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Method for producing rubber composition

A kind of rubber composition and technology of manufacturing method, applied in the field of manufacture of rubber composition to achieve the effect of improving processability

Inactive Publication Date: 2016-06-08
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is room for improvement in the above-mentioned existing solutions in ozone resistance

Method used

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  • Method for producing rubber composition
  • Method for producing rubber composition
  • Method for producing rubber composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0054] The present invention will be described in detail below with examples and comparative examples, but the present invention is not limited by the following examples.

[0055] As shown in the following Table 1, when kneading each rubber chemical, it is divided into A kneading process and B kneading process, and the anti-vibration products of Examples 1 to 4 and Comparative Examples 1 to 4 are manufactured according to the formulation composition shown in Table 1. Rubber composition for rubber. The device used for mixing is a Banbury internal mixer. In the A kneading process, the base rubber (base polymer) is kneaded for about 20 seconds, and other A kneaded rubber chemicals are put in, kneaded for about 120 seconds, and the A kneaded material is discharged at 80 to 130°C. Rubber chemicals in process. Then, put in the rubber obtained in the above A kneading process, knead for about 60 seconds, put in B kneaded rubber chemicals, knead for about 90 seconds, and discharge th...

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Abstract

An object of the present invention is to provide a rubber composition that can improve ozone resistance and processability (scorch resistance) as a rubber composition, and can be suitably used as a vibration-proof rubber material. A method for producing a rubber composition, comprising blending (A) N-phenyl-N-(trichloromethylthio)benzenesulfonamide and ( B) When an amine antioxidant is used to manufacture a rubber composition, a step of kneading a component raw material containing the above-mentioned (A) component and a step of kneading a component raw material containing the above-mentioned (B) component are provided separately, so that the kneading process includes at least 2 stage.

Description

technical field [0001] The present invention relates to a method for producing a rubber composition such as anti-vibration rubber that can be suitably used in a high-temperature environment. Background technique [0002] As the basic characteristics of anti-vibration rubber, it is required to have strength characteristics to support heavy objects such as engines, and anti-vibration performance to absorb and suppress the vibration. Furthermore, when used in a high-temperature environment such as an engine room, not only excellent strength characteristics, low dynamic-to-static modulus ratio (dynamic-to-static modulus ratio) and excellent anti-vibration performance are required, but also excellent heat resistance and compression set are required. [0003] In this way, in order to impart comprehensive and excellent characteristics, the development of rubber components, cross-linking systems, and other additives blended in predetermined amounts in anti-vibration rubber is being ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/00C08J3/20C08K5/17C08K5/435
CPCC08J3/203C08L7/00C08J2307/00C08L2205/03C08L2201/08C08L91/00C08K13/02C08K3/04C08K2003/2296C08K5/435C08K3/06C08K5/18C08K5/3415C08L9/00C08J2309/00
Inventor 山本正明
Owner BRIDGESTONE CORP