Rubber composition and tire having tread comprising thereof

A rubber composition, rubber technology, applied in the direction of tire tread/tread pattern, special tire, tire parts, etc.

Inactive Publication Date: 2006-08-23
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, there is no rubber composition for tires that can make the rolling resistance performance of the tire, the wet braking performance and the drivability of the car three in a good balance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] The present invention is specifically explained based on examples, but the present invention is not limited thereto.

[0033] The various chemicals used in the examples are specifically described below.

[0034] SBR (styrene-butadiene rubber): E15, produced by Asahi Kasei

[0035] Silicon dioxide (1): ULTRASIL 360, produced by Degussa company (hydrous silicon dioxide prepared by wet method; N 2 SA: 50m 2 / g)

[0036] Silicon dioxide (2): ZEOSIL 1205MP, produced by Rhodia Company (hydrous silicon dioxide prepared by wet method; N 2SA: 200m 2 / g)

[0037] Silica (3): ULTRASIL VN3, produced by Degussa Company (hydrous silica prepared by wet method: N 2 SA: 175m 2 / g)

[0038] Aromatic oil: DIANNA PROCESS OIL AH-24, manufactured by Idemitsu Kosan Co., Ltd.

[0039] Zinc oxide: ZINC OXIDE, produced by Mitsui Mining and Metallurgy Co., Ltd.

[0040] Stearic acid: STEARIC ACID "TSUBAKI", manufactured by NOF Corporation

[0041] Antioxidant: Antigene 6C (N-(1,3 dimet...

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Abstract

There is provided a rubber composition capable of producing a tire which improves rolling resistance performance, wet skid performance and drivability of a vehicle in good balance, and a tire having a tread comprising thereof. A rubber composition comprising 30 to 150 parts by weight of the total of (1) silica with a nitrogen adsorption specific area of 100 m 2 / g or less and (2) silica with a nitrogen adsorption specific area of 180 m 2 / g or more based on 100 parts by weight of a rubber component, wherein the content of silica (1) and silica (2) satisfies the following formula, and a tire having a tread comprising thereof: [ Content of silica ( 1 ) ] 0.2 [ content of silica ( 2 ) ] [ content of silica ( 1 ) ] 6.5.

Description

[0001] Technical Field The present invention relates to a rubber composition and a tire having a tread comprising the rubber composition. Background technique [0002] The fuel consumption of the car is generally reduced by reducing the rolling resistance of the tires (improving the rolling resistance performance). Recently, the demand for reducing the fuel consumption of automobiles has been increasing, and it is required to have good low heat generation for rubber compositions for treads which are used in the production of tire components in a high proportion. [0003] As a method for satisfying low heat generation of rubber compositions, a method of reducing reinforcing fillers is known. However, there are problems in that tires become soft due to a reduction in the hardness of the rubber composition, and the handling (drivability) of automobiles and the wet braking performance of tires are reduced. [0004] In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08K3/36B60C1/00B60C11/00
CPCC08L81/04C08K5/372C08L21/00B60C1/0016C08K3/36C08L9/06Y02T10/86C08L2666/14
Inventor 保地和郎上坂宪市
Owner SUMITOMO RUBBER IND LTD
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