JPH0354711B2 - - Google Patents
Info
- Publication number
- JPH0354711B2 JPH0354711B2 JP18326683A JP18326683A JPH0354711B2 JP H0354711 B2 JPH0354711 B2 JP H0354711B2 JP 18326683 A JP18326683 A JP 18326683A JP 18326683 A JP18326683 A JP 18326683A JP H0354711 B2 JPH0354711 B2 JP H0354711B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- resin
- metal
- base resin
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920005989 resin Polymers 0.000 claims description 53
- 239000011347 resin Substances 0.000 claims description 53
- 229910052751 metal Inorganic materials 0.000 claims description 47
- 239000002184 metal Substances 0.000 claims description 47
- 239000000835 fiber Substances 0.000 claims description 35
- 239000000843 powder Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 18
- 239000004033 plastic Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 229920001169 thermoplastic Polymers 0.000 claims description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 239000002985 plastic film Substances 0.000 claims description 5
- 229920006255 plastic film Polymers 0.000 claims 4
- 239000008188 pellet Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000004721 Polyphenylene oxide Substances 0.000 description 5
- 229920006380 polyphenylene oxide Polymers 0.000 description 5
- -1 polypropylene Polymers 0.000 description 5
- 238000004898 kneading Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Conductive Materials (AREA)
Description
【発明の詳細な説明】
技術分野：
本発明は導電性プラスチツク組成物、特に、金
属粉末もしくは金属短繊維を含む熱可塑性プラス
チツクフイルムの細片と金属粉末もしくは金属短
繊維とを熱可塑性基材樹脂中に混合して得られる
プラスチツク組成物に関する。DETAILED DESCRIPTION OF THE INVENTION Technical field: The present invention provides a conductive plastic composition, in particular a thermoplastic film strip containing metal powder or short metal fibers and a thermoplastic base resin. Plastic compositions obtained by mixing in plastic compositions.
従来技術：
プラスチツク樹脂はその用途に応じて導電性、
帯電防止効果、電磁シールド性などに優れている
ことが必要である。特開昭56−89447号公報、特
開昭57−65754号公報および特開昭54−90596号公
報にはプラスチツク樹脂中に金属短繊維により導
電回路を形成しそれによつて樹脂自体に導電性を
もたせることが開示されている。このような金属
短繊維は樹脂中では各繊維間で交絡点を形成しに
くい。導電性を有効に発揮させるには、それゆ
え、大量の金属繊維を必要とする。この金属繊維
は、また、樹脂中に混練するとき折れやすく、ペ
レツト製造時にもとの長さの１／２〜１／３に折れ成形
加工時にさらに折れて、もとの長さよりも非常に
短いものになつてしまう。そのため、上記各公報
のように大量の金属繊維を基材樹脂に混練しても
導電性に優れた製品を得ることは工業的な規模で
は困難である。導電性を高める目的で金属長繊維
を用いても長さが１cm以上の長繊維は樹脂中に混
練されにくい。しかも、折れないように混練する
ためには高度の技術と熟練を要する。たとえ長繊
維を樹脂中に混練しペレツトを製造しても成形加
工の段階でこの長繊維は折れてしまい、結局、導
電性に優れた製品を得ることができない。Conventional technology: Plastic resins can be electrically conductive or
It is necessary to have excellent antistatic effect and electromagnetic shielding properties. JP-A-56-89447, JP-A-57-65754, and JP-A-54-90596 disclose a method of forming a conductive circuit using short metal fibers in a plastic resin, thereby imparting conductivity to the resin itself. It is disclosed that it can be made to last. Such short metal fibers are difficult to form intertwining points between each fiber in the resin. Therefore, large amounts of metal fibers are required to effectively exhibit electrical conductivity. These metal fibers also tend to break when kneaded into the resin, and during pellet production they are folded to 1/2 to 1/3 of their original length, and during the molding process, they are further broken, making them much shorter than their original length. It becomes a thing. Therefore, it is difficult on an industrial scale to obtain a product with excellent conductivity even if a large amount of metal fiber is kneaded into the base resin as in the above publications. Even if long metal fibers are used for the purpose of increasing conductivity, long fibers with a length of 1 cm or more are difficult to knead into the resin. Moreover, it requires a high degree of skill and skill to knead the material without breaking it. Even if long fibers are kneaded into a resin to produce pellets, the long fibers will break during the molding process, making it impossible to obtain a product with excellent conductivity.
