公开(公告)号：US11702497B2

公开(公告)日：2023-07-18

申请号：US17251578

申请日：2019-12-20

申请人： LG Chem, Ltd.

发明人： Soo Yong Lee ,  Dong Gil Lee ,  Won Mun Choi ,  Seung Ho Choi

IPC分类号： C08F236/06 ,  C08F136/06 ,  C08C19/28

CPC分类号： C08F236/06

摘要： A modified conjugated diene-based polymer represented by Formula 1, wherein a terminal of a polymer chain is modified, and a method for preparing same are provided. By including a modifier derived unit having a specific structure, a beta value affecting cold flow may be reduced through controlling the degree of branch, and accordingly, the cold flow of a polymer may be efficiently controlled and a mooney viscosity increasing ratio may be improved.

公开(公告)号：US12116429B2

公开(公告)日：2024-10-15

申请号：US17604100

申请日：2020-10-29

申请人： LG Chem, Ltd.

发明人： Kyung Woo Kim ,  Soo Yong Lee ,  Seung Ho Choi ,  Dong Gil Lee ,  Tae Hee Lee

IPC分类号： C08F136/06 ,  C08C19/22 ,  C08C19/25 ,  C08F4/54 ,  C08F236/06 ,  C08K5/5419

CPC分类号： C08F136/06 ,  C08C19/22 ,  C08C19/25 ,  C08F4/545 ,  C08F236/06 ,  C08K5/5419

摘要： A modifier useful for modifying a polymer providing a functional group having affinity with a filler, particularly, a silica-based filler is provided. A modified conjugated diene-based polymer including a functional group derived from the modifier having excellent affinity with a filler and improved compounding properties, and a method for preparing the same are also provided.

公开(公告)号：US20220127405A1

公开(公告)日：2022-04-28

申请号：US17285738

申请日：2020-07-13

申请人： LG Chem, Ltd.

发明人： Dong Gil Lee ,  Soo Yong Lee ,  Seung Ho Choi ,  Won Mun Choi

IPC分类号： C08F297/02 ,  C08K3/04

摘要： The present invention relates to a modified conjugated diene-based polymer having controlled degree of branching, excellent affinity with a filler, and excellent processability properties and compounding properties, a method for preparing the same, and a rubber composition including the same. The modified conjugated diene-based polymer is prepared using a modifier represented by Formula 1 to include a functional group derived from the modifier in at least one terminal of the polymer chain: 1—wherein R1 to R3 and n are described herein.

公开(公告)号：US20220204664A1

公开(公告)日：2022-06-30

申请号：US17604100

申请日：2020-10-29

申请人： LG Chem, Ltd.

发明人： Kyung Woo Kim ,  Soo Yong Lee ,  Seung Ho Choi ,  Dong Gil Lee ,  Tae Hee Lee

IPC分类号： C08F136/06 ,  C08K5/5419 ,  C08F236/06 ,  C08F4/54

摘要： A modifier useful for modifying a polymer providing a functional group having affinity with a filler, particularly, a silica-based filler is provided. A modified conjugated diene-based polymer including a functional group derived from the modifier having excellent affinity with a filler and improved compounding properties, and a method for preparing the same are also provided.

公开(公告)号：US20210253767A1

公开(公告)日：2021-08-19

申请号：US17251578

申请日：2019-12-20

申请人： LG Chem, Ltd.

发明人： Soo Yong Lee ,  Dong Gil Lee ,  Won Mun Choi ,  Seung Ho Choi

IPC分类号： C08F236/06

摘要： A modified conjugated diene-based polymer represented by Formula 1, wherein a terminal of a polymer chain is modified, and a method for preparing same are provided. By including a modifier derived unit having a specific structure, a beta value affecting cold flow may be reduced through controlling the degree of branch, and accordingly, the cold flow of a polymer may be efficiently controlled and a mooney viscosity increasing ratio may be improved.