Conjugated diene-based polymer and rubber composition comprising same

A conjugated diene polymer with controlled properties addresses compatibility issues in rubber compositions, enhancing tire performance by ensuring high strength and wear resistance in mixed rubber systems.

WO2026127413A1PCT designated stage Publication Date: 2026-06-18LG CHEM LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
LG CHEM LTD
Filing Date
2025-11-14
Publication Date
2026-06-18

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Abstract

The present invention relates to a conjugated diene-based polymer and a rubber composition comprising same, the polymer having a low 1,2-vinyl bond content, a degree of hydrogenation of 0.12-0.30, a glass transition temperature of -45 °C or higher, and a difference in solubility parameter with butadiene-based rubber of less than 0.88.
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