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US 11,091,609 B2Granted
Modified conjugated diene-based polymer, production method thereof, rubber composition and tire
AssigneeAsahi Kasei Kabushiki Kaisha
InventorsMiki Kyo, Kenta Hisamura
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Abstract
A modified conjugated diene-based polymer having a nitrogen atom, wherein a content of the nitrogen atom is 25 mass ppm or more based on a total amount of the modified conjugated diene-based polymer, a shrinking factor (g′) is 0.59 or less in a GPC-light scattering measurement method with a viscosity detector, and a weight average molecular weight is 200,000 or more and 3,000,000 or less.
Claims18
A modified conjugated diene-based polymer having a nitrogen atom, wherein
- a content of the nitrogen atom is 25 mass ppm or more based on a total amount of the modified conjugated diene-based polymer,
- a shrinking factor (g′) is 0.59 or less in a GPC-light scattering measurement method with a viscosity detector,
- a weight average molecular weight is 200,000 or more and 3,000,000 or less, and
- a branching degree is 8 or more.
1 more element
Dependencies are inferred from the claim text.