Title:
RUBBER COMPOSITION AND TIRE
Document Type and Number:
WIPO Patent Application WO/2022/091982
Kind Code:
A1
Abstract:
Provided is a rubber composition that includes: 10-90 parts by mass, inclusive, of a rubbery polymer in which the iodine value is 10-200 (g/100g), the content of ethylene structures is 3 mass% or more, the content of aromatic vinyl monomer blocks is less than 10 mass%, and the content of conjugated diene monomer units is 2 mass% or more; and 10-90 parts by mass, inclusive, of a natural rubber. The rubber composition also includes 20-80 parts by mass, inclusive, of a silica-based inorganic filler and carbon black per 100 parts by mass total of the rubber component containing the rubbery polymer and the natural rubber. The content of the silica-based inorganic filler is 60 parts by mass or less, and the content of the carbon black is 60 parts by mass or less.
Inventors:
INOUE YOSHIHISA (JP)
Application Number:
PCT/JP2021/039141
Publication Date:
May 05, 2022
Filing Date:
October 22, 2021
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
C08L7/00; B60C1/00; C08C19/02; C08K3/04; C08K3/36; C08L9/00; C08L9/06; C08L15/00; C08L91/00
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Other References:
I. M. KOLTHOFF ET AL., J. POLYM. SCI., vol. 1, 1946, pages 429
J. BICERANO: "Prediction of Polymer Properties", 2002, MARCEL DEKKER
R. R. HAMPTON, ANALYTICAL CHEMISTRY, vol. 21, 1949, pages 923
See also references of EP 4239023A4
J. BICERANO: "Prediction of Polymer Properties", 2002, MARCEL DEKKER
R. R. HAMPTON, ANALYTICAL CHEMISTRY, vol. 21, 1949, pages 923
See also references of EP 4239023A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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