公开(公告)号：US11597828B2

公开(公告)日：2023-03-07

申请号：US16628472

申请日：2019-04-10

申请人： LG Chem, Ltd.

发明人： Youk Reol Na ,  Jae Sun Choi ,  No Ma Kim ,  Jin Young Kim ,  Yu Jin Kim ,  Jae Moon Jun

IPC分类号： B60C1/00 ,  C08F2/04 ,  C08F4/48 ,  C08K3/04 ,  C08K3/36 ,  C08L9/00 ,  C08L9/06 ,  C08C19/22 ,  C08C19/25 ,  C08L25/10 ,  C08K3/013 ,  C08F236/06 ,  C08F236/08 ,  C08F236/10 ,  C08K5/00 ,  C08K5/47

摘要： The present invention relates to a rubber composition having excellent abrasion resistance and improved tensile properties and viscoelasticity properties by controlling compatibility among rubber components, and a tire manufactured using the same.

公开(公告)号：US11427668B2

公开(公告)日：2022-08-30

申请号：US16339227

申请日：2017-12-08

申请人： LG Chem, Ltd.

发明人： Ro Mi Lee ,  No Ma Kim ,  Yu Jin Kim ,  Ho Young Lee ,  Sun Keun Kim ,  Su Min Na ,  Youk Reol Na ,  Heung Yeal Choi

IPC分类号： C08F236/10 ,  C08K3/04 ,  C08K3/36 ,  C08L9/06

摘要： A modified conjugated diene-based polymer, and more particularly, a modified conjugated diene-based polymer having a unimodal molecular weight distribution curve measured by gel permeation chromatography (GPC), molecular weight distribution (PDI; MWD) of less than 1.7, and a Si content of 100 ppm or more based on weight, and including a repeating unit derived from an aromatic vinyl monomer in an amount from 15 wt % to less than 30 wt %, and a rubber composition including the same.

公开(公告)号：US11359078B2

公开(公告)日：2022-06-14

申请号：US16622208

申请日：2019-01-30

申请人： LG CHEM, LTD.

发明人： Youk Reol Na ,  Jae Sun Choi ,  Jin Young Kim ,  No Ma Kim

IPC分类号： C08F2/04 ,  C08L9/06 ,  C08K3/36 ,  C08K3/06 ,  B60C1/00 ,  C08F136/06

摘要： The present invention relates to a rubber composition having excellent abrasion resistance and improved tensile and viscoelastic properties by controlling compatibility among rubber components, and a tire manufactured using the same.

公开(公告)号：US12122856B2

公开(公告)日：2024-10-22

申请号：US16962963

申请日：2018-12-05

申请人： LG Chem, Ltd.

发明人： Ro Mi Lee ,  Hae Sung Sohn ,  Min Sik Mun ,  No Ma Kim ,  Heung Yeal Choi ,  Youk Reol Na ,  Su Min Na

IPC分类号： C08C19/25 ,  B60C1/00 ,  C08C19/22 ,  C08F8/30 ,  C08F8/42 ,  C08F236/14 ,  C08K3/04 ,  C08K3/34 ,  C08L15/00

CPC分类号： C08C19/25 ,  B60C1/0016 ,  C08C19/22 ,  C08F8/30 ,  C08F8/42 ,  C08F236/14 ,  C08K3/04 ,  C08K3/34 ,  C08L15/00 ,  C08F36/06 ,  C08F8/42

摘要： A modified conjugated diene-based polymer is provided, having remarkable processability and excellent tensile strength and viscoelasticity properties, and a rubber composition including the same is also provided. The modified conjugated diene-based polymer has a unimodal shape molecular weight distribution curve by gel permeation chromatography, narrow molecular weight distribution and a Mooney stress-relaxation ratio of 0.7 or more, and includes a functional group derived from a modifier represented by Formula 1, and thus has remarkable processability and excellent tensile properties and viscoelasticity properties.

公开(公告)号：US11702485B2

公开(公告)日：2023-07-18

申请号：US16963407

申请日：2019-05-08

申请人： LG Chem, Ltd.

发明人： Kyung Chang Seo ,  Yu Jin Kim ,  Youk Reol Na ,  No Ma Kim

IPC分类号： C08C19/22 ,  C08C19/25 ,  C08C19/44 ,  B60C1/00 ,  C08F236/06 ,  C08K3/04 ,  C08K3/36

CPC分类号： C08C19/22 ,  C08C19/25 ,  C08C19/44 ,  C08F236/06 ,  C08K3/04 ,  C08K3/36 ,  B60C1/00

摘要： A modified conjugated diene-based polymer and a rubber composition including the same are disclosed herein. In some embodiments, the modified conjugated diene-based polymer includes a modified monomer-derived functional group represented by Formula 1, and an aminoalkoxysilane-based modifier-derived functional group at least one end thereof, wherein the polymer having a unimodal molecular weight distribution, and a polydispersity index (PDI) of 1.0 or more to less than 1.7. The polymer has a narrow and unimodal molecular weight distribution, and has excellent tensile properties and viscoelastic properties while having excellent processability.

