Patent ID: 9714338
Date: 2017-07-25
CPC Classifications: B60C,C08F,C08L

Claim:
1. A method for manufacturing a polymer composition including a mixture of polyisoprene and polystyrene/polybutadiene, comprising: polymerizing styrene monomer or butadiene monomer in the presence of a catalyst to synthesize polystyrene or polybutadiene; adding isoprene monomer to the polystyrene or polybutadiene thus synthesized, to synthesize polyisoprene and thus generate said mixture, wherein the content of the styrene monomer is set to be in the range of 1.7 mol % to 3.3 mol % with respect to the total quantity of the styrene monomer and the isoprene monomer, and wherein the content of the butadiene monomer is set to be in the range of 3.1 mol % to 6.2 mol % with respect to the total quantity of the butadiene monomer and the isoprene monomer.