公开(公告)号：US20180030173A1

公开(公告)日：2018-02-01

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 ,  C08F8/42 ,  C08F8/32

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：US11970616B2

公开(公告)日：2024-04-30

申请号：US17297099

申请日：2019-12-20

Applicant: LG Chem, Ltd.

Inventor： Kyoung Hwan Oh ,  Hyo Jin Bae ,  Hyun Woong Park ,  Jeong Heon Ahn ,  Jae Hyeong Park

IPC: C08K3/06 ,  C08K3/16 ,  C08K5/5333 ,  C08L9/00

CPC classification number: C08L9/00 ,  C08K3/06 ,  C08K3/16 ,  C08K5/5333

Abstract: A modified conjugated diene-based polymer having high linearity and improved compounding properties is provided. The modified conjugated diene-based polymer includes phosphor, sulfur and chlorine in specific amount ranges, and the degree of branching is controlled, and accordingly, if applied to a rubber composition, tensile strength and viscoelasticity may be excellent, and processability may be markedly improved.

公开(公告)号：US11713365B2

公开(公告)日：2023-08-01

申请号：US17296853

申请日：2019-12-20

Applicant: LG Chem, Ltd.

Inventor： Jae Hyeong Park ,  Hyo Jin Bae ,  Jeong Heon Ahn ,  Suk Youn Kang

IPC: C08F8/40 ,  C08F2/38 ,  C08F4/54 ,  C08F136/06 ,  C08K3/16 ,  C08K5/101 ,  C08K5/56

CPC classification number: C08F8/40 ,  C08F2/38 ,  C08F4/545 ,  C08F136/06 ,  C08K3/16 ,  C08K5/101 ,  C08K5/56

Abstract: A method for preparing a modified conjugated diene-based polymer is provided. The method is characterized in adding a polyoxyethylene phosphate ester-based compound having a specific structure together with sulfur chloride modifier during modification, by which modification reproducibility may be markedly improved, stable process may be performed, the changing degree of the physical properties, specifically a Mooney viscosity increasing ratio and the degree of branching of a modified conjugated diene-based polymer according to modification conditions may be anticipated, and the changing degree of a Mooney viscosity increasing ratio and the degree of branching may be easily controlled by controlling modification conditions.

公开(公告)号：US11421053B2

公开(公告)日：2022-08-23

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：US20200270378A1

公开(公告)日：2020-08-27

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 ,  C08F4/44 ,  C08F8/42 ,  C08K5/549 ,  C08F4/42 ,  C08F236/08 ,  C08L9/00 ,  C08K5/3412

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：US10604602B2

公开(公告)日：2020-03-31

申请号：US15684472

申请日：2017-08-23

Applicant: LG CHEM, LTD.

Inventor： Hyo Jin Bae ,  Kyoung Hwan Oh ,  Sae Young Yun ,  Jeong Heon Ahn ,  Woo Jin Cho

IPC: C08F136/06 ,  C07F5/00

Abstract: The present invention relates to a neodymium compound represented by Formula 1 and a catalyst for diene polymerization including the same.

公开(公告)号：US10556976B2

公开(公告)日：2020-02-11

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 ,  C08F136/06 ,  C08K5/57 ,  C08F8/32 ,  C08F8/42

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：US10253119B2

公开(公告)日：2019-04-09

申请号：US15503548

申请日：2015-11-18

Applicant: LG Chem, Ltd.

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

IPC: C08F136/06 ,  C08F4/54 ,  C08F2/38 ,  C08F36/06 ,  C08F2/06

Abstract: The present invention provides a method for preparing a conjugated diene-based polymer including preparing a mixture of a molecular weight modifier and a conjugated diene-based monomer; and polymerization reacting the mixture using a catalyst composition including a lanthanide rare earth element-containing compound, modified methylaluminoxane, a halogen compound and an aliphatic hydrocarbon-based solvent, and therefore, capable of preparing a conjugated diene-based polymer having a high cis-1,4-bond content ratio, high linearity and narrow molecular weight distribution.

公开(公告)号：US20180346616A1

公开(公告)日：2018-12-06

申请号：US15778894

申请日：2017-06-30

Applicant: LG Chem, Ltd.

Inventor： 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: C08F36/04 ,  C08K5/549 ,  C08F8/42 ,  C08L9/00 ,  C08K5/3412 ,  C08F4/44

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

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.