公开(公告)号：US20220213239A1

公开(公告)日：2022-07-07

申请号：US17441433

申请日：2020-10-12

申请人： LG Chem, Ltd.

发明人： Tae Chul Lee ,  He Seung Lee ,  No Ma Kim ,  Heung Yeal Choi ,  Youk Reol Na

IPC分类号： C08F136/06 ,  C08F2/01 ,  C08F2/00 ,  C08F236/10 ,  C08F8/04 ,  B01J19/00

摘要： The present invention relates to a method for preparing a modification initiator, the method capable of reducing side reactions to the minimum and obtaining the modification initiator with a high conversion rate, and an apparatus for performing the same, wherein the method includes (S1) reacting a first fluid including a modification functional group-containing compound and a conjugated diene-based monomer and a second fluid including a polymerization initiation functional group-containing compound, and (S2) obtaining a third fluid including a modification initiator prepared by the reaction of Step S1, wherein the modification functional group-containing compound is used in a ratio of greater than 1 mole based on 1 mole of the polymerization initiation functional group-containing compound, the conjugated diene-based monomer is used in a ratio of 1 mole to 4 moles based on 1 mole of the modification functional group-containing compound, and Step S1 and Step S2 are continuously performed.

公开(公告)号：US20210147656A1

公开(公告)日：2021-05-20

申请号：US16622208

申请日：2019-01-30

申请人： LG CHEM, LTD.

发明人： Youk Reol Na ,  Jae Sun Choi ,  Jin Young Kim ,  No Ma Kim

IPC分类号： C08L9/06 ,  C08F136/06 ,  C08F2/04 ,  C08K3/36 ,  C08K3/06 ,  B60C1/00

摘要： The present invention relates to a rubber composition having excellent abrasion resistance and improved tensile and viscoelastic properties by controlling compatibility among rubber components, and a tire manufactured using the same.

公开(公告)号：US20240141149A1

公开(公告)日：2024-05-02

申请号：US18278105

申请日：2022-11-11

申请人： LG Chem, Ltd.

发明人： Ro Mi Lee ,  Youk Reol Na ,  Jin Young Kim

IPC分类号： C08L15/00 ,  B60C1/00 ,  C08K3/04 ,  C08K3/36 ,  C08L9/06 ,  C08L91/00

CPC分类号： C08L15/00 ,  B60C1/0016 ,  C08K3/04 ,  C08K3/36 ,  C08L9/06 ,  C08L91/00 ,  C08L2205/02

摘要： A rubber composition that has excellent viscoelastic properties and abrasion resistance while preventing aging over time, and thus is capable of being used for a long time, and a method for preparing the same is described herein.

公开(公告)号：US20230159685A1

公开(公告)日：2023-05-25

申请号：US17799820

申请日：2021-11-01

申请人： LG Chem, Ltd.

发明人： Hyun Jun Kim ,  Youk Reol Na ,  Jung Hwan Oh ,  No Ma Kim ,  Ro Mi Lee ,  Jae Sun Choi

IPC分类号： C08F236/10 ,  C08C19/22 ,  C08C19/25 ,  C08F2/00

CPC分类号： C08F236/10 ,  C08C19/22 ,  C08C19/25 ,  C08F2/001 ,  B60C1/0016

摘要： The present invention relates to a conjugated diene-based polymer or a modified conjugated diene-based polymer, which has excellent wet skid resistance and abrasion resistance in a balanced way, and a rubber composition including the same, and by controlling the microstructure of the polymer such that a full width at half maximum (FWHM) value of a tan δ peak shown in a temperature range of -100° C. to 100° C. becomes 20° C. or higher in a tan δ graph in accordance with temperature, derived from dynamic viscoelasticity analysis by an Advanced Rheometric Expansion System (ARES), excellent viscoelasticity behavior properties may be shown, and accordingly, the improvement of overall physical properties may be expected.

公开(公告)号：US11254755B2

公开(公告)日：2022-02-22

申请号：US16338817

申请日：2017-12-08

申请人： LG Chem, Ltd.

发明人： Min Sik Mun ,  Ro Mi Lee ,  No Ma Kim ,  Sun Keun Kim ,  Youk Reol Na ,  Heung Yeal Choi

IPC分类号： C08C19/44 ,  C08K3/36 ,  C08K3/04 ,  C08K3/013 ,  B60C1/00 ,  C08F236/10 ,  C08L47/00 ,  C08K5/00 ,  C08K5/548 ,  C08F2/00

摘要： A modified conjugated diene-based polymer, and more particularly, a modified conjugated diene-based polymer having a unimodal molecular weight distribution curve measured by gel permeation chromatography (GPC), molecular weight distribution (PDI; MWD) of less than 1.7, and a Si content of 100 ppm or more based on weight, and including a repeating unit derived from an aromatic vinyl monomer in an amount of greater than 0 wt % and less than 15 wt %, and a rubber composition including the same.