Patents by Inventor Dimitris Ioannis Collias

Dimitris Ioannis Collias 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).

  • Methods of making acrylic acid from lactic acid or its derivatives in liquid phase
    Patent number: 10723687
    Abstract: Methods for making acrylic acid, acrylic acid derivatives, or mixtures thereof by contacting a feed stream containing lactic acid, lactic acid derivatives, or mixtures thereof with a molten salt catalyst comprising an ionic liquid (IL) and an acid in liquid phase are provided.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: July 28, 2020
    Assignee: The Procter & Gamble Company
    Inventors: Jakob Albert, Peter Wasserscheid, Nicola Taccardi, Jens Nagengast, Matthias Kehrer, Julian Kadar, Dimitris Ioannis Collias
  • Catalysts for the dehydration of hydroxypropionic acid and its derivatives
    Patent number: 10717070
    Abstract: Hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof are dehydrated using a catalyst and a method to produce bio-acrylic acid, acrylic acid derivatives, or mixtures thereof. A method to produce the dehydration catalyst is also provided.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: July 21, 2020
    Assignee: The Procter & Gamble Company
    Inventors: Juan Esteban Velasquez, Dimitris Ioannis Collias, Jane Ellen Godlewski, Fred Christian Wireko
  • Methods of making acrylic acid from lactic acid or its derivatives in liquid phase
    Patent number: 10717696
    Abstract: Methods for making acrylic acid, acrylic acid derivatives, or mixtures thereof by contacting a feed stream containing lactic acid, lactic acid derivatives, or mixtures thereof with a molten salt catalyst comprising an ionic liquid (IL) and an acid in liquid phase are provided.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: July 21, 2020
    Assignee: The Procter & Gamble Company
    Inventors: Jakob Albert, Peter Wasserscheid, Nicola Taccardi, Jens Nagengast, Matthias Kehrer, Julian Kadar, Dimitris Ioannis Collias
  • ADSORBENT MATRIX AS PROPELLANT IN AEROSOL PACKAGE
    Publication number: 20200148460
    Abstract: Adsorbent materials adsorb large quantities of inert permanent gases and maintain the initial pressure inside aerosol packages throughout the useful life of the packages, thus acting as propellants.
    Type: Application
    Filed: October 15, 2019
    Publication date: May 14, 2020
    Inventor: Dimitris Ioannis Collias
  • Method For Separating And Purifying Polymers From Reclaimed Product
    Publication number: 20200062922
    Abstract: A method for separating and purifying polymers of a reclaimed product (rP) is disclosed. The rP is contacted at an elevated temperature and pressure, with an extraction solvent to produce an extracted rP (erP). A solvent, at conditions sufficient to solubilize the first polymer, contacts the erP to produce a solution, which is purified at an elevated temperature and pressure by contacting it with a solid medium to produce a purified solution of the first polymer. The purified polymer is then separated from the purified solution, and the method steps are repeated until all polymers are separated and purified.
    Type: Application
    Filed: August 30, 2019
    Publication date: February 27, 2020
    Inventors: John Moncrief Layman, Dimitris Ioannis Collias, Hans Schonemann, Kara Williams
  • Method For Purifying Reclaimed Polyethylene
    Publication number: 20190390032
    Abstract: A method for purifying a reclaimed polyethylene is disclosed. In one embodiment, the method involves obtaining reclaimed polyethylene, contacting the reclaimed polyethylene with a first fluid solvent to produce an extracted reclaimed polyethylene; then dissolving the extracted reclaimed polyethylene in a solvent to produce a first solution comprising polyethylene. The first solution is settled and then filtered. A purer polyethylene is separated from the resulting solution.
    Type: Application
    Filed: May 28, 2019
    Publication date: December 26, 2019
    Inventors: John Moncrief Layman, Dimitris Ioannis Collias, Hans Schonemann, Kara Williams
  • Method For Separating and Purifying Polymers From Reclaimed Product
    Publication number: 20190390034
    Abstract: A method for separating and purifying polymers of a reclaimed product (rP) is disclosed. The rP is contacted at an elevated temperature and pressure, with an extraction solvent to produce an extracted rP (erP). A solvent, at conditions sufficient to solubilize the first polymer, contacts the erP to produce a solution, which is purified at an elevated temperature and pressure by filtering it and contacting it with a solid medium to produce a purified solution of the first polymer. The purified polymer is then separated from the purified solution, and the method steps are repeated until all polymers are separated and purified.
