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Rubbery composition for tire tread

A technology of rubber composition and tire tread, applied in special tires, tire parts, optimization of rolling resistance, etc.

Inactive Publication Date: 2012-05-23
HANKOOK TIRE WORLDWIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in rubber compositions for winter tire treads, simply replacing carbon black with silica as a reinforcing agent does not necessarily improve braking performance on wet roads significantly.
The improvement of the braking performance of winter tires using silica on wet roads is very limited, and the following technical problem remains, that is, it is difficult to properly reconcile the two contradictory performances so as to fully satisfy consumption. degree of request

Method used

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  • Rubbery composition for tire tread
  • Rubbery composition for tire tread
  • Rubbery composition for tire tread

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3 and comparative example 1～5

[0047] Using the compositions shown in Table 1 below, tire rubber compositions of Examples 1 to 3 and Comparative Examples 1 to 5 were prepared. The tire rubber composition is produced by a usual tire production method.

[0048] [Table 1] (parts by weight)

[0049]

[0050]

[0051] 1. Natural rubber: rubber obtained from nature, the chemical name is polyisoprene.

[0052] 2. S-SBR (1): solution-polymerized styrene-butadiene rubber (SBR) produced by a batch process with a styrene content of 24% by weight and a vinyl content in butadiene of 66% by weight.

[0053] 3. S-SBR (2): A solution-polymerized styrene-butadiene rubber (SBR) produced by a continuous process with a styrene content of 24% by weight and a vinyl content in butadiene of 66% by weight.

[0054] 4. BR (1): Nickel butadiene rubber manufactured by Kumho Petrochemical Co., Ltd., trade name KBR01.

[0055] 5. BR (2): Neodymium butadiene rubber manufactured by Lanxess Co., Ltd., trade name is CB29MES.

[...

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Abstract

The invention provides rubbery composition for tire tread, which includes crude rubber and styrene-butadiene rubber containing hydroxyl group. The crude rubber contains natural rubber, solution-polymerized styrene-butadiene rubber, and neodymium butadiene rubber. The rubber composition can enhance braking performance on the ice and snow road, has great braking performance on the dry road and the wet road, the rotation resistance is low, therefore it is can be used in difference seasons.

Description

technical field [0001] The present invention relates to a rubber composition for tire treads, and more specifically, relates to a rubber composition for treads, which can be used in all seasons. Background technique [0002] Recently, with the acceleration of global warming, the amount of annual snowfall in the world has decreased sharply. Although there are cases where snow falls and frozen roads are formed, the snow melts to form a slush state or a wet road state such as rainfall. cases are increasing. [0003] The characteristics of the rubber composition required for braking performance on dry roads or wet roads and ice and snow roads are opposite to each other, so that if one of the performances is selected, the other performance becomes disadvantageous. In winter, most people switch to winter tires with excellent braking performance on icy and snowy roads. However, if the road is wet when there is no snowfall or the snow melts, the braking performance will become very...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/06C08L9/00C08L15/00C08L7/00C08K3/36B60C1/00
CPCY02T10/86B60C1/0016C08C19/04C08L7/00C08L9/00C08L9/06C08L9/10C08L2205/035
Inventor 张寿珍全壹焕
Owner HANKOOK TIRE WORLDWIDE
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