Patents by Inventor Joseph Jankolovits

Joseph Jankolovits 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).

  • Patent number: 10968284
    Abstract: The present invention is a multilayered composite comprising porous metal oxide particles that are covalently bonded by way of inorganic ether groups to one or more sites of a first polyhydroxyl-functionalized polymer. This first polymer is in turn covalently bonded by way of inorganic ether groups to one or more sites of a second polyhydroxyl-functionalized polymer. The multilayered composites can be prepared by contacting porous inorganic-oxide particles with a sufficient amount of OH-reactive crosslinking agent to form metal oxide particles imbibed with the crosslinking agent, and then contacting the inorganic-oxide particles with a solution of polyhydroxyl-functionalized polymer under reactive conditions.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: April 6, 2021
    Assignees: The Regents of the University of California, Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Joseph Jankolovits, Alexander S. Katz, Oz M. Gazit, James C. Bohling, John A. Roper, III
  • Publication number: 20190111442
    Abstract: Methods and systems for the flotation recovery of value materials from sulfide mineral sources are disclosed. The flotation recovery of the value materials is performed in a fluidized bed flotation cell utilizing collector materials that include at least one hydrocarbyl group and at least one functional group including sulfur on the hydrocarbyl group, and the hydrocarbyl group includes 2 or more aliphatic carbons and 6 or more total carbons. The methods and systems of the present disclosure advantageously allow for improved recovery of coarse-sized particles, which reduces time and energy expending during sample grinding stages. The methods and systems of the present disclosure also do not exhibit the detrimental frothing behaviors which can be associated with long-chain collectors typically having 6 or more carbon atoms. The systems and methods can be incorporated into existing processing systems to treat samples before or after conventional processing stages.
    Type: Application
    Filed: October 11, 2018
    Publication date: April 18, 2019
    Applicant: Cytec Industries Inc.
    Inventors: Joseph JANKOLOVITS, Tarun BHAMBHANI, Devarayasamudram R. NAGARAJ
  • Patent number: 10174057
    Abstract: A metallacrown complex has the formula: Ln(III)[12-MC-4]2[24-MC-8], wherein MC is a metallacrown macrocycle with a repeating sub-unit consisting of a transition metal (M(II)) and a hydroxamic acid (HA) ligand that produces a ligand-based charge transfer state when incorporated into the metallacrown complex. In an example of a method for making the metallacrown complex, a hydroxamic acid (HA) ligand that is to produce a ligand-based charge transfer state when incorporated into the metallacrown complex, a transition metal salt, and a rare-earth salt are dissolved in a solvent to form a solution. A base is added to the solution. The solution is stirred at a predetermined temperature for a predetermined time. The solution is exposed to a purification method to produce crystals of the metallacrown complex.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: January 8, 2019
    Assignees: The Regents of The University of Michigan, Centre National De La Recherche Scientifique
    Inventors: Evan R. Trivedi, Vincent L. Pecoraro, Svetlana V. Eliseeva, Stephane Petoud, Joseph Jankolovits, Alexandra Foucault-Collet, Ivana Martinic
  • Patent number: 9957403
    Abstract: The present invention relates to a composition comprising a) a stable aqueous dispersion of inorganic pigment particles hydrophobically modified with covalently bonded polysiloxane or silyl groups; and b) a polymeric anionic dispersant; wherein the hydrophobically modified inorganic pigment particles have an average particle size in the range of from 200 nm to 10 ?m, and the solids content of the hydrophobically modified inorganic pigment particles is from 10 to 80 weight percent, based on the weight of inorganic pigment particles and water. The composition of the present invention provides a way to improve water resistance in coatings formulations.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: May 1, 2018
    Assignees: The Regents of the University of California, Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Joseph Jankolovits, Alexander Katz, James C. Bohling, Clayton J. Radke, Antony K. Van Dyk, John A. Roper, III
  • Patent number: 9796793
