Lerner, David, Littenberg, Krumholz & Mentlik, LLP
Conjugated-diene based copolymer composition, method for preparing the copolymer composition and rubber composition comprising the copolymer composition
A conjugated diene-based copolymer composition is provided. The conjugated diene-based copolymer composition includes a first conjugated diene-based copolymer having 20 wt % to 60 wt % of an aromatic vinyl monomer-derived repeating unit, 35 wt % to 75 wt % of a first conjugated diene-based monomer-derived repeating unit, and 1 wt % to 10 wt % of a hydroxyalkyl (meth)acrylate monomer-derived repeating unit. The first conjugated diene-based copolymer has a Mooney viscosity (MV) at 100° C. of 30 to 120. The conjugated diene-based copolymer composition also includes a second conjugated diene-based copolymer having 20 wt % to 60 wt % of an α-methylstyrene monomer-derived repeating unit and 40 wt % to 80 wt % of a second conjugated diene-based monomer-derived repeating unit. The second conjugated copolymer has a Mooney viscosity (MV) at 100° C. of more than 120 and equal to or less than 200. A method for preparing the conjugated diene-based copolymer is also provided.
LG Chem, Ltd.
C C C B C C C C C C C C C C
C08L C08F C08F B60C C08L C08L C08L C08L C08L C08L C08L C08K C08L C08L
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Hyung Woon Se Eun Jae Min Woo Seok Byoung Yun
Yoon Lee Lee Choi Kim