JPH0649652A - Method for coating organic polymer fine powder with metal - Google Patents
Method for coating organic polymer fine powder with metalInfo
- Publication number
- JPH0649652A JPH0649652A JP19630192A JP19630192A JPH0649652A JP H0649652 A JPH0649652 A JP H0649652A JP 19630192 A JP19630192 A JP 19630192A JP 19630192 A JP19630192 A JP 19630192A JP H0649652 A JPH0649652 A JP H0649652A
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- JP
- Japan
- Prior art keywords
- fine powder
- metal
- organic polymer
- org
- polymer fine
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、球形で単分散性の、例
えば磁性材料、帯電防止剤、導電性材料、触媒等として
用いられる金属コーティングされた有機ポリマー微粉体
を製造する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a spherical and monodisperse metal-coated organic polymer fine powder used as, for example, a magnetic material, an antistatic agent, a conductive material, a catalyst or the like. is there.
【０００２】[0002]
【従来技術及びその問題点】有機ポリマー微粉体の表面
に無機物をコーティングする方法としては、ドライブレ
ンディング法が知られている。しかし、この方法では、
機械的エネルギー等の外的エネルギーを加えるため、コ
ア材やコーティング剤の変質・変形が生じたり、均一な
厚みを有し且つ均質な膜を形成するための制御が困難で
あったり、生産性が低くエネルギーロスが大きい等の欠
点があった。また、無電解めっき法を利用することも可
能性としては考えられるが、この方法では、高価なパラ
ジウム等の貴金属触媒を使用しなければならないため、
コスト高となるという欠点があった。2. Description of the Related Art A dry blending method is known as a method for coating the surface of an organic polymer fine powder with an inorganic substance. But with this method,
Since external energy such as mechanical energy is applied, the core material or coating agent may be altered or deformed, or it may be difficult to control to form a uniform film having a uniform thickness. There were drawbacks such as low energy loss and large energy loss. It is also possible to use an electroless plating method, but in this method, an expensive precious metal catalyst such as palladium must be used,
There was a drawback that the cost was high.
【０００３】[0003]
【発明の目的】本発明は、低コストで、極めて容易に、
均一な厚みを有し且つ均質な金属コーティング層を有機
ポリマー微粉体表面に形成することのできる方法を提供
することを目的とする。OBJECT OF THE INVENTION The present invention is of low cost and very easily
An object of the present invention is to provide a method capable of forming a uniform metal coating layer having a uniform thickness on the surface of an organic polymer fine powder.
【０００４】[0004]
【目的を達成するための手段】本発明は、プラズマ処
理、化学酸化、オゾン処理、紫外線照射等によって有機
ポリマーの表面を改質する方法と、本発明者らが別の研
究で開発した遷移金属の超微粒子湿式合成法とを組合
せ、有機ポリマー微粉体の表面に、ニッケル、鉄、コバ
ルト、銅、亜鉛、クロム、モリブデン等の金属からなる
薄膜を形成して、有機ポリマー微粉体に上記金属に基づ
く機能を持たせようとするものである。The present invention includes a method for modifying the surface of an organic polymer by plasma treatment, chemical oxidation, ozone treatment, ultraviolet irradiation, etc., and a transition metal developed by the present inventors in another research. In combination with the ultrafine particle wet synthesis method of (1), a thin film made of a metal such as nickel, iron, cobalt, copper, zinc, chromium or molybdenum is formed on the surface of the organic polymer fine powder, and the organic polymer fine powder is formed into the above metal. It is intended to have a function based on it.
【０００５】即ち、本発明の有機ポリマー微粉体表面へ
の金属コーティング方法は、有機溶媒に、所定の金属の
アセチルアセトナトキレート錯体、還元剤、及び表面に
官能基を有する有機ポリマーの微粉体を加え、攪拌しな
がら加熱還流することを特徴とするものである。That is, the method of coating a metal on the surface of an organic polymer fine powder according to the present invention is a method in which an acetylacetonato chelate complex of a predetermined metal, a reducing agent, and an organic polymer fine powder having a functional group on the surface are used in an organic solvent. In addition, it is characterized by heating and refluxing while stirring.
