Patents by Inventor Songli Wei

Songli Wei 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).

  • Publication number: 20210317350
    Abstract: The present invention relates to an adhesive and application thereof, and a bonded product obtained by using the adhesive. The adhesive comprises: a. at least one aqueous polyurethane dispersion; b. at least one surface passivated polyisocyanate; c. at least one polycarbodiimide having a weight-average molecular weight of 500 to 100,000; and d. optionally a carbodiimide having a carbodiimide group functionality of 1. The coating formed by the adhesive provided according to the present invention has good hydrolysis resistance.
    Type: Application
    Filed: August 15, 2019
    Publication date: October 14, 2021
    Inventors: Chen JIN, Yingdan ZHU, Songli WEI, Qinglin SONG, Chenxi ZHANG, Evgeny AVTOMONOV
  • Patent number: 9759976
    Abstract: An electrophoretic display medium and preparing method thereof. The electrophoretic display medium comprises: negatively or positively-charged pigment particles; neutral pigment particles with colors different from the charged pigment particles; and low-polar and/or non-polar dispersing solvent. The method of preparing the electrophoretic display medium comprises: synthesizing neutral pigment particles; synthesizing charged pigment particles; and preparing electrophoretic display medium. The method of synthesizing the neutral pigment particles comprises: mixing together pigment particles, macromonomers, coupling-agents and chain-initiators for polymeric reaction in the solvent, and reacting at a temperature of 30-120° C. for 4-48 hours. The method is applied to many kinds of inorganic oxides, inorganic salts and complex inorganic salt pigments.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: September 12, 2017
    Assignee: GUANGZHOU OED TECHNOLOGIES CO., LTD.
    Inventors: Yu Chen, Lei Zhang, Zuliang Liu, Xi Zeng, Songli Wei
  • Publication number: 20120229885
    Abstract: An electrophoretic display medium and preparing method thereof. The electrophoretic display medium comprises: negatively or positively-charged pigment particles; neutral pigment particles with colors different from the charged pigment particles; and low-polar and/or non-polar dispersing solvent. The method of preparing the electrophoretic display medium comprises: synthesizing neutral pigment particles; synthesizing charged pigment particles; and preparing electrophoretic display medium. The method of synthesizing the neutral pigment particles comprises: mixing together pigment particles, macromonomers, coupling-agents and chain-initiators for polymeric reaction in the solvent, and reacting at a temperature of 30-120° C. for 4-48 hours. The method is applied to many kinds of inorganic oxides, inorganic salts and complex inorganic salt pigments.
    Type: Application
    Filed: December 28, 2009
    Publication date: September 13, 2012
    Applicant: GUANGZHOU OED TECHNOLOGIES CO., LTD.
    Inventors: Yu Chen, Lei Zhang, Zuliang Liu, Xi Zeng, Songli Wei