Patents by Inventor Shengxu QIAN

Shengxu QIAN 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: 9909030
    Abstract: A method for preparing carbon nanotubes graphene modified aqueous polyurethane coatings and adhesives, which includes the steps of: (a) preparing carboxylated carbon nanotubes graphene nano-sheets; (b) mixing polytetrahydrofuran ether glycol with isophorone diisocyanate for reaction in the presence of dibutyltin dilaurate; and then adding 2-sulfobenzoic anhydride, carboxylated carbon nanotubes and graphene sheet into the mixture and allowing reaction under 90° C. for 2 hours to obtain a polyurethane prepolymer A; and (c) adding chain extender and acetone into the prepolymer A and allowing reaction under 65° C. to 75° C., adding D-panthenol and 2,4,6-trihydroxy benzoic acid and allowing reaction under 75° C. to 85° C. for 0.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: March 6, 2018
    Assignee: Yantai University
    Inventors: Baorong Duan, Quanjie Wang, Zhihai Tang, Haiyan Ding, Mengmeng Zhang, Lijie Hou, Yanqing Wang, Guilin Liu, Shengxu Qian
  • Publication number: 20170114248
    Abstract: The present invention discloses a method for preparing carbon nanotubes graphene modified aqueous polyurethane coatings and adhesives: under the presence of dibutyltin dilaurate as catalysts, mixing polytetrahydrofuran ether glycol with isophorone diisocyanate, reacting at 60° C. to 80° C., adding 2-sulfobenzoic anhydride, carboxylated carbon nanotubes and graphene sheet into the mixture, reacting at 90° C. for 2 hours, and then polyurethane prepolymer A is obtained; adding chain extender and acetone into prepolymer A, reacting at 65° C. to 75° C., adding D-panthenol and 2,4,6-trihydroxy benzoic acid, reacting at 75° C. to 85° C. for 0.5 to 2 hours, adding triethylamine and benzamide for neutralization, reacting for 30-50 min, adding water for emulsification, and then carbon nanotubes graphene modified aqueous polyurethane coatings and adhesives are obtained. The prepared polyurethane is environment-friendly and low cost, can be wildly used as adhesives on plastic, glass, paper-making and textiles.
    Type: Application
    Filed: April 28, 2016
    Publication date: April 27, 2017
    Inventors: Baorong DUAN, Quanjie WANG, Zhihai TANG, Haiyan DING, Mengmeng ZHANG, Lijie HOU, Yanqing WANG, Guilin LIU, Shengxu QIAN