Patents by Inventor Riguo WANG

Riguo WANG 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).

  • Method for industrial production of trans-butadiene-isoprene copolymer rubber and apparatus therefor
    Patent number: 10988561
    Abstract: A method for industrial production of a butadiene-isoprene copolymer rubber having a trans-1,4-structure (TBIR) and an apparatus for implementing the method. The production method includes: pumping a predetermined amount of a butadiene and an isoprene into a polymerization reactor, and performing bulk polymerization in the presence of a catalyst to obtain TBIR; performing extrusion, devolatilization, granulation and drying on the produced TBIR, and then packaging the produced TBIR; and separating unreacted monomers by a recovery and separation device followed by separately refining the unreacted monomers, and then returning the unreacted monomers to a batching device or a storage tank. The production apparatus has a recovery and refining unit, a polymerization unit, a post-treatment unit and a utility unit. By the production apparatus and the production method industrial production of TBIR by bulk polymerization is realized.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: April 27, 2021
    Assignees: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY, SHANDONG HUAJU POLYMER MATERIALS CO., LTD., CHAMBROAD CHEMICAL INDUSTRY RESEARCH INSTITUTE CO., LTD.
    Inventors: Aihua He, Yunsheng Ma, Huafeng Shao, Gang Yao, Chenguang Liu, Bo Luan, Riguo Wang
  • METHOD FOR INDUSTRIAL PRODUCTION OF TRANS-BUTADIENE-ISOPRENE COPOLYMER RUBBER AND APPARATUS THEREFOR
    Publication number: 20180201714
    Abstract: A method for industrial production of a butadiene-isoprene copolymer rubber having a trans-1,4-structure (TBIR) and an apparatus for implementing the method. The production method includes: pumping a predetermined amount of a butadiene and an isoprene into a polymerization reactor, and performing bulk polymerization in the presence of a catalyst to obtain TBIR; performing extrusion, devolatilization, granulation and drying on the produced TBIR, and then packaging the produced TBIR; and separating unreacted monomers by a recovery and separation device followed by separately refining the unreacted monomers, and then returning the unreacted monomers to a batching device or a storage tank. The production apparatus has a recovery and refining unit, a polymerization unit, a post-treatment unit and a utility unit. By the production apparatus and the production method industrial production of TBIR by bulk polymerization is realized.
    Type: Application
    Filed: November 15, 2016
    Publication date: July 19, 2018
    Applicants: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY, SHANDONG HUAJU POLYMER MATERIALS CO., LTD., CHAMBROAD CHEMICAL INDUSTRY RESEARCH INSTITUTE CO., LTD.
    Inventors: Aihua HE, Yunsheng MA, Huafeng SHAO, Gang YAO, Chenguang LIU, Bo LUAN, Riguo WANG