicitly limited: wherein R1 and R5 are independently selected from the group consisting of C1 to C5 hydrocarbyl; and R2, R3, R4, R6, R7 and R8 are independently selected from the group consisting of H and C1 to C4 hydrocarbyl.Type: GrantFiled: July 12, 2007Date of Patent: April 5, 2011Assignee: Invista North America S.A R.L.Inventors: James Michael Garner, Christian P. Lenges, Ronald J. McKinney, Wilson Tam
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Patent number: 7880028Abstract: The invention provides a continuous process for the production of 3-pentenenitrile, comprising: (a) contacting, in a reaction zone, a hydrogen cyanide-containing feed, a 1,3-butadiene-containing feed, and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one multidentate phosphorus-containing ligand selected from the group consisting of a phosphite, a phosphonite, a phosphinite, a phosphine, and a mixed phosphorus-containing ligand or a combination of such members; and (b) maintaining a residence time sufficient to convert about 95% or more of the hydrogen cyanide and to produce a reaction mixture comprising 3-pentenenitrile and 2-methyl-3-butenenitrile, wherein the 2-methyl-3-butenenitrile concentration is maintained below about 15 weight percent of the total mass of the reaction mixture.Type: GrantFiled: July 12, 2007Date of Patent: February 1, 2011Assignee: Invista North America S.A R.L.Inventors: Thomas Foo, Sigridur S. Kristjansdottir, Ronald J. McKinney, Ron Ozer, Paul S. Pearlman
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Patent number: 7709673Abstract: The invention provides a continuous process for the production of 3-pentenenitrile comprising: (a) contacting, in a reaction zone, a hydrogen cyanide-containing feed, a butadiene-containing feed, and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one bidentate phosphite ligand selected from a member of the group represented by Structures I and II, in which all like reference characters have the same meaning, except as further explicitly limited: wherein R1 and R5 are independently selected from the group consisting of C1 to C5 hydrocarbyl, and R2, R3, R4, R6, R7 and R8 are independently selected from the group consisting of H and C1 to C4 hydrocarbyl; and (b) maintaining a residence time in the reaction zone sufficient to convert about 95% or more of the hydrogen cyanide and to produce a reaction mixture comprising 3-pentenenitrile and 2-methyl-3-butenenitrile, wherein the 2-methyl-3-butenenitrile concentration is maintainType: GrantFiled: July 12, 2007Date of Patent: May 4, 2010Assignee: Invista North America S.A R.L.Inventors: Thomas Foo, Sigridur S. Kristjansdottir, Ronald J. McKinney, Ron Ozer
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Publication number: 20090182163Abstract: The invention provides an integrated, continuous process for the production of 3-pentenenitrile, the refining of 3-pentenenitrile, and the refining of 2-methyl-3-butenenitrile, the process comprising: (a) contacting, in a reaction zone, a hydrogen cyanide-containing feed, a butadiene-containing feed, and a catalyst composition, wherein the catalyst composition comprises a zero-valent nickel and at least one bidentate phosphorus-containing ligand selected from the group consisting of a phosphite, a phosphonite, a phosphinite, a phosphine, a mixed phosphorus-containing ligand, and combination thereof; (b) maintaining a residence time in the reaction zone sufficient to convert about 95% or more of the hydrogen cyanide and to produce a reaction mixture comprising 3-pentenenitrile and 2-methyl-3-butenenitrile, wherein the 2-methyl-3-butenenitrile concentration is maintained below about 15 weight percent of the total mass of the reaction mixture; (c) distilling the reaction mixture to obtain a first stream comprType: ApplicationFiled: January 14, 2009Publication date: July 16, 2009Applicant: INVISTA NORTH AMERICA S.A R.L.Inventors: THOMAS FOO, Sigridur S. Kristjansdottir, Ronald J. McKinney, Ron Ozer, Paul S. Pearlman
