公开(公告)号：US11898276B2

公开(公告)日：2024-02-13

申请号：US17827565

申请日：2022-05-27

申请人： FORMOSA PLASTICS CORPORATION

发明人： Kun-Yeh Tsai ,  Chia-Chi Hung ,  Wen-Ju Chou ,  Ching-Wen Chen ,  Chia-Chun Hsieh ,  Shi-Jie Lin ,  Long-Tyan Hwang

IPC分类号： D01D5/12 ,  D01D5/14 ,  D01D10/02 ,  D02J1/22 ,  D02J13/00 ,  D06B1/00 ,  D06B3/04 ,  D06M15/643 ,  D06M15/70 ,  D01F9/22 ,  D01D5/06 ,  D06M101/28

CPC分类号： D01F9/22 ,  D01D5/06 ,  D02J1/223 ,  D02J1/228 ,  D02J13/005 ,  D06M15/6436 ,  D06M2101/28 ,  D06M2200/40 ,  D10B2101/12

摘要： Carbon fiber and method of forming the same are provided. The method modifies proportion of a finishing oil to control a relation between a surface tension and a particle size of the finishing oil, and thus penetration of the finishing oil into an interior of the carbon fiber is avoided. Therefore, the carbon fiber can have both low oil residues and a high strength.

公开(公告)号：US12006595B2

公开(公告)日：2024-06-11

申请号：US17895949

申请日：2022-08-25

申请人： FORMOSA PLASTICS CORPORATION

发明人： Long-Tyan Hwang ,  Chia-Chi Hung ,  Kun-Yeh Tsai ,  Ching-Wen Chen ,  Wen-Ju Chou

IPC分类号： C08F2/06 ,  C08F4/04 ,  C08F4/34 ,  C08F220/44 ,  C08F220/46 ,  C08F220/48 ,  C08L33/20 ,  D01D1/02 ,  D01D5/06 ,  D01D5/12 ,  D01D10/02 ,  D01D10/06 ,  D01F1/02 ,  D01F1/10 ,  D01F6/36 ,  D01F6/38 ,  D01F9/22 ,  C08K3/08 ,  D06M101/28

CPC分类号： D01F9/22 ,  C08F220/48 ,  D01F6/36 ,  D01F9/225 ,  C08F2800/20 ,  C08K2003/085 ,  C08K2003/0856 ,  D06M2101/28

摘要： The present invention relates to a method for producing a carbon fiber. In the method for producing the carbon fiber, a high pure acrylonitrile monomer with specific contents of impurities and a comonomer are used to produce an acrylonitrile copolymer, and the acrylonitrile copolymer is subjected to a spinning operation, a stretching operation, an oxidation treatment and a carbonization treatment in sequence, for obtaining the carbon fiber. The acrylonitrile copolymer with an appropriate falling-ball viscosity and an appropriate weight-average molecular weight is beneficial to the spinning operation, thereby reducing an inner pore diameter and enhancing strength of the resulted carbon fiber.