Patents by Inventor John R. Briggs

John R. Briggs 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).

  • Publication number: 20230331643
    Abstract: Catalyst compositions are prepared by contacting a palladium source and 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane and a methoxyocta-diene compound, in a primary aliphatic alcohol, under suitable conditions including a ratio of equivalents of palladium to equivalents of 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane ranging from greater than 1:1 to 1:1.3. The result is a complex of palladium, a 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaada-mantane ligand, and a ligand selected from a methoxyoctadiene ligand, an octadienyl ligand, or a protonated octadienyl. Such complexes may, in solution, exhibit surprising solubility and storage stability and are useful in the telomerization of butadiene, which is a step in the production of 1-octene.
    Type: Application
    Filed: June 12, 2023
    Publication date: October 19, 2023
    Applicant: Dow Global Technologies LLC
    Inventors: Jessica L. Klinkenberg, John R. Briggs
  • Patent number: 11713286
    Abstract: Catalyst compositions are prepared by contacting a palladium source and 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane and a methoxyocta-diene compound, in a primary aliphatic alcohol, under suitable conditions including a ratio of equivalents of palladium to equivalents of 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane ranging from greater than 1:1 to 1:1.3. The result is a complex of palladium, a 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaada-mantane ligand, and a ligand selected from a methoxyoctadiene ligand, an octadienyl ligand, or a protonated octadienyl. Such complexes may, in solution, exhibit surprising solubility and storage stability and are useful in the telomerization of butadiene, which is a step in the production of 1-octene.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: August 1, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Jessica L. Klinkenberg, John R. Briggs
  • Publication number: 20220213006
    Abstract: Catalyst compositions are prepared by contacting a palladium source and 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane and a methoxyocta-diene compound, in a primary aliphatic alcohol, under suitable conditions including a ratio of equivalents of palladium to equivalents of 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane ranging from greater than 1:1 to 1:1.3. The result is a complex of palladium, a 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaada-mantane ligand, and a ligand selected from a methoxyoctadiene ligand, an octadienyl ligand, or a protonated octadienyl. Such complexes may, in solution, exhibit surprising solubility and storage stability and are useful in the telomerization of butadiene, which is a step in the production of 1-octene.
    Type: Application
    Filed: March 24, 2022
    Publication date: July 7, 2022
    Applicant: Dow Global Technologies LLC
    Inventors: Jessica L. Klinkenberg, John R. Briggs
  • Patent number: 11312670
    Abstract: Catalyst compositions are prepared by contacting a palladium source and 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane and a methoxyocta-diene compound, in a primary aliphatic alcohol, under suitable conditions including a ratio of equivalents of palladium to equivalents of 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane ranging from greater than 1:1 to 1:1.3. The result is a complex of palladium, a 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaada-mantane ligand, and a ligand selected from a methoxyoctadiene ligand, an octadienyl ligand, or a protonated octadienyl. Such complexes may, in solution, exhibit surprising solubility and storage stability and are useful in the telomerization of butadiene, which is a step in the production of 1-octene.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: April 26, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Jessica L. Klinkenberg, John R. Briggs
  • Patent number: 11111260
    Abstract: A method for forming 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane includes obtaining a solution comprising an ethereal solvent and an aluminum hydride, adding dichloro(2,4-dimethoxyphenyl)phosphine to the solution to produce 2,4-dimethoxyphenylphosphine, and reacting the 2,4-dimethoxyphenylphosphine with an acidic mixture comprising diones to produce 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane. The solution has a temperature from IN greater than ?20 C. to 50 C. throughout the method. Another method for forming 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-tri-oxa-6-phosphaadamantane includes obtaining dichloro(2,4-dimethoxyphenyl)phosphine, forming 2,4-dimethoxyphenylphosphine by adding the dichloro(2,4-dimethoxyphenyl)phosphine to a solution comprising at least one solvent and an aluminum hydride, reacting the 2,4-dimethoxyphenylphosphine with a mixture to produce 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 7, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Jessica L. Klinkenberg, John R. Briggs, Andrew M. Camelio, Robert David Grigg, Siyu Tu
  • Patent number: 10751706
    Abstract: Use a solvent blend that contains 1-methoxy-2,7-octadiene and an alkanols rather than the alkanols by itself to prepare a catalyst precursor suitable for use in butadiene telomerization.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: August 25, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Helene N. Launay, Jessica L. Klinkenberg, John R. Briggs, Sarah E. House, Marcel C. Van Engelen, Larry G. Wright, Georg Bar, Wilma Hensen, Julia Fuertes Cabello, Istvan Lengyel
  • Publication number: 20200147596
    Abstract: Use a solvent blend that contains 1methoxy-2,7-octadiene and an alkanols rather than the alkanols by itself to prepare a catalyst precursor suitable for use in butadiene telomerization.
