Patents by Inventor RONGWEN DING

RONGWEN DING 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: 20220251007
    Abstract: The invention relates to a new industrial process for manufacturing of perfluoropen-tane (PFP), and to the manufacture of a novel intermediate compound thereof, as well as to the novel intermediate compound itself and the use thereof in the process for manu-facturing of perfluoropentane (PFP). Accordingly, the invention relates to a process for the manufacture of the compound PFP (perfluoropentane), and/or of the compound perfluorinated 4-methylbutyrolactone, i.e., the precursor or intermediate compound of PFP (perfluoropentane), characterized in that the process comprises direct fluorination reaction with F2 gas as the fluorination agent, and/or from the fluorination reaction with SF4 as the fluorination agent.
    Type: Application
    Filed: December 30, 2021
    Publication date: August 11, 2022
    Applicant: Fujian Yongjing Technology Co.,Ltd
    Inventors: WEIFEN LUO, RONGWEN DING
  • Publication number: 20220177398
    Abstract: The invention relates to a new industrial process for manufacturing of perfluoro(methylvinylether) (PFMVE), and of 2-fluoro-1,2-dichloro-trifluoro-methoxyethylene (FCTFE), involving reactions in liquid phase and performing reactions in a microreactor. The invention also relates to a new industrial process for manufacturing of perfluoro(methyl vinyl ether) (PFMVE) by fluorination, i.e., perfluorination, of 2-fluoro-1,2-dichloro-trifluoromethoxy-ethylene (FCTFE) with HF (hydrogen fluoride) in the presence of a Lewis acid catalyst, again performing the reaction in liquid phase, and preferably in a microreactor.
    Type: Application
    Filed: December 30, 2021
    Publication date: June 9, 2022
    Applicant: Fujian Yongjing Technology Co.,Ltd
    Inventors: WEIFEN LUO, LVZHOU QIU, RONGWEN DING