Patents by Inventor Damien Guironnet

Damien Guironnet 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: 20230295364
    Abstract: A catalyst for hydrosilylation is provided. The catalyst comprises a nanoparticle having a surface and a plurality of ligands are tethered to the surface of the nanoparticle. Each ligand includes an independently selected cyclic aliphatic hydrocarbon group having one unsaturated moiety. Platinum is bonded to the unsaturated moiety the cyclic aliphatic hydrocarbon group in the catalyst. A method of preparing the catalyst is also provided. The method comprises mixing a ligand functionalized nanoparticle and a platinum mixture to give the catalyst.
    Type: Application
    Filed: March 20, 2023
    Publication date: September 21, 2023
    Inventors: Damien GUIRONNET, Susannah MILLER
  • Patent number: 11492424
    Abstract: The inventors have discovered a method of comprising formation of water soluble catalyst precursor by combining a Group 8 to Group 11 transition metal containing catalyst and a surfactant. The surfactant is characterized by the presence of a hydrophobic segment and a hydrophilic segment. It is believed that the surfactant replaces the labile ligand on the catalyst precursor structure by simple ligand substitution. The precursor is then contacted with one or more monoethylenically unsaturated monomers under polymerization conditions to form a polymer.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: November 8, 2022
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Damien Guironnet, Camille Boucher-Jacobs
  • Publication number: 20220056166
    Abstract: The inventors have discovered a method of comprising formation of water soluble catalyst precursor by combining a Group 8 to Group 11 transition metal containing catalyst and a surfactant. The surfactant is characterized by the presence of a hydrophobic segment and a hydrophilic segment. It is believed that the surfactant replaces the labile ligand on the catalyst precursor structure by simple ligand substitution. The precursor is then contacted with one or more monoethylenically unsaturated monomers under polymerization conditions to form a polymer.
    Type: Application
    Filed: September 26, 2019
    Publication date: February 24, 2022
    Inventors: Damien Guironnet, Camille Boucher-Jacobs
  • Patent number: 10947330
    Abstract: A method for encapsulating a catalyst in a dispersed polymer particle comprising dissolving a Group 8 to Group 11 transition metal containing catalyst and a self-dispersing polymer in a solvent; adding water and optionally a base under particle forming conditions to form a dispersed polymer encapsulated catalyst comprising particles having a population number average diameter between 10 and 300 nanometers is provided.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 16, 2021
    Assignees: ROHM AND HAAS COMPANY, THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Damien Guironnet, Muhammad Rabnawaz, Ralph Even, Andrew Hughes, Joshua Katz
  • Publication number: 20200223957
    Abstract: A method for encapsulating a catalyst in a dispersed polymer particle comprising dissolving a Group 8 to Group 11 transition metal containing catalyst and a self-dispersing polymer in a solvent; adding water and optionally a base under particle forming conditions to form a dispersed polymer encapsulated catalyst comprising particles having a population number average diameter between 10 and 300 nanometers is provided.
    Type: Application
    Filed: August 20, 2018
    Publication date: July 16, 2020
    Inventors: Damien GUIRONNET, Muhammad RABNAWAZ, Ralph EVEN, Andrew HUGHES, Joshua KATZ
  • Patent number: 9174893
    Abstract: A method of making para-xylene or toluene is carried out by: (a) reacting a C5 or C6 linear monoene (itself, or formed from a C5 or C6 linear alkane) with a hydrogen acceptor in the presence of a hydrogen transfer catalyst to produce a C5 or C6 diene; (b) reacting the C5-C6 diene with ethylene to produce a cyclohexene having 1 or 2 methyl groups substituted thereon; and then (c) either (i) dehydrogenating the cyclohexene in the presence of a hydrogen acceptor with a hydrogen transfer catalyst to produce a compound selected from the group consisting of para-xylene and toluene, or (ii) dehydrogenating the cyclohexene in the absence of a hydrogen acceptor with a dehydrogenation catalyst, to produce para-xylene or toluene.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: November 3, 2015
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Maurice Brookhart, Michael Findlater, Damien Guironnet, Thomas Warren Lyons
  • Publication number: 20130237732
    Abstract: A method of making para-xylene or toluene is carried out by: (a) reacting a C5 or C6 linear monoene (itself, or formed from a C5 or C6 linear alkane) with a hydrogen acceptor in the presence of a hydrogen transfer catalyst to produce a C5 or C6 diene; (b) reacting the C5-C6 diene with ethylene to produce a cyclohexene having 1 or 2 methyl groups substituted thereon; and then (c) either (i) dehydrogenating the cyclohexene in the presence of a hydrogen acceptor with a hydrogen transfer catalyst to produce a compound selected from the group consisting of para-xylene and toluene, or (ii) dehydrogenating the cyclohexene in the absence of a hydrogen acceptor with a dehydrogenation catalyst, to produce para-xylene or toluene.
    Type: Application
    Filed: May 2, 2013
    Publication date: September 12, 2013
    Applicant: The University of North Carolina at Chapel Hill
    Inventors: Maurice Brookhart, Michael Findlater, Damien Guironnet, Thomas Warren Lyons