JPH02169636A - Production of antistatic resin molding - Google Patents
Production of antistatic resin moldingInfo
- Publication number
- JPH02169636A JPH02169636A JP32511088A JP32511088A JPH02169636A JP H02169636 A JPH02169636 A JP H02169636A JP 32511088 A JP32511088 A JP 32511088A JP 32511088 A JP32511088 A JP 32511088A JP H02169636 A JPH02169636 A JP H02169636A
- Authority
- JP
- Japan
- Prior art keywords
- resin molded
- antistatic
- heat
- molded product
- irradiation
- 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.)
- Pending
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 26
- 239000011347 resin Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000000465 moulding Methods 0.000 title abstract description 7
- 238000010884 ion-beam technique Methods 0.000 claims abstract description 23
- 229920006015 heat resistant resin Polymers 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 6
- 125000003118 aryl group Chemical group 0.000 claims abstract description 3
- 125000000623 heterocyclic group Chemical group 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 11
- 230000001678 irradiating effect Effects 0.000 abstract description 5
- 229920001721 polyimide Polymers 0.000 abstract description 3
- 230000001133 acceleration Effects 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 17
- 230000005611 electricity Effects 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 239000002216 antistatic agent Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- 239000012190 activator Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 239000004640 Melamine resin Substances 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 239000004697 Polyetherimide Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 229920001230 polyarylate Polymers 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920001601 polyetherimide Polymers 0.000 description 2
- -1 primary amine salt Chemical class 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は給紙用ローラなどの帯電防止が必要な部材に使
用される帯電防止樹脂成形品の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing an antistatic resin molded product used for members such as paper feed rollers that require antistatic properties.
〈従来の技術と発明が解決しようとする問題点〉各種の
樹脂成形品は軽くて機械的性質や加工性にすぐれている
という利点を有する反面、静電気を帯びやすいために、
静電気の蓄積により成形加工時の生産性が低下したり、
あるいは静電気のスパークによる雑音の発生、可燃物へ
の引火といった、種々の静電気障害がひき起こされると
いう欠点があった。<Problems to be solved by conventional technology and the invention> Various resin molded products have the advantage of being lightweight and have excellent mechanical properties and workability, but on the other hand, they are easily charged with static electricity.
Productivity during molding may decrease due to the accumulation of static electricity,
Another disadvantage is that various static electricity problems are caused, such as generation of noise due to static electricity sparks and ignition of combustible materials.
このため、従来より種々の帯電防止方法が提案されてお
り、例えば導電性物質を導入したり、帯電防止剤を樹脂
成形品の素材に練り込んだりするなどの方法が提案され
ている（■大成社、昭和５９年１月３０日発行の「プラ
スチック配合剤−基礎と応用」２６５〜２７Ｂ頁を参照
）。前記導電性物質を導入する方法は、金属粉、カーボ
ン等の導電性物質の微細粒子をプラスチックなどに多量
に配合して導電性を付与するものである。また、帯電防
止剤を樹脂成形品の素゛材に練り込む方法は、第１級ア
ミン塩（商品名セテタミン）などのカチオン系活性剤、
硫酸化油（ロート油等）などのアニオン系活性剤、商品
名アミボールＤなどの両性活性剤を樹脂に練り込み成形
加工して帯電防止効果を与えるものである。For this reason, various antistatic methods have been proposed in the past, such as introducing conductive substances or kneading antistatic agents into the material of resin molded products (Taisei (See pages 265-27B of ``Plastic Compounds - Basics and Applications'', published by Co., Ltd., January 30, 1980). The method for introducing a conductive substance is to add a large amount of fine particles of a conductive substance such as metal powder or carbon to a plastic or the like to impart conductivity. In addition, the method of kneading the antistatic agent into the raw material of the resin molded product is to use a cationic activator such as a primary amine salt (trade name: Cetetamine),
An anionic activator such as sulfated oil (funnel oil, etc.) or an amphoteric activator such as Amibol D (trade name) is kneaded into a resin and molded to provide an antistatic effect.
しかしながら、これらの方法はいずれも樹脂成形品の内
部に異種物質を混入させる方法であるために、成形品の
機械的強度を低下させたり、成形加工が困難になるなど
の問題があった。However, since all of these methods involve mixing different substances into the resin molded product, there are problems such as lowering the mechanical strength of the molded product and making molding difficult.
