Patents by Inventor Wei-Lin Zheng

Wei-Lin Zheng 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).

  • Copolyester and use thereof
    Patent number: 11795269
    Abstract: The present invention relates to a copolyester that includes following structural units: a first chain segment shown in Formula (I): and a second chain segment shown in Formula (II): where the glass transition temperature (Tg) of the copolyester is 60° C. to 83° C. The present invention also provides a polyester fiber or packaging material containing the copolyester.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: October 24, 2023
    Assignee: FAR EASTERN NEW CENTURY CORPORATION
    Inventors: Wei-Lin Zheng, Fa-Chen Chi, Shu-Wei Liu, Ruey-Fen Liao
  • NOVEL COPOLYESTER AND USE THEREOF
    Publication number: 20220227923
    Abstract: The present invention relates to a copolyester that includes following structural units: a first chain segment shown in Formula (I): and a second chain segment shown in Formula (II): where the glass transition temperature (Tg) of the copolyester is 60° C. to 83° C. The present invention also provides a polyester fiber or packaging material containing the copolyester.
    Type: Application
    Filed: December 27, 2021
    Publication date: July 21, 2022
    Inventors: WEI-LIN ZHENG, FA-CHEN CHI, SHU-WEI LIU, RUEY-FEN LIAO
  • PROCESS FOR PREPARING 2,5-FURANDICARBOXYLIC ACID
    Publication number: 20200123123
    Abstract: A process for preparing 2,5-furandicarboxylic acid includes the steps of: subjecting an 5-acyloxymethyl-furfural compound to an oxidation reaction with an oxygen-containing gas in the presence of a basic aqueous solution and an oxidation catalyst containing a metal selected from the group consisting of ruthenium, rhodium, palladium, and combinations thereof to form an aqueous solution containing 2,5-furandicarboxylate, and converting the 2,5-furandicarboxylate to 2,5-furandicarboxylic acid.
    Type: Application
    Filed: March 27, 2019
    Publication date: April 23, 2020
    Inventors: Wei-Lin Zheng, Xin-An Lu