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Rubber composition and tire produced using same, and process of producing rubber composition

一种橡胶组合物、制造方法的技术，应用在特殊轮胎、轮胎零部件、运输和包装等方向，能够解决没有考虑混炼条件等问题，达到改进低发热性和耐磨耗性、低发热性优良、偶联功能活性提高的效果

Active Publication Date: 2013-11-13
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mixing conditions were not considered

Method used

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  • Rubber composition and tire produced using same, and process of producing rubber composition
  • Rubber composition and tire produced using same, and process of producing rubber composition
  • Rubber composition and tire produced using same, and process of producing rubber composition

Examples

Experimental program
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preparation example Construction

[0183] (Preparation and Purpose of Rubber Composition)

[0184] The rubber composition of the present invention may contain various additives commonly used in the rubber industry, such as sulfur, vulcanization accelerators, softeners, process oils, anti-aging agents, anti-scorch agents, within the range of not impairing the advantageous effects of the present invention as required , Zinc China, anti-caking agents, foaming agents, foaming aids and resins.

[0185] The rubber composition of the present invention can be obtained by kneading with an open kneader such as a roll or a closed kneader such as a Banbury mixer, and can be obtained in Vulcanized after molding, so it can be applied to various rubber products. The rubber composition can be applied to tire members such as tire treads, under treads, carcass, sidewalls, sidewall reinforcing rubber members, and bead fillers, and is particularly preferably applied to low heat build-up, Tread rubber for fuel-saving tires, large...

Embodiment

[0276] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to the examples.

[0277] The loss tangent (tan δ) and abrasion resistance of the rubber composition after vulcanization were measured in the following manner, the amount of organic acid remaining in E-SBR and the modified styrene-butadiene copolymer rubber (modified SBR ) microstructure (ie, bound vinyl content and bound styrene content).

[0278] (1) Tangent of loss angle (tanδ)

[0279] For Examples 1-47 and Comparative Examples 1-5, under the conditions of a dynamic strain of 1%, a frequency of 10 Hz and a temperature of 50° C., a dynamic spectrometer (dynamic spectrometer) manufactured by Rheometrics, Inc., U.S. was used to measure For the rubber composition, tan δ is expressed as an index with the reciprocal of tan δ of the controls (Comparative Examples 1, 2, 3, 4 and 5 and Example 22) being 100. A larger index value means lower exot...

manufacture example 1

[0292] In an 800mL pressure-resistant glass container that has been dried and replaced with nitrogen, put the cyclohexane solution of 1,3-butadiene and the cyclohexane solution of styrene so that the 1,3-butadiene in the container 60 g of alkenes and 15 g of styrene were put into 0.70 mmol of 2,2-ditetrahydrofurylpropane, and further 0.70 mmol of n-butyllithium (BuLi) was added, and then it was polymerized in a warm water bath at 50°C for 1.5 hours . The polymerization conversion here is almost 100%.

[0293] Post-polymerization processing

[0294] Then, a solution of 2,6-di-tert-butyl-p-cresol (BHT) in isopropanol was added to the polymerization reaction system to terminate the polymerization reaction. Thereafter, the product was vacuum-dried to provide a solution-polymerized SBR (S-SBR). The resulting solution-polymerized S-SBR had a bound styrene content of 20% and a bound vinyl content of 55% of the butadiene moiety. Solution-polymerized S-SBR was used as the rubber co...

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Abstract

Rubber composition containing at least 10 parts by mass, in 100 parts by mass of a rubber component, of a polymer component (B) containing a residue of an organic acid (A) added in a production process of the polymer, and containing from 10 to 150 parts by mass of a reinforcing filler (C), and 6 parts by mass or less in total of the residue of an organic acid (A) and an organic acid (D) used on mixing, per 100 parts by mass of the rubber component, thereby providing a rubber composition and a tire produced by using the composition, by defining the total amount of an acidic component with respect to the total mixed rubber, including an organic acid, such as stearic acid, and an organic acid contained in a residue of an emulsifier added in a production process of emulsion-polymerized SBR.

Description

technical field [0001] The present invention relates to rubber compositions and tires manufactured using them. More specifically, the present invention relates to a rubber composition having reduced hysteresis loss and capable of providing a tire having good rolling resistance and excellent wear resistance, and a tire manufactured using the same. Background technique [0002] With regard to the recent global trend of reduction in carbon dioxide emissions associated with social demands for energy saving and increasing concern for environmental issues, there is an increasing stringent demand for improved wear resistance, which can contribute to the fuel consumption of motor vehicles Consumption reduction and resource saving. In order to meet this demand, tires are required to reduce rolling resistance. While researching measures by optimizing the tire structure, the use of low heat-generating materials has been the most common measure for reducing the rolling resistance of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00B60C1/00C08K3/00C08K5/09
CPCC08L7/00C08K5/548C08K5/098C08K5/09C08K13/02C08K3/36B60C1/0025B60C1/0016C08K3/04B60C1/00C08L9/06C08L15/00C08L2205/03C08L91/00C08K5/47B29B7/7495B29B7/002B29B7/90B29B7/286B29B7/183C08L9/08C08L2205/02C08L2205/025
Inventor 铃木英寿伊藤夕记玉手亮多
Owner BRIDGESTONE CORP
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