Patents by Inventor Jinqing QU

Jinqing QU 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).

  • Low-viscosity hydroxyl-terminated resin with diisocyanate as a core, and preparation method therefor and use thereof
    Patent number: 11319400
    Abstract: The invention discloses a low-viscosity hydroxyl-terminated resin with diisocyanate as a core, and a preparation method therefor and the use thereof. During preparation, 1 mole of a micromolecular polyol is first modified with 1-3 moles of a monoepoxide so as to obtain a modified polyol; and then 2 moles of the modified polyol is reacted with 1-3 moles of a diisocyanate so as to obtain the hydroxyl-terminated resin. The prepared hydroxyl-terminated resin has the advantages of simple synthesis process, high solid content and low viscosity; the hydroxyl value thereof (at 80% solid mass content) is 140-300 mg KOH/g and the viscosity thereof at 25° C. (at 80% solid mass content) is 300-3000 cp.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: May 3, 2022
    Assignees: SOUTH CHINA UNIVERSITY OF TECHNOLOGY, CARPOLY CHEMICAL GROUP CO., LTD.
    Inventors: Jinqing Qu, Shan Huang, Yan'An Zhu, Ronghua Chen
  • A LOW-VISCOSITY HYDROXYL-TERMINATED RESIN WITH DIISOCYANATE AS A CORE, AND PREPARATION METHOD THEREFOR AND USE THEREOF
    Publication number: 20190322792
    Abstract: The invention discloses a low-viscosity hydroxyl-terminated resin with diisocyanate as a core, and a preparation method therefor and the use thereof. During preparation, 1 mole of a micromolecular polyol is first modified with 1-3 moles of a monoepoxide so as to obtain a modified polyol; and then 2 moles of the modified polyol is reacted with 1-3 moles of a diisocyanate so as to obtain the hydroxyl-terminated resin. The prepared hydroxyl-terminated resin has the advantages of simple synthesis process, high solid content and low viscosity; the hydroxyl value thereof (at 80% solid mass content) is 140-300 mg KOH/g and the viscosity thereof at 25° C. (at 80% solid mass content) is 300-3000 cp.
    Type: Application
    Filed: November 14, 2017
    Publication date: October 24, 2019
    Applicants: SOUTH CHINA UNIVERSITY OF TECHNOLOGY, CARPOLY CHEMICAL GROUP CO., LTD.
    Inventors: Jinqing QU, Shan HUANG, Yan'an ZHU, Ronghua CHEN