Rubber composition for base tread and tire

一种橡胶组合物、胎面基部的技术，应用在特殊轮胎、轮胎零部件、车辆部件等方向，能够解决低燃料消耗、没有具体地研究胎面基部等问题，达到出色耐久性、出色加工性能和燃料经济性、抑制返硫现象的效果

Inactive Publication Date: 2010-06-16
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, there is still room for improvement to achieve reversion suppression, excellent durability, and lower fuel consumption in a balanced manner
Furthermore, the above-mentioned documents do not specifically study the case of application to the tread base

Method used

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  • Rubber composition for base tread and tire

Examples

Experimental program
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Effect test

Embodiment

[0045] Next, the present invention will be specifically described based on examples, but the present invention is not limited to these examples.

[0046] The respective chemicals used in Examples and Comparative Examples are listed below.

[0047] NR: RSS #3.

[0048] BR: BR150B, manufactured by Ube Industries, Ltd.

[0049] Carbon black: N330 (N 2 SA: 88m 2 / g, average particle diameter: 31 nm, DBP oil absorption: 105 ml / 100 g), manufactured by Showa Cabot K.K. Co., Ltd.

[0050] Oil: Process Oil PW-32, manufactured by Idemitsu Kosan Co., Ltd.

[0051] Wax: SUNNOC Wax, manufactured by Ouchi Shinko Chemical Industry Co., Ltd.

[0052] Antiaging agent: NOCRAC 6C (N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine), manufactured by Ouchi Shinshin Chemical Industry Co., Ltd.

[0053] Stearic acid: stearic acid, manufactured by NOF Corporation.

[0054] Mixture (mixture of zinc salt of aliphatic carboxylic acid and zinc salt of aromatic carboxylic acid): Activator 73A, manu...

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Abstract

The present invention aims to produce a rubber composition for a base tread, which suppresses reversion and achieves excellent mechanical strength, fuel economy and processability, and a tire using the rubber composition, with high efficiency to provide them to customers at low prices. The present invention relates to a rubber composition for a base tread, containing: a rubber component; and a mixture of a zinc salt of an aliphatic carboxylic acid and a zinc salt of an aromatic carboxylic acid, wherein the rubber component contains natural rubber and butadiene rubber, the butadiene rubber content being 10 to 90% by mass per 100% by mass of the rubber component, and the mixture of a zinc salt of an aliphatic carboxylic acid and a zinc salt of an aromatic carboxylic acid is contained in an amount of 1 to 10 parts by mass per 100 parts by mass of the rubber component.

Description

technical field [0001] The present invention relates to a rubber composition for a base tread and a tire. Background technique [0002] In recent years, tires for automobiles have been required to have various properties such as fuel economy, handling stability, abrasion resistance, and ride comfort. To improve those properties, various innovations have been made. For example, known innovations include treads of double-layer construction consisting of a cap (cover) and a base tread (inner). Diene rubbers such as natural rubber and butadiene rubber are widely used as the rubber component of the base tread. However, when a rubber composition containing natural rubber and / or butadiene rubber is vulcanized with sulfur, a phenomenon that deteriorates the vulcanized rubber composition or reduces crosslinking, that is, a so-called reversion phenomenon, occurs. [0003] In recent years, vulcanization for tire production is generally performed at high temperature for a short perio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L47/00C08K5/098B60C1/00
CPCY02T10/862C08K5/098C08L9/00B60C1/0016C08L7/00C08L21/00C08L2666/08
Inventor 川崎智史服部高幸
Owner SUMITOMO RUBBER IND LTD
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