【０００６】微粉体は、０．０１〜１００μｍの大きさ
のものが好ましく用いられる。微粉体の材料である有機
ポリマーとしては、例えば架橋型ポリスチレンが用いら
れる。金属としては、ニッケル、鉄、コバルト、銅、亜
鉛、クロム、モリブデン等が好ましく用いられる。有機
溶媒としては、例えばジフェニルエーテル、アニソール
が用いられる。The fine powder preferably has a size of 0.01 to 100 μm. As the organic polymer which is a material of fine powder, for example, crosslinked polystyrene is used. As the metal, nickel, iron, cobalt, copper, zinc, chromium, molybdenum, etc. are preferably used. As the organic solvent, for example, diphenyl ether or anisole is used.
【０００７】還元剤としては、水素化物類又はヒドラジ
ン類が好ましく用いられる。水素化物類としては、水素
化ナトリウム、水素化リチウム、水素化カリウム、水素
化ホウ素ナトリウム、水素化ホウ素リチウム、水素化ホ
ウ素カリウム、水素化アルミニウムリチウム等が用いら
れ、ヒドラジン類としては、ヒドラジン、硫酸ヒドラジ
ニウム、一塩化ヒドラジニウム、二塩化ヒドラジニウム
等が用いられる。As the reducing agent, hydrides or hydrazines are preferably used. As the hydrides, sodium hydride, lithium hydride, potassium hydride, sodium borohydride, lithium borohydride, potassium borohydride, lithium aluminum hydride, etc. are used, and the hydrazines include hydrazine and sulfuric acid. Hydrazinium, hydrazinium monochloride, hydrazinium dichloride, etc. are used.
【０００８】有機ポリマーとしては、予め表面に官能基
を有するもの又は後から官能基を付与したものの内、い
ずれを用いてもよいが、後者を用いるのが好ましい。後
から官能基を付与する方法としては、プラズマ処理、化
学酸化、オゾン処理、紫外線照射等が採用される。プラ
ズマ処理としては、酸素を用いた、低温マイクロ波プラ
ズマ処理や高周波プラズマ処理等が用いられる。また、
化学酸化としては、クロム酸、塩素酸、硫酸−重クロム
酸、硫酸−過塩素酸等の溶液中に浸漬する方法が用いら
れる。As the organic polymer, any one of those having a functional group on the surface in advance or those having a functional group afterwards may be used, but the latter is preferably used. As a method of providing a functional group later, plasma treatment, chemical oxidation, ozone treatment, ultraviolet irradiation, etc. are adopted. As the plasma treatment, a low temperature microwave plasma treatment, a high frequency plasma treatment or the like using oxygen is used. Also,
As the chemical oxidation, a method of immersing in a solution of chromic acid, chloric acid, sulfuric acid-dichromic acid, sulfuric acid-perchloric acid or the like is used.
【０００９】[0009]
【作用】有機ポリマーの微粉体に、例えば低温酸素プラ
ズマ処理を施すと、微粉体の表面にはカルボキシル基、
フェノール性水酸基等の含酸素官能基が付与され、微粉
体表面は極性化されることとなる。一方、有機溶媒に溶
解している金属のアセチルアセトナトキレート錯体から
は還元剤によって金属が解離する。従って、表面が極性
化された上記微粉体が存在する中で、金属が解離してく
ると、金属の核が生成する段階において微粉体表面と金
属との結合が起こり、微粉体表面は金属で覆われること
となる。[Function] When fine powder of an organic polymer is subjected to, for example, low temperature oxygen plasma treatment, carboxyl groups are formed on the surface of the fine powder.
Oxygen-containing functional groups such as phenolic hydroxyl groups are added, and the surface of the fine powder is polarized. On the other hand, the reducing agent dissociates the metal from the acetylacetonato chelate complex of the metal dissolved in the organic solvent. Therefore, when the metal is dissociated in the presence of the fine powder whose surface is polarized, a bond between the fine powder surface and the metal occurs at the stage where metal nuclei are generated, and the fine powder surface is metal. Will be covered.
