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Patent Searching and Data


Title:
RUBBER COMPOSITION, RUBBER/METAL COMPOSITE, CONVEYOR BELT, HOSE, CRAWLER, AND TIRE
Document Type and Number:
WIPO Patent Application WO/2021/066072
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a rubber composition which has excellent adhesiveness to metallic members even without containing any cobalt salt. This rubber composition comprises a rubber ingredient, a bismuth-containing rubber/metal adhesion promotor, and an organic acid salt of a non-bismuth metal, and is characterized in that the molar ratio of the content of non-bismuth metallic elements to the content of bismuth element in the rubber composition, (content of non-bismuth metallic elements)/(content of bismuth element), exceeds 14 but not greater than 100, the rubber/metal adhesion promotor is contained in an amount exceeding 1.5 parts by mass per 100 parts by mass of the rubber ingredient, and the amount of the non-bismuth metallic element contained in the organic acid salt of a non-bismuth metal in the rubber composition is 0.01 mol or larger.

Inventors:
TETSUTANI HISASHI (JP)
TAKAHASHI YUWA (JP)
Application Number:
PCT/JP2020/037325
Publication Date:
April 08, 2021
Filing Date:
September 30, 2020
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
International Classes:
C08L21/00; B60C1/00; B62D55/253; B65G15/34; C08K3/105; C08K3/11; C08K5/098; C08K5/52; C08K5/521; C08K5/55; F16L11/08
Domestic Patent References:
WO2016039375A12016-03-17
Foreign References:
JP2016515149A2016-05-26
JP2011219507A2011-11-04
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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