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Conductive elastomer composition and its mfg. method

A manufacturing method and technology of thermoplastic elastomers, applied in conductors, conductive materials, conductive materials, etc., can solve problems such as damage to mechanical properties, deterioration of compression set, and generation of hydrogen chloride.

Inactive Publication Date: 2004-02-18
SUMITOMO RUBBER IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, according to the basic combination of Example 3 in Table 1 of Japanese Patent Laid-Open No. 8-183866 (excluding ultraviolet absorbers, HALS, coloring agents, etc. that hardly affect compression set, conductivity, etc.) The comparative example 4 in the following table 2 of the present invention has the problem that the compression set is large, and good physical properties cannot be obtained as a conductive member.
As an antistatic agent, a conductive plasticizer material can also be considered, but it is not suitable for the above-mentioned conductive parts because it impairs the mechanical properties, deteriorates the compression set, and contaminates the photoreceptor.
[0010] In addition, ionically conductive polymers that have been put into practical use for conductive parts are mainly vulcanized rubber compositions, and such vulcanized rubber compositions have the problem that they cannot be recycled.
Although it is also possible to use a chloride-based thermoplastic elastomer instead of a vulcanized rubber composition, the problem is that the compression set is large and the photoreceptor is contaminated.
In addition, because it is a chloride, harmful gases such as hydrogen chloride and dioxin may be generated during combustion. With the general increase in awareness of environmental protection issues today, how to properly dispose of it when it is discarded has become a difficulty.

Method used

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  • Conductive elastomer composition and its mfg. method
  • Conductive elastomer composition and its mfg. method
  • Conductive elastomer composition and its mfg. method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to Embodiment 6

[0138]Any one of Examples 1 to 6 is shown in Table 1. In the mixture (A1) containing hydrogenated styrene-based thermoplastic elastomer and olefin resin, and a required amount of softener, the The mixture (A2) of EPDM as the main component of the required amount of softener is dynamically cross-linked and dispersed to form a conductive polymer composition, and each embodiment will contain at least a polyether-containing block copolymer resin and a metal salt The ion conductive resin type antistatic agent is dispersed in a specified volume percentage. Furthermore, the compounding quantity of the ion conductive conductive agent of Example 6 was set to 6 weight part which is less than 10 weight part.

Embodiment 7

[0196] In Examples 7 to 13, 200 parts by weight of EPDM (containing 100% oil) and a dynamic crosslinking mixture of 100 parts by weight of a hydrogenated styrene-based TPE mixture were used as the thermoplastic elastomer composition. In Example 7 and Examples 10 to 13, Conductive Agent 1 was used as an ion-conductive conductive agent containing a polyether-containing block copolymer resin and a metal salt. The compounding amount in Examples 10 and 11 is a ratio of 9.8% by weight to 28.6% by weight of the matrix component in the thermoplastic elastomer composition. Example 12 is 4.8% by weight, and Example 13 is 37.5% by weight.

Embodiment 8

[0197] In Example 8, Conductive Agent 2 was used as the ion-conductive conductive agent, and in Example 9, Conductive Agent 3 was used as the ion-conductive conductive agent. With the amount.

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Abstract

A conductive elastomer composition having rubber-like elasticity and flexibility and thermoplastic-resin-like moldability and realizing a high conductivity. The conductive elastomer composition includes a thermoplastic elastomer composition (A) containing a compound (A1) composed of a thermoplastic resin and / or a thermoplastic elastomer and a compound (A2), composed of a crosslinkable rubber and / or a crosslinkable thermoplastic elastomer, dispersed in the compound (A1) by dynamically crosslinking the compound (A2); and an ionic-conductive agent (B), containing a metal salt and a polyether-containing block copolymer resin, dispersed in the thermoplastic elastomer composition (A). The conductive elastomer composition may contain carbon black (C).

Description

technical field [0001] The present invention relates to a conductive polymer composition, a method for producing the same, and a conductive component using the composition. Specifically, the present invention relates to a conductive polymer composition suitable for Conductive components such as transfer rollers, driving rollers, or developing rollers, charging rollers, conductive belts such as transfer belts, etc. used in copiers, color printers, etc., the present invention improves the compounded ion conductive agent, Good physical properties such as flexibility and moldability of the above-mentioned conductive member and low resistance are realized. Background technique [0002] Conductive parts such as transfer rollers, drive rollers, or developing rollers, charging rollers, etc. in copiers, color printers, etc., and conductive belts such as transfer belts must have a moderately stable resistance value. [0003] Conventionally, as a method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/10C08L23/16C08L53/02C08L71/02C08L77/00H01B1/12
CPCH01B1/122C08L53/02C08G2261/126C08L23/16C08L2205/05C08L77/00C08L71/02C08L2312/00Y10T428/31855C08L2666/24C08L2666/20C08L2666/04C08L29/10
Inventor 服部高幸沟口哲朗榊俊明奥山英之
Owner SUMITOMO RUBBER IND LTD
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