Patents by Inventor Wen-Teng Chang

Wen-Teng Chang 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).

  • Publication number: 20250034312
    Abstract: A modified polyurethane material and a method for manufacturing the same are provided. A dianhydride is added into an aliphatic diisocyanate to form a liquid reactant. A solvent is absent from the liquid reactant. An oligomerization is implemented onto the liquid reactant so as to form an oligomer having a terminal isocyanate group. A polyol and a curative are added into the oligomer having the terminal isocyanate group for a polymerization so as to form the modified polyurethane. Based on a total weight of the modified polyurethane being 100 wt %, a content of a hard segment of the modified polyurethane ranges from 15 wt % to 45 wt %.
    Type: Application
    Filed: June 25, 2024
    Publication date: January 30, 2025
    Inventors: CHIH-LUNG LIN, YI-JYUN LOU, WEN-TENG CHANG, YU-RU WANG, CHEN-TA CHEN
  • Publication number: 20200208023
    Abstract: The invention provides an adhesive composition. The adhesive composition includes a halohydrin compound, a blocked isocyanate compound and latex, in which the adhesive composition does not include resorcinol, formaldehyde and epoxy compound. The invention also provides a method for treating organic fiber. The method includes impregnating an organic fiber or a fabric with the abovementioned adhesive composition; and drying the organic fiber or the fabric.
    Type: Application
    Filed: December 4, 2019
    Publication date: July 2, 2020
    Inventors: Wen-Teng CHANG, Yu-Ting LEE
  • Publication number: 20140197359
    Abstract: An oxygen-scavenging composition includes a sulfide group-containing polyester and a catalyst. The sulfide group-containing polyester is obtained by subjecting a reaction composition to esterification and condensation reactions. The reaction composition includes an aromatic diacid component and a diol component including aliphatic diol and a diol compound represented by the following formula (I): HO—(X1—O)n—X3—S—X4—(O—X2)m—OH??(I) wherein X1 and X2 independently represent a C1-C6 alkylene group, X3 and X4 represent a C6-C10 arylene group, and m and n represent an integer ranging from 1 to 5. The catalyst is for inducing reaction between the sulfide group-containing polyester and oxygen.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 17, 2014
    Applicant: FAR EASTERN NEW CENTURY CORPORATION
    Inventors: Fa-Chen Chi, Yi-Hsuan Tang, Yu-Shiang Peng, Wen-Teng Chang