一方、帯電防止剤を樹脂成形品の表面に塗布する方法も
あるが、帯電防止効果の持続時間が短いという問題があ
った。On the other hand, there is a method of applying an antistatic agent to the surface of a resin molded product, but there is a problem that the antistatic effect lasts only a short time.
このような従来の問題を排除し、樹脂成形品の表面に導
電性を付与して帯電防止を図るために、熱可塑性樹脂成
形品の表面にイオンビームを照射（注入）することが特
開昭６２−７４８３３号公報に開示されている。しかし
ながら、この公報には、熱可塑性樹脂成形品にイオンを
照射するにあたってのイオンのエネルギ量や照射量につ
いては何らの開示もなされていない。これは、同公報で
は、塩化ビニル系樹脂、ポリエチレン等の熱可塑性樹脂
成形品を対象としているために、このものに導電性を付
与するに足るイオンビームを照射すると、このイオンの
エネルギで成形品の温度が上昇し、変形、劣化等が生じ
ることから、具体的なエネルギ量や照射量を開示できな
かったものと考えられる。換言すれば、樹脂の熱劣化の
問題が解消されない限りイオンビームの照射による樹脂
成形品の導電化は達成できないといえる。In order to eliminate these conventional problems and to impart conductivity to the surface of a resin molded product to prevent static electricity, Japanese Patent Application Laid-Open No. 2002-2013 (Sho) proposed that the surface of a thermoplastic resin molded product be irradiated (injected) with an ion beam. It is disclosed in Japanese Patent No. 62-74833. However, this publication does not disclose anything about the energy amount or irradiation amount of ions when irradiating a thermoplastic resin molded article with ions. This is because the publication targets thermoplastic resin molded products such as vinyl chloride resin and polyethylene, so if this material is irradiated with an ion beam sufficient to impart conductivity, the energy of these ions will be used to mold the molded product. It is thought that the specific amount of energy and irradiation amount could not be disclosed because the temperature of the device would rise, causing deformation, deterioration, etc. In other words, it can be said that unless the problem of thermal deterioration of the resin is resolved, it will not be possible to make the resin molded product conductive by ion beam irradiation.
〈発明の目的〉
本発明は、イオンビームの照射によって、樹脂成形品の
物性等を低下させることなく、すぐれた帯電防止効果を
長期間にわたって発揮する帯電防止樹脂成形品の製造方
法を提供することを目的とする。<Objective of the Invention> The present invention provides a method for producing an antistatic resin molded article that exhibits excellent antistatic effects over a long period of time without degrading the physical properties of the resin molded article by irradiation with an ion beam. With the goal.
く問題点を解決するための手段および作用〉本発明の帯
電防止樹脂成形品の製造方法は、耐熱性樹脂成形品の表
面に０．２〜５０ ＭｅＶのイオンビームをｌＸｌ０Ｉ
４〜１×１０１８ｃｍ−２の照射量で照射して導電性を
付与するものである。Means and operation for solving the problems> The method for producing an antistatic resin molded product of the present invention includes applying an ion beam of 0.2 to 50 MeV to the surface of a heat-resistant resin molded product.
Conductivity is imparted by irradiation with a dose of 4 to 1×10 18 cm −2 .
このように高エネルギのイオンビームを照射することに
よって耐熱性樹脂成形品の表面に導電性が付与されるの
は、樹脂が炭化されたり、ドーピングにより樹脂が部分
酸化・還元されるためであると推測される。The reason why conductivity is imparted to the surface of heat-resistant resin molded products by irradiation with high-energy ion beams is that the resin is carbonized or partially oxidized and reduced by doping. Guessed.
このとき、本発明では樹脂成形品として耐熱性のものを
使用したため、高いエネルギでイオンビームを照射し温
度が上昇したとしても、容易に熱劣化をひき起こすこと
がない。従って、樹脂成形品の物性等を低下させること
なく、表面に高い導電性を付与することができ、すぐれ
た帯電防止効果が得られる。しかも、本発明ではその帯
電防止効果を長期間にわたって持続させることができる
。At this time, in the present invention, since a heat-resistant resin molded product is used, even if the temperature rises due to ion beam irradiation with high energy, thermal deterioration does not easily occur. Therefore, high conductivity can be imparted to the surface without degrading the physical properties of the resin molded article, and an excellent antistatic effect can be obtained. Moreover, in the present invention, the antistatic effect can be maintained for a long period of time.