    Type: Application
    Filed: January 14, 2020
    Publication date: May 14, 2020
    Inventors: Helene N. Launay, Jessica L. Klinkenberg, John R. Briggs, Sarah E. House, Marcel C. Van Engelen, Larry G. Wright, Georg Bar, Wilma Hensen, Julia Fuertes Cabello, Istvan Lengyel
  • Patent number: 10569262
    Abstract: Use a solvent blend that contains 1-methoxy-2,7-octadiene and an alkanols rather than the alkanols by itself to prepare a catalyst precursor suitable for use in butadiene telomerization.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: February 25, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Helene N. Launay, Jessica L. Klinkenberg, John R. Briggs, Sarah E. House, Marcel C. Van Engelen, Larry G. Wright, Georg Bar, Wilma Hansen, Julia Cabello Fuertes, Istvan Lengyel
  • Publication number: 20200010494
    Abstract: A method for forming 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane includes obtaining a solution comprising an ethereal solvent and an aluminum hydride, adding dichloro(2,4-dimethoxyphenyl)phosphine to the solution to produce 2,4-dimethoxyphenylphosphine, and reacting the 2,4-dimethoxyphenylphosphine with an acidic mixture comprising diones to produce 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane. The solution has a temperature from IN greater than ?20 C. to 50 C. throughout the method. Another method for forming 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-tri-oxa-6-phosphaadamantane includes obtaining dichloro(2,4-dimethoxyphenyl)phosphine, forming 2,4-dimethoxyphenylphosphine by adding the dichloro(2,4-dimethoxyphenyl)phosphine to a solution comprising at least one solvent and an aluminum hydride, reacting the 2,4-dimethoxyphenylphosphine with a mixture to produce 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane.
    Type: Application
    Filed: March 22, 2018
    Publication date: January 9, 2020
    Applicant: Dow Global Technologies LLC
    Inventors: Jessica L. Klinkenberg, John R. Briggs, Andrew M. Camelio, Robert David Grigg, Siyu Tu
  • Publication number: 20180072637
    Abstract: Catalyst compositions are prepared by contacting a palladium source and 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane and a methoxyocta-diene compound, in a primary aliphatic alcohol, under suitable conditions including a ratio of equivalents of palladium to equivalents of 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane ranging from greater than 1:1 to 1:1.3. The result is a complex of palladium, a 1,3,5,7-tetramethyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaada-mantane ligand, and a ligand selected from a methoxyoctadiene ligand, an octadienyl ligand, or a protonated octadienyl. Such complexes may, in solution, exhibit surprising solubility and storage stability and are useful in the telomerization of butadiene, which is a step in the production of 1-octene.
    Type: Application
    Filed: April 1, 2016
    Publication date: March 15, 2018
    Applicant: Dow Global Technologies LLC
    Inventors: Jessica L. Klinkenberg, John R. Briggs
  • Patent number: 9579641
    Abstract: An aryl phosphine with fused ring ortho-alkoxy substitution that includes an aryl monophosphine and an aryl bi-sphosphme.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: February 28, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Thomas P. Clark, Heather A. Spinney, Sarah E. House, John R. Briggs, Clark H. Cummins, Jessica L. Klinkenberg
  • Patent number: 9505672
    Abstract: Olefins are produced by the reductive dehydroxylation of vicinal polyols or esters thereof, or a combination thereof, in a liquid reaction medium, under a hydrogen atmosphere, at a temperature from 50° C. to 250° C., in the presence of a halogen-based, preferably iodine-based, catalyst. Examples of the catalyst, which may be included independently or generated in situ, are iodine (I2), hydroiodic acid (HI), iodic acid (HIO3), lithium iodide (LiI), and combinations thereof.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: November 29, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Raj Deshpande, Paul Davis, Vandana Pandey, Nitin Kore, John R. Briggs
  • Publication number: 20160271601
    Abstract: Use a solvent blend that contains 1-methoxy-2,7-octadiene and an alkanols rather than the alkanols by itself to prepare a catalyst precursor suitable for use in butadiene telomerization.
