公开(公告)号：US20220372221A1

公开(公告)日：2022-11-24

申请号：US17781895

申请日：2020-11-27

申请人： HANWHA SOLUTIONS CORPORATION

发明人： Hye Yeon LEE ,  Jinseo LEE ,  Kyungho KWON ,  Seung Hoe DO ,  Dokyoung KIM

IPC分类号： C08G69/18 ,  C08G69/20

摘要： The present invention relates to a process for preparing a polyamide by anionic polymerization and to a polyamide prepared thereby. A polyamide having an ultra-high molecular weight can be easily prepared by the process for preparing a polyamide according to an embodiment of the present invention. In addition, the polyamide having an ultra-high molecular weight according to an embodiment of the present invention has excellent mechanical properties, particularly, impact resistance. Accordingly, the polyamide having an ultra-high molecular weight according to an embodiment of the present invention may be advantageously used as a material for parts selected from the group consisting of materials for automobiles, materials for electronic devices, materials for industrial pipes, materials for architectural and civil engineering, materials for 3D printers, textile materials, cloth materials, materials for machine tools, medical materials, aviation materials, solar materials, battery materials, materials for sports, materials for home appliances, materials for home use, and materials for cosmetics.

公开(公告)号：US20210002424A1

公开(公告)日：2021-01-07

申请号：US16767433

申请日：2018-10-29

申请人： HANWHA SOLUTIONS CORPORATION

发明人： Do Kyoung KIM ,  Jin Seo LEE ,  Kyung Ho KWON ,  Seung Hoe DO ,  Hye Yeon LEE ,  Kyoung Won YIM ,  Dae Hak KIM

IPC分类号： C08G69/20 ,  C08G83/00 ,  C08K5/3412

摘要： Provided are a method for preparing a polyamide by using a molecular weight controller having a double active group in anionic ring-opening copolymerization of a polyamide, thereby enabling molecular weight to be controlled through the addition reaction of the molecular weight controller, and a polyamide prepared thereby.