Patents by Inventor Renliang Wang

Renliang Wang 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).

  • Patent number: 11370921
    Abstract: A reactive dye compound and preparation method and application for printing and dyeing of cellulosic fibers, polyamide fibers and fabrics thereof. Formula (I) is the dye compound structure where D1 and D2 are each independently the group of the following formula (a) or (b) or (c), and D1 and D2 are not simultaneously selected from the following formula (a). R1, R2, R4, R5, R7 and R8 are each independently H, linear or branched C1˜C4 alkyl, C1˜C4 alkoxy or sulfo; m=0-3. Each R3 is independently selected from amino, sulfo, ureido, C1˜C4 alkyl, C1˜C4 alkanoylamino or C1˜C4 alkoxy, n=0-3, and each R6 is independently selected from hydroxyl, amino and sulfo. X1, X2 and X3 are each independently H, C1˜C4 alkyl, C1˜C4 alkoxy, —SO2Y1, —NHCO(CH2)pSO2Y2 or —CONH(CH2)qSO2Y3, and at least one of D1 and D2 contains a fiber-reactive group. Y1˜Y3 are each independently —CH?CH2, —C2H4OSO3H or —CH2CH2Cl, p=1-3, and q=1-3.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: June 28, 2022
    Assignee: Shanghai Kehua Dyestuff Industry Co., Ltd.
    Inventors: Huaiqing Gao, Yaoyao He, Zhuan Wang, Renliang Wang, Yuanzhi Guo, Haibin Zhang, Weizhang Chen
  • 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
  • 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
  • Publication number: 20200231819
    Abstract: A reactive dye compound and preparation method and application for printing and dyeing of cellulosic fibers, polyamide fibers and fabrics thereof. Formula (I) is the dye compound structure where D1 and D2 are each independently the group of the following formula (a) or (b) or (c), and D1 and D2 are not simultaneously selected from the following formula (a). R1, R2, R4, R5, R7 and R8 are each independently H, linear or branched C1˜C4 alkyl, C1˜C4 alkoxy or sulfo; m=0-3. Each R3 is independently selected from amino, sulfo, ureido, C1˜C4 alkyl, C1˜C4 alkanoylamino or C1˜C4 alkoxy, n=0-3, and each R6 is independently selected from hydroxyl, amino and sulfo. X1, X2 and X3 are each independently H, C1˜C4 alkyl, C1˜C4 alkoxy, —SO2Y1, —NHCO(CH2)pSO2Y2 or —CONH(CH2)qSO2Y3, and at least one of D1 and D2 contains a fiber-reactive group. Y1˜Y3 are each independently —CH?CH2, —C2H4OSO3H or —CH2CH2Cl, p=1-3, and q=1-3.
    Type: Application
    Filed: July 30, 2018
    Publication date: July 23, 2020
    Inventors: HUAIQING GAO, Yaoyao HE, Zhuan WANG, Renliang WANG, Yuanzhi GUO, Haibin ZHANG, Weizhang CHEN
  • Publication number: 20150232668
    Abstract: Provided in the present invention is a reactive yellow dye compound having a hydrazone structure, the structure of said compound being shown in formula (I). The reactive dye compound of the present invention can be applied during printing and dyeing to fibrous materials such as cellulose fibers and polyamide fibers, has outstanding sweat resistance and light resistance, exhibits a high rate of dye uptake and color fixation, has excellent build-up properties, promotes even dyeing and dye-color stability and is bright and rich in color.
    Type: Application
    Filed: October 18, 2013
    Publication date: August 20, 2015
    Inventors: Xiaohong Wang, Qi Ou, Renliang Wang, Jianjun Lv