本発明において使用される前記耐熱性樹脂成形品は、イ
オンビームの照射時に発生する約１５０〜３００℃の温
度に耐えうる耐熱性を有するものであるかぎり特に材質
が制限されるものではないが、分子中に芳香族環または
複素環を有するものを使用するのが高い導電性を付与す
るうえで好ましい。The material of the heat-resistant resin molded product used in the present invention is not particularly limited as long as it has heat resistance that can withstand temperatures of about 150 to 300°C generated during ion beam irradiation, but It is preferable to use a compound having an aromatic ring or a heterocycle in its molecule in order to impart high conductivity.
このような耐熱性樹脂としては、例えばポリイミド、ボ
リアリレート、ポリエーテルエーテルケトン（ＰＥＥＫ
）、ポリエーテルイミド、ポリエーテルスルホン、メラ
ミン樹脂、フェノール樹脂などがあげられる。Examples of such heat-resistant resins include polyimide, polyarylate, and polyetheretherketone (PEEK).
), polyetherimide, polyether sulfone, melamine resin, phenol resin, etc.
この耐熱性樹脂成形品に導電性を付与するために照射す
るイオンビームは加速電圧が０．２〜５０Ｍｅｖ、好ま
しくは０ 、 ２〜３ ＭｅＶで、照射量がＩ×１０１
４〜ｌＸ１０１８ｃｍ″″２、好ましくはｌＸ１０１５
〜１×１０旧ｃｍ−２であるのが適当である。イオンビ
ームの加速電圧および照射量が前記範囲内であるときに
、樹脂成形品の表面に帯電現象が生じない最適な導電性
を付与することができるのであって、加速電圧および照
射量のいずれもが前記範囲よりも小なるときは、導電性
が充分でなく帯電現象が生じるおそれがある。一方、加
速電圧および照射量のいずれもが前記範囲よりも大なる
ときは、樹脂成形品の表面が過度に劣化し表面の物性が
低下するため好ましくない。The ion beam irradiated to impart conductivity to this heat-resistant resin molded product has an accelerating voltage of 0.2 to 50 MeV, preferably 0.2 to 3 MeV, and an irradiation dose of I×101
4~1X1018cm''2, preferably 1X1015
~1×10 old cm −2 is suitable. When the accelerating voltage and irradiation amount of the ion beam are within the above range, it is possible to impart optimal conductivity to the surface of the resin molded product without causing a charging phenomenon. When is smaller than the above range, the conductivity may not be sufficient and a charging phenomenon may occur. On the other hand, when both the accelerating voltage and the irradiation amount are larger than the above ranges, the surface of the resin molded article deteriorates excessively and the physical properties of the surface deteriorate, which is not preferable.
本発明において照射するイオン種は特に制限されないが
、イオン種゛の質量が大きく、かつ照射量と照射エネル
ギとが大きいほど（すなわちＡ ＩＩ 。Although the ion species to be irradiated in the present invention is not particularly limited, the larger the mass of the ion species and the larger the irradiation amount and irradiation energy (ie, A II ).
Ｎｉなどのイオン種を０．５ＭｅＶ以上でかつｌＸ１０
”ｃａｂ−２以上の照射量で照射したとき）、表面の導
電性が向上し絶縁性が小さくなる傾向にある。一方、イ
オン種の質量が小さく、かつ照射エネルギが大きいほど
（すなわちＨｅ、Ｂなどのイオン種を０，２〜５０ Ｍ
ｅＶのエネルギで照射したとき）、表面に形成される導
電層の厚さは大きくなる傾向にあるが、この厚さはせい
ぜい数μｍであるので、実質的な影響はない。Ion species such as Ni at 0.5 MeV or higher and lX10
When irradiated with a dose of ``cab-2 or higher'', the surface conductivity tends to improve and the insulation becomes smaller.On the other hand, the smaller the mass of the ion species and the larger the irradiation energy (i.e. He, B ionic species such as 0.2 to 50 M
When the conductive layer is irradiated with an energy of eV), the thickness of the conductive layer formed on the surface tends to increase, but since this thickness is several μm at most, there is no substantial effect.
また、イオンビームの照射時間は適宜決定することがで
きる。Further, the ion beam irradiation time can be determined as appropriate.
イオンビームの照射装置としては、通常のイオン注入装
置が使用可能である。A normal ion implantation device can be used as the ion beam irradiation device.
