Patents by Inventor Da Shi

Da Shi 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).

  • POLYURETHANE UREA AND ITS PREPARATION METHOD
    Publication number: 20260242529
    Abstract: A polyurethane urea synthesized in a preparation method shows a low modulus, high elongation and good heat-resistance. The polyurethane urea is prepared by a) reacting modified PolyTHF and diisocyanate to obtain a prepolymer, b) adding chain extender and optionally chain terminator into said prepolymer to obtain a polyurethane urea solution, and c) spinning or casting the solution obtained in b) to obtain the polyurethane urea.
    Type: Application
    Filed: March 2, 2023
    Publication date: August 20, 2026
    Applicant: BASF SE
    Inventors: Xiu Juan Zhang, Da Shi, Ming Qian Zhou, Dian Bo Jiang
  • COMPOSITIONS OF DISPERSED SYSTEMS FOR BIOMEDICAL APPLICATIONS, PROCESS FOR THEIR PREPARATION AND USES THEREOF
    Publication number: 20250375539
    Abstract: The invention relates to the use of oligo(ethylene oxide) dendritic molecules for stabilizing fluorocarbon-based nanoemulsions, to fluorocarbon-based nanoemulsions comprising such dendritic molecules and to their uses for biomedical applications, in particular as contrast agents, drug carrier or oxygenating agent.
    Type: Application
    Filed: April 13, 2023
    Publication date: December 11, 2025
    Inventors: Delphine FELDER-FLESCH, Benjamin AYELA, Marie Pierre KRAFFT, Da SHI, Hagop ABADIAN, Salima EL-YAHKLIFI
  • POLYURETHANE UREA FIBER OR FILM AND PREPARATION METHOD THEREOF
    Publication number: 20240336720
    Abstract: A polyurethane urea fiber or film is made having high elongation, low modulus, low hysteresis loss, and excellent clastic recovery. The clastic polyurethane clastic fiber or film is formed from a copolymer glycol, a diisocyanate, a chain extender and optionally a chain terminator. The hard segment content of the polyurethane fibers is in the range of 8.0-13.0% by weight.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 10, 2024
    Applicant: BASF SE
    Inventors: Xiu Juan Zhang, Dieter Rodewald, Da Shi, Ming Qian Zhou, Dian Bo Jiang