公开(公告)号：US20180312669A1

公开(公告)日：2018-11-01

申请号：US15770902

申请日：2017-06-30

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: C08L9/00 ,  C08F236/08 ,  C08F4/42

CPC classification number: C08F4/44 ,  C08C19/22 ,  C08C19/25 ,  C08F4/54 ,  C08F8/30 ,  C08F8/42 ,  C08F36/04 ,  C08K5/544 ,  C08K5/549

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：US20170275390A1

公开(公告)日：2017-09-28

申请号：US15505371

申请日：2015-11-27

Applicant: LG Chem, Ltd.

Inventor： Hyo Jin Bae ,  Won Hee Kim ,  Hee Jung Jeon ,  Seung Ho Choi ,  Kyoung Hwan Oh ,  Dong Hui Kim ,  Hyun Woong Park ,  Won Mun Choi ,  Jeong Heon Ahn ,  Suk Youn Kang

IPC: C08C19/25 ,  C07F7/18

CPC classification number: C08C19/25 ,  B60C1/00 ,  C07F7/1804 ,  C08C19/22 ,  C08C19/26 ,  C08C19/44 ,  C08F4/46 ,  C08F4/48 ,  C08F36/04 ,  C08F212/08 ,  C08F236/06 ,  C08F236/10 ,  C08K3/04 ,  C08K3/36 ,  C08L9/00 ,  C08L9/06 ,  C08L15/00 ,  C08F4/545

Abstract: The present invention provides a modified butadiene-based polymer capable of enhancing dispersability of an inorganic filler when used in a rubber composition, and enhancing viscoelasticity, a tensile property and processibility of the rubber composition in a balanced way from an interaction with the inorganic filler, and a modifier useful for preparing the same.

公开(公告)号：US20170240669A1

公开(公告)日：2017-08-24

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

CPC classification number: C08F136/06 ,  C08F36/06 ,  C08F4/545 ,  C08F2/38

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：US20220289871A1

公开(公告)日：2022-09-15

申请号：US17629877

申请日：2020-09-18

Applicant: LG CHEM, LTD.

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

IPC: C08C19/14 ,  C08C19/16 ,  C08F236/06 ,  C08F4/54

Abstract: The present invention relates to a method for preparing a modified conjugated diene-based polymer having excellent physical properties such as tensile properties and viscoelasticity properties with a high modification ratio.

公开(公告)号：US20220025080A1

公开(公告)日：2022-01-27

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

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：US20220010105A1

公开(公告)日：2022-01-13

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

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：US10730984B2

公开(公告)日：2020-08-04

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: C07F7/10 ,  C07F7/18 ,  C08C19/25 ,  C08C19/22 ,  C08F36/04 ,  C08F236/06

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.

公开(公告)号：US20200087419A1

公开(公告)日：2020-03-19

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: C08C19/25 ,  C08F136/06

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：US10184012B2

公开(公告)日：2019-01-22

申请号：US15505371

申请日：2015-11-27

Applicant: LG Chem, Ltd.

Inventor： Hyo Jin Bae ,  Won Hee Kim ,  Hee Jung Jeon ,  Seung Ho Choi ,  Kyoung Hwan Oh ,  Dong Hui Kim ,  Hyun Woong Park ,  Won Mun Choi ,  Jeong Heon Ahn ,  Suk Youn Kang

IPC: C08C19/25 ,  C07F7/18 ,  C08F236/10 ,  B60C1/00 ,  C08F36/04 ,  C08C19/22 ,  C08C19/26 ,  C08F212/08 ,  C08F4/46 ,  C08F4/48 ,  C08F236/06 ,  C08K3/04 ,  C08K3/36 ,  C08L9/00 ,  C08L9/06 ,  C08L15/00

Abstract: The present invention provides a modified butadiene-based polymer capable of enhancing dispersability of an inorganic filler when used in a rubber composition, and enhancing viscoelasticity, a tensile property and processibility of the rubber composition in a balanced way from an interaction with the inorganic filler, and a modifier useful for preparing the same.

公开(公告)号：US10040876B2

公开(公告)日：2018-08-07

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 ,  C08K5/09 ,  C08F4/54 ,  C07F5/06 ,  C08F36/04 ,  C08F2/06 ,  C08F2/38 ,  C08F4/60 ,  C08F4/622 ,  C08L9/00 ,  B60C1/00 ,  C08F4/06 ,  C08F4/619

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.