Patents by Inventor Longhui ZHU

Longhui 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).

  • Patent number: 12054633
    Abstract: A preparation method for a salt-spray-resistant polyaspartic acid ester includes mixing polyaspartic acid ester, cardanol resin and a catalyst together for transesterification reaction, and controlling a temperature at 100-130° C. and a relative vacuum degree at ?0.095 MPa-?0.1 MPa, and stirring for reaction for 2-5 h to obtain the salt-spray-resistant polyaspartic acid ester; in particular, a molar ratio of the polyaspartic acid ester to the cardanol resin to the catalyst is polyaspartic acid ester:the cardanol resin:the catalyst=1:0.1-0.3:0.001-0.003, and the catalyst is tetraisopropyl titanate or dibutyltin oxide.
    Type: Grant
    Filed: December 27, 2023
    Date of Patent: August 6, 2024
    Assignee: SHENZHEN FEIYANG PROTECH CORP., LTD
    Inventors: Wenzhang Lv, Shankai Luo, Poli Zhao, Shuisheng Cai, Xiaoyong Qiu, Longhui Zhu, Feiyun He
  • Patent number: 11996211
    Abstract: A polyurea-based solid electrolyte, raw material components of which includes a first polyaspartic ester, a lithium salt, and an isocyanate curing agent; the ester group of the first polyaspartic ester includes a polyethylene glycol segment structure.
    Type: Grant
    Filed: December 29, 2023
    Date of Patent: May 28, 2024
    Assignee: SHENZHEN FEIYANG PROTECH CORP., LTD
    Inventors: Wenzhang Lv, Linna Che, En Su, Longhui Zhu, Shankai Luo, Jiang Wu
  • Publication number: 20240141201
    Abstract: A preparation method for a salt-spray-resistant polyaspartic acid ester includes mixing polyaspartic acid ester, cardanol resin and a catalyst together for transesterification reaction, and controlling a temperature at 100-130° C. and a relative vacuum degree at ?0.095 MPa-?0.1 MPa, and stirring for reaction for 2-5 h to obtain the salt-spray-resistant polyaspartic acid ester; in particular, a molar ratio of the polyaspartic acid ester to the cardanol resin to the catalyst is polyaspartic acid ester:the cardanol resin:the catalyst=1:0.1-0.3:0.001-0.003, and the catalyst is tetraisopropyl titanate or dibutyltin oxide.
    Type: Application
    Filed: December 27, 2023
    Publication date: May 2, 2024
    Inventors: Wenzhang LV, Shankai LUO, Poli ZHAO, Shuisheng CAI, Xiaoyong QIU, Longhui ZHU, Feiyun HE
  • Publication number: 20230279259
    Abstract: The present application relates to a field of anti-corrosion coating, in particular, relates to an aspartic polyurea coating including a polyaspartic acid ester: 36%-60%; a ketoimine: 4%-8%; a dispersant: 0.5%-1.0%; an organotin catalyst: 0.1%-0.2%; a titanium white powder: 0%-48%; a thixotropic agent: 0.2%-1.0%; a leveling agent: 0.05%-0.3%; an antifoamer: 0.1%-1.0%; an antiager: 0%-3.0%; a coupling agent: 0%-5%; a diluent: 0%-10% and component B isocyanate curing agent.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 7, 2023
    Inventors: Longhui ZHU, Jun XUE, Xiaoyong QIU, Wenzhang LV, Feiyun HE, Poli ZHAO, Haixin HUANG