公开(公告)号：US20180044452A1

公开(公告)日：2018-02-15

申请号：US15554894

申请日：2016-06-24

申请人： LG Chem, Ltd.

发明人： Suk Youn Kang ,  Hee Jung Jeon ,  Dong Hui Kim ,  Suk Joon Yoo ,  Jeong Heon Ahn ,  Yu Ra Lee

IPC分类号： C08F136/06

CPC分类号： C08F136/06 ,  B60C1/00 ,  C08F4/08 ,  C08F4/545 ,  C08F4/609 ,  C08F8/32 ,  C08F8/42 ,  C08F36/04 ,  C08F136/04 ,  C08F210/12 ,  C08F2410/01 ,  C08K5/0091 ,  C08K5/544 ,  C08K5/57 ,  C08L9/00 ,  C08F36/06 ,  C08F236/06 ,  C08F230/04

摘要： The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. (X1)a—Si—(X2)4-a,  [Formula 1] In Formula 1, a, X1, and X2 are the same as defined in the disclosure.

公开(公告)号：US12110353B2

公开(公告)日：2024-10-08

申请号：US17420235

申请日：2020-09-11

申请人： LG Chem, Ltd.

发明人： Jung Hwan Oh ,  Suk Joon Yoo ,  He Seung Lee ,  Jae Sun Choi

IPC分类号： C08F236/06 ,  C08C19/22 ,  C08C19/25 ,  C08F2/06 ,  C08F8/32 ,  C08F8/42 ,  C08F226/06 ,  C08F236/10 ,  C08F236/14 ,  C08K3/36 ,  C08K5/544 ,  C08L9/06 ,  B60C1/00

CPC分类号： C08F236/06 ,  C08C19/22 ,  C08C19/25 ,  C08F2/06 ,  C08F8/32 ,  C08F8/42 ,  C08F226/06 ,  C08F236/10 ,  C08F236/14 ,  C08K3/36 ,  C08K5/544 ,  C08L9/06 ,  B60C1/0016

摘要： A modified conjugated diene-based polymer and a rubber composition including the same are disclosed herein. The modified conjugated diene-based polymer has excellent processability and good tensile strength and viscoelasticity. In some embodiments, a modified conjugated diene-based polymer includes silicon (Si) and nitrogen (N), and has an N content of 150 ppm or more based on the weight of the modified conjugated diene-based polymer and a rate of change of mooney viscosity (MVR) of 20% or less.

公开(公告)号：US20220259333A1

公开(公告)日：2022-08-18

申请号：US17606848

申请日：2020-09-11

申请人： LG Chem, Ltd.

发明人： Yu Jin Kim ,  Suk Joon Yoo ,  Geun Seung Baek ,  Hyun Jun Kim

IPC分类号： C08C19/25 ,  C08C19/22 ,  C08L9/06 ,  C08F2/06 ,  C08K3/36 ,  C08F226/06

摘要： A modified conjugated diene-based polymer and a rubber composition including the same are disclosed herein. The modified conjugated diene-based polymer has excellent processability and good tensile strength and viscoelasticity. In some embodiments, a modified conjugated diene-based polymer includes a derived unit from a modifier, the modifier including three or more alkoxy groups bonded to silicon; a non-functional chain forming a silicon-carbon bond at one side of the derived unit from a modifier and including a repeating unit derived from a conjugated diene-based monomer; and a functional chain forming a silicon-carbon bond at the other side of the derived unit from a modifier and including two or more derived units from an N-functional group-containing monomer.

公开(公告)号：US11312798B2

公开(公告)日：2022-04-26

申请号：US16763149

申请日：2017-12-22

申请人： LG Chem, Ltd.

发明人： Soo Young Choi ,  Suk Joon Yoo ,  Jeong Heon Ahn ,  Sung Ho Park ,  Suk Youn Kang

IPC分类号： C08F36/04 ,  C08F36/06 ,  C08F36/08 ,  C08F136/06 ,  C08F2/00 ,  C08F4/54 ,  C08F4/44

摘要： The present invention relates to a method of preparing a conjugated diene-based polymer by continuous polymerization using two or more reactors, and relates to a method of preparing a conjugated diene-based polymer which is capable of providing a conjugated diene-based polymer having improved Mooney viscosity and excellent cis 1,4 bond content and linearity, by controlling the injection amount of a conjugated diene-based monomer to each reactor in a specific ratio and resolving the deterioration phenomenon of physical properties, which might be generated in continuous reaction.

公开(公告)号：US20180346616A1

公开(公告)日：2018-12-06

申请号：US15778894

申请日：2017-06-30

申请人： LG Chem, Ltd.

发明人： Kyoung Hwan Oh ,  Hee Jung Jeon ,  Jeong Heon Ahn ,  Suk Joon Yoo ,  Hyo Jin Bae ,  Su Hwa Kim ,  Dong Hui Kim ,  Suk Youn Kang

IPC分类号： C08F36/04 ,  C08K5/549 ,  C08F8/42 ,  C08L9/00 ,  C08K5/3412 ,  C08F4/44

CPC分类号： C08L9/00 ,  C07F7/10 ,  C08C19/22 ,  C08C19/25 ,  C08C19/44 ,  C08F4/42 ,  C08F236/06 ,  C08F236/08 ,  C08F2500/17 ,  C08K5/5442 ,  C08F136/06 ,  C08F4/545

摘要： The present invention provides a modifier, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer, and more particularly, a modifier which includes a compound represented by Formula 1 and is capable of improving the mixing properties between a conjugated diene-based polymer and a filler, a modified and conjugated diene-based polymer which is modified using the same, and a rubber composition including the modified and conjugated diene-based polymer.

