Vulcanized rubber composition, tire tread and tire

A rubber composition, vulcanized rubber technology, applied in the direction of tire tread/tread pattern, special tires, tire parts, etc. Excellent wear resistance effect

Inactive Publication Date: 2020-12-18
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the above-mentioned organic fibers, glass fibers, etc. are contained in the rubber composition, they act as fracture nuclei since they do not interact with the rubber, which leads to a decrease in the fracture resistance (abrasion resistance) of the tread rubber.

Method used

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  • Vulcanized rubber composition, tire tread and tire
  • Vulcanized rubber composition, tire tread and tire
  • Vulcanized rubber composition, tire tread and tire

Examples

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specific example

[0110] (Si). The metalloid group preferably has the same hydrocarbon group as the above-mentioned hydrocarbon group. Specific examples of metalloid groups include trimethylsilyl groups. Cp having a cyclopentadienyl ring as a basic skeleton R’ The specific examples are as follows:

[0111]

[0112] (wherein R represents a hydrogen atom, a methyl group or an ethyl group).

[0113] In general formula (III), Cp having an indenyl ring as a basic skeleton R’ is similarly defined as Cp of general formula (I) and (II) R , and preferred examples are the same as above.

[0114] In the general formula (III), Cp having a fluorenyl ring as a basic skeleton R’ can be made by C 13 h 9-x R x or C 13 h 17-x R x express. Here, X is an integer of 0-9 or 0-17. Each R is preferably independently a hydrocarbyl or metalloid group. The hydrocarbon group preferably has 1 to 20 carbon atoms, more preferably has 1 to 10 carbon atoms, and further preferably has 1 to 8 carbon atoms. Pre...

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Abstract

The purpose of the present invention is to provide a rubber composition having excellent wear resistance and workability. In order to achieve the foregoing, the vulcanized rubber composition accordingto the present invention includes a rubber component that contains a multi-component copolymer containing a conjugated diene unit, a non-conjugated olefin unit and an aromatic vinyl unit, and said vulcanized rubber composition is characterized by containing a plurality of voids, said voids having an average diameter of 10 to 300 [mu]m.

Description

technical field [0001] The present invention relates to vulcanized rubber compositions, tire treads and tires. Background technique [0002] Generally, studless tires having softened tread rubber have been used as tires capable of safely running on ice in addition to normal road surfaces. Softening the tread compound is known to improve the ice performance of the tire. However, tires provided with soft tread rubber generally have a problem of poor wear resistance on normal road surfaces, and the performance on ice and wear resistance of the tire are contradictory. [0003] Also known as a method for improving the performance on ice of tires is the method of mixing organic fibers, glass fibers, etc., which scrape icy roads to improve the performance on ice of tires, with rubber compositions for treads. However, when the above-mentioned organic fibers, glass fibers, etc. are contained in the rubber composition, they act as fracture nuclei since they do not interact with the ...

Claims

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Application Information

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IPC IPC(8): C08L9/06B60C1/00C08F210/02C08F212/00C08F212/02C08F212/08C08F236/06C08F236/08C08F236/10
CPCC08F210/02C08F212/08C08F236/06B60C1/0016B60C2011/147B60C2011/145C08L15/00C08L9/00Y02T10/86C08K3/04C08L23/0807C08F4/52C08F2500/32C08F2500/34C08F2500/27C08F2500/35C08F2500/03C08F2500/36
Inventor 庄田靖宏大石茂树
Owner BRIDGESTONE CORP
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