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
    Publication number: 20180148400
    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: Application
    Filed: January 11, 2018
    Publication date: May 31, 2018
    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
    Publication number: 20180133705
    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: January 11, 2018
    Publication date: May 17, 2018
    Inventors: Jakob Albert, Peter Wasserscheid, Nicola Taccardi, Jens Nagengast, Matthias Kehrer, Julian Kadar, Dimitris Ioannis Collias
  • Purification Of Bio Based Acrylic Acid To Crude And Glacial Acrylic Acid
    Publication number: 20180127348
    Abstract: Processes for the purification of bio-based acrylic acid to crude and glacial acrylic acid are provided. The bio-based acrylic acid is produced from hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof. The purification includes some or all of the following processes: extraction, drying, distillation, and melt crystallization. The produced glacial or crude acrylic acid contains hydroxypropionic, hydroxypropionic acid derivatives, or mixtures thereof as an impurity.
    Type: Application
    Filed: January 4, 2018
    Publication date: May 10, 2018
    Inventors: Jane Ellen Godlewski, Janette Villalobos Lingoes, Juan Esteban Velasquez, Dimitris Ioannis Collias
  • Method Of Making Acrylic Acid From Hydroxypropionic Acid
    Publication number: 20180126187
    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: January 4, 2018
    Publication date: May 10, 2018
    Inventors: Dimitris Ioannis Collias, Jane Ellen Godlewski, Juan Esteban Velasquez
  • Catalysts For The Dehydration Of Hydroxypropionic Acid And Its Derivatives
    Publication number: 20180126363
    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: January 4, 2018
    Publication date: May 10, 2018
    Inventors: Juan Esteban Velasquez, Dimitris Ioannis Collias, Jane Ellen Godlewski, Fred Christian Wireko
  • Catalytic conversion of lactic acid to acrylic acid
    Patent number: 9926256
    Abstract: Disclosed herein is a mixed phosphate catalyst for converting lactic acid to acrylic acid, which is characterized by a high conversion of lactic acid, a high selectivity for acrylic acid, a high yield of acrylic acid, and correspondingly low selectivity and molar yields for undesired by-products. This is achieved with a particular class of catalysts defined by a mixture of metal-containing phosphate salts. Further, the catalyst is believed to be stable and active for lengthy periods heretofore unseen in the art for such dehydration processes.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 27, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Janette Villalobos Lingoes, Dimitris Ioannis Collias
  • Catalysts For The Dehydration Of Hydroxypropionic Acid And Its Derivatives
    Publication number: 20180071722
    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: November 20, 2017
    Publication date: March 15, 2018
    Inventors: Juan Esteban Velasquez, Dimitris Ioannis Collias, Jane Ellen Godlewski, Fred Christian Wireko
  • Catalysts for the dehydration of hydroxypropionic acid and its derivatives
    Patent number: 9889435
    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: August 29, 2016
    Date of Patent: February 13, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Juan Esteban Velasquez, Dimitris Ioannis Collias, Jane Ellen Godlewski, Fred Christian Wireko
  • Method of making acrylic acid from hydroxypropionic acid
    Patent number: 9890102
    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: November 3, 2016
    Date of Patent: February 13, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Dimitris Ioannis Collias, Jane Ellen Godlewski, Juan Esteban Velasquez
  • Methods Of Making Acrylic Acid From Lactic Acid Or Its Derivatives In Liquid Phase
    Publication number: 20180029969
    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: Application
    Filed: July 27, 2017
    Publication date: February 1, 2018
    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
    Publication number: 20180029026
    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: July 27, 2017
    Publication date: February 1, 2018
    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
    Publication number: 20180009915
    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: Application
    Filed: September 18, 2017
    Publication date: January 11, 2018
    Inventors: Jane Ellen Godlewski, Janette Villalobos Lingoes, Dimitris Ioannis Collias, Axel Meyer, Peter Dziezok, Juan Esteban Velasquez
  • Bi-component catalyst and method for dehydrating lactic acid to acrylic acid
    Patent number: 9862670
    Abstract: Bicomponent catalysts and methods for making bio-based acrylic acid, acrylic acid derivatives, or mixtures thereof from lactic acid, lactic acid derivatives, or mixtures thereof are provided.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: January 9, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Dimitris Ioannis Collias, Jeffrey Charles Hayes, William David Laidig
  • Catalysts for the dehydration of hydroxypropionic acid and its derivatives
    Patent number: 9849447
    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: August 29, 2016
    Date of Patent: December 26, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Juan Esteban Velasquez, Dimitris Ioannis Collias, Jane Ellen Godlewski
  • Purification Of Bio Based Acrylic Acid To Crude And Glacial Acrylic Acid
    Publication number: 20170362158
    Abstract: Processes for the purification of bio-based acrylic acid to crude and glacial acrylic acid are provided. The bio-based acrylic acid is produced from hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof. The purification includes some or all of the following processes: extraction, drying, distillation, and melt crystallization. The produced glacial or crude acrylic acid contains hydroxypropionic, hydroxypropionic acid derivatives, or mixtures thereof as an impurity.
    Type: Application
    Filed: August 29, 2017
    Publication date: December 21, 2017
    Inventors: Jane Ellen Godlewski, Janette Villalobos Lingoes, Juan Esteban Velasquez, Dimitris Ioannis Collias
  • Method for the dehydration of lactate salt to acrylic acid or acrylic salt
    Patent number: 9828325
    Abstract: Methods for catalytically dehydrating lactate salt to acrylic acid, acrylate salt, or mixtures thereof with high yield and selectivity and without significant conversion to undesired side products, such as, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts include acid-base bifunctional catalysts.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: November 28, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Dimitris Ioannis Collias, Juan Esteban Velasquez, Jane Ellen Godlewski, Jeffrey Charles Hayes, William David Laidig
  • Production of terephthalic acid via reductive coupling of propiolic acid or propiolic acid derivatives
    Patent number: 9809525
    Abstract: A method of making terephthalic acid via reductive coupling of two molecules of propiolic acid or propiolic acid derivatives is presented. The reductive coupling can be catalyzed by compounds comprising metals, and propiolic acid or propiolic acid derivatives can be produced from acetylene and carbon dioxide. At least 4 of the 8 carbons in the terephthalic acid are non-fossil-derived.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: November 7, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Jeffrey Charles Hayes, Hairong Guan, Dimitris Ioannis Collias
  • Process for production of acrylic acid or its derivatives from hydroxypropionic acid or its derivatives
    Patent number: 9809527
    Abstract: Processes for the catalytic dehydration of hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity and without significant conversion to undesired side products, such as, acetaldehyde, propanoic acid, and acetic acid, are provided.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: November 7, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Jane Ellen Godlewski, Janette Villalobos, Dimitris Ioannis Collias, Juan Estaban Velasquez
  • Components for aerosol dispenser and aerosol dispenser made therewith
    Patent number: 9758294
    Abstract: A pressurized container usable for a pressurizable contain, such as an aerosol dispenser, an aerosol dispenser made therewith and preform therefor. The preform/container/dispenser has a neck at the top. The neck has upper and lower portions. The lower portion transitions into a shoulder, which flares outwardly. The shoulder, in turn, transitions into a sidewall. The lower neck portion/shoulder and/or upper part of the sidewall are cystallized. The invention also comprises a preform for making such a pressurizable container and an aerosol dispenser made therewith.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: September 12, 2017
    Assignee: The Procter & Gamble Company
    Inventors: John Andrew McDaniel, Douglas Bruce Zeik, Norman Scott Broyles, Robert Earl Magness, Dimitris Ioannis Collias, Scott Edward Smith, Matthew Aaron Neumann
  • Catalysts conversion of hydroxypropionic acid or its derivatives to acrylic acid or its derivatives
    Patent number: 9714208
    Abstract: Methods for catalytically dehydrating hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof to acrylic acid, acrylic acid derivatives, or mixtures thereof with high yield and selectivity and without significant conversion to undesired side products, such as, acetaldehyde, propionic acid, and acetic acid, are provided. The catalysts are mixed condensed phosphates.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: July 25, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Janette Villalobos, Juan Estaban Velasquez, Jane Ellen Godlewski, Dimitris Ioannis Collias