Patents by Inventor Tung-Ying Hsieh

Tung-Ying Hsieh 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).

  • Catalyst composition for preparing olefin polymers
    Publication number: 20030212221
    Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon, silicon, germanium or tin) in a ring structure. The bite angle 0 formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions.
    Type: Application
    Filed: June 12, 2003
    Publication date: November 13, 2003
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei, Chao-Ying Yu
  • Catalyst composition for preparing olefin polymers
    Publication number: 20030139284
    Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon, silicon, germanium or tin) in a ring structure. The bite angle &thgr; formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions.
    Type: Application
    Filed: September 17, 2002
    Publication date: July 24, 2003
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei, Chao-Ying Yu
  • Catalyst composition for preparing olefin polymers
    Publication number: 20020183195
    Abstract: A catalyst composition which can be used for preparing olefin polymers. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions.
    Type: Application
    Filed: February 22, 2002
    Publication date: December 5, 2002
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jing-Cheng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei
  • Catalyst composition for preparing olefin polymers
    Publication number: 20020147104
    Abstract: A catalyst composition for preparing olefin polymers. The catalyst composition includes a metallocene compound and an activating cocatalyst. In the metallocene compound, two cyclopentadienyl groups are bridged by X (carbon, silicon, germanium or tin) in a ring structure. The bite angle &thgr; formed by the two cyclopentadienyl rings and X is equal to or greater than 100 degrees. The obtained olefin polymer has high cycloolefin conversion and a high glass transition temperature. In addition, the catalyst composition can still maintain relatively high activity at high temperature reaction conditions.
    Type: Application
    Filed: January 28, 2002
    Publication date: October 10, 2002
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jing-Cherng Tsai, Ming-Yuan Wu, Tung-Ying Hsieh, Yuh-Yuan Wei