Title:
RUBBER COMPOSITION WITH IMPROVED HYSTERESIS LOSS, VULCANIZATE AND MANUFACTURING METHOD OF RUBBER COMPOSITION
Document Type and Number:
Japanese Patent JP2018123225
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a rubber composition excellent in low hysteresis loss property and fatigue resistance, a vulcanizate and a manufacturing method of the rubber composition.SOLUTION: There is provided a rubber composition containing a rubbery polymer containing at least a modified conjugated diene polymer by modifying a conjugated diene polymer and a silica-based filler, a value P/T, by dividing a ratio P (D/D) between an approximate index (D) of average distance between aggregates of silica particles in a drawing direction calculated by a time sharing X ray small angle scattering measurement method and an approximate index (D) of the average distance between aggregates of silica particles in a vertical direction to the drawing direction by mass fraction T of the modified conjugated diene polymer to whole rubbery polymer is 2.5 to 3.3 when the rubber composition is vulcanization molded to be a vulcanization rubber sheet, the vulcanization rubber sheet is stretched at 200% and sine strain is added under a condition of ±100% and frequency of 10 sec.SELECTED DRAWING: None
Inventors:
YAMADA CHIGUSA
SAKAMOTO NAOKI
SAKAMOTO NAOKI
Application Number:
JP2017015873A
Publication Date:
August 09, 2018
Filing Date:
January 31, 2017
Export Citation:
Assignee:
ASAHI KASEI CORP
International Classes:
C08L15/00; C08F8/30; C08F36/04; C08J3/20; C08K3/36
Domestic Patent References:
| JP2015131955A | 2015-07-23 | |||
| JP2013108800A | 2013-06-06 |
Foreign References:
| WO2016133202A1 | 2016-08-25 | |||
| WO2013099324A1 | 2013-07-04 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito