Patents by Inventor Guixiang ZHANG

Guixiang ZHANG 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).

  • Reactive navy to black dye composition and dye product thereof
    Patent number: 10954392
    Abstract: A reactive navy to black dye composition comprises component A and component B, wherein component A is selected from one or more compounds of formula (I), component B is selected from one or more compounds of formula (II); D1 and D2 are each independently a group represented by the following formula (a) or (b) or (c); R1-R12 are each independently selected from the group consisting of H, linear or branched C1˜C4 alkyl, C1˜C4 alkoxy and sulfo; m, n=0-3, and every R3 is each independently selected from the group consisting of amino, sulfo, ureido, C1˜C4 alkanoylamino, C1˜C4 alkoxy and C1˜C4 alkyl, every R6 is each independently selected from the group consisting of amino, hydroxyl and sulfo; X1-X3 are each independently selected from the group consisting of H, C1˜C4 alkyl, C1˜C4 alkoxy, —SO2Y1, —NHCO(CH2)pSO2Y2 and —CONH(CH2)qSO2Y3, and at least one of D1 and D2 contains a fiber-reactive group, p, q=1-3, and Y1˜Y5 are each independently selected from the group consisting of —CH?CH2, —C2H4OSO3H and —CH2CH2Cl.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: March 23, 2021
    Assignees: ZHEJIANG KEYONG CHEMICAL CO., LTD., SHANGHAI KEHUA DYESTUFF INDUSTRY CO., LTD.
    Inventors: Xiaohong Wang, Haobing Chen, Shihua Li, Renliang Wang, Junfeng Zhou, Guixiang Zhang, Huaiqing Gao
  • A REACTIVE NAVY TO BLACK DYE COMPOSITION AND DYE PRODUCT THEREOF
    Publication number: 20200283634
    Abstract: A reactive navy to black dye composition comprises component A and component B, wherein component A is selected from one or more compounds of formula (I), component B is selected from one or more compounds of formula (II); D1 and D2 are each independently a group represented by the following formula (a) or (b) or (c); R1-R?2 are each independently selected from the group consisting of H, linear or branched C1˜C4 alkyl, C1˜C4 alkoxy and sulfo; m, n=0-3, and every R3 is each independently selected from the group consisting of amino, sulfo, ureido, C1˜C4 alkanoylamino, C1˜C4 alkoxy and C1˜C4 alkyl, every R6 is each independently selected from the group consisting of amino, hydroxyl and sulfo; X1-X3 are each independently selected from the group consisting of H, C1˜C4 alkyl, C1˜C4 alkoxy, —SO2Y1, —NHCO(CH2)pSO2Y2 and —CONH(CH2)qSO2Y3, and at least one of D1 and D2 contains a fiber-reactive group, p, q=1-3, and Y1˜Y5 are each independently selected from the group consisting of —CH?CH2, —C2H4OSO3H and —CH2CH2Cl.
    Type: Application
    Filed: July 30, 2018
    Publication date: September 10, 2020
    Inventors: Xiaohong WANG, Haobing CHEN, Shihua LI, Renliang WANG, Junfeng ZHOU, Guixiang ZHANG, Huaiqing GAO