Patents by Inventor John Derek Woollins

John Derek Woollins 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).

  • PROCESSES USEFUL IN THE MANUFACTURE OF CYCLODODECASULFUR
    Publication number: 20220169506
    Abstract: Methods for producing cyclododecasulfur are disclosed, that include the steps of: oxidizing a bromide in aqueous solution to produce a mixture of molecular bromine, tribromide, and bromide; reducing water to produce hydrogen and a hydroxide; and reacting a metallasulfur derivative with the molecular bromine, to produce cyclododecasulfur and a metallabromide derivative.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 2, 2022
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: SCOTT DONALD BARNICKI, ROBERT THOMAS HEMBRE, SUMIT CHAKRABORTY, MICHAEL RICHARD LANINGHAM, VICKIE HAGOOD OSBORNE, LESLIE SHARON DEPEW, ANNETTE ELIZABETH STEVENS, JOHN DEREK WOOLLINS, GUOXIONG HUA
  • PROCESSES USEFUL IN THE MANUFACTURE OF CYCLODODECASULFUR
    Publication number: 20220169505
    Abstract: Methods for producing cyclododecasulfur are disclosed that include the steps of: reacting a metallasulfur derivative with a molecular halogen to produce cyclododecasulfur and a metallahalide derivative; and reacting the metallahalide derivative with a sulfide or polysulfide to produce the metallasulfur derivative and a halide.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 2, 2022
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: SCOTT DONALD BARNICKI, ROBERT THOMAS HEMBRE, SUMIT CHAKRABORTY, MICHAEL RICHARD LANINGHAM, VICKIE HAGOOD OSBORNE, LESLIE SHARON DEPEW, ANNETTE ELIZABETH STEVENS, JOHN DEREK WOOLLINS, GUOXIONG HUA
  • PROCESSES USEFUL IN THE MANUFACTURE OF CYCLODODECASULFUR
    Publication number: 20220162068
    Abstract: Methods for producing cyclododecasulfur are disclosed that include the steps of: reacting a bromide with molecular chlorine to obtain molecular bromine and a chloride; oxidizing the chloride in aqueous solution with removal of electrons to obtain molecular chlorine; reducing water with electrons to obtain hydrogen and a hydroxide; and reacting a metallasulfur derivative with the molecular bromine, to produce cyclododecasulfur and a metallabromide derivative.
    Type: Application
    Filed: March 5, 2020
    Publication date: May 26, 2022
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: SCOTT DONALD BARNICKI, ROBERT THOMAS HEMBRE, SUMIT CHAKRABORTY, MICHAEL RICHARD LANINGHAM, VICKIE HAGOOD OSBORNE, LESLIE SHARON DEPEW, ANNETTE ELIZABETH STEVENS, JOHN DEREK WOOLLINS, GUOXIONG HUA
  • PROCESSES USEFUL IN THE MANUFACTURE OF CYCLODODECASULFUR
    Publication number: 20220162761
    Abstract: Method for producing molecular halogen are disclosed, that include the steps of: oxidizing a halide to produce a mixture comprising one or more of a molecular halogen, a trihalide, and a halide; reducing a polysulfide comprising a higher rank polysulfide dianion to produce a lower rank polysulfide dianion; and recovering molecular halogen from the mixture comprising one or more of a molecular halogen, a trihalide, and a halide.
