Patents by Inventor Sunny S. Shen

Sunny S. Shen 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).

  • Transistors incorporating substrates comprising liquid crystal polymers
    Patent number: 5998804
    Abstract: Disclosed in this invention are transistors which contain substrates that are made of liquid crystalline polymers. Such substrates are compatible with semiconducting layers especially organic semiconducting layers. This enables one to prepare all organic transistors.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: December 7, 1999
    Assignee: HNA Holdings, Inc.
    Inventors: Suk Youn Suh, Sunny S. Shen
  • Polyester film and methods for making same
    Patent number: 5958581
    Abstract: A polyester film made from a polymer having ethylene glycol moieties, isosorbide moieties and terepthaloyl moieties, and the method of making the film is described. The polyester film is used to form articles such as films, lacquers, labels, capacitors, insulators, and the like, and has an inherent viscosity of at least 0.35 dL/g when measured as a 1% (weight/volume) solution of the polyester in o-chlorophenol at a temperature of 25.degree. C.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: September 28, 1999
    Assignee: HNA Holdings, Inc.
    Inventors: Garo Khanarian, Larry F. Charbonneau, Carol Kitchens, Sunny S. Shen
  • Polarizer films comprising aromatic liquid crystalline polymers comprising dichroic dyes in their main chains
    Patent number: 5746949
    Abstract: This invention provides novel liquid crystalline polymers which comprise, in the repeat units of their main chains, residues of suitable dichroic dyes. The polymers yield polarizer films with superior polarizing efficiency, transmittance, dichroic ratio, and thermal and humidity stability. The invention further discloses suitable processes to prepare such polymers and polarizer films therefrom.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: May 5, 1998
    Assignee: Hoechst Celanese Corp.
    Inventors: Sunny S. Shen, David W. Polis, Hyun N. Yoon, Tze-Pei Tien
  • Laminates of liquid crystalline polymeric films for polarizer applications
    Patent number: 5738918
    Abstract: This invention provides laminates useful for display device applications. An illustrative laminate comprises a polarizing film, and a protective layer, bonded by means of an intermediary adhesive layer. A polarizing film useful for such a laminate construction comprises a liquid crystalline polyester and a dichroic dye. The invention further provides a process to prepare such laminates.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: April 14, 1998
    Assignee: Hoechst Celanese Corp
    Inventors: Sunny S. Shen, Hyun Nam Yoon, Chia-Chi Teng
  • Polarizer films comprising wholly aromatic liquid crystalline polymers and dichroic dyes
    Patent number: 5738803
    Abstract: This invention provides novel liquid crystalline polymers which, when mixed with a suitable dye and extruded, yields polarizer films with superior polarizing efficiency, transmittance, dichroic ratio, and thermal and humidity stability. The invention further provides a process to prepare such polymers and polarizer films therefrom.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: April 14, 1998
    Assignee: Hoechst Celanese Corp
    Inventors: James P. Shepherd, Sunny S. Shen, Brian B. Marr, Larry F. Charbonneau
  • Process for preparing high performance polarizer films
    Patent number: 5707566
    Abstract: This invention provides a novel process to prepare high performance polarizing film. In one embodiment, the process includes melt-blending a film-forming wholly aromatic thermotropic liquid crystalline polyester and a dichroic dye and then extruding the blend at a suitable temperature to yield polarizer films with superior polarizing efficiency and thermal and humidity stability.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: January 13, 1998
    Assignee: Hoechst Celanese Corp.
    Inventors: Sunny S. Shen, Tze-Pei Tien, Hyun Nam Yoon
  • Polarizer films comprising wholly aromatic liquid crystalline polymers and dichroic dyes
    Patent number: 5672296
    Abstract: This invention provides novel liquid crystalline polymers which, when mixed with a suitable dye and extruded, yields polarizer films with superior polarizing efficiency, transmittance, dichroic ratio, and thermal and humidity stability. The invention further provides a process to prepare such polymers and polarizer films therefrom.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 30, 1997
    Assignee: Hoechst Celanese Corp.
    Inventors: Sunny S. Shen, Hyun Nam Yoon, Mohammad Mortazavi
  • Polyester from terephthalic acid, 6-hydroxy-2-naphthoic acid, 4-hydroxybenzoic acid, 4,4'-biphenol and resorcinol
    Patent number: 5656714
    Abstract: An aromatic polyester having recurring monomer units derived from terephthalic acid, 6-hydroxy-2-naphthoic acid, p-hydroxybenzoic acid, 4,4'-biphenol, and resorcinol. This polyester is melt processible and may be amorphous or semi-crystalline.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: August 12, 1997
    Assignee: Hoechst Celanese Corp.
    Inventors: Sunny S. Shen, Larry F. Charbonneau