公开(公告)号：US20170175001A1

公开(公告)日：2017-06-22

申请号：US15300703

申请日：2016-04-22

申请人： YUSUNG TELECOM CO., LTD.

发明人： Sung Ho YOON ,  Seong Hwa HONG ,  Suk Jun YU

IPC分类号： C10C3/02 ,  D01F6/76 ,  C08G61/10 ,  C10C3/00 ,  D01F9/15 ,  D01F9/155

CPC分类号： C10C3/026 ,  C08G61/10 ,  C08G2261/314 ,  C10C3/00 ,  C10C3/002 ,  D01F6/76 ,  D01F9/145 ,  D01F9/15 ,  D01F9/155 ,  H01M4/587 ,  H01M4/625

摘要： Provided are a method of preparing a high softening point pitch and the high softening point pitch prepared thereby, in which a polyene radical intermediate is formed, and an alkylaromatic radial material is linearly linked to the polyene radical intermediate in a benzyl or methylene form to be polymerized. The method includes performing heat treatment by adding a compound, which is able to a polyene radical intermediate, to 1- to 4-ring alkylaromatic condensates to produce a basic pitch, and performing vacuum heat treatment for the basic pitch.

公开(公告)号：US20200332444A1

公开(公告)日：2020-10-22

申请号：US16757042

申请日：2019-08-06

申请人： YUSUNG TELECOM CO., LTD.

发明人： Sung Ho YOON ,  Seong Hwa HONG

IPC分类号： D01F9/21 ,  D01D5/06 ,  D01D10/02

摘要： Provided is a carbon fiber that has an average fiber diameter of 1-100 μm and is a product obtained by spinning a solution of chlorinated polyvinyl chloride to obtain a chlorinated polyvinyl fiber, elongating the chlorinated polyvinyl fiber without an oxidative stabilization process, and then preheating and carbonizing the elongated polyvinyl chloride fiber. Also, provided is a method for preparing a carbon fiber which has excellent mechanical properties and a high degree of orientation without oxidative stabilization.