    Abstract: The present invention is a multilayered composite comprising porous metal oxide particles that are covalently bonded by way of inorganic ether groups to one or more sites of a first polyhydroxyl-functionalized polymer. This first polymer is in turn covalently bonded by way of inorganic ether groups to one or more sites of a second polyhydroxyl-functionalized polymer. The multilayered composites can be prepared by contacting porous inorganic-oxide particles with a sufficient amount of OH-reactive crosslinking agent to form metal oxide particles imbibed with the crosslinking agent, and then contacting the inorganic-oxide particles with a solution of polyhydroxyl-functionalized polymer under reactive conditions.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: October 24, 2017
    Assignees: The Regents of the University of California, Dow Global Technologies LLC, Rohm and Haas Company
    Inventors: Joseph Jankolovits, Alexander S. Katz, Oz M. Gazit, James C. Bohling, John A. Roper, III
  • Publication number: 20170145219
    Abstract: The present invention is a multilayered composite comprising porous metal oxide particles that are covalently bonded by way of inorganic ether groups to one or more sites of a first polyhydroxyl-functionalized polymer. This first polymer is in turn covalently bonded by way of inorganic ether groups to one or more sites of a second polyhydroxyl-functionalized polymer. The multilayered composites can be prepared by contacting porous inorganic-oxide particles with a sufficient amount of OH-reactive crosslinking agent to form metal oxide particles imbibed with the crosslinking agent, and then contacting the inorganic-oxide particles with a solution of polyhydroxyl-functionalized polymer under reactive conditions.
    Type: Application
    Filed: February 2, 2017
    Publication date: May 25, 2017
    Inventors: Joseph Jankolovits, Alexander S. Katz, Oz M. Gazit, James C. Bohling, John A. Roper, III
  • Publication number: 20170022384
    Abstract: The present invention relates to a composition comprising a) a stable aqueous dispersion of inorganic pigment particles hydrophobically modified with covalently bonded polysiloxane or silyl groups; and b) a polymeric anionic dispersant; wherein the hydrophobically modified inorganic pigment particles have an average particle size in the range of from 200 nm to 10 ?m, and the solids content of the hydrophobically modified inorganic pigment particles is from 10 to 80 weight percent, based on the weight of inorganic pigment particles and water. The composition of the present invention provides a way to improve water resistance in coatings formulations.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 26, 2017
    Inventors: Joseph Jankolovits, Alexander Katz, James C. Bohling, Clayton J. Radke, Antony K. Van Dyk, John A. Roper, III
  • Publication number: 20160215001
    Abstract: A metallacrown complex has the formula: Ln(III)[12-MC-4]2[24-MC-8], wherein MC is a metallacrown macrocycle with a repeating sub-unit consisting of a transition metal (M(II)) and a hydroxamic acid (HA) ligand that produces a ligand-based charge transfer state when incorporated into the metallacrown complex. In an example of a method for making the metallacrown complex, a hydroxamic acid (HA) ligand that is to produce a ligand-based charge transfer state when incorporated into the metallacrown complex, a transition metal salt, and a rare-earth salt are dissolved in a solvent to form a solution. A base is added to the solution. The solution is stirred at a predetermined temperature for a predetermined time. The solution is exposed to a purification method to produce crystals of the metallacrown complex.
    Type: Application
    Filed: September 5, 2014
    Publication date: July 28, 2016
    Inventors: Evan R. Trivedi, Vincent L. Pecoraro, Svetlana V. Eliseeva, Stephane Petoud, Joseph Jankolovits, Alexandra Foucault-Collet, Ivana Martinic
  • Publication number: 20150073134
    Abstract: The present invention is a multilayered composite comprising porous metal oxide particles that are covalently bonded by way of inorganic ether groups to one or more sites of a first polyhydroxyl-functionalized polymer. This first polymer is in turn covalently bonded by way of inorganic ether groups to one or more sites of a second polyhydroxyl-functionalized polymer. The multilayered composites can be prepared by contacting porous inorganic-oxide particles with a sufficient amount of OH-reactive crosslinking agent to form metal oxide particles imbibed with the crosslinking agent, and then contacting the inorganic-oxide particles with a solution of polyhydroxyl-functionalized polymer under reactive conditions.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 12, 2015
    Applicants: The Regents of the University of California, Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: Joseph Jankolovits, Alexander S. Katz, Oz M. Gazit, James C. Bohling, John A. Roper, III