Patents by Inventor Parfait Jean Marie Likibi

Parfait Jean Marie Likibi 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).

  • Polymeric substrate for display and light emitting devices
    Publication number: 20030207050
    Abstract: A polymeric substrate comprising a high glass transition temperature polycarbonate for use in optical display devices and light emitting devices is provided in the present invention. A liquid crystal display, an organic electroluminescent device, and methods for use including the aforementioned polymeric substrate are also provided in the present invention.
    Type: Application
    Filed: April 29, 2002
    Publication date: November 6, 2003
    Inventors: Grant Hay, Marc Schaepkens, Zhaohui Su, Parfait Jean Marie Likibi, Nicholas Donald Abbatiello, James Alan Mahood
  • Polysulfone/polysiloxane polycarbonate block copolymers
    Patent number: 6566458
    Abstract: A block copolymer comprises structural units of the formula (I): wherein R1 comprises polysulfone groups and structural units of the formula (II): wherein R2 comprises polysiloxane groups.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: May 20, 2003
    Assignee: General Electric Company
    Inventors: Miles A. Duncan, Lioba M. Kloppenburg, Parfait Jean Marie Likibi
  • Polysulfone/polysiloxane polycarbonate block copolymers
    Publication number: 20020115791
    Abstract: A block copolymer comprises structural units of the formula (I): 1
    Type: Application
    Filed: December 14, 2000
    Publication date: August 22, 2002
    Applicant: General Electric Company
    Inventors: Miles A. Duncan, Lioba M. Kloppenburg, Parfait Jean Marie Likibi
  • Synthesis of phenolic monomers containing imide or diimide moieties and high heat carbonate polymers prepared therefrom
    Patent number: 6096853
    Abstract: A process has been surprisingly discovered that can produce a high heat carbonate polymer (i.e., one with a Tg greater that 150.degree. C.), without the drawbacks encountered in attempts to produce a high heat carbonate polymer. The process of the instant invention comprises the steps of:(1) reacting an aromatic amine with a dihydric phenol to prepare an aminophenol;(2) reacting an anhydride or dianhydride with the aminophenol to prepare a phenolic precursor; and(3) reacting the phenolic precursor with a carbonate precursor to prepare a high heat carbonate polymer.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: August 1, 2000
    Assignee: General Electric Company
    Inventors: Valentina Amerik, Theodorus L. Hoeks, Parfait Jean Marie Likibi, Mark Nelson
  • Oxanilide U-V absorbers
    Patent number: 5847196
    Abstract: Oxalic acid diarylamides are described as useful monomers and comonomers in the polymerization of polycarbonates. The resin products resist degradation by ultra-violet light radiation. They can also be incorporated as comonomer or monomer in the polyester, polyester, polyether, polyethersulfone resins. They can also be used as UV stabilizers in the aforemetioned systems.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: December 8, 1998
    Assignee: General Electric Company
    Inventor: Parfait Jean Marie Likibi
  • Oxanilide U-V absorbers
    Patent number: 5698732
    Abstract: Oxalic acid diarylamides are described as useful monomers and comonomers in the polymerization of polycarbonates. The resin products resist degradation by ultra-violet light radiation. They can also be incorporated as comonomer or monomer in the polyester, polyester, polyether, polyethersulfone resins. They can also be used as UV stabilizers in the aforemetioned systems.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: December 16, 1997
    Assignee: General Electric Company
    Inventor: Parfait Jean Marie Likibi