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Rubber composition, laminate body, and conveyer belt

A rubber composition and rubber technology, applied in the fields of rubber compositions, conveyor belts, and laminates, can solve the problems of decreased adhesion and environmental degradation of reinforcing members, and achieve the effect of improving durability and excellent adhesion.

Inactive Publication Date: 2018-11-09
BRIDGESTONE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, our research has found that there is a problem that even if the above-mentioned conventional rubber composition is bonded to a reinforcing member, its adhesiveness decreases because of environmental degradation of the reinforcing member due to transportation process, storage process, manufacturing process, etc.

Method used

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  • Rubber composition, laminate body, and conveyer belt
  • Rubber composition, laminate body, and conveyer belt
  • Rubber composition, laminate body, and conveyer belt

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0061] (Preparation of rubber composition)

[0062] The rubber composition of the present invention can be prepared, for example, by kneading the above-mentioned components by using a Banbury mixer, a Brabender mixer, a kneader, or the like.

[0063]The rubber composition prepared in this way has the following characteristics. That is, in the case of bonding such a rubber composition and a reinforcing member, particularly an environmentally deteriorated reinforcing member, and then peeling it off, a high peel strength can be obtained. Furthermore, in the case where such a rubber composition is bonded to a reinforcing member, particularly an environmentally deteriorated reinforcing member, and then peeled off, the amount of the rubber composition remaining on the reinforcing member is large. In addition, due to these characteristics, it can be said that the rubber composition of the present invention has excellent adhesiveness to reinforcing members such as organic fibers, esp...

Embodiment

[0096] The tire of the present invention is described in more detail by way of examples below. However, the tire of the present invention is not limited to the following examples in any way and can be appropriately changed without changing the gist thereof.

[0097]

[0098] By adding processing aids, lubricants, sulfur, vulcanization accelerators and zinc oxide in amounts selected according to conventional methods to the formulations (unit: parts by mass) listed in Tables 1 to 4, the Banbury internal mixer For the preparation of unvulcanized rubber compositions.

[0099] By using the prepared unvulcanized rubber compositions, evaluations of vulcanization time and film thickness stability were performed according to the following procedures (evaluation of film thickness stability was performed only for Examples 21 to 24).

[0100] (Measurement of 90% vulcanization time)

[0101] An unvulcanized rubber composition cut into a block of 8±1 g in weight was used as a sample. By ...

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Abstract

Provided is a rubber composition that can be produced with high productivity and that, in addition to having excellent adhesiveness to reinforcing materials, and in particular to environmentally degraded reinforcing materials, can make for high peeling workability with respect to said reinforcing materials. A rubber composition that is formed by blending: a rubber component that includes a diene rubber; wet silica; carbon black; and calcium carbonate. The blended amount of wet silica is 3 parts by mass or more but less than 5 parts by mass per 100 parts by mass of the diene rubber. The blendedamount of calcium carbonate is 10-120 parts by mass per 100 parts by mass of the diene rubber.

Description

technical field [0001] The present invention relates to a rubber composition, a laminate, and a conveyor belt. Background technique [0002] For the purpose of reinforcing a rubber member to improve its strength, the reinforcing member is used for rubber products requiring strength such as automobile tires, conveyor belts and hoses, and the reinforcing member includes untreated or coated on its surface Organic fibers such as polyethylene terephthalate and nylon impregnated with binder components such as resorcinol-formaldehyde-latex (RFL), and / or inorganic fibers such as steel cords and the like. [0003] In the manufacture of such rubber articles, such reinforcing members and rubber members and / or such reinforcing members themselves are sometimes bonded to each other by means of an adhesive comprising a rubber composition. For example, conveyor belts are frequently used as means of transportation of articles in various industrial fields, and thus are required to have high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00B32B7/12B32B25/04B65G15/32C08K3/04C08K3/26C08K3/36C08L7/00C08L9/06F16G1/08
CPCB32B7/12B32B25/04B65G15/32C08K3/04C08K3/26C08K3/36F16G1/08C08K2003/265C08K2201/006C08L9/06C08L7/00C08L9/00B65G15/34
Inventor 高野元峰常西洋平赤间秀洋
Owner BRIDGESTONE CORP