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Antiaging-agent-supplying composition, antiaging-agent-supplying material, and method for supplying antiaging agent

An anti-aging agent and composition technology, applied in chemical instruments and methods, compositions for inhibiting chemical changes, etc., can solve problems such as cost increase, insufficient improvement effect of ozone resistance, etc., and achieve the goal of inhibiting the reduction of ozone resistance. Effect

Pending Publication Date: 2022-01-18
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these techniques have only an insufficient effect of improving ozone resistance, and also cause an increase in cost

Method used

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  • Antiaging-agent-supplying composition, antiaging-agent-supplying material, and method for supplying antiaging agent
  • Antiaging-agent-supplying composition, antiaging-agent-supplying material, and method for supplying antiaging agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4 and comparative example 1～2

[0078] Samples of the antioxidant supply compositions of Examples 1 to 4 and Comparative Examples 1 to 2 were produced under the following conditions.

Embodiment 1

[0080] 0.5 g (10% by mass) of N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine ("NOCRAC6C", manufactured by OuchiShinko Chemical Industrial Co., Ltd.) as an antiaging agent Add to 4.5g silicone grease (“MOLYKOTE FS-50”, manufactured by Dow Corning Toray Co., Ltd., SP value: 7.0 (cal / cm 3 ) 1 / 2 ) and mixed to produce a sample of the antiaging agent supply composition.

Embodiment 2

[0082] A sample of the antiaging agent supply composition was produced on the same conditions as in Example 1 except that the addition amount of the antiaging agent was 0.24 g (5% by mass).

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Abstract

The purpose of the present invention is to provide an antiaging-agent-supplying composition capable of replenishing a rubber article with an antiaging agent without requiring a long time for said replenishment. In order to achieve the purpose described above, the present invention is an antiaging-agent-supplying composition including a base material and 5% by mass or more of an antiaging agent, and is characterized in that the solubility parameter (SP value) of the base material is less than 7.8 (cal / cm<3>)1 / 2.

Description

technical field [0001] The present disclosure relates to an antioxidant supply composition, an antioxidant supply material, and an antioxidant supply method. Background technique [0002] Rubber products for outdoor use such as tires, hoses, belts, and crawlers generally contain anti-aging agents to prevent deterioration caused by ultraviolet rays, ozone, and the like. [0003] However, the antioxidant in rubber products is consumed over time and its content decreases. Therefore, after the rubber product is used for a certain period of time, the rubber product tends to crack due to deterioration caused by ultraviolet rays, ozone, etc. (ie, ozone resistance tends to decrease). [0004] Such a decrease in ozone resistance can be suppressed by increasing the amount of the antioxidant contained in the rubber article based on the reduced amount of the antioxidant. However, if the content of the antioxidant in the rubber product increases, the surface of the rubber product turns...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L27/12C08K5/18
CPCC08K5/18C08L2201/08C08L83/04C08L27/12C09K15/18C08L101/12C08G77/04C08K5/005
Inventor 福岛敦菅野裕士田原圣一三浦贵裕浦田智裕
Owner BRIDGESTONE CORP
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