【００１０】[0010]
【実施例】以下、本発明の実施例を説明する。なお、本
発明はこれらの実施例に限られるものではない。 （実施例１）有機ポリマー微粉体に、５Ｔｏｒｒの圧力
で１０分間、酸素プラズマ処理を施した。なお、有機ポ
リマー微粉体として、ここでは商品名「アクリルスチレ
ン架橋粒子ＰＫＳ−６３２５」（ナトコペイント株式会
社製）を用いた。また、その微粉体の直径は６．３μｍ
であった。一方、ジフェニルエーテル１５０ｍｌにビス
（アセチルアセトナト）ジアクアニッケル０．０１ｍｏ
ｌを溶解し、これにヒドラジン０．０４ｍｏｌを添加し
た。そして、この浴中に、上記プラズマ処理された有機
ポリマー微粉体０．５９５ｇを入れ、窒素雰囲気下で、
攪拌しながら１６０℃で１時間加熱還流した。得られた
微粉体をろ過し、洗浄し、乾燥した。なお、比較例とし
て、プラズマ処理を施すことなく、上記と同様にして微
粉体を得た。EXAMPLES Examples of the present invention will be described below. The present invention is not limited to these examples. (Example 1) The organic polymer fine powder was subjected to oxygen plasma treatment at a pressure of 5 Torr for 10 minutes. As the organic polymer fine powder, the trade name "acrylic styrene crosslinked particles PKS-6325" (manufactured by Natco Paint Co., Ltd.) was used here. The diameter of the fine powder is 6.3 μm.
Met. On the other hand, bis (acetylacetonato) diaqua nickel 0.01mo in 150 ml of diphenyl ether.
1 was dissolved and 0.04 mol of hydrazine was added thereto. Then, 0.595 g of the above-mentioned plasma-treated organic polymer fine powder was placed in this bath, and under a nitrogen atmosphere,
The mixture was heated under reflux at 160 ° C. for 1 hour while stirring. The fine powder obtained was filtered, washed and dried. As a comparative example, fine powder was obtained in the same manner as above without performing plasma treatment.
【００１１】図１は本実施例により得られた微粉体を示
すＳＥＭ写真、図２は比較例として得られた微粉体を示
すＳＥＭ写真である。両図を比較してわかるように、本
実施例では微粉体表面に均一な厚みを有し且つ均質な金
属ニッケルコーティング層が形成されているが、プラズ
マ処理を施さなかった場合にはコーティング層は全く形
成されていない。FIG. 1 is a SEM photograph showing the fine powder obtained in this example, and FIG. 2 is a SEM photograph showing the fine powder obtained as a comparative example. As can be seen by comparing both figures, in this example, a fine metallic powder having a uniform thickness and a uniform metallic nickel coating layer was formed, but when the plasma treatment was not performed, the coating layer was Not formed at all.
【００１２】（実施例２）実施例１と同じ有機ポリマー
微粉体に、プラズマ処理を施す代わりに、(A):化学酸化
を施し、又は(B):紫外線を照射し、(A) 、(B) により得
られた微粉体を、それぞれ、実施例１と同じ浴に入れ、
攪拌しながら９０℃で３０分間加熱還流した。なお、
(A) の化学酸化は、１０％クロム酸溶液中に２０℃で１
時間浸漬する方法を用いた。(B) の紫外線照射は、２７
５ｎｍの紫外線を１時間照射して行なった。そして、そ
れぞれ得られた微粉体をろ過し、洗浄し、乾燥した。Example 2 The same organic polymer fine powder as in Example 1 was subjected to (A): chemical oxidation, or (B): ultraviolet light irradiation, instead of being subjected to plasma treatment, and (A), ( Each of the fine powders obtained in B) was placed in the same bath as in Example 1,
The mixture was heated under reflux at 90 ° C. for 30 minutes while stirring. In addition,
The chemical oxidation of (A) was carried out in a 10% chromic acid solution at 20 ° C.
The time immersion method was used. UV irradiation of (B) is 27
It was performed by irradiating with ultraviolet rays of 5 nm for 1 hour. Then, each fine powder obtained was filtered, washed and dried.
【００１３】図３は(A) による微粉体を用いて得られた
微粉体を示すＳＥＭ写真、図４は(B) による微粉体を用
いて得られた微粉体を示すＳＥＭ写真である。これらか
らわかるように、共に、微粉体表面には均一な厚みを有
し且つ均質な金属ニッケルコーティング層が形成されて
いる。FIG. 3 is a SEM photograph showing a fine powder obtained by using the fine powder according to (A), and FIG. 4 is a SEM photograph showing a fine powder obtained by using the fine powder according to (B). As can be seen from these, the metallic nickel coating layer having a uniform thickness and a uniform thickness is formed on the surface of the fine powder.
