公开(公告)号：US20160326672A1

公开(公告)日：2016-11-10

申请号：US15110336

申请日：2014-12-26

Applicant: THE UNIVERSITY OF TOKYO

Inventor： Tetsunori Higuchi ,  Mami Sakaguchi

IPC: D01F9/22 ,  D01D5/06

CPC classification number: D01F9/225 ,  D01D5/06 ,  D01D5/34 ,  D01F8/08 ,  D01F9/22

Abstract: A polyacrylonitrile (PAN)-based carbon fiber includes three or more phases different in crystal size.

Abstract translation: 基于聚丙烯腈（PAN）的碳纤维包括晶体尺寸不同的三个或更多个相。

公开(公告)号：US09765448B2

公开(公告)日：2017-09-19

申请号：US14904455

申请日：2014-07-11

Applicant: The University of Tokyo

Inventor： Tetsunori Higuchi ,  Mami Sakaguchi

IPC: D01F6/18 ,  D01D5/06 ,  D01F9/22 ,  C08F120/44 ,  C08L33/20 ,  C08F2/18 ,  C08F2/44 ,  D01F1/07 ,  C08F8/32 ,  C08F8/06 ,  C08F8/48

CPC classification number: D01F6/18 ,  C08F2/18 ,  C08F2/44 ,  C08F8/06 ,  C08F8/32 ,  C08F8/48 ,  C08F20/44 ,  C08F120/44 ,  C08L33/20 ,  C08L2201/02 ,  C08L2201/56 ,  C08L2203/12 ,  D01D5/06 ,  D01F1/07 ,  D01F9/22

Abstract: A flame resistant polymer is obtained by reacting polyacrylonitrile with amine and nitro compounds, the polyacrylonitrile being polymerized by aqueous suspension polymerization using a redox initiator and containing an S component at an amount of 3,000 μg/g or less. A PAN-based polymer in which both yarn producing properties and flame resistance are improved can be realized.