Patents by Inventor Shen DIAO

Shen DIAO 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).

  • Low dielectric constant polymer containing dinaphthyl and hexafluorocyclobutyl ether unit, preparation method and use
    Patent number: 9518151
    Abstract: The present invention belongs to the field of preparation of high performance polymers, and specifically relates to a low dielectric constant polymer containing dinaphthyl and hexafluorocyclobutyl ether units, and preparation method and use thereof. The polymer is prepared as follows: under the effect of an alkali, 1-naphthol bromotetrafluoroethane ether is prepared from 1-naphthol and tetrafluorodibromoethane in an organic solvent, and then reduced by a zinc powder so as to obtain 1-naphthol trifluorovinyl ether. 1-naphthol trifluorovinyl ether is treated at a high temperature to obtain a bisnaphthol hexafluorocyclobutyl ether monomer. The monomer is subjected to oxidative coupling in the presence of ferric trichloride so as to obtain a thermal polymer containing dinaphthyl and hexafluorocyclobutyl structural units with a good film-forming property, and in a nitrogen atmosphere, the temperature for 5% weight loss (Td5%) of the obtained film is 437° C., and the carbon residue yield at 1000° C. is 54.24%.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: December 13, 2016
    Assignee: Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
    Inventors: Qiang Fang, Chao Yuan, Kaikai Jin, Yingchun Liu, Shen Diao, Kai Li
  • LOW DIELECTRIC CONSTANT POLYMER CONTAINING DINAPHTHYL AND HEXAFLUOROCYCLOBUTYL ETHER UNIT, PREPARATION METHOD AND USE
    Publication number: 20160060394
    Abstract: The present invention belongs to the field of preparation of high performance polymers, and specifically relates to a low dielectric constant polymer containing dinaphthyl and hexafluorocyclobutyl ether units, and preparation method and use thereof. The polymer is prepared as follows: under the effect of an alkali, 1-naphthol bromotetrafluoroethane ether is prepared from 1-naphthol and tetrafluorodibromoethane in an organic solvent, and then reduced by a zinc powder so as to obtain 1-naphthol trifluorovinyl ether. 1-naphthol trifluorovinyl ether is treated at a high temperature to obtain a bisnaphthol hexafluorocyclobutyl ether monomer. The monomer is subjected to oxidative coupling in the presence of ferric trichloride so as to obtain a thermal polymer containing dinaphthyl and hexafluorocyclobutyl structural units with a good film-forming property, and in a nitrogen atmosphere, the temperature for 5% weight loss (Td5%) of the obtained film is 437° C., and the carbon residue yield at 1000° C. is 54.24%.
    Type: Application
    Filed: November 20, 2013
    Publication date: March 3, 2016
    Inventors: Qiang FANG, Chao YUAN, Kaikai JIN, Yinchun LIU, Shen DIAO, Kai LI