公开(公告)号：US20230038987A1

公开(公告)日：2023-02-09

申请号：US17911854

申请日：2021-11-03

申请人： LG Chem, Ltd.

发明人： Jin Young Kim ,  You Seok Seo ,  Suk Joon Yoo ,  He Seung Lee

IPC分类号： C08F236/10 ,  C08K3/36 ,  C08K3/04

摘要： The present invention relates to a modified conjugated diene-based polymer having excellent wet skid resistance and abrasion resistance in a balanced way, and a rubber composition comprising the same, and the modified conjugated diene-based polymer is characterized in including: a repeating unit derived from a conjugated diene-based monomer; and a functional group derived from a modifier, wherein, if measured by differential scanning calorimetry (DSC) through controlling the microstructure of the polymer, a difference between a glass transition onset temperature (Tg-on) and a glass transition offset temperature (Tg-off), which arise glass transition, is 10° C. to 30° C., thereby having excellent wet skid resistance and running resistance in a balanced way and improved effects of abrasion resistance, simultaneously.

公开(公告)号：US20220162363A1

公开(公告)日：2022-05-26

申请号：US17440994

申请日：2020-09-11

申请人： LG Chem, Ltd.

发明人： Youk Reol Na ,  Ro Mi Lee ,  Suk Joon Yoo ,  Geun Seung Baek ,  Hye Jung Shin ,  You Seok Seo ,  Hyeon Jong Park ,  Hye Young Kim

IPC分类号： C08F236/14 ,  C08F8/42 ,  C08K3/36 ,  C08K5/544

摘要： A modified conjugated diene-based polymer, a rubber composition including the same, and a method of making the same are disclosed herein. The modified conjugated diene-based polymer has excellent processability and good tensile strength and viscoelasticity. In some embodiments, a modified conjugated diene-based polymer includes a first chain including a repeating unit derived from a conjugated diene-based monomer, a second chain including a repeating unit derived from a compound represented by Formula 1, and a derived unit from an alkoxysilane-based modifier, wherein the first chain and the second chain are coupled by the derived unit from the alkoxysilane-based modifier.

公开(公告)号：US20220064351A1

公开(公告)日：2022-03-03

申请号：US17420235

申请日：2020-09-11

申请人： LG Chem, Ltd.

发明人： Jung Hwan Oh ,  Suk Joon Yoo ,  He Seung Lee ,  Jae Sun Choi

IPC分类号： C08F236/06 ,  C08F236/10 ,  C08F8/32 ,  C08F8/42 ,  C08K5/544 ,  C08K3/36

摘要： A modified conjugated diene-based polymer and a rubber composition including the same are disclosed herein. The modified conjugated diene-based polymer has excellent processability and good tensile strength and viscoelasticity. In some embodiments, a modified conjugated diene-based polymer includes silicon (Si) and nitrogen (N), and has an N content of 150 ppm or more based on the weight of the modified conjugated diene-based polymer and a rate of change of mooney viscosity (MVR) of 20% or less.

公开(公告)号：US10995165B2

公开(公告)日：2021-05-04

申请号：US16454888

申请日：2019-06-27

申请人： LG Chem, Ltd.

发明人： Suk Youn Kang ,  Soo Young Choi ,  Woo Jin Cho ,  Suk Joon Yoo ,  Jeong Heon Ahn ,  Jin Sook Ryu

IPC分类号： C08F4/54 ,  C08F4/52 ,  C08F136/06 ,  C08K5/57 ,  B60C1/00 ,  C08F4/08 ,  C08F4/609 ,  C08F36/04 ,  C08F136/04 ,  C08F210/12 ,  C08K5/00 ,  C08K5/544 ,  C08L9/00 ,  C08F8/32 ,  C08F8/42

摘要： The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition (X1)a—Sn—(X2)4-a  [Formula 1] wherein, a, X1, and X2 are the same as defined in the disclosure.

公开(公告)号：US10982026B2

公开(公告)日：2021-04-20

申请号：US16627540

申请日：2017-12-26

申请人： LG Chem, Ltd.

发明人： Suk Joon Yoo ,  Sung Ho Park ,  Soo Young Choi ,  Jeong Heon Ahn

IPC分类号： C08F136/00 ,  C08F136/04 ,  C08F4/52 ,  C08F136/06 ,  C08F4/54 ,  C08F236/04 ,  C08F36/04 ,  C08F2/00

摘要： A method of preparing a conjugated diene-based polymer by continuous polymerization using two or more reactors is provided. The method of preparing a conjugated diene-based polymer includes a conjugated diene-based polymer having excellent cis 1,4 bond content and linearity, by adjusting the ratio of a polymer and a monomer in each reactor and by adjusting the retention time in a second reactor and resolving the deterioration phenomenon of physical properties, while improving productivity by reducing the contamination of the reactors.