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Rubber composition for tire

A rubber composition and tire technology, which is applied in special tires, tire parts, rolling resistance optimization, etc., can solve the problems of dry road performance and wet road performance, increased viscosity of rubber composition, low rolling resistance, etc. Achieve the effects of improving dry road performance and wet road performance, improving dispersibility, and good processability

Active Publication Date: 2016-01-20
THE YOKOHAMA RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the compounding amount of the terminal-modified solution-polymerized styrene butadiene rubber and / or silica is increased, there is a problem that the viscosity of the rubber composition increases and the processability deteriorates.
[0004] Therefore, it is difficult to substantially improve low rolling resistance, dry performance, and wet performance while maintaining excellent processability

Method used

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  • Rubber composition for tire
  • Rubber composition for tire
  • Rubber composition for tire

Examples

Experimental program
Comparison scheme
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Embodiment

[0121] will contain Figure 1 ~ Figure 3 The 29 types of rubber compositions for tires (Examples 1 to 17, Comparative Examples 1 to 12) formulated as shown are obtained by making the components other than sulfur and the vulcanization accelerator Figure 4 Combining the common ingredients shown, sulfur and a vulcanization accelerator were added to a masterbatch discharged by kneading at 160° C. for 5 minutes with a 1.8 L closed-type internal mixer, and kneading was performed with an open roll. also Figure 1 ~ Figure 3 In , for SBR containing oil-spread oil, the net compounding amount of each rubber component is described in parentheses. In addition, the blending amount of aromatic oil and aromatic modified terpene resin was adjusted so that the total of oil spread oil, aromatic oil, and aromatic modified terpene resin in SBR was 30 parts by mass with respect to 100 parts by mass of diene rubber. Or 40 parts by mass. The total amount of oil spread oil, aromatic oil and aroma...

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Abstract

The present invention provides a rubber composition for tires in which low rolling resistance, dry performance, wet performance, and processability have been improved to more than conventional levels. It is characterized in that, with respect to 100 parts by mass of diene rubber containing at least a part of the modified conjugated diene polymer rubber having a siloxane structure at least a part of the terminal modification group, 90 to 100 parts by mass of silica 150 parts by mass, and blended with 3-20 mass % of silane coupling agent relative to the amount of silicon dioxide, 0.1-20 mass % of silane coupling agent with 7-20 carbon atoms relative to the amount of silicon dioxide. Alkyl triethoxysilane.

Description

technical field [0001] The present invention relates to a rubber composition for tires, and in more detail, to a rubber composition for tires in which low rolling resistance, dry performance, wet performance, and processability have been improved to more than conventional levels. Background technique [0002] As performance requirements for pneumatic tires for high-performance vehicles, in addition to excellent grip performance on dry and wet road surfaces, excellent fuel consumption performance is also required due to increasing concern for global environmental issues. Therefore, by adding silica to the rubber composition constituting the tread portion, the dynamic viscoelastic properties such as the loss tangent (tan δ) of the tread rubber can be modified to suppress heat generation, reduce rolling resistance, and improve fuel consumption performance. At the same time, wet road performance is improved. However, silica lacks affinity with diene-based rubbers and tends to c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L15/00B60C1/00C08K3/36C08K5/5415C08L9/00
CPCB60C1/00C08L15/00C08L21/00C08K3/36C08K5/5415Y02T10/86C08L9/00C08L9/06C08L2205/025C08L2205/03
Inventor 杉浦裕记芦浦诚佐藤正树
Owner THE YOKOHAMA RUBBER CO LTD
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