Patents by Inventor Si Jun Zhu

Si Jun Zhu 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).

  • ALKOXYLATED-POLYETHYLENIMINE AND COMPOSITION CONTAINING THE SAME
    Publication number: 20220154392
    Abstract: The present invention relates to an alkoxylated polyethylenimine, for use in textile treatment in textile industry, especially in textile finishing processes.
    Type: Application
    Filed: February 1, 2022
    Publication date: May 19, 2022
    Inventors: Laszlo Szarvas, Si Jun Zhu, Yi Lin, R.K. Prasad Nadella
  • COLORANT CATCHER MATERIAL
    Publication number: 20200181832
    Abstract: A colorant catcher material includes a) a substrate and b) a colorant-catching additive. The colorant-catching additive is selected from the group consisting of polyvinylamines in form of homopolymers, copolymers and/or partial salts thereof, polyethylenimines in form of homopolymers, copolymers and/or partial salts thereof, and mixture thereof. The colorant-catching additive is fixed on the substrate by c) a fixing agent selected from the group consisting of dialdehydes with the carbon number of from 2 to 8. Also disclosed is a method for preparing the colorant catcher material and use of the same for catching colorants or removing dirt in an aqueous medium, particularly a laundry washing solution.
    Type: Application
    Filed: November 2, 2017
    Publication date: June 11, 2020
    Inventors: Si Jun ZHU, Laszlo SZARVAS, Yuan Zhuo LING, Qing SHI
  • Alkoxylated polyethyleneimine hydrophilically-modified fibers
    Patent number: 10612188
    Abstract: The invention relates to an alkoxylated polyethyleneimine hydrophilically-modified fiber, wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 600 to 25,000 and contains 1 to 40 alkylene oxide units per nitrogen atom. The invention also relates to a method of improving hydrophilicity of fiber comprising impregnating the fiber with an aqueous solution containing an alkoxylated polyethyleneimine, wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 600 to 25,000 and contains 1 to 40 alkylene oxide units per nitrogen atom. The invention also relates to use of the alkoxylated polyethyleneimine in improving hydrophilicity of fiber.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: April 7, 2020
    Assignee: BASF SE
    Inventors: Qin Qin Hu, Laszlo Szarvas, Si Jun Zhu
  • ALKOXYLATED-POLYETHYLENIMINE AND COMPOSITION CONTAINING THE SAME
    Publication number: 20190352843
    Abstract: The present invention relates to an alkoxylated polyethylenimine, for use in textile treatment in textile industry, especially in textile finishing processes.
    Type: Application
    Filed: February 9, 2018
    Publication date: November 21, 2019
    Inventors: Laszlo Szarvas, Si Jun Zhu, Yi Lin, R.K. Prasad Nadella
  • Alkoxylated Polyethyleneimine Hydrophilically-Modified Fibers
    Publication number: 20180016742
    Abstract: The invention relates to an alkoxylated polyethyleneimine hydrophilically-modified fiber, wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 600 to 25,000 and contains 1 to 40 alkylene oxide units per nitrogen atom. The invention also relates to a method of improving hydrophilicity of fiber comprising impregnating the fiber with an aqueous solution containing an alkoxylated polyethyleneimine, wherein the alkoxylated polyethyleneimine has a weight average molecular weight of 600 to 25,000 and contains 1 to 40 alkylene oxide units per nitrogen atom. The invention also relates to use of the alkoxylated polyethyleneimine in improving hydrophilicity of fiber.
    Type: Application
    Filed: February 5, 2016
    Publication date: January 18, 2018
    Inventors: Qin Qin Hu, Laszlo Szarvas, Si Jun Zhu