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Rubber composition for tire surface used in summer

A rubber composition and a technology for tire treads are applied in the field of rubber compositions for summer tire treads, and can solve problems such as rising costs, complicated operations, and reduced productivity.

Inactive Publication Date: 2009-05-13
HANKOOK TIRE WORLDWIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Silica compounds are very useful in improving and enhancing the walking performance on wet and slippery road surfaces, but play a very unfavorable role in abrasion resistance performance
[0007] However, even if the shoulder and the inner side are composed of rubber with different properties, it is difficult to satisfy the walking performance on various road surfaces, the work in the extrusion process is complicated, and the change of equipment cannot be avoided, and there are problems of cost increase and productivity decrease

Method used

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Examples

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Embodiment Construction

[0018] The rubber composition of the summer tire tread according to the present invention contains raw rubber and microcapsules.

[0019] The raw material rubber may be any rubber used in normal summer tire treads, such as natural rubber, butadiene rubber, styrene-butadiene rubber, and the like.

[0020] Hereinafter, the microcapsules according to the present invention will be described in more detail.

[0021] In the microcapsules, the phase change material (Phase Change Material; commonly referred to as "PCM") refers to the transformation from a solid phase to a liquid phase or from a liquid phase to a gas phase or vice versa without temperature change within a certain temperature range. Phase inversion (phase), and can absorb or release heat energy, the heat that maintains the same temperature and absorbs or releases when the phase changes is called latent heat.

[0022] That is, the phase change material absorbs heat through the phase change process in which its state changes ...

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PUM

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Abstract

The invention provides a rubber composition of a summer tyre tread capable of maintaining attrition resistance and improving walking performance. The rubber composition of the invention contains a raw rubber and a microcapsule with 1-25 weight parts per 100 weight parts of the raw rubber, wherein the microcapsule contains a phase change matter. The rubber composition reduces the temperature rise of the summer tyre tread by using the phase change matter, maintains the attrition resistance and improves the walking performance.

Description

Technical field [0001] The present invention relates to a rubber composition for summer tire treads. More specifically, it relates to a rubber composition for summer tire treads that improves running performance on wet and dry roads while maintaining abrasion resistance. Background technique [0002] In the conventional summer tires, as a countermeasure to improve and improve the running performance, the rubber composition of the summer tires was added with an increase in the amount of reinforcing agent, or the glass transition temperature was used with a high styrene or vinyl content. High polymer material. [0003] However, increasing the amount of reinforcing agent not only exerts a very unfavorable effect on processability, but also causes problems in performance. [0004] Therefore, efforts have been made to improve walking performance without using such methods. [0005] Recently, silica compounds have been used in treads to improve walking performance on wet and slippery r...

Claims

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Application Information

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IPC IPC(8): C08L21/00C08K9/10B60C1/00
CPCB60C1/0016C08K5/01C08L21/00C08L91/00
Inventor 申贤秀安男勋
Owner HANKOOK TIRE WORLDWIDE
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