なお、耐熱性樹脂成形品の形状は、イオンビームを均一
に照射できるものである限り、限定されるものではなく
、フィルムやシート類をはじめ各種の成形加工品（例え
ばロールなど）が適用可能である。The shape of the heat-resistant resin molded product is not limited as long as it can be uniformly irradiated with the ion beam, and various molded products such as films and sheets (such as rolls) can be used. be.
〈実施例〉 以下、実施例に基づき本発明をより詳細に説明する。<Example> Hereinafter, the present invention will be explained in more detail based on Examples.
実施例１
第１図に示すイオン照射装置を使用して、厚さ５０μｍ
のポリイミドフィルムの表面にＩ ＭｃＶのＮ２＋イオ
ンを５Ｘ１０１５ｃｏ−２照射した。照射時間が約４０
分間で、フィルムの表面は約１５０℃に加熱された。Example 1 Using the ion irradiation device shown in Figure 1, a 50 μm thick
The surface of the polyimide film was irradiated with 5×10 15 co−2 of I McV N 2+ ions. Irradiation time is approximately 40
In minutes, the surface of the film was heated to about 150°C.
第１図に示すイオン照射装置は、イオン源（１）、ビー
ム引き出し部（２）、イオンビーム加速部（３）、質量
分離器（４）、イオンビーム走査部（５）およびイオン
照射室（６）からなり、イオン照射室（６）内に装着し
たフィルム（７）にイオン源（１）から引き出したイオ
ンビーム（８）を照射するようにしている。The ion irradiation apparatus shown in FIG. 6), and the ion beam (8) extracted from the ion source (1) is irradiated onto a film (7) mounted in the ion irradiation chamber (6).
実施例２
厚さ２０μｍのボリアリレートフィルムの表面にＩ Ｍ
ｃＶのＡｒ＋イオンを１×１０１５０ｆｆｌ″−２で照
射した。その他は実施例１と同様にして処理した。Example 2 IM on the surface of a 20 μm thick polyarylate film
Ar+ ions of cV were irradiated at 1 x 10150 ffl''-2.Other treatment was carried out in the same manner as in Example 1.
実施例３
厚さ１００ｐのボーリエーテルエーテルケトン（ＰＥＥ
Ｋ）フィルムに５００ ｋｅＶのＮ１＋イオンを３Ｘ１
０’ｃｌ″″２で照射した。その他は実施例１と同様に
して処理した。Example 3 Borietheretherketone (PEE) with a thickness of 100p
K) 3X1 500 keV N1+ ions on the film
Irradiation was performed at 0'cl''2. The rest was treated in the same manner as in Example 1.
実施例４
厚さｌｆｆ１ｍのメラミン樹脂成形品に２ ＭｅＶのＨ
ｅ＋イオンをｌＸ１０１６ｃｍ−２で照射した。その他
は実施例１と同様にして処理した。Example 4 H of 2 MeV was applied to a melamine resin molded product with a thickness lff1m.
The e+ ions were irradiated at 1×10 16 cm −2 . The rest was treated in the same manner as in Example 1.
実施例５
厚さ１０μｍのポリエーテルイミドフィルムにＩＭｅＶ
のＢ＋イオンをｌＸ１０１５ｃｍ−２で照射した。Example 5 IMeV applied to a 10 μm thick polyetherimide film
B+ ions were irradiated at 1×10 15 cm −2 .
その他は実施例１と同様にして処理した。The rest was treated in the same manner as in Example 1.
評価試験
これらの実施例１〜５において使用した各フィルムおよ
び成形品の表面抵抗値を、イオンビームの照射前および
照射後についてそれぞれ測定した。Evaluation Test The surface resistance values of each film and molded article used in Examples 1 to 5 were measured before and after ion beam irradiation.
その結果を次表に示す。なお、表面抵抗とは、物体の表
面にＩＣ１１平方の正方形を考えたとき、その対応する
両辺間に流れる電流から算出した電気抵抗値をいう。こ
の表面抵抗値は物体の帯電性を知る指標となるものであ
って、一般に表面抵抗値が１０幻Ω以下なら帯電現象は
認められないといわれている（前述の「プラスチック配
合剤−基礎と応用」２６３頁を参照）。The results are shown in the table below. Note that the surface resistance refers to the electrical resistance value calculated from the current flowing between the corresponding sides of a square IC11 on the surface of the object. This surface resistance value serves as an index to know the charging property of an object, and it is generally said that if the surface resistance value is less than 10 phantom ohms, no charging phenomenon will be observed. (See page 263).