    Type: Application
    Filed: May 28, 2019
    Publication date: December 26, 2019
    Inventors: John Moncrief Layman, Dimitris Ioannis Collias, Hans Schonemann, Kara Williams
  • Method For Purifying Reclaimed Polymers
    Publication number: 20190390033
    Abstract: A method for purifying a reclaimed polymer is disclosed. In one embodiment, the method involves obtaining reclaimed polymer, contacting the reclaimed polymer with a first fluid solvent to produce an extracted reclaimed polymer; then dissolving the extracted reclaimed polymer in a solvent to produce a first solution comprising polymer. The first solution is settled and then filtered. A purer polymer is separated from the resulting solution.
    Type: Application
    Filed: May 28, 2019
    Publication date: December 26, 2019
    Inventors: John Moncrief Layman, Dimitris Ioannis Collias, Hans Schonemann, Kara Williams
  • Method For Purifying Reclaimed Polypropylene
    Publication number: 20190390031
    Abstract: A method for purifying a reclaimed polypropylene is disclosed. In one embodiment, the method involves obtaining reclaimed polypropylene, contacting the reclaimed polypropylene with a first fluid solvent to produce an extracted reclaimed polypropylene; then dissolving the extracted reclaimed polypropylene in a solvent to produce a first solution comprising polypropylene. The first solution is settled and then filtered. A purer polypropylene is separated from the resulting solution.
    Type: Application
    Filed: May 28, 2019
    Publication date: December 26, 2019
    Inventors: John Moncrief Layman, Dimitris Ioannis Collias, Hans Schonemann, Kara Williams
  • Method of making acrylic acid from hydroxypropionic acid
    Patent number: 10487035
    Abstract: Methods for making acrylic acid, acrylic acid derivatives, or mixtures thereof by contacting a stream containing hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof with either an active catalyst containing an amorphous and partially-dehydrated phosphate salt or a precursor catalyst containing a crystalline phosphate salt in a reactor with a low corrosion rate are provided.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: November 26, 2019
    Assignee: The Procter & Gamble Company
    Inventors: Dimitris Ioannis Collias, Jane Ellen Godlewski, Juan Esteban Velasquez
  • Method for purifying reclaimed polymers
    Patent number: 10465058
    Abstract: A method for purifying a reclaimed polymer is provided. The method involves obtaining reclaimed polymer, contacting it with a first fluid solvent to produce an extracted reclaimed polymer then dissolving the extracted reclaimed polymer in a solvent to produce a first solution comprising polymer and suspended contaminants. The first solution is settled to produce a second solution comprising polymer and remaining contaminants. The second solution is purified by contacting the second solution with solid media to produce a third solution comprising purer polymer. Finally, the purer polymer is separated from the third solution.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: November 5, 2019
    Assignee: The Procter & Gamble Company
    Inventors: John Moncrief Layman, Dimitris Ioannis Collias, Hans Schonemann, Kara Williams
  • Method for purifying reclaimed polypropylene
    Patent number: 10450436
    Abstract: A method for purifying a reclaimed polypropylene is provided. The method involves obtaining reclaimed polypropylene, contacting it with a first fluid solvent to produce an extracted reclaimed polypropylene then dissolving the extracted reclaimed polypropylene in a solvent to produce a first solution comprising polypropylene and suspended contaminants. The first solution is settled to produce a second solution comprising polypropylene and remaining contaminants. The second solution is purified by contacting the second solution with solid media to produce a third solution comprising purer polypropylene. Finally, the purer polypropylene is separated from the third solution.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 22, 2019
    Assignee: The Procter & Gamble Company
    Inventors: John Moncrief Layman, Dimitris Ioannis Collias, Hans Schonemann, Kara Williams
  • Method for purifying reclaimed polyethylene
    Patent number: 10442912
    Abstract: A method for purifying a reclaimed polyethylene is provided. The method involves obtaining reclaimed polyethylene, contacting it with a first fluid solvent to produce an extracted reclaimed polyethylene then dissolving the extracted reclaimed polyethylene in a solvent to produce a first solution comprising polyethylene and suspended contaminants. The first solution is settled to produce a second solution comprising polyethylene and remaining contaminants. The second solution is purified by contacting the second solution with solid media to produce a third solution comprising purer polyethylene. Finally, the purer polyethylene is separated from the third solution.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 15, 2019
    Assignee: The Procter & Gamble Company
    Inventors: John Moncrief Layman, Dimitris Ioannis Collias, Hans Schonemann, Kara Williams
  • Method for separating and purifying materials from a reclaimed product
    Patent number: 10435532
    Abstract: A method for separating and purifying polymers of a reclaimed product (rP) is disclosed. The rP is contacted at an elevated temperature and pressure, with an extraction solvent to produce an extracted rP (erP). A solvent, at conditions sufficient to solubilize the first polymer, contacts the erP to produce a solution, which is purified at an elevated temperature and pressure by contacting it with a solid medium to produce a purified solution of the first polymer. The purified polymer is then separated from the purified solution, and the method steps are repeated until all polymers are separated and purified.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 8, 2019
    Assignee: The Procter & Gamble Company
    Inventors: John Moncrief Layman, Dimitris Ioannis Collias, Hans Schonemann, Kara Williams
  • Method Of Making Acrylic Acid From Hydroxypropionic Acid
    Publication number: 20190292125
    Abstract: Methods for making acrylic acid, acrylic acid derivatives, or mixtures thereof by contacting a stream containing hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof with either an active catalyst containing an amorphous and partially-dehydrated phosphate salt or a precursor catalyst containing a crystalline phosphate salt in a reactor with a low corrosion rate are provided.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 26, 2019
    Inventors: Dimitris Ioannis Collias, Jane Ellen Godlewski, Juan Esteban Velasquez
  • Catalysts For Making Acrylic Acid From Lactic Acid Or Its Derivatives In Liquid Phase
    Publication number: 20190240650
    Abstract: Catalysts for the dehydration of lactic acid, lactic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof in liquid phase comprising an ionic liquid (IL) and an acid are provided.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Inventors: Jakob Albert, Peter Wasserscheid, Nicola Taccardi, Jens Nagengast, Matthias Kehrer, Julian Kadar, Dimitris Ioannis Collias
  • Poly(acrylic acid) from bio-based acrylic acid and its derivatives
    Patent number: 10344108
    Abstract: Bio-based glacial acrylic acid, produced from hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof and having impurities of hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof, is polymerized to poly(acrylic acid) or superabsorbent polymer using the same processes as petroleum-derived glacial acrylic acid.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: July 9, 2019
    Assignee: The Procter & Gamble Company
    Inventors: Jane Ellen Godlewski, Janette Villalobos Lingoes, Dimitris Ioannis Collias, Axel Meyer, Peter Dziezok, Juan Esteban Velasquez
  • Catalysts For The Dehydration Of Hydroxypropionic Acid And Its Derivatives
    Publication number: 20190201879
    Abstract: Hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof are dehydrated using a catalyst and a method to produce bio-acrylic acid, acrylic acid derivatives, or mixtures thereof. A method to produce the dehydration catalyst is also provided.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Juan Esteban Velasquez, Dimitris Ioannis Collias, Jane Ellen Godlewski, Fred Christian Wireko
  • Catalysts for making acrylic acid from lactic acid or its derivatives in liquid phase
    Patent number: 10307745
    Abstract: Catalysts for the dehydration of lactic acid, lactic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof in liquid phase comprising an ionic liquid (IL) and an acid are provided.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: June 4, 2019
    Assignee: The Procter & Gamble Company
    Inventors: Jakob Albert, Peter Wasserscheid, Nicola Taccardi, Jens Nagengast, Matthias Kehrer, Julian Kadar, Dimitris Ioannis Collias
  • Catalysts for making acrylic acid from lactic acid or its derivatives in liquid phase
    Patent number: 10307744
    Abstract: Catalysts for the dehydration of lactic acid, lactic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof in liquid phase comprising an ionic liquid (IL) and an acid are provided.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: June 4, 2019
    Assignee: The Procter & Gamble Company
    Inventors: Jakob Albert, Peter Wasserscheid, Nicola Taccardi, Jens Nagengast, Matthias Kehrer, Julian Kadar, Dimitris Ioannis Collias