【００１４】（実施例３）アニソール１５０ｍｌにビス
（アセチルアセトナト）ジアクアニッケル０．０１ｍｏ
ｌと水素化ホウ素ナトリウム０．０２ｍｏｌとを溶解
し、この浴中に、(A):有機ポリマー微粉体である商品名
「アクリルスチレンマイクロジェルＰ−１１０１」（日
本ペイント株式会社製）、又は(B):(A) の有機ポリマー
微粉体に５Ｔｏｒｒの圧力で１０分間酸素プラズマ処理
を施したもの、をそれぞれ０．２ｇずつ入れ、攪拌しな
がら１５０℃で４０分間加熱還流した。なお、(A) の微
粉体は、表面に官能基としてカルボキシル基を有してお
り、その直径は０．９０μｍであった。そして、それぞ
れ得られた微粉体をろ過し、洗浄し、乾燥した。(Example 3) 0.01 ml of bis (acetylacetonato) diaqua nickel in 150 ml of anisole
1 and 0.02 mol of sodium borohydride are dissolved, and in this bath, (A): an organic polymer fine powder under the trade name of "acrylic styrene microgel P-1101" (manufactured by Nippon Paint Co., Ltd.), or ( B): 0.2 g each of the finely divided organic polymer powder of (A) that had been subjected to oxygen plasma treatment at a pressure of 5 Torr for 10 minutes, and heated and refluxed at 150 ° C. for 40 minutes while stirring. The fine powder of (A) had a carboxyl group as a functional group on the surface, and its diameter was 0.90 μm. Then, each fine powder obtained was filtered, washed and dried.
【００１５】図５は(A) による微粉体を用いて得られた
微粉体を示すＳＥＭ写真、図６は(B) による微粉体を用
いて得られた微粉体を示すＳＥＭ写真である。また、図
７は浴中で加熱還流する前の微粉体を示すＳＥＭ写真で
ある。図５では図７に比して僅かではあるが金属ニッケ
ルのコーティングが認められるが、図６ほど多量には認
められない。即ち、有機ポリマー微粉体としては、(A)
のように予め表面に官能基を有するもの又は(B) のよう
に後から官能基を付与したものの内、いずれを用いても
よいが、後者を用いるのが好ましい。FIG. 5 is a SEM photograph showing a fine powder obtained by using the fine powder according to (A), and FIG. 6 is a SEM photograph showing a fine powder obtained by using the fine powder according to (B). Further, FIG. 7 is a SEM photograph showing the fine powder before being heated and refluxed in the bath. In FIG. 5, a slight amount of metallic nickel coating is recognized as compared with FIG. 7, but not as large as in FIG. 6. That is, as the organic polymer fine powder, (A)
Of these, those having a functional group on the surface in advance as described above or those having a functional group added later as in (B) may be used, but the latter is preferably used.
【００１６】[0016]
【別の実施例】本発明で用いる有機ポリマー微粉体は、
０．０１〜１００μｍの大きさのものであればよい。Another Example The organic polymer fine powder used in the present invention is
It may have a size of 0.01 to 100 μm.
【００１７】また、本発明でコーティングする金属は、
鉄、コバルト、銅、亜鉛、クロム、モリブデン等であっ
てもよい。The metal coated in the present invention is
It may be iron, cobalt, copper, zinc, chromium, molybdenum or the like.
【００１８】また、本発明で用いる還元剤は、水素化物
類又はヒドラジン類であれば、上記実施例のものに限る
ものではない。The reducing agent used in the present invention is not limited to those in the above-mentioned examples as long as it is a hydride or a hydrazine.
【００１９】[0019]
【発明の効果】以上のように本発明によれば、有機ポリ
マー微粉体の表面に金属コーティング層を形成すること
ができる。As described above, according to the present invention, the metal coating layer can be formed on the surface of the organic polymer fine powder.
【００２０】しかも、有機溶媒に、金属のアセチルアセ
トナトキレート錯体、還元剤、有機ポリマー微粉体を加
え、攪拌しながら加熱還流するだけでよいので、極めて
容易に行なうことができる。また、高価な材料を用いる
こともないので、低コストで行なうことができる。Moreover, since it is only necessary to add the metal acetylacetonato chelate complex, the reducing agent, and the fine powder of the organic polymer to the organic solvent, and heat and reflux with stirring, this can be carried out very easily. Further, since no expensive material is used, the cost can be reduced.
【００２１】更に、攪拌しながら行なうため、上記錯
体、還元剤、及び有機ポリマー微粉体は有機溶媒中にて
均一に分散し、有機ポリマー微粉体表面は均等に金属と
出会うこととなる。従って、均一な厚みを有し且つ均質
な金属コーティング層を形成することができる。Further, since the above-mentioned complex, reducing agent, and organic polymer fine powder are uniformly dispersed in the organic solvent because the stirring is performed, the surface of the organic polymer fine powder uniformly meets the metal. Therefore, it is possible to form a uniform metal coating layer having a uniform thickness.
