Patents Assigned to SEON CORPORATION
  • Conjugated diene copolymer and method for manufacturing conjugated diene copolymer
    Patent number: 12139572
    Abstract: A conjugated diene copolymer has a covalent bond reversibly dissociated and added by heat, and has at least two peaks in each of curves of molecular weight distributions measured at 40° C. and 60° C. by gel permeation chromatography, wherein a change rate of the proportion of the area of the peak having the lowest molecular weight in measurement at 60° C. to the proportion of the area of the peak having the lowest molecular weight in measurement at 40° C.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: November 12, 2024
    Assignees: ZS ELASTOMERS CO., LTD., SUMITOMO CHEMICAL COMPANY, LIMITED, SEON CORPORATION
    Inventors: Hiroshi Aoshima, Jesus Rodriguez Castanon, Hisakatsu Hama