Rubber composition for tire, tire member and tire

A rubber composition and tire technology, which can be used in tire parts, special tires, vehicle parts, etc., and can solve problems such as difficulty in manufacturing tires

Inactive Publication Date: 2008-12-31
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, in the face of the depletion of petroleum resources, it is predicted that it will

Method used

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  • Rubber composition for tire, tire member and tire
  • Rubber composition for tire, tire member and tire
  • Rubber composition for tire, tire member and tire

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0331]

[0332] First, according to the formulation shown in Table 1, materials other than sulfur and a vulcanization accelerator were supplied to an internal mixer, and kneaded at 150° C. for 3 minutes. Next, sulfur and a vulcanization accelerator were added to the obtained kneaded product, followed by kneading at 90° C. for 3 minutes to obtain unvulcanized rubber compositions of Samples 1 to 5, respectively.

[0333] In addition, the numerical value described in the other material column of Table 1 represents the mass part of the compounding quantity of each component when the compounding quantity of a rubber component is 100 mass parts.

[0334] Table 1

[0335]

[0336] (Note 1) Diene rubber A: SBR1502 manufactured by JSR Co., Ltd.

[0337] (Note 2) Diene rubber B: TSR20 grade natural rubber (NR)

[0338] (Note 3) Carbon black: N339 manufactured by Mitsubishi Chemical Corporation

[0339] (Note 4) Silica: Z115GR manufactured by Rhodia Corporation...

experiment example 2

[0371]

[0372] First, according to the formulation shown in Table 2, materials other than sulfur and a vulcanization accelerator were supplied to an internal mixer, and kneaded at 150° C. for 3 minutes. Next, sulfur and a vulcanization accelerator were added to the obtained kneaded product, followed by kneading at 90° C. for 3 minutes to obtain unvulcanized rubber compositions of Samples 6 to 10, respectively.

[0373] In addition, the numerical value described in the other material column of Table 2 represents the mass part of the compounding quantity of each component when the compounding quantity of a rubber component is 100 mass parts.

[0374] Table 2

[0375]

[0376]

[0377] (Note 12) Diene rubber A: SBR1502 manufactured by JSR Co., Ltd.

[0378] (Note 13) Diene rubber B: TSR20 grade natural rubber (NR)

[0379] (Note 14) Carbon black: N339 manufactured by Mitsubishi Chemical Corporation

[0380] (Note 15) Silica: Z115GR manufactured b...

experiment example 3

[0411]

[0412] According to the formulation shown in Table 3, components other than sulfur and the vulcanization accelerator were kneaded at 150° C. for 6 minutes using a Banbury internal mixer to obtain a kneaded product. Next, sulfur and a vulcanization accelerator were added to the above-mentioned kneaded product, and kneaded at 80° C. for 5 minutes using an open mill to obtain unvulcanized rubber compositions of samples 11 to 13. In addition, the numerical value described in the column of each component of Table 3 represents the mass part of the compounding quantity of each component when the mass of the whole rubber component is 100 mass parts.

[0413] table 3

[0414]

[0415] (Note 23) Natural rubber: RSS#3

[0416] (Note 24) Epoxy natural rubber: Malaysian Rubber Board Co., Ltd. (epoxidation rate: 25 mol%)

[0417] (Note 25) Carbon black: Diablack I manufactured by Mitsubishi Chemical Corporation

[0418] (Note 26) Silica: Ultrasil VN3 manufa...

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Abstract

A rubber composition for a tire comprising a rubber component containing at least one of a natural rubber and an epoxidized natural rubber, not less than 15 parts by mass of silica based on 100 parts by mass of the rubber component, and not less than 0.5 part by mass of calcium stearate based on 100 parts by mass of the rubber component, a tire member made using the rubber composition for a tire, and a tire made using the tire member.

Description

technical field [0001] The present invention relates to a rubber composition for a tire, a tire component and a tire. Background technique [0002] In general, for example, in tires for passenger cars, it is desired to reduce the rolling resistance of the tires in consideration of environmental problems and economical efficiency to achieve low fuel consumption of passenger cars. In addition, the durability of tires during long-term driving of passenger cars is also required. [0003] In such passenger car tires, for example, steel cords, organic fiber cords, etc. are generally used as reinforcing materials, and organic fiber cords are often used as carcass cords constituting the carcass of the tire. In this way, when organic fiber cords are used for the carcass cords, in order to improve the adhesion between the carcass cords and the rubber composition covering the carcass cords, it is widely adopted to coat the rubber compositions with the carcass cords. The carcass cord ...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L15/00C08K3/36C08K5/098C08K5/54B60C1/00
CPCY02T10/86
Inventor 石田博一平山道夫
Owner SUMITOMO RUBBER IND LTD
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