公开(公告)号：EP1219982A1

公开(公告)日：2002-07-03

申请号：EP00957000.3

申请日：2000-09-07

申请人： Mitsubishi Rayon Co., Ltd.

发明人： FUKUBA, Yoshinori; Mitsubishi Rayon Co., Ltd. ,  AKITA, Takashi; Mitsubishi Rayon Co., Ltd. ,  IRIE, Kikue; Mitsubishi Rayon Co., Ltd. ,  SUMI, Toshinori; Mitsubishi Rayon Co., Ltd. ,  OKAMOTO, Masashi Mitsubishi Rayon Co., Ltd. ,  OKUMURA, Jun Mitsubishi Rayon Co., Ltd. ,  SASAKI, Shigeaki Mitsubishi Rayon Co., Ltd.

IPC分类号： G02B6/00

CPC分类号： G02B6/105 ,  B29C55/045 ,  B29D11/00721 ,  G02B6/02033 ,  G02B6/02038

摘要： The present invention relates to a production method of a plastic optical fiber which comprises the steps of heat drawing an undrawn plastic optical fiber obtained by melt spinning and annealing the drawn fiber at a circumferential velocity ratio between the front and rear rollers (circumferential velocity of a rear roller / circumferential velocity of a front roller) of 0.5 to 1.2 under heating conditions which satisfy 4 ≦ y ≦ -1.5x + 330 and (Tgc - 5)°C ≦ x ≦ (Tgc + 110)°C [Tgc: a glass transition temperature of a core, x: an annealing temperature (°C), and y: an annealing time (seconds)]. According to the present invention, a plastic optical fiber having a small thermal shrinkage ratio and excellent heat resistance can be provided.

摘要翻译： 塑料光纤的制造方法技术领域本发明涉及一种塑料光纤的制造方法，其特征在于，包括以下步骤：通过熔融纺丝而获得的未拉伸塑料光纤，以及前辊和后辊之间的圆周速度比，使拉伸纤维退火 后辊/前辊的圆周速度）在满足4≤y≤-1.5x + 330和（Tgc-5）℃的加热条件下为0.5至1.2，（Tgc-5）℃

公开(公告)号：EP1219982B1

公开(公告)日：2009-06-17

申请号：EP00957000.3

申请日：2000-09-07

申请人： MITSUBISHI RAYON CO., LTD.

发明人： FUKUBA, Yoshinori; Mitsubishi Rayon Co., Ltd. ,  AKITA, Takashi; Mitsubishi Rayon Co., Ltd. ,  IRIE, Kikue; Mitsubishi Rayon Co., Ltd. ,  SUMI, Toshinori; Mitsubishi Rayon Co., Ltd. ,  OKAMOTO, Masashi Mitsubishi Rayon Co., Ltd. ,  OKUMURA, Jun Mitsubishi Rayon Co., Ltd. ,  SASAKI, Shigeaki Mitsubishi Rayon Co., Ltd.

IPC分类号： G02B6/02

CPC分类号： G02B6/105 ,  B29C55/045 ,  B29D11/00721 ,  G02B6/02033 ,  G02B6/02038

摘要： A production method for plastic optical fibers, characterized by comprising the steps of heating/stretching non-stretched plastic optical fibers obtained by melt spinning, and then heat-treating the stretched fibers at a peripheral velocity ratio between front and rear rollers of at least 0.5 and up to 1.2 and under heating conditions satisfying the relations, 4≤y≤-1.5x + 330, (Tgc - 5) DEG C≤x≤(Tgc + 110) DEG C,[Tgc: glass transition temperature of core material, x: heat treating temperature( DEG C), y: heat treating time (sec)], whereby plastic optical fibers small in heat shrinkage and excellent in heat resistance are provided.