    Type: Application
    Filed: March 5, 2020
    Publication date: May 26, 2022
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: SCOTT DONALD BARNICKI, ROBERT THOMAS HEMBRE, SUMIT CHAKRABORTY, MICHAEL RICHARD LANINGHAM, VICKIE HAGOOD OSBORNE, LESLIE SHARON DEPEW, ANNETTE ELIZABETH STEVENS, JOHN DEREK WOOLLINS, GUOXIONG HUA
  • Method for the manufacture of cyclododecasulfur
    Patent number: 11059722
    Abstract: The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: July 13, 2021
    Assignee: Eastman Chemical Company
    Inventors: Scott Donald Barnicki, Robert Thomas Hembre, Elaine Beatrice Mackenzie, Joy Lynn Laningham, Michael Richard Laningham, Shane Kipley Kirk, Larry Wayne Blair, Sumit Chakraborty, Venkateswarlu Bhamidi, Guoxiong Hua, John Derek Woollins
  • METHOD FOR THE MANUFACTURE OF CYCLODODECASULFUR
    Publication number: 20200216316
    Abstract: The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
    Type: Application
    Filed: March 3, 2020
    Publication date: July 9, 2020
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Scott Donald BARNICKI, Robert Thomas HEMBRE, Elaine Beatrice MACKENZIE, Joy Lynn LANINGHAM, Michael Richard LANINGHAM, Shane Kipley KIRK, Larry Wayne BLAIR, Sumit CHAKRABORTY, Venkateswarlu BHAMIDI, Guoxiong HUA, John Derek WOOLLINS
  • METHOD FOR THE MANUFACTURE OF CYCLODODECASULFUR
    Publication number: 20200207621
    Abstract: The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
    Type: Application
    Filed: March 11, 2020
    Publication date: July 2, 2020
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: SCOTT DONALD BARNICKI, ROBERT THOMAS HEMBRE, ELAINE BEATRICE MACKENZIE, JOY LYNN LANINGHAM, MICHAEL RICHARD LANINGHAM, SHANE KIPLEY KIRK, LARRY WAYNE BLAIR, SUMIT CHAKRABORTY, VENKATESWARLU BHAMIDI, GUOXIONG HUA, JOHN DEREK WOOLLINS
  • Method for the manufacture of cyclododecasulfur
    Patent number: 10611637
    Abstract: The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: April 7, 2020
    Assignee: Eastman Chemical Company
    Inventors: Scott Donald Barnicki, Robert Thomas Hembre, Elaine Beatrice Mackenzie, Joy Lynn Laningham, Michael Richard Laningham, Shane Kipley Kirk, Larry Wayne Blair, Sumit Chakraborty, Venkateswarlu Bhamidi, Guoxiong Hua, John Derek Woollins
  • METHOD FOR THE MANUFACTURE OF CYCLODODECASULFUR
    Publication number: 20180273382
    Abstract: The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
    Type: Application
    Filed: June 1, 2018
    Publication date: September 27, 2018
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: SCOTT DONALD BARNICKI, ROBERT THOMAS HEMBRE, ELAINE BEATRIC MACKENZIE, JOY LYNN LANINGHAM, MICHAEL RICHARD LANINGHAM, SHANE KIPLEY KIRK, LARRY WAYNE BLAIR, SUMIT CHAKRABORTY, VENKATESWARLU BHAMIDI, GUOXIONG HUA, JOHN DEREK WOOLLINS
  • Method for the manufacture of cyclododecasulfur
    Patent number: 10011485
    Abstract: The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: July 3, 2018
    Assignee: EASTMAN CHEMICAL COMPANY
    Inventors: Scott Donald Barnicki, Robert Thomas Hembre, Elaine Beatrice MacKenzie, Joy Lynn Laningham, Michael Richard Laningham, Shane Kipley Kirk, Larry Wayne Blair, Sumit Chakraborty, Venkateswarlu Bhamidi, Guoxiong Hua, John Derek Woollins
  • METHOD FOR THE MANUFACTURE OF CYCLODODECASULFUR
    Publication number: 20170253484
    Abstract: The present invention relates to a method for the manufacture of cyclododecasulfur, a cyclic sulfur allotrope wherein the number of sulfur (S) atoms in the allotrope's homocyclic ring is 12. The method includes reacting a metallasulfur derivative with an oxidizing agent in a reaction zone to form a cyclododecasulfur-containing reaction mixture.
    Type: Application
    Filed: February 23, 2017
    Publication date: September 7, 2017
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: SCOTT DONALD BARNICKI, ROBERT THOMAS HEMBRE, ELAINE BEATRICE MACKENZIE, JOY LYNN LANINGHAM, MICHAEL RICHARD LANINGHAM, SHANE KIPLEY KIRK, LARRY WAYNE BLAIR, SUMIT CHAKRABORTY, VENKATESWARLU BHAMIDI, GUOXIONG HUA, JOHN DEREK WOOLLINS
  • Process for the preparation of dithiophosphoric acids
    Patent number: 5703262
    Abstract: Dithiophosphoric acids are advantageously produced by reaction of an alcohol or phenol with phosphorus sesquisulphide in the presence of sulphur, preferably at the reflux temperature of the alcohol used.
    Type: Grant
    Filed: April 6, 1993
    Date of Patent: December 30, 1997
    Assignee: Exxon Chemical Patents Inc
    Inventors: Terence Colclough, Philip Skinner, John Derek Woollins, Paul Thomas Wood