公开(公告)号：EP3323915A4

公开(公告)日：2018-06-20

申请号：EP16824526

申请日：2016-07-14

申请人： MITSUBISHI CHEM CORP

发明人： YAMATANI MANABU ,  KOTANI TOMOYUKI ,  YAMASHITA TOMOYOSHI ,  HAREYAMA KAZUNAO

IPC分类号： D01F9/21 ,  D01F9/22

CPC分类号： D01F9/21 ,  D01F9/22

摘要： A method for producing a carbon material, the method including a step of performing a carbonization treatment by heating an organic polymer material to a temperature higher than 400°C in a non-oxidizing atmosphere containing a gaseous substance (A) composed of at least one of acetylene and an acetylene derivative.

公开(公告)号：EP3327189A4

公开(公告)日：2018-07-18

申请号：EP16830300

申请日：2016-07-12

申请人： MITSUBISHI CHEM CORP

发明人： FUJIE MASAKI ,  YAMASHITA TOMOYOSHI ,  IKEDA HIRONOBU ,  IMAKITA JUNYA

IPC分类号： D01F6/06 ,  D01D5/16 ,  D02J1/22

CPC分类号： D01F6/06 ,  D01D5/16 ,  D02J1/22

摘要： Obtained is a polypropylene fiber that selectively satisfies any of the following requirements: the degree of amorphous orientation being not lower than 85%; the degree of crystalline orientation being not lower than 90%; the degree of crystallinity being 60-75%; the strength being not lower than 7cN/dtex; the initial elastic modulus being not lower than 100 cN/dtex; the rupture elongation being 10-30%; and the single fiber fineness being 3-20 dtex. This polypropylene fiber, in which a crystalline chain and an amorphous chain are highly oriented and that has high strength and high initial elastic modulus, is produced through a two-stage drawing method and by controlling the drawing tension of the final stage while maintaining production speed.