公开(公告)号：US11365269B2

公开(公告)日：2022-06-21

申请号：US16871768

申请日：2020-05-11

Applicant: LG Chem, Ltd.

Inventor： Suk Youn Kang ,  Hyo Jin Bae ,  Hee Jung Jeon ,  Jeong Heon Ahn ,  Heung Yeal Choi ,  Kyoung Hwan Oh ,  Woo Jin Cho

IPC: C08F36/04 ,  C08C19/22 ,  C07F7/10 ,  C08C19/25 ,  C08L15/00 ,  C08C19/44 ,  C08K3/06 ,  C08K5/09 ,  C08F4/54 ,  C08K5/47 ,  C08K5/31 ,  C08K3/04 ,  C08K3/22 ,  C08F136/06 ,  C08F2/06 ,  C08L91/00 ,  C08K5/3437 ,  C08F4/44 ,  C08F8/42 ,  C08K5/549 ,  C08F4/42 ,  C08F236/08 ,  C08L9/00 ,  C08K5/3412 ,  C08F236/06

Abstract: 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：US10538607B2

公开(公告)日：2020-01-21

申请号：US15554935

申请日：2016-06-24

Applicant: LG Chem, Ltd.

Inventor： Suk Youn Kang ,  Hyo Jin Bae ,  Kyoung Hwan Oh ,  Woo Jin Cho ,  Jeong Heon Ahn ,  Sung Hyun Park

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

Abstract: 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-M1-([Y-M2-(X2)n-1])m-a  [Formula 1] In Formula 1, a, m, n, M1, M2, X1, X2 and Y are the same as defined in the disclosure.

公开(公告)号：US20180037675A1

公开(公告)日：2018-02-08

申请号：US15554907

申请日：2016-06-24

Applicant: LG Chem, Ltd.

Inventor： Suk Youn Kang ,  Hyo Jin Bae ,  Sung Ho Park ,  Jeong Heon Ahn ,  Ji Eun Kim ,  Kyoung Hwan Oh

IPC: C08F4/54 ,  C08K5/00 ,  C08F136/04 ,  B60C1/00 ,  C08F36/04 ,  C08F4/08 ,  C08F4/609 ,  C08L9/00 ,  C08K5/544 ,  C08F210/12

Abstract: 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—N—(X2)3-a  [Formula 1] In Formula 1, a, X1, and X2 are the same as defined in the disclosure.

公开(公告)号：US20170275401A1

公开(公告)日：2017-09-28

申请号：US15503900

申请日：2015-11-18

Applicant: LG Chem, Ltd.

Inventor： Kyoung Hwan Oh ,  Won Hee Kim ,  Hyo Jin Bae ,  Jeong Heon Ahn ,  Woo Jin Cho ,  Suk Youn Kang

IPC: C08F36/06 ,  C08F4/54 ,  C07F5/06 ,  C08K5/09

CPC classification number: C08F36/06 ,  B60C1/00 ,  C07F5/068 ,  C08F2/06 ,  C08F2/38 ,  C08F4/06 ,  C08F4/545 ,  C08F4/619 ,  C08F4/622 ,  C08F36/04 ,  C08F136/06 ,  C08K3/04 ,  C08K5/09 ,  C08L9/00 ,  Y02T10/862

Abstract: The present invention provides 1,4-cis polybutadiene having high linearity with an −S/R value of 1 or greater at 100° C., and accordingly, is capable of reducing resistance properties, particularly rolling resistance, and greatly enhancing fuel efficiency properties when used in a rubber composition.

公开(公告)号：US11806697B2

公开(公告)日：2023-11-07

申请号：US17053564

申请日：2019-12-13

Applicant: LG Chem, Ltd.

Inventor： Su Hwa Kim ,  Hyo Jin Bae ,  Kyoung Hwan Oh

IPC: B01J31/02 ,  C08F4/54 ,  C08F236/04

CPC classification number: B01J31/0211 ,  C08F4/545 ,  C08F236/04

Abstract: A catalyst composition capable of forming a conjugated diene-based polymer having a narrow molecular weight distribution by being used in polymerization of a conjugated diene-based monomer, a method of preparing the same, a method of preparing a conjugated diene-based polymer using the catalyst composition, and a conjugated diene-based polymer prepared by the method of preparing the polymer are provided. Since the catalyst composition according to the present invention includes a polymer having a number-average molecular weight of 3,000 g/mol to 10,000 g/mol and including a conjugated diene-based monomer-derived unit, the catalyst composition may be used in the polymerization of a conjugated diene-based monomer to prepare a conjugated diene-based polymer having a narrower molecular weight distribution in comparison to a conventional neodymium catalyst composition.