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Publication number: 20080015380Abstract: The invention provides a continuous process for the production of 3-pentenenitrile, comprising: (a) contacting, in a reaction zone, a hydrogen cyanide-containing feed, a 1,3-butadiene-containing feed, and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one multidentate phosphorus-containing ligand selected from the group consisting of a phosphite, a phosphonite, a phosphinite, a phosphine, and a mixed phosphorus-containing ligand or a combination of such members; and (b) maintaining a residence time sufficient to convert about 95% or more of the hydrogen cyanide and to produce a reaction mixture comprising 3-pentenenitrile and 2-methyl-3-butenenitrile, wherein the 2-methyl-3-butenenitrile concentration is maintained below about 15 weight percent of the total mass of the reaction mixture.Type: ApplicationFiled: July 12, 2007Publication date: January 17, 2008Applicant: INVISTA NORTH AMERICA S.A R.L.Inventors: THOMAS FOO, Sigridur S. Kristjansdottir, Ronald J. McKinney, Ron Ozer, Paul S. Pearlman
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Publication number: 20080015379Abstract: The invention provides a process for hydrocyanation, comprising: contacting 2-pentenenitrile with hydrogen cyamide at a temperature in the range of about 0° C. to about 150° C. in the presence of at least one Lewis acid promoter and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one bidentate phosphite ligand selected from a member of the group represented by Formula I and Formula II, in which all like reference characters have the same meaning, except as further explicitly limited: wherein R1 and R5 are independently selected from the group consisting of C1 to C5 hydrocarbyl; and R2, R3, R4, R6, R7 and R8 are independently selected from the group consisting of H and C1 to C4 hydrocarbyl.Type: ApplicationFiled: July 12, 2007Publication date: January 17, 2008Applicant: INVISTA NORTH AMERICA S.A R.L.Inventors: JAMES MICHAEL GARNER, Christian P. Lenges, Ronald J. McKinney, Wilson Tam
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Publication number: 20080015378Abstract: The invention provides a continuous process for the production of 3-pentenenitrile comprising: (a) contacting, in a reaction zone, a hydrogen cyanide-containing feed, a butadiene-containing feed, and a catalyst precursor composition, wherein the catalyst precursor composition comprises a zero-valent nickel and at least one bidentate phosphite ligand selected from a member of the group represented by Structures I and II, in which all like reference characters have the same meaning, except as further explicitly limited: wherein R1 and R5 are independently selected from the group consisting of C1 to C5 hydrocarbyl, and R2, R3, R4, R6, R7 and R8 are independently selected from the group consisting of H and C1 to C4 hydrocarbyl; and (b) maintaining a residence time in the reaction zone sufficient to convert about 95% or more of the hydrogen cyanide and to produce a reaction mixture comprising 3-pentenenitrile and 2-methyl-3-butenenitrile, wherein the 2-methyl-3-butenenitrile concentration is maintainType: ApplicationFiled: July 12, 2007Publication date: January 17, 2008Applicant: INVISTA NORTH AMERICA S.A. R.L.Inventors: Thomas Foo, Sigridur S. Kristjansdottir, Ronald J. McKinney, Ron Ozer
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Patent number: 6936171Abstract: Disclosed herein is a process for recovering diphosphite-containing compounds from a mixture comprising diphosphite-containing compounds and organic dinitriles and Lewis acid, using liquid-liquid extraction, wherein the molar ratio of organic mononitrile present to organic dinitrile from about 0.01 to about 2.5 and wherein the mixtured is treated with a Lewis base compound selected from the group consisting of monodentate phosphite ligand, alcohol, water, organoamines, ammonia and basic resin, and wherein the extraction solvent is a saturated or unsaturated alkane or saturated or unsaturated cycloalkane; wherein the Lewis base compound is selected from the group consisting of water, methanol, ethanol, isopropanol, ethylene glycol, phenol, cresol, or xylenol. Also disclosed are pre-treatments to enhance extractability of the diphosphite-containing compounds.Type: GrantFiled: January 8, 2003Date of Patent: August 30, 2005Assignee: Invista North America S.a.r.l.Inventors: Scott C. Jackson, Ronald J. Mckinney
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Patent number: 6897329Abstract: A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel the nickel chloride being introduced as an aqueous solution and the water being removed concurrently with the reduction reaction by azeotropic distillation.Type: GrantFiled: January 14, 2003Date of Patent: May 24, 2005Assignee: Invista North America S.A.R.L.Inventors: Scott C. Jackson, Ronald J. McKinney
