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Method of producing rubber composition for tire

A technology of rubber composition and manufacturing method, which is applied in special tires, tire parts, transportation and packaging, etc., can solve the problems of increased man-hours and higher production costs, and achieve the effect of easy contact and good dispersibility

Active Publication Date: 2019-07-19
THE YOKOHAMA RUBBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the use of surface-treated silica, or sequential input and / or separate kneading has the problems of increased man-hours and higher production costs.

Method used

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  • Method of producing rubber composition for tire
  • Method of producing rubber composition for tire
  • Method of producing rubber composition for tire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0097] Regarding the rubber compositions 1 to 6 having the compounding shown in Table 3, the rubber compositions for tires were produced by changing the production method. The rubber compositions prepared in the following examples and comparative examples had the formulations of the corresponding rubber compositions in Table 3 shown in the column of "Rubber Composition" in Tables 1 and 2. The compounding of the rubber composition in Table 3 describes the compounding amount relative to 100 parts by mass of the diene rubber (SBR and / or modified SBR), and describes the abbreviation of each component and which one is mixed in the first stage and the final stage Put it into the mixer during the process. For the mixing of the first stage, the total amount of each component recorded in the "mixing of the first stage" column of Table 3 is according to the "injection of the 1st time" shown in Tables 1 and 2, "injection of the 2nd time" and The order of "the third charge" was charged i...

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Abstract

Provided is a method of producing a rubber composition for a tire having excellent wet grip performance, low rolling resistance, and excellent wear resistance. A method of producing a rubber composition containing 80-180 parts by mass of silica with respect to 100 parts by mass of a diene-based rubber, and containing a silane coupling agent in an amount of 5-18 mass% with respect to the silica content, said method characterized by introducing the silica and the silane coupling agent together into a mixer, mixing the silica and the silane coupling agent, and then introducing the diene-based rubber to the mixture and kneading the resultant mixture.

Description

technical field [0001] The present invention relates to a method for producing a tire rubber composition excellent in wet grip performance, low rolling resistance, and wear resistance. Background technique [0002] Conventionally, pneumatic tires have been required to have excellent wet grip performance for improved safety, low rolling resistance for high fuel consumption performance, and high wear resistance for extended life. However, these properties are contradictory and thus difficult to achieve simultaneously. For example, it is known to modify dynamic viscoelastic properties by blending silica into rubber compositions for tires in order to improve wet grip performance and low rolling properties. However, when silica is blended, there is a problem that the wear resistance is lowered compared to when carbon black is blended. [0003] It is known that in order to improve the abrasion resistance of rubber compositions containing silica, and further improve wet grip perf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/20B60C1/00C08K3/04C08K3/36C08L9/00C08L91/00
CPCB60C1/00C08J3/20C08K3/04C08K3/36C08L9/00C08L91/00Y02T10/86
Inventor 村濑庆介植木加奈子杉浦裕记高木亮佑
Owner THE YOKOHAMA RUBBER CO LTD