Patents by Inventor Xingguang DONG

Xingguang DONG 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).

  • Method for manufacturing textile waste into fiber grade polyester chips applicable to textile processing
    Publication number: 20200190280
    Abstract: The present invention provides a method for manufacturing textile waste into fiber grade polyester chips applicable to textile processing. The method comprises textile waste crushing, alcoholysis, filtering and separation, cooling crystallization, pressing, decoloration, distillation purification, preheating, prepolycondensation, polycondensation, cooling strip casting, and cutting into particles. By reducing textile waste to high purity bis(2-hydroxyethyl)terephthalate (hereinafter referred to as BHET), fiber grade polyester chips applicable to textile processing are re-manufactured. Thus, efficient recycling is achieved.
    Type: Application
    Filed: May 4, 2018
    Publication date: June 18, 2020
    Inventors: Shuguang LIN, Xingguang DONG, Junsheng LUO, Zhengqi ZHOU