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.

公开(公告)号：US20200339719A1

公开(公告)日：2020-10-29

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： C08F236/14 ,  C08F8/30 ,  C08F8/42 ,  C08K3/34 ,  C08K3/04 ,  B60C1/00

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：US10808055B2

公开(公告)日：2020-10-20

申请号：US16061859

申请日：2017-10-18

申请人： LG Chem, Ltd.

发明人： Yu Jin Kim ,  No Ma Kim ,  Heung Yeal Choi ,  Ho Young Lee

IPC分类号： C08F36/06 ,  C08F8/32 ,  C07F7/18 ,  C08L15/00 ,  C08C19/22 ,  C08C19/44 ,  C07F7/10 ,  C08C19/25 ,  C08F2/06 ,  C08F2/38 ,  C08F236/10 ,  C08K5/17 ,  C08K5/544 ,  C08K5/56 ,  C08F236/06 ,  C08K3/22

摘要： The present invention relates to a modified conjugated diene-based polymer, and more particularly, provides a modified conjugated diene-based polymer which includes a repeating unit derived from a conjugated diene-based monomer and includes at one terminal, a functional group derived from a modifier which includes a compound represented by Formula 1, and a method for preparing the same.

公开(公告)号：US20200002454A1

公开(公告)日：2020-01-02

申请号：US16475525

申请日：2017-12-08

申请人： LG Chem, Ltd.

发明人： Ho Young Lee ,  Ki Seok Son ,  Da Won Chai ,  No Ma Kim ,  Sun Keun Kim ,  Youk Reol Na ,  Hyoung Woo Lee ,  Heung Yeal Choi

IPC分类号： C08F236/10 ,  C08K3/36

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 a rubber composition including 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：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：US10928368B2

公开(公告)日：2021-02-23

申请号：US15739504

申请日：2017-07-14

申请人： LG Chem, Ltd.

发明人： Heung Yeal Choi ,  No Ma Kim ,  Yu Jin Kim

IPC分类号： G01N30/88 ,  B01J20/283 ,  B01D15/42 ,  B01J20/10 ,  B01J20/281 ,  G01N30/86 ,  G01N30/34 ,  G01N30/00

摘要： The present invention relates to a method for measuring a polymer modification ratio, and more particularly, to a method for measuring a polymer modification ratio, which includes preparing a first solution by dissolving a polymer mixture containing a modified polymer and an unmodified polymer in a first solvent, injecting the first solution into a column filled with an adsorbent, adsorbing the modified polymer onto the adsorbent, and eluting the first solution in which the unmodified polymer is dissolved, transferring the eluted first solution to a detector, injecting a second solvent into the column to elute the second solution in which the adsorbed modified polymer is dissolved, and transferring the eluted second solution to the detector.

公开(公告)号：US20180371125A1

公开(公告)日：2018-12-27

申请号：US16061859

申请日：2017-10-18

申请人： LG Chem, Ltd.

发明人： Yu Jin Kim ,  No Ma Kim ,  Heung Yeal Choi ,  Ho Young Lee

IPC分类号： C08F36/06 ,  C08F236/10 ,  C08K5/17 ,  C08K5/544 ,  C08K5/56 ,  C08F2/38 ,  C08F2/06

摘要： The present invention relates to a modified conjugated diene-based polymer, and more particularly, provides a modified conjugated diene-based polymer which includes a repeating unit derived from a conjugated diene-based monomer and includes at one terminal, a functional group derived from a modifier which includes a compound represented by Formula 1, and a method for preparing the same.

公开(公告)号：US09988515B2

公开(公告)日：2018-06-05

申请号：US14394422

申请日：2014-03-27

申请人： LG CHEM, LTD.

发明人： Ro Mi Lee ,  Sang Mi Lee ,  Heung Yeal Choi ,  Yu Jin Kim ,  Moon Seok Chun

IPC分类号： C08K3/36 ,  C08C19/25 ,  C08L9/06 ,  B60C1/00 ,  C08C19/44 ,  C08L15/00

CPC分类号： C08K3/36 ,  B60C1/00 ,  B60C1/0016 ,  C08C19/22 ,  C08C19/25 ,  C08C19/44 ,  C08F36/04 ,  C08F236/10 ,  C08L15/00 ,  C08F4/484

摘要： Disclosed are a method for preparing a conjugated diene polymer including synthesizing an initiator having an anionic end containing an amine and a cationic end containing an alkali metal, polymerizing a combination of an aromatic vinyl monomer using the initiator to synthesize a polymer having a modified end, coupling or reacting the polymer with a compound having at least one silyl group substituted by an alkoxy group and a nitrogen atom to prepare a modified conjugated diene polymer having one end containing amine and the other end containing silyl group substituted by one or more alkoxy group and a nitrogen atom, and a rubber composition comprising the conjugated diene polymer and silica as a reinforcing agent and thus exhibiting superior heat generation, tensile strength, abrasion resistance and wet skid resistance.

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.