Patents by Inventor John Banevicius

John Banevicius 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: 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
  • Publication number: 20070060735
    Abstract: A process for the continuous production of silylated prepolymer includes continuously introducing a predetermined quantity of a polyol into at least one reaction zone; continuously introducing a silylating agent into the at least one reaction zone; continuously reacting the polyol under reaction conditions of temperature and time sufficient to produce a silylated prepolymer resin; and, continuously removing the silylated prepolymer resin from the at least one reaction zone.
    Type: Application
    Filed: September 14, 2005
    Publication date: March 15, 2007
    Inventors: John Banevicius, Misty Huang