Patents by Inventor Brendan O'Keefe

Brendan O'Keefe 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: 11859043
    Abstract: There is provided herein a silylated polyurethane composition, a process of preparing a silylated polyurethane polymer, and an adhesive, sealant or coating containing a silylated polyurethane made therewith.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: January 2, 2024
    Assignee: Momentive Performance Materials Inc.
    Inventor: Brendan O'Keefe
  • Publication number: 20220017683
    Abstract: There is provided herein a silylated polyurethane composition, a process of preparing a silylated polyurethane polymer, and an adhesive, sealant or coating containing a silylated polyurethane made therewith.
    Type: Application
    Filed: July 17, 2020
    Publication date: January 20, 2022
    Inventor: Brendan O'Keefe
  • Patent number: 10556983
    Abstract: A batch or continuous process for preparing silylated polymers having low color and color stability comprising silylating a prepolymer having reactive functional groups with a silylating agent and optionally quenching the silylated polymer, where a stabilizer package containing at least one phosphite stabilizing agent is used.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: February 11, 2020
    Assignee: Momentive Performance Materials Inc.
    Inventors: John Banevicius, Misty Huang, Brendan O'Keefe, Vikram Kumar, Bruce Barbera
  • Patent number: 10336857
    Abstract: A continuous process for preparing a silylated polymer comprising a silylation step where a prepolymer having reactive functional groups, a first intermediate product, is reacted continuously with a silylating agent in an endcapping tubular reaction unit to form a second intermediate product, and where at least a portion of the second intermediate product is backmixed continuously with the first intermediate product to form the silylated polymer. The continuous process may further comprise a stabilization step, a quenching step or both a stabilization step and a quenching step.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: July 2, 2019
    Assignee: Momentive Performance Materials Inc.
    Inventors: John Banevicius, Misty Huang, Brendan O'Keefe, Vikram Kumar, Bruce Barbera
  • Publication number: 20190112415
    Abstract: A batch or continuous process for preparing silylated polymers having low color and color stability comprising silylating a prepolymer having reactive functional groups with a silylating agent and optionally quenching the silylated polymer, where a stabilizer package containing at least one phosphite stabilizing agent is used.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 18, 2019
    Inventors: John Banevicius, Misty Huang, Brendan O'Keefe, Vikram Kumar, Bruce Barbera
  • Patent number: 10138324
    Abstract: A batch or continuous process for preparing silylated polymers having low color and color stability comprising silylating a prepolymer having reactive functional groups with a silylating agent and optionally quenching the silylated polymer, where a stabilizer package containing at least one phosphite stabilizing agent is used.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: November 27, 2018
    Assignee: Momentive Performance Materials Inc.
    Inventors: John Banevicius, Misty Huang, Brendan O'Keefe, Vikram Kumar, Bruce Barbera
  • Publication number: 20180044466
    Abstract: A continuous process for preparing a silylated polymer comprising a silylation step where a prepolymer having reactive functional groups, a first intermediate product, is reacted continuously with a silylating agent in an endcapping tubular reaction unit to form a second intermediate product, and where at least a portion of the second intermediate product is backmixed continuously with the first intermediate product to form the silylated polymer. The continuous process may further comprise a stabilization step, a quenching step or both a stabilization step and a quenching step.
    Type: Application
    Filed: October 26, 2017
    Publication date: February 15, 2018
    Inventors: John Banevicius, Misty Huang, Brendan O'Keefe, Vikram Kumar, Bruce Barbera
  • Patent number: 9828459
    Abstract: A continuous process for preparing a silylated polymer comprising a silylation step where a prepolymer having reactive functional groups, a first intermediate product, is reacted continuously with a silylating agent in an endcapping tubular reaction unit to form a second intermediate product, and where at least a portion of the second intermediate product is backmixed continuously with the first intermediate product to form the silylated polymer. The continuous process may further comprise a stabilization step, a quenching step or both a stabilization step and a quenching step.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: November 28, 2017
    Assignee: Momentive Performance Materials Inc.
    Inventors: John Banevicius, Misty Huang, Brendan O'Keefe, Vikram Kumar, Bruce Barbera
  • Publication number: 20170044302
    Abstract: A batch or continuous process for preparing silylated polymers having low color and color stability comprising silylating a prepolymer having reactive functional groups with a silylating agent and optionally quenching the silylated polymer, where a stabilizer package containing at least one phosphite stabilizing agent is used.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 16, 2017
    Inventors: John Banevicius, Misty Huang, Brendan O'Keefe, Vikram Kumar, Bruce Barbera
  • Publication number: 20170044303
    Abstract: A continuous process for preparing a silylated polymer comprising a silylation step where a prepolymer having reactive functional groups, a first intermediate product, is reacted continuously with a silylating agent in an endcapping tubular reaction unit to form a second intermediate product, and where at least a portion of the second intermediate product is backmixed continuously with the first intermediate product to form the silylated polymer. The continuous process may further comprise a stabilization step, a quenching step or both a stabilization step and a quenching step.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 16, 2017
    Inventors: John Banevicius, Misty Huang, Brendan O'Keefe, Vikram Kumar, Bruce Barbera
  • Patent number: 9321878
    Abstract: The present invention relates to a process for preparing silylated polyurethane polymers which have increased stability under ambient condition or storage toward atmospheric moisture, in the presence of at least one of titanium-containing catalyst or zirconium-containing catalyst and to silylated polyurethane polymer compositions comprising these catalysts.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: April 26, 2016
    Assignee: Momentive Performance Materials Inc.
    Inventors: Misty Huang, Vikram Kumar, Thomas Lim, Constantine Kondos, Brendan O'Keefe
  • Publication number: 20150166719
    Abstract: The present invention relates to a process for preparing silylated polyurethane polymers which have increased stability under ambient condition or storage toward atmospheric moisture, in the presence of at least one of titanium-containing catalyst or zirconium-containing catalyst and to silylated polyurethane polymer compositions comprising these catalysts.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 18, 2015
    Applicant: Momentive Performance Materials Inc.
    Inventors: Misty Huang, Vikram Kumar, Thomas Lim, Constantine Kondos, Brendan O'Keefe
  • Publication number: 20070100108
    Abstract: A process is provided for making a moisture-curable silylated resin composition by reacting (i) at least one polyol, (ii) at least one polyisocyanate and (iii) at least one isocyanatosilane, optionally in the presence of catalyst, wherein the NCO/OH ratio is less than 1. The resulting moisture-curable silylated resin composition is useful in the manufacturer of each product as moisture-curable sealants, coatings and adhesives.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 3, 2007
    Inventors: Misty Huang, Frank Medicino, Yurun Yang, Jeries Nesheiwat, Brendan O'Keefe