Patents by Inventor Shougang He

Shougang He 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).

  • Polyesters and production process thereof
    Patent number: 6455666
    Abstract: A polyester is a polycondensation product of (i) a diol component and (ii) a dicarboxylic acid component. In this polyester, the diol component (i) includes a tricyclo[3.3.1.13,7]decanediol of following Formula (1): wherein n is 0 or a positive integer, and carbon atoms constituting a ring may each have a substituent, or the dicarboxylic acid component (ii) includes a tricyclo[3.3.1.13,7]decanedicarboxylic acid of following Formula (2): wherein m is 0 or a positive integer, and carbon atoms constituting a ring may each have a substituent. The polyester has high heat resistance, low water absorbency, excellent optical characteristics and satisfactory moldability.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: September 24, 2002
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Tadashi Teranishi, Shougang He, Kouichi Umemoto
  • Novel polyesters and production process thereof
    Publication number: 20020042496
    Abstract: A polyester is a polycondensation product of (i) a diol component and (ii) a dicarboxylic acid component. In this polyester, the diol component (i) includes a tricyclo[3.3.1.
    Type: Application
    Filed: October 11, 2001
    Publication date: April 11, 2002
    Inventors: Tadashi Teranishi, Shougang He, Kouichi Umemoto
  • Functional polyester polymer and production process thereof
    Patent number: 6344534
    Abstract: A polyester polymer is a condensation product of a diol component and a dicarboxylic acid component, and the diol component (i) includes at least one tricyclo[5.2.1.02,6]decanedimethanol represented by the following formula (1): wherein two hydroxymethyl groups are bound to carbon atoms constituting tricyclo[5.2.1.02,6]decane ring and wherein each of carbon atoms constituting the ring may have at least one additional substituent; or (ii) the dicarboxylic acid component includes at least one tricyclo[5.2.1.02,6]decanedicarboxylic acid represented by the following formula (2): wherein two carboxyl groups are bound to carbon atoms constituting tricyclo[5.2.1.02,6]decane ring and wherein each of carbon atoms constituting the ring may have at least one additional substituent. The polyester polymer has an excellent formability in addition to a high heat resistance, low water absorption property, and satisfactory optical characteristics.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: February 5, 2002
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Shougang He, Tadashi Teranishi
  • Functional polyester polymer and production process thereof
    Publication number: 20010021766
    Abstract: A polyester polymer is a condensation product of a diol component and a dicarboxylic acid component, and the diol component (i) includes at least one tricyclo[5.2.1.
    Type: Application
    Filed: February 28, 2001
    Publication date: September 13, 2001
    Inventors: Shougang He, Tadashi Teranishi