公开(公告)号：US10189985B2

公开(公告)日：2019-01-29

申请号：US15923368

申请日：2018-03-16

Applicant: CYTEC INDUSTRIES INC.

Inventor： Longgui Tang ,  Alan D. Thomas ,  Billy D. Harmon

IPC: C08F2/06 ,  C08L33/20 ,  B29C47/00 ,  C08F120/44 ,  C08F2/38 ,  C08F220/44 ,  C08F6/00 ,  D01F9/22 ,  B29D99/00 ,  B29K55/00 ,  B29L31/00 ,  D01D5/06

Abstract: A method for synthesizing polyacrylonitrile (PAN) polymer with a narrow molecular weight distribution is disclosed. The preferred PAN polymer has a PDI (Mw/Mn) of about 2 or less. Such PAN polymer is synthesized by controlled/living radical polymerization using a special RAFT (Reversible Addition-Fragmentation Chain Transfer) agent. Also disclosed is a method for producing carbon fibers from PAN polymer with low PDI.

公开(公告)号：US20180207849A1

公开(公告)日：2018-07-26

申请号：US15923368

申请日：2018-03-16

Applicant: CYTEC INDUSTRIES INC.

Inventor： Longgui Tang ,  Alan D. Thomas ,  Billy D. Harmon

IPC: B29C47/00 ,  D01F9/22 ,  C08F6/00 ,  C08F2/06 ,  C08F2/38 ,  C08L33/20 ,  C08F120/44 ,  C08F220/44 ,  B29L31/00 ,  B29D99/00 ,  B29K55/00 ,  D01D5/06

CPC classification number: B29C47/0004 ,  B29D99/0078 ,  B29K2055/00 ,  B29L2031/731 ,  C08F2/06 ,  C08F2/38 ,  C08F6/003 ,  C08F120/44 ,  C08F220/44 ,  C08F2438/03 ,  C08L33/20 ,  D01D5/06 ,  D01F9/22

Abstract: A method for synthesizing polyacrylonitrile (PAN) polymer with a narrow molecular weight distribution is disclosed. The preferred PAN polymer has a PDI (Mw/Mn) of about 2 or less. Such PAN polymer is synthesized by controlled/living radical polymerization using a special RAFT (Reversible Addition-Fragmentation Chain Transfer) agent. Also disclosed is a method for producing carbon fibers from PAN polymer with low PDI.

公开(公告)号：US10647844B2

公开(公告)日：2020-05-12

申请号：US16257908

申请日：2019-01-25

Applicant: Cytec Industries Inc.

Inventor： Longgui Tang ,  Alan D. Thomas ,  Billy D. Harmon

IPC: C08L33/20 ,  C08F120/44 ,  B29C48/00 ,  C08F2/06 ,  C08F2/38 ,  C08F220/44 ,  C08F6/00 ,  B29C71/02 ,  D01F9/22 ,  B29D99/00 ,  B29K55/00 ,  B29L31/00 ,  D01D5/06 ,  B82Y40/00

Abstract: A method for synthesizing polyacrylonitrile (PAN) polymer with a narrow molecular weight distribution is disclosed. The preferred PAN polymer has a PDI (Mw/Mn) of about 2 or less. Such PAN polymer is synthesized by controlled/living radical polymerization using a special RAFT (Reversible Addition-Fragmentation Chain Transfer) agent. Also disclosed is a method for producing carbon fibers from PAN polymer with low PDI.

公开(公告)号：US09957645B2

公开(公告)日：2018-05-01

申请号：US14549764

申请日：2014-11-21

Applicant: Cytec Industries Inc.

Inventor： Longgui Tang ,  Alan D. Thomas ,  Billy D. Harmon

IPC: D01F9/22 ,  B29C47/00 ,  C08F120/44 ,  C08F2/06 ,  C08F2/38 ,  C08F220/44 ,  C08F6/00 ,  C08L33/20 ,  B29D99/00 ,  B29K55/00 ,  B29L31/00 ,  D01D5/06

CPC classification number: B29C47/0004 ,  B29D99/0078 ,  B29K2055/00 ,  B29L2031/731 ,  C08F2/06 ,  C08F2/38 ,  C08F6/003 ,  C08F120/44 ,  C08F220/44 ,  C08F2438/03 ,  C08L33/20 ,  D01D5/06 ,  D01F9/22

Abstract: A method for synthesizing polyacrylonitrile (PAN) polymer with a narrow molecular weight distribution is disclosed. The preferred PAN polymer has a PDI (Mw/Mn) of about 2 or less. Such PAN polymer is synthesized by controlled/living radical polymerization using a special RAFT (Reversible Addition-Fragmentation Chain Transfer) agent. Also disclosed is a method for producing carbon fibers from PAN polymer with low PDI.

公开(公告)号：US20150174807A1

公开(公告)日：2015-06-25

申请号：US14549764

申请日：2014-11-21

Applicant: Cytec Industries Inc.

Inventor： Longgui Tang ,  Alan D. Thomas ,  Billy D. Harmon

IPC: B29C47/00 ,  C08F120/44

CPC classification number: B29C47/0004 ,  B29D99/0078 ,  B29K2055/00 ,  B29L2031/731 ,  C08F2/06 ,  C08F2/38 ,  C08F6/003 ,  C08F120/44 ,  C08F220/44 ,  C08F2438/03 ,  C08L33/20 ,  D01D5/06 ,  D01F9/22

Abstract: A method for synthesizing polyacrylonitrile (PAN) polymer with a narrow molecular weight distribution is disclosed. The preferred PAN polymer has a PDI (Mw/Mn) of about 2 or less. Such PAN polymer is synthesized by controlled/living radical polymerization using a special RAFT (Reversible Addition-Fragmentation Chain Transfer) agent. Also disclosed is a method for producing carbon fibers from PAN polymer with low PDI.

Abstract translation: 公开了一种合成具有窄分子量分布的聚丙烯腈（PAN）聚合物的方法。 优选的PAN聚合物具有约2或更小的PDI（Mw / Mn）。 这种PAN聚合物通过使用特殊的RAFT（可逆加成 - 分段链转移）试剂的控制/活性自由基聚合合成。 还公开了由具有低PDI的PAN聚合物生产碳纤维的方法。