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Patent number: 6893996Abstract: A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with a molar excess of nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel. Preferably, the nickel chloride is dried before use.Type: GrantFiled: November 26, 2001Date of Patent: May 17, 2005Assignee: Invista North America S.A.R.L.Inventors: Luis A. Chu, Lucy M. Clarkson, Norman Herron, Ronald J. McKinney, Kenneth G. Moloy, Zeru Tekie
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Patent number: 6844289Abstract: Process for preparing a nickel/ligand catalyst in which a crude ligand mixture is contacted with at least one member selected from the group consisting of (i) a weakly acidic organic resin, (ii) a weakly basic organic resin, (iii) a high-surface-area organic resin, (iv) activated carbon, (v) aluminosilicate zeolite, (vi) a two phase solvent system for liquid-liquid extraction and (vii) a Lewis acid; recovering a solution containing a ligand of the formula (R1O)2POZOP(OR1)2; and contacting the solution with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel to produce the nickel/ligand catalyst.Type: GrantFiled: April 8, 2003Date of Patent: January 18, 2005Assignee: Invista North America S.A.R.L.Inventors: Scott Christopher Jackson, Ronald J. McKinney
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Publication number: 20040204312Abstract: Process for preparing a nickel/ligand catalyst in which a crude ligand mixture is contacted with at least one member selected from the group consisting of (i) a weakly acidic organic resin, (ii) a weakly basic organic resin, (iii) a high-surface-area organic resin, (iv) activated carbon, (v) aluminosilicate zeolite, (vi) a two phase solvent system for liquid-liquid extraction and (vii) a Lewis acid; recovering a solution containing a ligand of the formulaType: ApplicationFiled: April 8, 2003Publication date: October 14, 2004Inventors: Scott Christopher Jackson, Ronald J. McKinney
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Publication number: 20040140263Abstract: Disclosed herein are methods for recovering diphosphite-containing compounds from mixtures comprising organic mononitriles and organic dinitriles, using liquid-liquid extraction. Also disclosed are pre-treatments to enhance extractability of the diphosphite-containing compounds.Type: ApplicationFiled: January 8, 2003Publication date: July 22, 2004Inventors: Scott C. Jackson, Ronald J. Mckinney
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Publication number: 20040138494Abstract: A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel the nickel chloride being introduced as an aqueous solution and the water being removed concurrently with the reduction reaction by azeotropic distillation.Type: ApplicationFiled: January 14, 2003Publication date: July 15, 2004Inventors: Scott C. Jackson, Ronald J. McKinney
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Publication number: 20030100442Abstract: A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with a molar excess of nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel. Preferably, the nickel chloride is dried before use.Type: ApplicationFiled: November 26, 2001Publication date: May 29, 2003Inventors: Luis A. Chu, Lucy M. Clarkson, Norman Herron, Ronald J. Mckinney, Kenneth G. Moloy, Zeru Tekie
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Patent number: 5468900Abstract: Waste nylon 6 and/or nylon 6,6 are converted to adipic acid monomer by depolymerization with an aliphatic monocarboxylic acid to form alkylamides followed by oxidation of the alkylamides to adipic acid.Type: GrantFiled: September 29, 1994Date of Patent: November 21, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Edward F. Moran, Jr., Ronald J. McKinney
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Patent number: 5395974Abstract: The present invention relates to a method of reacting polyamides or mixtures thereof with ammonia to obtain a mixture of monomers. The reaction is carried out in the presence of certain Lewis Acid catalyst precursors.Type: GrantFiled: January 21, 1994Date of Patent: March 7, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventor: Ronald J. McKinney