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pneumatic tire

A technology of pneumatic tires and treads, applied in special tires, tire parts, transportation and packaging, etc., can solve problems such as poor initial grip performance and product value decline, and achieve wear resistance and time degradation resistance sexual effect

Inactive Publication Date: 2017-12-08
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, poor initial grip performance means a significant drop in product value

Method used

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Examples

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Effect test

Embodiment

[0071] The present invention will be described more specifically with reference to examples of passenger car tires having a TOS structure, but the present invention is not limited to these examples.

[0072]

[0073] Add 23.6 g of 3-(N,N-dimethylamino)propyltriethoxysilane (manufactured by AZmax Corporation) to a vector bottle (100 ml) under a nitrogen protective atmosphere, and further add anhydrous hexane (Kanto Chemical company) to thereby prepare a total of 100 ml of terminal modifier.

[0074]

[0075] 18 liters of n-hexane (manufactured by Kanto Chemical Co., Ltd.), 2000 g of butadiene (manufactured by Takachiho Trading Co., Ltd.), and 2 mmol of tetramethylethylenediamine (manufactured by Kanto Chemical Company), and then increase the temperature to 60°C. Next, 10.3 ml of butyllithium (manufactured by Kanto Chemical Co., Ltd.) was added to the mixture, and then the temperature was increased to 50° C., followed by stirring for 3 hours. Then, 11.5 ml of the prepared ...

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Abstract

The present invention provides a pneumatic tire having an excellent final bonding surface between the tread and its adjoining tread sidewall or sidewall, while maintaining desired properties of the tire such as abrasion resistance and resistance to degradation over time. The present invention relates to a pneumatic tire comprising a tread and a tread side rubber or sidewall adjacent to the tread, wherein the tread is composed of a tread rubber having a specific net sulfur content derived from a crosslinking agent rubber composition for tread side rubber or sidewall; and derived from rubber composition for tread A specific relationship is satisfied between the net sulfur content of the crosslinking agent in and the net sulfur content derived from the crosslinking agent in the rubber composition used in the tread side rubber or sidewall.

Description

technical field [0001] The present invention relates to a pneumatic tire. Background technique [0002] A pneumatic tire includes a tread, a wing, a sidewall, and various other components. Traditionally, formulations of rubber compositions for various components have been designed by individually testing each rubber composition for each component in a laboratory in order to design a good rubber composition for each individual component (see patent Literature 1-3). Usually, based on the results of design evaluation, tire components are formed from respective good rubber compositions, and then, they are assembled with each other to manufacture a pneumatic tire. [0003] However, even in pneumatic tires formed of rubber compositions for treads and other rubber compositions each showing excellent properties such as excellent wear resistance in laboratory tests, the vulcanized tread and its adjacent tread side The final bonding surface between the gum or the sidewall is someti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/06C08L9/00C08L7/00C08K13/02C08K3/36C08K3/04C08K5/09C08K3/22B60C1/00
CPCB60C1/00C08K3/04C08K3/36C08K5/36C08L7/00C08L9/00C08L15/00B60C1/0016B60C1/0025C08L9/06
Inventor 宫崎达也
Owner SUMITOMO RUBBER IND LTD
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