Patents by Inventor Junling JI

Junling JI 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 preparing color masterbatch with natural dye
    Patent number: 11535718
    Abstract: A method for preparing a color masterbatch with a natural dye is disclosed. The new method uses a phase change material tetradecane as one of the solvents to extract the natural dye, the extracted natural dye as a core material, and polybutylene succinate as a wall material to microencapsulate the natural dye containing the phase change material by a solvent evaporation method to prepare natural dye microcapsules, then melt-blends with a carrier resin, extrudes and granulates to obtain the color masterbatch with the natural dye. The microencapsulation improves the thermal stability of natural dye and compatibility with carrier resin The obtained color masterbatch with natural dye has excellent heat resistance, and the fabric obtained after spinning with it has good color fastness to hot pressing.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: December 27, 2022
    Assignee: CHANGZHOU UNIVERSITY
    Inventors: Qun Chen, Yonggang Peng, Junling Ji, Haiqun Chen, Yuan Wang, Junjie Tan
  • METHOD FOR PREPARING COLOR MASTERBATCH WITH NATURAL DYE
    Publication number: 20220306819
    Abstract: A method for preparing a color masterbatch with a natural dye is disclosed. The new method uses a phase change material tetradecane as one of the solvents to extract the natural dye, the extracted natural dye as a core material, and polybutylene succinate as a wall material to microencapsulate the natural dye containing the phase change material by a solvent evaporation method to prepare natural dye microcapsules, then melt-blends with a carrier resin, extrudes and granulates to obtain the color masterbatch with the natural dye. The microencapsulation improves the thermal stability of natural dye and compatibility with carrier resin The obtained color masterbatch with natural dye has excellent heat resistance, and the fabric obtained after spinning with it has good color fastness to hot pressing.
    Type: Application
    Filed: October 14, 2020
    Publication date: September 29, 2022
    Applicant: CHANGZHOU UNIVERSITY
    Inventors: Qun CHEN, Yonggang PENG, Junling JI, Haiqun CHEN, Yuan WANG, Junjie TAN