公开(公告)号：US20210229083A1

公开(公告)日：2021-07-29

申请号：US17053564

申请日：2019-12-13

Applicant: LG Chem, Ltd.

Inventor： Su Hwa Kim ,  Hyo Jin Bae ,  Kyoung Hwan Oh

IPC: B01J31/02 ,  C08F4/54

Abstract: A catalyst composition capable of forming a conjugated diene-based polymer having a narrow molecular weight distribution by being used in polymerization of a conjugated diene-based monomer, a method of preparing the same, a method of preparing a conjugated diene-based polymer using the catalyst composition, and a conjugated diene-based polymer prepared by the method of preparing the polymer are provided. Since the catalyst composition according to the present invention includes a polymer having a number-average molecular weight of 3,000 g/mol to 10,000 g/mol and including a conjugated diene-based monomer-derived unit, the catalyst composition may be used in the polymerization of a conjugated diene-based monomer to prepare a conjugated diene-based polymer having a narrower molecular weight distribution in comparison to a conventional neodymium catalyst composition.

公开(公告)号：US11041025B2

公开(公告)日：2021-06-22

申请号：US16469814

申请日：2018-09-21

Applicant: LG Chem, Ltd.

Inventor： Hyo Jin Bae ,  Su Hwa Kim ,  Jeong Heon Ahn ,  Suk Youn Kang

IPC: C08C19/22 ,  C08C19/25 ,  C08F136/06 ,  C08F4/54 ,  C08F36/04

Abstract: The present invention relates to a modified conjugated diene-based polymer having a high modification ratio with improved compounding properties by being excellent affinity with a filler and a method for preparing the same. The modified conjugated diene-based polymer thus prepared includes a functional group derived from a compound represented by Formula 1 at one terminal, and has excellent affinity with a filler. If the modified conjugated diene-based polymer is applied to a rubber composition, excellent processability, tensile strength and viscoelasticity may be achieved.

公开(公告)号：US20170275391A1

公开(公告)日：2017-09-28

申请号：US15126507

申请日：2015-11-18

Applicant: LG Chem, Ltd.

Inventor： Won Hee Kim ,  Hyo Jin Bae ,  Jeong Heon Ahn ,  Hee Jung Jeon ,  Kyoung Hwan Oh ,  Woo Jin Cho ,  Suk Youn Kang

IPC: C08F4/54 ,  C08K5/02 ,  C07C69/757 ,  C08F212/34 ,  C07F5/06

CPC classification number: C08F4/545 ,  C07C69/757 ,  C07F5/068 ,  C08F136/06 ,  C08F212/34 ,  C08K5/02

Abstract: The present invention provides a catalyst composition exhibiting, by including a lanthanide rare earth element-containing compound; modified methylaluminoxane; a halogen compound; and an aliphatic hydrocarbon-based solvent, excellent catalytic activity even with a small main catalyst amount, capable of preparing a conjugated diene-based polymer having excellent catalytic activity and thereby having high cis-1,4-bond content ratio, high linearity, and narrow molecular weight distribution, and capable of reducing polymerization reaction time, and a method for preparing the same.

公开(公告)号：US11384178B2

公开(公告)日：2022-07-12

申请号：US16765028

申请日：2018-11-13

Applicant: LG Chem, Ltd.

Inventor： Su Hwa Kim ,  Hyo Jin Bae ,  Sung Ho Park ,  Soo Young Choi ,  Jeong Heon Ahn

IPC: C08F36/06 ,  C08F8/30

Abstract: A conjugated diene-based polymer catalyzed with a lanthanide rare earth element, and having high linearity and improved compounding properties, and a method for preparing the same are provided. The conjugated diene-based polymer catalyzed with a lanthanide rare earth element has high linearity, and if applied to a rubber composition, may show excellent processability, tensile strength and viscoelasticity.

公开(公告)号：US20200010596A1

公开(公告)日：2020-01-09

申请号：US16084072

申请日：2017-11-17

Applicant: LG Chem, Ltd.

Inventor： Su Hwa Kim ,  Hyo Jin Bae ,  Jeong Heon Ahn ,  Sung Ho Park ,  Soo Young Choi ,  Dong Hui Kim

IPC: C08F236/06 ,  C07F7/10

Abstract: The present invention relates to a modifier represented by Formula 1, a modified conjugated diene-based polymer having a high modification ratio which includes a modifier-derived functional group, and a method of preparing the polymer.