Title:
RUBBER COMPOSITION, RUBBER/METAL COMPOSITE, HOSE, CONVEYOR BELT, RUBBER CRAWLER, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2022/123869
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a rubber composition having excellent adhesiveness to metallic members.
The rubber composition comprises a rubber component, a modified polymer, and a rubber-metal adhesion promoter, wherein the modified polymer is contained in an amount of 50 parts by mass or less per 100 parts by mass of the rubber component and the rubber-metal adhesion promoter comprises one or more compounds selected from the group consisting of aliphatic carboxylic acid/metal salts (1) (excluding zinc dimethacrylate) and compounds (2) represented by formula (A): [(RCOO)xMO]3Z, the aliphatic carboxylic acids of the metal salts (1) each having 2-25 carbon atoms, the metals of the metal salts (1) each being Bi, Zn, Cu, Sb, Ag, Nb, or Zr. In the formula (A), (RCOO) is a residue of an aliphatic carboxylic acid having 2-25 carbon atoms, M is Bi, Zn, Cu, Sb, Ag, Nb, or Zr, x is an integer of 1 to [(valence of M)-1], and Z is a structure selected from among formulae (z-1) to (z-4).
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Inventors:
TETSUTANI HISASHI (JP)
TAKAHASHI YUWA (JP)
TAKAHASHI YUWA (JP)
Application Number:
PCT/JP2021/035954
Publication Date:
June 16, 2022
Filing Date:
September 29, 2021
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L21/00; B60C1/00; B62D55/26; B65G15/34; C08K3/36; C08K5/09; C08K5/49; C08K5/55; C08L7/00; C08L25/10; C08L101/00; C08L101/02; F16L11/08
Domestic Patent References:
| WO2016039375A1 | 2016-03-17 | |||
| WO2016039376A1 | 2016-03-17 |
Foreign References:
| CN107163308A | 2017-09-15 | |||
| JP2011016976A | 2011-01-27 | |||
| JP2017214531A | 2017-12-07 | |||
| JP2019156868A | 2019-09-19 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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