Patents by Inventor Wen-Bin Shiu

Wen-Bin Shiu 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).

  • Preparation of block copolyether-ester-amides
    Patent number: 5280087
    Abstract: Disclosed is a novel two-step reaction method for preparing block copolyether-ester-amides. In the first step, caprolactam or other lactam is reacted with a polyether polyol in the presence of a catalyst to form an amino-terminated prepolymer with both a polyamide hard segment and a polyether soft segment. In the second step, the prepolymer is reacted with a dicarboxylic acid as a chain extender to form high molecular weight block copolyether-ester-amides.The block copolyether-ester-amides prepared by this method are transparent, easily moldable by conventional processing methods such as extrusion and injection molding, and exhibit excellent mechanical properties.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: January 18, 1994
    Assignee: Industrial Technology Research Institute
    Inventors: Lie-Zen Chung, De-Lun Kou, Wen-Bin Shiu, Fu-Le Lin