    Type: Application
    Filed: December 4, 2014
    Publication date: September 22, 2016
    Inventors: Helene N. Launay, Jessica L. Klinkenberg, John R. Briggs, Sarah E. House, Marcel C. Van Engelen, Larry G. Wright, Georg Bar, Wilma Hansen, Julia Cabello Fuertes, Istvan Lengyel
  • Publication number: 20160184811
    Abstract: An aryl phosphine with fused ring ortho-alkoxy substitution that includes an aryl monophosphine and an aryl bi-sphosphme.
    Type: Application
    Filed: June 18, 2014
    Publication date: June 30, 2016
    Applicant: Dow Global Technologies LLC
    Inventors: Thomas P. Clark, Heather A. Spinney, Sarah E. House, John R. Briggs, Clark H. Cummins, Jessica L. Klinkenberg
  • Patent number: 9174905
    Abstract: A process for the telomerization of butadiene comprises reacting 1,3-butadiene and an alkanol, in the presence of a catalyst promoter and an alkoxydimerization catalyst comprising a Group VIII transition metal and a triarylphosphine ligand, which includes one phenyl that is mono-ortho-alkoxy substituted and at least one other phenyl including at least one substituent that withdraws electrons from the phosphorus atom. The product includes an alkoxy-substituted octadiene, which may then be used to produce 1-octene. The catalyst shows improved stability, activity and selectivity toward the alkoxy-substituted octadiene.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: November 3, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: John R. Briggs, Jasson T. Patton, Daryoosh Beigzadeh, Peter M. Margl, Henk Hagen, Sonet Vermaire-Louw
  • Patent number: 9067845
    Abstract: A process for producing a chlorohydrin, an ester of a chlorohydrin, or a mixture thereof including the steps of contacting, in a hydrochlorination reactor, a multihydroxylated aliphatic hydrocarbon, an ester of a multihydroxylated aliphatic hydrocarbon, or a mixture thereof with a source of a hydrogen chloride, in the presence of a hydrophobic or extractable carboxylic acid catalyst is provided.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: June 30, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Tina L. Arrowood, William J. Kruper, Jr., John R. Briggs
  • Publication number: 20150025280
    Abstract: A catalytic system for reductive carbonylation of an alcohol that includes a rhodium complex, an iodide-containing catalyst promoter, and a supporting phosphorus-containing bidentate ligand for the rhodium complex containing at least one aromatic substituent covalently attached to at least one phosphorus of the supporting phosphorus-containing bidentate ligand in an ortho position with an alkoxy substituent or an aryloxy substituent.
    Type: Application
    Filed: December 20, 2012
    Publication date: January 22, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Thomas P. Clark, Heather A. Spinney, Jason MacDonald, Clark H. Cummins, Jerzy Klosin, John R. Briggs
  • Publication number: 20140357920
    Abstract: Olefins are produced by the reductive dehydroxylation of vicinal polyols or esters thereof, or a combination thereof, in a liquid reaction medium, under a hydrogen atmosphere, at a temperature from 50° C. to 250° C., in the presence of a halogen-based, preferably iodine-based, catalyst. Examples of the catalyst, which may be included independently or generated in situ, are iodine (I2), hydroiodic acid (HI), iodic acid (HIO3), lithium iodide (LiI), and combinations thereof.
    Type: Application
    Filed: December 5, 2012
    Publication date: December 4, 2014
    Inventors: Raj Deshpande, Paul Davis, Vandana Pandey, Nitin Kore, John R. Briggs
  • Publication number: 20140343340
    Abstract: Polyether polyols, derivatives and combinations thereof are converted to olefins under reductive or non-reductive dehydroxylation conditions, in the presence of a halogen-based catalyst. Derivatives include polyether polyols incorporated in polyurethanes. The process includes gas pressure from 1 psig (˜6.89 KPa) to 2000 psig (˜13.79 MPa), a temperature from 50° C. to 250° C., a liquid reaction medium, and a molar ratio of the starting material to halogen atoms from 1:10 to 100:1.
    Type: Application
    Filed: December 5, 2012
    Publication date: November 20, 2014
    Inventors: Raj Deshpande, Paul Davis, Vandana Pandey, Nitin Kore, John R. Briggs
  • Patent number: 8829229
    Abstract: New polyol ether compounds and a process for their preparation. The process comprises reacting a polyol, a carbonyl compound, and hydrogen in the presence of hydrogenation catalyst, to provide the polyol ether. The molar ratio of polyol to carbonyl compound in the process is greater than 5:1.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: September 9, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Michael L. Tulchinsky, John R. Briggs, Cynthia L. Rand