金属繊維を折れにくくする目的で極細の金属繊
維を用いることも可能であるが、このような極細
繊維は見かけ比重が極端に小さいため、所定の導
電性を獲得するには大きなかさの金属繊維を用い
ねばならない。このようなかさの高い繊維を均一
に樹脂中に混練することは技術的に難しい。それ
を射出成形などの手段により所望の形状に成形す
ることも難しい。しかも、金属繊維が均一に混合
されにくいため導電率が不均一な製品になるおそ
れがある。金属粉末を基材樹脂に充填する方法も
あるが、同じ理由により、優れた導電性を得るた
めには多量の粉末を用いねばならない。 It is also possible to use ultra-fine metal fibers to make them less likely to break, but since such ultra-fine fibers have extremely low apparent specific gravity, it is necessary to use large bulk metal fibers to achieve the desired conductivity. must be used. It is technically difficult to uniformly knead such bulky fibers into a resin. It is also difficult to mold it into a desired shape by means such as injection molding. Moreover, since it is difficult to mix the metal fibers uniformly, there is a risk that the product will have non-uniform conductivity. Another method is to fill the base resin with metal powder, but for the same reason, a large amount of powder must be used to obtain good conductivity.
発明の目的：
本発明の目的は、金属粉末や金属繊維本来の導
電性機能を十分に発揮しうる形で基材樹脂中に配
合させた導電性に優れたプラスチツク組成物を提
供することにある。本発明の他の目的は、全体的
に均一な導電率を有するプラスチツク組成物を提
供することにある。本発明のさらに他の目的は、
平易に製造されうる導電性に優れたプラスチツク
組成物を提供することにある。Purpose of the invention: The purpose of the present invention is to provide a plastic composition with excellent conductivity, which is blended into a base resin in a form that can fully exhibit the conductive function inherent to metal powder and metal fibers. . Another object of the invention is to provide a plastic composition having uniform electrical conductivity throughout. Still another object of the present invention is to
The object of the present invention is to provide a plastic composition with excellent conductivity that can be easily produced.
発明の要旨：
本発明の導電性プラスチツク組成物は、金属粉
末もしくは金属短繊維を含有した熱可塑性プラス
チツクフイルムの細片と金属粉末もしくは金属短
繊維とを前記フイルムを構成する樹脂よりも低い
溶融温度を有する熱可塑性基材樹脂に混合してな
り、そのことにより上記目的が達成される。Summary of the invention: The conductive plastic composition of the present invention is characterized in that the thermoplastic film strips containing metal powder or metal short fibers and the metal powder or metal short fibers are melted at a lower melting temperature than the resin constituting the film. The above object is achieved by mixing it with a thermoplastic base resin having the following.
上記金属粉末もしくは金属繊維の素材として
は、例えば、銀、銅、ニツケル、アルミニウム、
ステンレス、鉄（軟磁性鉄）などがある。プラス
チツク細片を構成する樹脂と基材樹脂とは加熱し
て混練するときに成形温度条件下で該基材樹脂と
均一に混ざりあわないように基材樹脂よりも高い
溶融温度を有することが要求され、その差が30℃
以上であることが好ましい。さらには、該基材樹
脂とは非相溶性であることが好ましい。フイルム
用樹脂としては、例えばナイロン６、ナイロン６
６、ポリエステル、ポリフエニレンスルフイド、
ポリカーボネート、ポリアミド、トリブチレンテ
レフタレート、ポリプロピレンなどがある。基材
樹脂には。例えばポリプロピレン、ポリプロピレ
ンの共重合体、ABS樹脂、PVC樹脂、ポリエチ
レン、軟質PVC樹脂、変性ポリフエニレンオキ
サイドなどがある。これら基材樹脂とフイルム用
樹脂とはフイルム用樹脂の溶融温度が高ければど
のような組合わせであつてもよいが前記のように
フイルム用樹脂の溶融温度が30℃以上高い組合わ
せが好ましい。なお基材樹脂に軟質PVCを用い
る場合にはフイルム用樹脂にポリプロピレンを用
いるのがよい。 Materials for the metal powder or metal fiber include, for example, silver, copper, nickel, aluminum,
There are stainless steel, iron (soft magnetic iron), etc. The resin constituting the plastic strips and the base resin are required to have a higher melting temperature than the base resin so that they do not mix uniformly with the base resin under the molding temperature conditions when heated and kneaded. and the difference is 30℃
It is preferable that it is above. Furthermore, it is preferable that it is incompatible with the base resin. Examples of film resins include nylon 6 and nylon 6.
6, polyester, polyphenylene sulfide,
Examples include polycarbonate, polyamide, tributylene terephthalate, and polypropylene. For the base resin. Examples include polypropylene, polypropylene copolymers, ABS resin, PVC resin, polyethylene, flexible PVC resin, and modified polyphenylene oxide. These base resins and film resins may be used in any combination as long as the film resin has a high melting temperature, but as mentioned above, a combination in which the film resin has a melting temperature 30° C. or more is preferred. Note that when using soft PVC as the base resin, it is preferable to use polypropylene as the film resin.
本発明の組成物を作るには、まず、金属粉末も
しくは金属繊維をフイルム用樹脂と加熱し、混練
する。配合割合は、フイルム用樹脂100重量部に
対して、金属粉末もしくは金属繊維100〜900重量
部が適当である。混練物を押出ペレツトとした
後、0.5〜1.0mmの厚さのフイルムに調製する。こ
れを、さらに、既知の栽断・細片化手段により10
〜20mm程度の長さの細片とする。次いで、この細
片を基材樹脂100重量部に対して好ましくは80〜
400重量部そして金属粉末もしくは金属繊維を基
材樹脂100重量部に対して好ましくは40〜240重量
部の割合で混合する。こうして目的とする導電性
プラスチツク組成物を得る。フイルム細片は、こ
のように、金属粉末もしくは金属繊維と樹脂との
一体物であるから、混練されさらに押出機、射出
成形機、カレンダーロールなどの成形手段により
所望の形状に成形されるときに外力が加わつても
伸びる・まがるなどの変形を受けるだけで、折た
りちぎれたりすることがない。そのため基材樹脂
中には導電性回路が安定して存在することがで
き、そのうえ基材樹脂中にも金属粉末や金属繊維
が混入しているため、その結果得られる組成物の
導電性は非常に高いものとなる。しかもその導電
率にはバラツキがない。 To prepare the composition of the present invention, first, metal powder or metal fibers are heated and kneaded with a film resin. The appropriate blending ratio is 100 to 900 parts by weight of metal powder or metal fiber per 100 parts by weight of film resin. The kneaded product is made into extruded pellets, which are then prepared into a film having a thickness of 0.5 to 1.0 mm. This is then further cut to 10 pieces using known cutting and fragmentation methods.
Cut into strips with a length of ~20 mm. Next, this strip is preferably added in an amount of 80 to 100 parts by weight based on 100 parts by weight of the base resin.
400 parts by weight and metal powder or metal fibers are preferably mixed in a ratio of 40 to 240 parts by weight based on 100 parts by weight of the base resin. In this way, the desired conductive plastic composition is obtained. Since the film strip is an integrated product of metal powder or metal fiber and resin, it is kneaded and further molded into a desired shape by a molding means such as an extruder, injection molding machine, or calendar roll. Even if an external force is applied to it, it will only undergo deformation such as stretching or bending, but will not break or tear. Therefore, conductive circuits can stably exist in the base resin, and since metal powder and metal fibers are also mixed in the base resin, the resulting composition has extremely high conductivity. It will be expensive. Moreover, there is no variation in its conductivity.
実施例： 以下に本発明を実施例により詳細に説明する。Example: The present invention will be explained in detail below using examples.
なお部とあるのは重量部を意味する。 Note that parts refer to parts by weight.
実施例 １
ポリエチレンテレフタレート（PET）100部の
100メツシユの軟磁性鉄粉末117部を加え、290〜
300℃にて常法により混練押出機で混練しながら
厚さ0.5mm、幅70mmの押出シートを作製した。こ
れを既知の裁断手段により幅0.5mmそして長さ10
mmのフイルム細片に切断した。次に、変性ポリフ
エニレンオキサイド樹脂100部に100メツシユの銅
粉145部を加え常法により混練した。これに上記
のフイルム細片200部を加え240℃で混練ペレツト
を作製した。このペレツトを220〜240℃で射出成
形し、厚さ３mm・幅15cm・長さ15cmの板を作製し
た。この板の体積固有抵抗値は1.3×10-3Ω・cmで
あつた。Example 1 100 parts of polyethylene terephthalate (PET)
Add 117 parts of 100 mesh soft magnetic iron powder, 290 ~
An extruded sheet having a thickness of 0.5 mm and a width of 70 mm was prepared by kneading at 300° C. using a kneading extruder in a conventional manner. This was cut to a width of 0.5 mm and a length of 10 mm by known cutting means.
Cut into mm film strips. Next, 145 parts of 100 mesh copper powder was added to 100 parts of the modified polyphenylene oxide resin and kneaded by a conventional method. To this was added 200 parts of the above film strips and kneaded at 240°C to produce pellets. This pellet was injection molded at 220 to 240°C to produce a plate with a thickness of 3 mm, width of 15 cm, and length of 15 cm. The volume resistivity value of this plate was 1.3×10 -3 Ω·cm.
比較例 １
変性ポリフエニレンオキサイド100部に100メツ
シユの銅粉末150部を加え混練し、常法によりペ
レツトとした後成形した。その体積固有抵抗値は
2.4Ω・cmであつた。Comparative Example 1 150 parts of 100 mesh copper powder was added to 100 parts of modified polyphenylene oxide and kneaded, and the pellets were made into pellets by a conventional method and then molded. Its volume resistivity is
It was 2.4Ω・cm.
比較例 ２
実施例１で用いたのと同じ変性ポリフエニレン
オキサイド樹脂100部に実施例１で調製したフイ
ルム細片200部を加えて混練しペレツトとした後
実施例１と同様にして成形した。その体積固有抵
抗値は1.8×101Ω・cmであつた。Comparative Example 2 200 parts of the film strips prepared in Example 1 were added to 100 parts of the same modified polyphenylene oxide resin used in Example 1, kneaded to form pellets, and molded in the same manner as in Example 1. . Its volume resistivity value was 1.8×10 1 Ω·cm.
比較例 ３
変性ポリフエニレンオキサイド樹脂100部にビ
ビリ振動切削法で得た黄銅繊維（径0.08mm・長さ
５mm）200部を加えて混練し、ペレツトとした後
成形した。その体積固有抵抗値は1.1×102Ω・cm
であつた。Comparative Example 3 200 parts of brass fibers (diameter 0.08 mm, length 5 mm) obtained by the chatter vibration cutting method were added to 100 parts of modified polyphenylene oxide resin and kneaded to form pellets, which were then molded. Its volume resistivity value is 1.1×10 2 Ω・cm
It was hot.
発明の効果：
本発明の導電性プラスチツク組成物は、このよ
うに、金属粉末もしくは金属短繊維を含有した熱
可塑性プラスチツクフイルムの細片を、金属粉末
もしくは金属繊維とともに前記フイルムを構成す
る樹脂よりも低い溶融温度の基材樹脂に混合して
得られる。フイルム細片中の金属粉末や繊維は、
その周囲が樹脂でかためられているため、これが
基材樹脂に混練されそして所望の形状に成形され
ても、折れたりちぎれたりしない。金属粉末、繊
維含有フイルムはむしろ糸のように長く伸長され
る。Effects of the invention: In this way, the conductive plastic composition of the present invention allows the thin pieces of a thermoplastic plastic film containing metal powder or short metal fibers to be used together with the metal powder or metal fibers, rather than the resin constituting the film. It is obtained by mixing with a base resin having a low melting temperature. Metal powders and fibers in film strips are
Since its periphery is hardened with resin, it will not bend or tear even if it is kneaded with a base resin and molded into a desired shape. The metal powder and fiber-containing film is rather elongated like a thread.
その結果、これらフイルム細片は基材樹脂中で
効果的な導電性回路を構成する。したがつて得ら
れる組成物の導電性は極めて高い。さらに基材樹
脂中にも金属粉末もしくは金属短繊維が混入され
ているので、フイルム細片と共にそこに形成され
る導電回路は著しく安定して存在する。その導電
率はしかも均一である。また上記金属粉末もしく
は金属繊維およびフイルム細片の基材樹脂中への
混練も従来からのスクリユーなどの混練装置を用
いて簡単に行なわれる。 As a result, these film strips constitute an effective conductive circuit within the base resin. Therefore, the electrical conductivity of the resulting composition is extremely high. Furthermore, since metal powder or short metal fibers are mixed in the base resin, the conductive circuit formed therein together with the film strips exists extremely stably. Its conductivity is also uniform. Further, kneading of the metal powder or metal fibers and film pieces into the base resin can be easily carried out using a conventional kneading device such as a screw.
Claims (1)
塑性プラスチツクフイルムの細片と金属粉末もし
くは金属短繊維とを前記フイルムを構成する樹脂
よりも低い溶融温度を有する熱可塑性基材樹脂に
混合してなる導電性プラスチツク組成物。 ２ 前記プラスチツクフイルムを構成する樹脂
は、その溶融温度が前記基材樹脂より30℃以上高
い特許請求の範囲第１項に記載の組成物。 ３ 前記プラスチツクフイルム細片はプラスチツ
クフイルム用樹脂100重量部に対し金属粉末もし
くは金属短繊維を100〜900重量部の割合で含有す
る特許請求の範囲第１項に記載の組成物。 ４ 前記プラスチツクフイルム細片が前記基材樹
脂100重量部に対し80〜400重量部の割合で含まれ
る特許請求の範囲第１項に記載の組成物。 ５ 前記基材樹脂に直接混合される金属粉末もし
くは金属繊維は、該基材樹脂100重量部に対し40
〜240重量部含有される特許請求の範囲第１項に
記載の組成物。[Scope of Claims] 1. A thermoplastic base resin having a melting temperature lower than that of the resin constituting the film, and a thermoplastic film strip containing metal powder or metal short fibers and the metal powder or metal short fibers. A conductive plastic composition made by mixing with. 2. The composition according to claim 1, wherein the resin constituting the plastic film has a melting temperature 30°C or more higher than the base resin. 3. The composition according to claim 1, wherein the plastic film strip contains 100 to 900 parts by weight of metal powder or short metal fibers to 100 parts by weight of plastic film resin. 4. The composition according to claim 1, wherein the plastic film strip is contained in an amount of 80 to 400 parts by weight based on 100 parts by weight of the base resin. 5 The metal powder or metal fiber directly mixed with the base resin is 40 parts by weight per 100 parts by weight of the base resin.
240 parts by weight of the composition according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18326683A JPS6072936A (en) | 1983-09-30 | 1983-09-30 | Electroconductive plastic composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18326683A JPS6072936A (en) | 1983-09-30 | 1983-09-30 | Electroconductive plastic composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6072936A JPS6072936A (en) | 1985-04-25 |
| JPH0354711B2 true JPH0354711B2 (en) | 1991-08-21 |
Family
ID=16132653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18326683A Granted JPS6072936A (en) | 1983-09-30 | 1983-09-30 | Electroconductive plastic composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6072936A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6377971A (en) * | 1986-09-22 | 1988-04-08 | Idemitsu Petrochem Co Ltd | Thermoplastic resin composition containing stainless steel fiber |
| JP2603511B2 (en) * | 1988-04-15 | 1997-04-23 | 昭和電工株式会社 | Conductive plastic |
| JP2657522B2 (en) * | 1988-07-06 | 1997-09-24 | 東海ゴム工業株式会社 | Manufacturing method of conductive roll sleeve |
-
1983
- 1983-09-30 JP JP18326683A patent/JPS6072936A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6072936A (en) | 1985-04-25 |
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