Patents Assigned to Kureha Kagaku Kogho K.K.
  • Poly (arylene thioether) block copolymer fibers and production process thereof
    Patent number: 4960555
    Abstract: Disclosed herein are poly(arylene thioether) block copolymer fibers formed by melt-spinning a thermoplastic material composed of (A) 100 parts by weight of a particular poly(arylene thioether) block copolymer, (B) up to 50 parts by weight of at least one other thermoplastic resin and (C) up to 10 parts by weight of at least one filler.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: October 2, 1990
    Assignee: Kureha Kagaku Kogho K.K.
    Inventors: Yoshikatsu Satake, Shinji Yamamoto, Takashi Kaneko, Masahito Tada, Ken Kashiwadate, Toshiya Mizuno, Hiroyuki Endo, Takayuki Katto, Zenya Shiiki