表から、フィルムに前記条件でイオンビームを照射する
ことにより、いずれも表面抵抗が１０幻Ω以下になり、
帯電防止が行われていることがわかる。From the table, it can be seen that by irradiating the film with the ion beam under the above conditions, the surface resistance becomes 10 phantom Ω or less,
It can be seen that static electricity is prevented.
〈発明の効果〉 本発明によれば、以下の効果がある。<Effect of the invention> According to the present invention, there are the following effects.
（１）耐熱性樹脂成形品の表面にイオンビームを０．２
〜５０ＭｅＶ で゛かつ１×１０Ａ〜１×１０Ｔ８ｅ１
１”−２の照射量で照射して導電性を付与することによ
り、高い帯電防止効果が得られる。(1) Ion beam is applied to the surface of the heat-resistant resin molded product by 0.2
〜50MeV and 1×10A〜1×10T8e1
A high antistatic effect can be obtained by imparting conductivity by irradiating with a dose of 1''-2.
（２）従来のように帯電防止剤や導電性物質を内部に混
入させるものではないので、樹脂成形品の強度が低下す
るなどの問題を生じさせることがない。また、イオンビ
ームを照射する樹脂成形品は耐熱性であるので、イオン
ビーム照射時の発熱によって樹脂成形品が熱劣化するの
が防止される。(2) Unlike conventional methods, antistatic agents and conductive substances are not mixed inside, so problems such as a decrease in the strength of the resin molded product do not occur. Furthermore, since the resin molded product to which the ion beam is irradiated is heat resistant, thermal deterioration of the resin molded product due to heat generated during ion beam irradiation is prevented.
（３） 従来のように帯電防止剤を表面に塗布するだ
けの処理法に比べて、帯電防止効果の持続時間がはるか
に長くなる。(3) The antistatic effect lasts much longer than the conventional treatment method that simply applies an antistatic agent to the surface.
（４） イオンビームを照射するだけであるから、処
理が簡単であり、それゆえ実用的価値が大きい。(4) Since only ion beam irradiation is required, processing is simple and therefore of great practical value.
従って、本発明によって得られる帯電防止樹脂成形品は
、帯電防止を必要とする種々の分野で使用するのに最適
である。Therefore, the antistatic resin molded article obtained by the present invention is optimal for use in various fields requiring antistatic properties.
第１図は本発明の実施例で使用したイオン照射装置の概
略を示す説明図である。
（７）・・・フィルム、FIG. 1 is an explanatory diagram schematically showing an ion irradiation device used in an example of the present invention. (7)...Film,
Claims (1)
０＾１＾８ｃｍ＾−＾２の照射量で照射して導電性を付
与することを特徴とする帯電防 止樹脂成形品の製造方法。 ２、前記耐熱性樹脂成形品が、分子中に芳 香族環または複素環を有する耐熱性樹脂 材料から形成されたものである請求項第 １項記載の帯電防止樹脂成形品の製造方 法。[Claims] 1. An ion beam of 0.2 to 50 MeV is applied to the surface of a heat-resistant resin molded product at 1×10^1^4 to 1×1.
A method for manufacturing an antistatic resin molded article, characterized in that it is irradiated with a dose of 0^1^8 cm^-^2 to impart conductivity. 2. The method for producing an antistatic resin molded article according to claim 1, wherein the heat-resistant resin molded article is formed from a heat-resistant resin material having an aromatic ring or a heterocycle in the molecule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32511088A JPH02169636A (en) | 1988-12-22 | 1988-12-22 | Production of antistatic resin molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32511088A JPH02169636A (en) | 1988-12-22 | 1988-12-22 | Production of antistatic resin molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02169636A true JPH02169636A (en) | 1990-06-29 |
Family
ID=18173225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32511088A Pending JPH02169636A (en) | 1988-12-22 | 1988-12-22 | Production of antistatic resin molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02169636A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5991129A (en) * | 1982-11-17 | 1984-05-25 | Toyota Central Res & Dev Lab Inc | Polymer article having conductive layer |
-
1988
- 1988-12-22 JP JP32511088A patent/JPH02169636A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5991129A (en) * | 1982-11-17 | 1984-05-25 | Toyota Central Res & Dev Lab Inc | Polymer article having conductive layer |
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