公开(公告)号：US20190048115A1

公开(公告)日：2019-02-14

申请号：US16077882

申请日：2017-06-12

Applicant: LG Chem, Ltd.

Inventor： Ho Young LEE ,  No Ma KIM ,  Sang Mi LEE ,  Sun Keun KIM

IPC: C08F236/10 ,  C08K3/36 ,  B60C1/00

Abstract: The present invention provides a method for preparing a modified and conjugated diene-based polymer, which may prevent processability degradation by restraining the increase of mooney viscosity during post-treatment using steam with high temperature or storage for a long time by stabilizing a modified polymer using a modification stabilizer, and a modified and conjugated diene-based polymer prepared by the preparation method.

公开(公告)号：US20180056716A1

公开(公告)日：2018-03-01

申请号：US15555729

申请日：2016-11-02

Applicant: LG CHEM, LTD.

Inventor： Ho Young LEE ,  No Ma KIM ,  Min Sik MUN

IPC: B60C1/00 ,  C08K5/56 ,  C08L9/06 ,  C08F2/04 ,  C08F210/18 ,  C08F212/08

CPC classification number: B60C1/00 ,  C07C211/09 ,  C07F1/02 ,  C08C19/22 ,  C08C19/44 ,  C08F2/04 ,  C08F210/18 ,  C08F212/08 ,  C08F236/06 ,  C08F2500/21 ,  C08K5/56 ,  C08L9/00 ,  C08L9/06 ,  Y02T10/862

Abstract: The present invention relates to an organolithium compound, and a method for preparing a modified conjugated diene-based polymer using the same. A modified conjugated diene-based polymer having good compatibility with an inorganic filler and improved processability may be provided, and by using a rubber composition including such modified conjugated diene-based polymer, a tire having excellent exothermic properties, tensile strength, abrasion resistance, low fuel consumption and wet traction, and low rolling resistance may be provided.

公开(公告)号：US20230116111A1

公开(公告)日：2023-04-13

申请号：US17799706

申请日：2021-10-20

Applicant: LG CHEM, LTD.

Inventor： Hye Jung SHIN ,  Ho Young LEE ,  Jung Hwan OH

IPC: C08F279/02 ,  C08C19/20 ,  C08F212/08 ,  C08F220/34

Abstract: The present invention relates to a modified conjugated diene-based polymer having excellent affinity with a filler and a method for preparing the same, and provides a modified conjugated diene-based polymer including: a first chain comprising a repeating unit derived from a conjugated diene-based monomer; and one or more graft chains comprising a derived unit from an oligomer and graft-bonded to the first chain, wherein the derived unit from an oligomer comprises a residual group derived from a radical reactive functional group, and a molecular weight distribution increase ratio defined by Mathematical Equation 1 is 20% or less, and a method for preparing the same.