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Rubber composition for tire and tire manufactured by using the same

A rubber composition and tire technology, which is applied in special tires, tire parts, transportation and packaging, and can solve problems such as reducing work efficiency and adverse effects on the working environment

Inactive Publication Date: 2012-03-14
HANKOOK TIRE WORLDWIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to obtain higher hardness for such tire beads, a reinforced resin is used, which produces a strong odor
[0009] In particular, the cashew nut shell liquid-modified phenolic resin used as a reinforcing agent in the rubber composition for tires can induce a strong odor, adversely affect the working environment of the operator, and also reduce work efficiency.

Method used

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  • Rubber composition for tire and tire manufactured by using the same
  • Rubber composition for tire and tire manufactured by using the same
  • Rubber composition for tire and tire manufactured by using the same

Examples

Experimental program
Comparison scheme
Effect test

manufacture example

[0124] [Manufacturing example: Manufacturing of rubber composition]

[0125] The rubber compositions for tires according to the following Examples and Comparative Examples were produced using the compounding ratio shown in Table 1 below. For the production of the rubber composition for tire treads, refer to the production method of general tire tread rubber.

[0126] [Table 1] (Unit: parts by weight)

[0127] Item

Comparative example 1

Example 1

Example 2

Example 3

Example 4

natural rubber

80

80

80

80

80

E-SBR (1)

20

20

20

20

20

Carbon black A (2)

30

30

30

30

30

Carbon black B (3)

45

45

45

45

45

Cashew nut shell liquid resin A (4)

14

-

-

-

-

Cashew nut shell liquid resin B (5)

-

14

18

14

14

Softener

3.5

3.5

3.5

3.5

3.5

HMTA (6)

0.8

0.8

0.8

1.3

1.3

Vulcanization accelerator 1 (7)

1.2

1.2

1.2

1.2

1.2

Vulcanizing agent (sulfur)

3

3

3

3

2.5

[0128] (1) E-SBR: Emulsified polymerized...

Embodiment 3

[0153] Example 3 is an example in which the methylene conjugate is further added than that of Example 2, and exhibits substantially improved physical properties. In the case of Example 4 in which the sulfur content as a vulcanizing agent is reduced, compared with Comparative Example 1, the hardness, Tanδ value, and low deformation characteristics have excellent results, and the tensile characteristics are also in the appropriate range, which is obvious The odor is reduced, and the physical properties are equivalent or better than those of Comparative Example 1.

[0154] In Example 4, which exhibited the lowest odor intensity, the scorch time also had an excellent value at the same level as that of Comparative Example 1, the hardness and modulus characteristics were also excellent, and the tensile strength and elongation were also in an appropriate range. In addition, the Tanδ value, which indicates the rolling resistance performance, is the best. Compared with Comparative Example...

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Abstract

The present invention relates to rubber composition for tires and tires manufactured by using the same. The rubber composition for tires comprises cashew nut shell liquid modified phenolic resin. The rubber composition for tires can be used for reducing odorous smell, and is provided with proper deformability, stretching property, resistance to rolling, low transformation, etc.

Description

Technical field [0001] The present invention relates to a rubber composition for tires and tires manufactured using the composition, which can maintain processability, tensile properties, rolling resistance properties, and low deformation properties at appropriate levels while reducing odor. Background technique [0002] In recent years, with the high performance and diversification of automobiles, consumers have gradually increased the performance requirements of tires. Compared with specific tires with excellent performance, consumers have a tendency to prefer tires with various excellent performances. In order to improve the various performances required by each part of the tire, new materials are being used and many other applications are being adopted. Active research of this method. [0003] Generally, in terms of various performances of tires, if one of the performances is improved, the other performance will be reduced, that is, the trade-off characteristics. Therefore, it...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/06C08L61/14B60C1/00
CPCB60C1/00C08K3/04C08K5/16C08K5/17C08K2201/006C08L7/00C08L9/06C08L61/14
Inventor 金成奎许成赫
Owner HANKOOK TIRE WORLDWIDE
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