Title:
共役ジエン系重合体組成物、マスターバッチ、タイヤ用部材、及び共役ジエン系重合体組成物の製造方法
Document Type and Number:
Japanese Patent JP6991817
Kind Code:
B2
Abstract:
To provide a conjugated diene polymer composition capable of providing a rubber composition excellent in silica dispersibility, excellent in fuel saving performance and wet grip performance, and having sufficient breaking strength, breaking elongation and abrasion resistance sufficient in actual uses.SOLUTION: There is provided a conjugated diene polymer composition in which a silica inorganic filler is dispersed in a conjugated diene polymer, and volume fraction of the silica inorganic filler in the conjugated diene polymer composition φ (vol%) and Payne effect ΔG' (MPa) calculated by a viscoelasticity test satisfy the following formula (I). ΔG'<0.250×exp(0.162×φ) (I), where ΔG' represents the Payne effect obtained as difference of storage elastic modulus (G') values when 0.07% strain and 1200% strain of the conjugated diene polymer composition are measured according to ASTM D6204, and φ represents volume fraction (vol%) of the silica inorganic filler in the conjugated diene polymer composition.SELECTED DRAWING: None
Inventors:
Daisuke Hayada
Application Number:
JP2017192620A
Publication Date:
January 13, 2022
Filing Date:
October 02, 2017
Export Citation:
Assignee:
ASAHI KASEI KABUSHIKI KAISHA
International Classes:
C08J3/215; B29B7/48; B29B7/84; B29C31/00; B60C1/00; C08J3/22; C08K3/36; C08L9/00; C08L15/00
Domestic Patent References:
| JP2016538394A |
Foreign References:
| WO2002059193A1 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito