JPS608335A - Electrically conductive resin composition - Google Patents

Electrically conductive resin composition

Info

Publication number
JPS608335A
JPS608335A JP11776583A JP11776583A JPS608335A JP S608335 A JPS608335 A JP S608335A JP 11776583 A JP11776583 A JP 11776583A JP 11776583 A JP11776583 A JP 11776583A JP S608335 A JPS608335 A JP S608335A
Authority
JP
Japan
Prior art keywords
carbon black
resin composition
resin
content
electrically conductive
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.)
Granted
Application number
JP11776583A
Other languages
Japanese (ja)
Other versions
JPH0534377B2 (en
Inventor
Hiroshi Takeda
博 武田
Hidetaka Ozaki
尾崎 英高
Hisashi Yamada
久志 山田
Masaaki Mizuta
水田 正明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lion Akzo Co Ltd
Original Assignee
Lion Akzo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lion Akzo Co Ltd filed Critical Lion Akzo Co Ltd
Priority to JP11776583A priority Critical patent/JPS608335A/en
Publication of JPS608335A publication Critical patent/JPS608335A/en
Publication of JPH0534377B2 publication Critical patent/JPH0534377B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a resin composition having excellent electrical conductivity, with little lowering in mechanical strength and increase in viscosity, by compounding a thermoplastic resin with a specific carbon black. CONSTITUTION:100pts.wt. of a thermoplastic resin is compounded with preferably 4-20pts.wt. of an electrically conductive carbon black having a DBP absorption of >=400ml/100g, preferably 400-600ml/100g and a heavy metal content of <=500ppm, preferably iron content of <=250ppm, vanadium content of <=100ppm and nickel content of <=50ppm.

Description

【発明の詳細な説明】 〔技術分野〕 本発明は熱可塑性樹脂にカーボンブラックを配合した導
電性組成物の改良に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an improvement in a conductive composition comprising a thermoplastic resin mixed with carbon black.

[従来技術〕 従来、熱可塑性樹脂にカーボンブラックを配合した導電
性樹脂組成物は知られている。この場合、カーボンブラ
ックとしては、通常、アセチレンブラック、サーマルブ
ラック、ファーネスブラック等が用いられており、その
添加量に応じた導電性を示ず樹脂組成物を与えるが9、
高い導電性の組成物を得るには、相当多量に配合する必
要がある。
[Prior Art] Conventionally, conductive resin compositions in which carbon black is blended with a thermoplastic resin are known. In this case, as carbon black, acetylene black, thermal black, furnace black, etc. are usually used, and the resin composition does not show conductivity depending on the amount added, but 9,
In order to obtain a highly conductive composition, it is necessary to incorporate it in a fairly large amount.

従って、従来のカーボンブラックを用いて高導電性の樹
脂組成物を得ようとすると、431脂の持つf=fH々
のすぐれた特性がJliわれるという欠点がある。即ち
、従来のカーボンブラックでは、多機の配合により所望
の導電性を得ることができるものの、mられる樹脂組成
物は、その機械的強度が低下すると共に、粘性が著しく
増加して溶融流動性が低ドし、押出しや射出成形加工の
著しく悪いものとtI・す、実用性の著しく劣ったもの
になるという欠点があった。一方、導電性の高いカーボ
ンブラックとして、ケッチェンブラックEC(ライオン
アクゾ■社製)が知られており、このものを配合した樹
脂組成物は高導電性を与えるが、しかしながら、このも
のは樹脂に対する分散性が悪いという欠点を有している
Therefore, when trying to obtain a highly conductive resin composition using conventional carbon black, there is a drawback that the excellent f=fH characteristics of 431 resin are lost. That is, with conventional carbon black, desired conductivity can be obtained by blending multiple components, but the resulting resin composition has a decrease in mechanical strength, a marked increase in viscosity, and poor melt fluidity. It has the drawbacks of low deformation, extremely poor extrusion and injection molding processing, and extremely poor practicality. On the other hand, Ketjenblack EC (manufactured by Lion Akzo Corporation) is known as a highly conductive carbon black, and a resin composition containing this material provides high conductivity. It has the disadvantage of poor dispersibility.

〔目 的〕〔the purpose〕

本発明は、従来のカーボンブラック配合樹脂の場合とは
異なり、高導電性でありながら樹脂のh械的強度の低下
が少なく、かつ押出しや射出成形加工の容易な導電性樹
脂組成物を提供することを1」的とする。
The present invention provides a conductive resin composition that is highly conductive, has little decrease in the mechanical strength of the resin, and is easy to process by extrusion or injection molding, unlike conventional resins containing carbon black. This is the 1st target.

〔構 成〕〔composition〕

即ち、本発明によれば、熱可塑性樹脂にカーボンブラッ
クを配合した組成物において、該カーボンブラックとし
て、DBP吸油量が400m Q / 100 g以−
ヒてかつ重金属含有量゛が500ppm以下の導電性カ
ーボンブラックを用いることを特徴とする導電性樹脂組
成物が提供される。
That is, according to the present invention, in a composition in which carbon black is blended with a thermoplastic resin, the carbon black has a DBP oil absorption of 400 m Q / 100 g or more.
There is provided a conductive resin composition characterized by using conductive carbon black having a heavy metal content of 500 ppm or less.

本発明においては、カーボンブラックとして、1)+3
11吸油爪が400 m Q / 100 g以上でか
つ重金属含量が500 P P B以下の導電性カーボ
ンブラックを用いることを特徴とするが、このようなカ
ーボンブラックは樹脂に棟込んだ場合に、その組成物に
通常のカーボンブラックに比して、より高い導電性を与
える。
In the present invention, as carbon black, 1)+3
11 is characterized by using conductive carbon black with an oil-absorbing claw of 400 m Q / 100 g or more and a heavy metal content of 500 P P B or less, but when such carbon black is embedded in a resin, its Provides the composition with higher electrical conductivity than regular carbon black.

本発明で用いるカーボンブラックにおいては、そ(7)
Ilnll吸油量は/I00 IT+ Q 、/ 10
0 g以」二であるが、その吸油量がこれより小さくな
ると、導電性の高い樹脂組成物を得るには多喰配合しな
ければならず、その分樹脂の特性が損われる傾向がある
。本発明で用いるカーボンブラックにおいては、l1n
l+吸油量の上限は特に制約さ輛ないが、¥11造上の
容易さからは700m l)、 / 1.00 g以下
が適当であり、本発明の場合、そのDBP吸油量は、殊
に、400〜600m Q / 100 gの範囲に規
定するのが好ましい。本発明で用いるカーボンブラック
においては、前記1)BP吸油量の規定と関連して、そ
の重金属含有量を500ppm以下に保持する。この場
合、重金属としては、鉄、バナジウム、マンガン、ニッ
ケル、クロム、銅、コバルト等があるが本発明の場合、
それらの重金属総合有量を500ppm以下、より?I
ましくは、鉄分250ppm以下、バナジウム分110
0pp以下、ニッケル分50ppm以下に規定する。カ
ーボンブラック中の重金属含有量が500ppmより多
くなると、樹脂が重金属イオンの影響を受け、樹脂にカ
ーボンブラックを紳込んだ際のカーボンブラックの勺1
F2性が悪くなり、樹脂組成物の成形扉]二性が著しく
悪くなる。
In the carbon black used in the present invention, (7)
The oil absorption amount is /I00 IT+ Q, /10
However, if the oil absorption amount is smaller than this, a large amount must be added in order to obtain a highly conductive resin composition, and the properties of the resin tend to be impaired accordingly. In the carbon black used in the present invention, l1n
There is no particular restriction on the upper limit of the DBP oil absorption amount, but from the viewpoint of ease of production, an appropriate value is 700 ml/1.00 g or less, and in the case of the present invention, the DBP oil absorption amount is particularly , preferably in the range of 400 to 600 mQ/100 g. In the carbon black used in the present invention, the heavy metal content is maintained at 500 ppm or less in relation to the above-mentioned 1) regulation of BP oil absorption. In this case, heavy metals include iron, vanadium, manganese, nickel, chromium, copper, cobalt, etc. In the case of the present invention,
Is the total amount of heavy metals less than 500 ppm? I
Preferably, iron content is 250 ppm or less, vanadium content is 110 ppm or less.
The nickel content is specified to be 0 ppm or less, and the nickel content to be 50 ppm or less. If the heavy metal content in carbon black exceeds 500 ppm, the resin will be affected by the heavy metal ions, and the carbon black's strength will decrease when carbon black is added to the resin.
The F2 properties of the molded door of the resin composition deteriorate significantly.

なお、本願明細書でいうDBP吸油量は、A S 1’
 M IJ2414−79に規定された吸油量を意味す
る。
In addition, the DBP oil absorption amount referred to in this specification is A S 1'
MI means the oil absorption amount specified in IJ2414-79.

本発明で用いるバ!i可塑性樹脂としては従来公知の種
々のものがあり、特に制約されないが、その具体例とし
ては、例えば、低、中及び高密度ポリスチレン、綿状低
密度ポリエチレン、ポリプロピ1ノン、エチレンープロ
ピレン共重合体、エチレン−it;酸ビニル共重合体、
エチ1ノンーアクリル酸エステル共用合体、アクリロニ
1ヘリループタジェンースヂ1ノン五元共重合体、ポリ
スチレン、アクリロニトリル−スチレン共重合体、二(
・リルゴム、ブタジェンゴム、スチレン−ブタジェンゴ
ム、エチレンーブロビレンージェンゴム、シリコンゴム
、熱rif塑性ポリウレタン樹脂、ポリアミド樹脂、ポ
リエステル樹脂、ポリカーボネート、ポリ塩化ビニル、
ポリアセタール樹脂等が挙げられる。
The bar used in the present invention! i There are various conventionally known plastic resins, and there are no particular restrictions, but specific examples include low, medium and high density polystyrene, cotton-like low density polyethylene, polypropylene 1-non, and ethylene-propylene copolymer. combination, ethylene-it; acid-vinyl copolymer,
Ethyl 1-non-acrylic acid ester copolymer, acryloni-1 heli-rubutadiene-1-non quinary copolymer, polystyrene, acrylonitrile-styrene copolymer, di(
・Ryl rubber, butadiene rubber, styrene-butadiene rubber, ethylene-brobylene-diene rubber, silicone rubber, thermo-rif plastic polyurethane resin, polyamide resin, polyester resin, polycarbonate, polyvinyl chloride,
Examples include polyacetal resin.

本発明において、樹脂に対するカーボンブラックの削自
爪は、使用する樹脂の種類や使用目的により異なるが、
(へ端に少なければ導電性付与効果が少なく、逆に多す
ぎると、その添加効果は飽和してしまい、また樹脂への
均−株込みが困難になるため、樹脂組成物100重量部
に対し1通常、2〜30重景部重量ましくは4〜20重
爪部にするのがよい。また、本発明の組成物においては
、熱可塑性樹脂に普通に用いられている酸化防止剤、酎
πへ安定剤、滑剤、難燃剤等の助剤を適宜用いることが
できる。
In the present invention, the carbon black self-sharpening claw for resin varies depending on the type of resin used and the purpose of use, but
(If there is too little at the edge, the effect of imparting conductivity will be small; if it is too much, the effect of adding it will be saturated, and it will be difficult to incorporate it evenly into the resin. 1. Generally, it is preferable to use 2 to 30 parts by weight or 4 to 20 parts by weight.In addition, the composition of the present invention may contain antioxidants commonly used in thermoplastic resins. Auxiliary agents such as stabilizers, lubricants, and flame retardants can be used as appropriate for π.

熱可塑性樹脂にカーボンブラックを配合するためには、
通常の方法、例えば、パンバリーミ六り−、インターミ
ックス等のバッチ式混控(′笥及びl11(続混棟機を
用いる方法により行うことができる。
In order to blend carbon black into thermoplastic resin,
It can be carried out by a conventional method, for example, a method using a batch-type mixing machine such as Panbury Mixer or Intermix.

〔効 果〕〔effect〕

本発明においては、少ないカーボンブラック配合量で高
い導電性の樹脂組成物を得ることができるので、従来の
導電性樹脂組成物の場合とは異なり、その機械的強度及
び成形加」二性はすぐれている。従って、本発明の導電
性樹脂組成物は種々の用途に適用することができ1例え
ば、高電圧ゲーブル、イグニションコード、面発熱体、
面ス・(ソチ等の導電性材料の他、電磁波障害を避ける
必要のある電子機器やIC等の包装材料、さらにビデ−
fAデスク成形用材料、永久帯電防止性材料等への応用
等、多くの分野において利用することができる。
In the present invention, a highly conductive resin composition can be obtained with a small amount of carbon black, so unlike conventional conductive resin compositions, its mechanical strength and moldability are excellent. ing. Therefore, the conductive resin composition of the present invention can be applied to various uses, such as high voltage cables, ignition cords, surface heating elements,
In addition to conductive materials such as masks, packaging materials for electronic devices and ICs that need to avoid electromagnetic interference, and even bidets.
It can be used in many fields, such as application to fA desk molding materials, permanent antistatic materials, etc.

〔実施例〕〔Example〕

次に本発明を実施例によりさらに詳細に説明する。実施
例で用いた単位r%」は重量%を表わす。
Next, the present invention will be explained in more detail with reference to Examples. The unit "r%" used in the examples represents weight %.

体積固有抵抗は日本ゴム協会規4’8SRIS 230
1により、アイゾツトWIt撃強度はJIS K−71
10記載の方法により規定した。
Volume resistivity is 4'8SRIS 230 according to Japan Rubber Association regulations.
According to 1, Izot WIt impact strength is JIS K-71
It was defined by the method described in 10.

また、実施例において用いたカーボンブラックのfil
i類及び性状を第1表に示す。第1表において、Cは比
較品(ライオンアクゾ製、商品名ケッチェンブラックI
EC)である。
In addition, the carbon black fil used in the examples
Class i and properties are shown in Table 1. In Table 1, C is a comparative product (manufactured by Lion Akzo, trade name: Ketjen Black I).
EC).

第 1 表 実施例1 各種の熱可塑性樹脂と第1表に記載のカーボンブラック
をそれぞれ所定員、酸化防止剤(ヂバガイギー製、商品
名イルガノックス1010)1.0’JI!、及び滑剤
(ライオンアクゾM1.商品名アーモワックスビBSパ
ウダー)0.5%をショーインターミックス([1立田
浦製に1型)で混練した後、8インチの2木ロールミル
(四相I 機EQ )及び角ペレタイザー(朋来鉄工所
製、GIIP型)を用いてペレットにした。
Table 1 Example 1 Various thermoplastic resins and the carbon black listed in Table 1 were added to the specified amounts, and an antioxidant (manufactured by Ziba Geigy, trade name Irganox 1010) was used at 1.0'JI! , and 0.5% of lubricant (Lion Akzo M1. trade name Armowax BiBS Powder) were kneaded in a show intermix (type 1 made by Tatsutaura), and then milled in an 8-inch two-wood roll mill (four-phase I machine). EQ) and a square pelletizer (manufactured by Horai Tekkosho, GIIP type) to make pellets.

このペレッ1へを1501tg/cm2の圧力で150
 X 250 XIIIIII+厚ノフレス板(A)、
マタ+t、 射出成形L% (84M Fl脂工業製、
TS 150型)により80 x 70 X 3mm1
’iの平板(B)に成形し、その体積固有抵抗を測定し
た。
150 to this pellet 1 at a pressure of 1501 tg/cm2
X 250
Mata + t, injection molding L% (84M Fl fat industry,
TS 150 type) 80 x 70 x 3mm1
'i flat plate (B), and its volume resistivity was measured.

その結果を第2表に示す。The results are shown in Table 2.

第2表(1) 第2表(II) (注)熱可塑性樹脂の記号の説明 110PE・・高密度ポリエチレン(層化成製、商品名
サンチック5360) LDPE・・低密度ポリエチレン(三菱油化製、商品名
ユカロンZF −30) EVA・・・エチレン−nト酸ビニル共重合体(三菱油
化製、商品名ユカロンIEVA 5011)ABS・・
・ABS樹1m(三菱モンケンI・化成製、商品名タフ
レックスN−710) ナイロン・・ナイロン66(デュポン剰、商品名 リ1
イテル5T801) 実施例2 ポリ塩化ビニル(に1本ゼオン製、商品名 ピ2]ン1
O−3FP)50.5%、可塑剤(大へ化学!!1 、
商品名1’ (+ 1’ II )40%、第1表に記
載したカーボンブラック874、安定則1.(3%及び
滑剤0.5%を実施例1と同様にしてペレット化し、次
いで射出成形により80 X 70 X 3WIIW厚
の平板をつくり、その体積固有抵抗を測定した。その結
果を第3表に示す。
Table 2 (1) Table 2 (II) (Note) Explanation of symbols for thermoplastic resins 110PE: High-density polyethylene (manufactured by Layered Chemical Co., Ltd., trade name Santic 5360) LDPE: Low-density polyethylene (manufactured by Mitsubishi Yuka Co., Ltd., product name Santic 5360) (Product name: Yucalon ZF-30) EVA... Ethylene-n-vinyl trichloride copolymer (manufactured by Mitsubishi Yuka, trade name: Yucalon IEVA 5011) ABS...
・ABS wood 1m (Mitsubishi Monken I, manufactured by Kasei, product name Toughflex N-710) Nylon...Nylon 66 (DuPont surplus, product name Li1
Itel 5T801) Example 2 Polyvinyl chloride (manufactured by Zeon, trade name P2]n1)
O-3FP) 50.5%, plasticizer (Oihe Kagaku!!1),
Product name 1' (+ 1' II) 40%, carbon black 874 listed in Table 1, stability rule 1. (3% and lubricant 0.5% were pelletized in the same manner as in Example 1, and then a flat plate of 80 x 70 x 3 WIIW thickness was made by injection molding, and its volume resistivity was measured. The results are shown in Table 3. show.

第 3 表 実施例3 AIIS(三菱モレサン1〜化成製、タフレックスN−
710)と第1表に記載したカーボンブラックの配合割
合を変えて、体積固有抵抗とアイゾッ1〜衝撃強度との
関係を測定した。その結果を第4表に示す。
Table 3 Example 3 AIIS (Mitsubishi Moresan 1~Kasei Co., Ltd., Tufflex N-
710) and the carbon black listed in Table 1, the relationship between volume resistivity and Izod 1 to impact strength was measured. The results are shown in Table 4.

第 4 う1 実施例4 110PE(旭化成製、サンチックS −360)と第
11)に記載したカーボンブラックとの配合割合を恋え
゛C1実施例1と同様にしてペレッ1〜をつくり、次い
でそのペレッ1−を温度245℃、1.10川和/cm
2の圧力で12秒間、55℃に保温した渦巻状金型に射
出し1、その金型に入り込んだ長さを測定した。同時に
体積固有抵抗を測定し、両者の関係をめた。
No. 4 U1 Example 4 Pellets 1 to 1 were prepared in the same manner as in Example 1, with the blending ratio of 110PE (manufactured by Asahi Kasei, Santic S-360) and the carbon black described in No. 11) being the same as in Example 1. Pellet 1-temperature 245℃, 1.10 wa/cm
The sample was injected into a spiral mold that was kept at 55° C. for 12 seconds at a pressure of 1, and the length of the material penetrated into the mold was measured. At the same time, the volume resistivity was measured to determine the relationship between the two.

その結果を第5表に示す。The results are shown in Table 5.

第 5 表 以上の結果から、本発明の場合は、低められたカーボン
ブラック配合量で導電性が高く、かつ機械的強度及び成
形加工性のよい樹脂組成物を得ることができる。
From the results shown in Table 5 and above, in the case of the present invention, a resin composition with high conductivity, good mechanical strength and moldability can be obtained with a reduced carbon black content.

特許出願人 ライオン・アクゾ株式会社代理人弁理士 
池浦敏明
Patent applicant Lion Akzo Co., Ltd. Representative Patent Attorney
Toshiaki Ikeura

Claims (1)

【特許請求の範囲】[Claims] (1) ifi可塑性樹脂にカーボンブラックを配合し
た第11成物において、該カーボンブラックとして、1
)1111吸油量が400m O,/ 100 g以上
でかつ重金属含有量が500ppm以下の導電性カーボ
ンブラックを用いることを特徴とする導電性樹脂組成物
(1) In the eleventh composition in which carbon black is blended with ifi plastic resin, as the carbon black, 1
) A conductive resin composition characterized by using conductive carbon black having a 1111 oil absorption of 400 mO,/100 g or more and a heavy metal content of 500 ppm or less.
JP11776583A 1983-06-28 1983-06-28 Electrically conductive resin composition Granted JPS608335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11776583A JPS608335A (en) 1983-06-28 1983-06-28 Electrically conductive resin composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11776583A JPS608335A (en) 1983-06-28 1983-06-28 Electrically conductive resin composition

Publications (2)

Publication Number Publication Date
JPS608335A true JPS608335A (en) 1985-01-17
JPH0534377B2 JPH0534377B2 (en) 1993-05-21

Family

ID=14719765

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11776583A Granted JPS608335A (en) 1983-06-28 1983-06-28 Electrically conductive resin composition

Country Status (1)

Country Link
JP (1) JPS608335A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031539A (en) * 1983-07-29 1985-02-18 Toshiba Corp Electrically conductive organic composition having ptc characteristics
JPS6281450A (en) * 1985-10-04 1987-04-14 Toray Ind Inc Polyphenylene sulfide resin composition
US4971726A (en) * 1987-07-02 1990-11-20 Lion Corporation Electroconductive resin composition
KR20190048092A (en) 2017-10-30 2019-05-09 주식회사 엘지화학 Conductive polyarylene sulfide resin composition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172555A (en) * 1981-04-17 1982-10-23 Matsushita Electric Ind Co Ltd Disk type recording medium and its manufacture
JPS59191153A (en) * 1983-04-14 1984-10-30 Victor Co Of Japan Ltd Recording medium of high density information signal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172555A (en) * 1981-04-17 1982-10-23 Matsushita Electric Ind Co Ltd Disk type recording medium and its manufacture
JPS59191153A (en) * 1983-04-14 1984-10-30 Victor Co Of Japan Ltd Recording medium of high density information signal

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031539A (en) * 1983-07-29 1985-02-18 Toshiba Corp Electrically conductive organic composition having ptc characteristics
JPS6281450A (en) * 1985-10-04 1987-04-14 Toray Ind Inc Polyphenylene sulfide resin composition
US4971726A (en) * 1987-07-02 1990-11-20 Lion Corporation Electroconductive resin composition
KR20190048092A (en) 2017-10-30 2019-05-09 주식회사 엘지화학 Conductive polyarylene sulfide resin composition

Also Published As

Publication number Publication date
JPH0534377B2 (en) 1993-05-21

Similar Documents

Publication Publication Date Title
EP0297888B1 (en) Electroconductive resin composition
EP0059456A2 (en) Flame-retardant thermoplastic molding compounds of high electroconductivity
JPH0238109B2 (en)
JPS61155451A (en) Electrically conductive resin composition
JPH0416500B2 (en)
JPH0329816B2 (en)
JPS60124654A (en) Electrically conductive resin composition
JPS608335A (en) Electrically conductive resin composition
JPS624749A (en) Blend type electrically conductive composite material
JP3370207B2 (en) Conductive polystyrene resin composition
JPH0395803A (en) Conductive resin composition for shielding electromagnetic wave
JPH02113068A (en) Electrically conductive thermoplastic resin composition
JPH0247500B2 (en)
JPS61101554A (en) Preparation of electrically conductive resin composition
JPH0126617B2 (en)
JPH0468349B2 (en)
JPS61293241A (en) Electrically conductive elastomer composition containing vulcanized rubber powder
JPS58117239A (en) High electroconductivity flame-retardant thermoplastic forming composition
JPS60173027A (en) Electroconductive polyolefin resin composition
JPS59115357A (en) Electrically conductive resin composition
JPH038385B2 (en)
JPH0245654B2 (en)
JPH10251466A (en) Flame-retardant polyolefin resin composition and its molded item
JP3313459B2 (en) Conductive polyolefin masterbatch
JPH056587B2 (en)