【００２２】また、加えるものの量的割合を容易に変更
できるので、金属コーティング層の厚さを容易に調整で
き、例えば非常に薄くできる。Moreover, since the quantitative ratio of the added substance can be easily changed, the thickness of the metal coating layer can be easily adjusted, and for example, can be made extremely thin.
【図１】 粒子構造を示す図面に代わる写真であって、
実施例１において得られた微粉体を示すＳＥＭ写真であ
る。FIG. 1 is a photograph replacing a drawing showing a particle structure,
3 is an SEM photograph showing the fine powder obtained in Example 1.
【図２】 粒子構造を示す図面に代わる写真であって、
実施例１に対する比較例として得られた微粉体を示すＳ
ＥＭ写真である。FIG. 2 is a photograph replacing a drawing showing a particle structure,
S showing the fine powder obtained as a comparative example to Example 1
It is an EM photograph.
【図３】 粒子構造を示す図面に代わる写真であって、
実施例２において、(A) による微粉体を用いて得られた
微粉体を示すＳＥＭ写真である。FIG. 3 is a photograph replacing a drawing showing a particle structure,
7 is an SEM photograph showing a fine powder obtained by using the fine powder according to (A) in Example 2.
【図４】 粒子構造を示す図面に代わる写真であって、
実施例２において、(B) による微粉体を用いて得られた
微粉体を示すＳＥＭ写真である。FIG. 4 is a photograph replacing a drawing showing a particle structure,
7 is a SEM photograph showing a fine powder obtained by using the fine powder according to (B) in Example 2.
【図５】 粒子構造を示す図面に代わる写真であって、
実施例３において、(A) による微粉体を用いて得られた
微粉体を示すＳＥＭ写真である。FIG. 5 is a photograph replacing a drawing showing a particle structure,
7 is an SEM photograph showing a fine powder obtained by using the fine powder according to (A) in Example 3.
【図６】 粒子構造を示す図面に代わる写真であって、
実施例３において、(B) による微粉体を用いて得られた
微粉体を示すＳＥＭ写真である。FIG. 6 is a photograph replacing a drawing showing a particle structure,
6 is an SEM photograph showing a fine powder obtained by using the fine powder according to (B) in Example 3.
【図７】 粒子構造を示す図面に代わる写真であって、
実施例３において、浴中で加熱還流する前の微粉体を示
すＳＥＭ写真である。FIG. 7 is a photograph replacing a drawing showing a particle structure,
7 is a SEM photograph showing a fine powder before being heated and refluxed in a bath in Example 3.
フロントページの続き (72)発明者 入山 裕 大阪府寝屋川市池田中町19番17号 日本ペ イント株式会社内 (72)発明者 大中 隆 大阪府大阪市淀川区三国本町３丁目９番39 号 株式会社日本アルミ内 (72)発明者 石田 慎一 大阪府大阪市淀川区三国本町３丁目９番39 号 株式会社日本アルミ内Front page continuation (72) Yutaka Iriyama 19-17 Ikedanaka-cho, Neyagawa-shi, Osaka Japan Paint Co., Ltd. Company Japan Aluminum (72) Inventor Shinichi Ishida 3-939 Mikunihonmachi, Yodogawa-ku, Osaka-shi, Osaka
Claims (6)
トナトキレート錯体、還元剤、及び表面に官能基を有す
る有機ポリマーの微粉体を加え、攪拌しながら加熱還流
することを特徴とする有機ポリマー微粉体表面への金属
コーティング方法。1. An organic polymer characterized in that an acetylacetonato chelate complex of a predetermined metal, a reducing agent, and a fine powder of an organic polymer having a functional group on the surface are added to an organic solvent, and the mixture is heated under reflux with stirring. Metal coating method for fine powder surface.
理、化学酸化、オゾン処理、又は紫外線照射によって、
付与されている請求項１記載の有機ポリマー微粉体表面
への金属コーティング方法。2. The functional group on the surface of the fine powder is treated by plasma treatment, chemical oxidation, ozone treatment, or ultraviolet irradiation.
The method for coating a metal on the surface of an organic polymer fine powder according to claim 1, which is provided.
大きさのものである請求項１記載の有機ポリマー微粉体
表面への金属コーティング方法。3. The method for coating a metal on the surface of an organic polymer fine powder according to claim 1, wherein the fine powder has a size of 0.01 to 100 μm.
ルト、銅、亜鉛、クロム、又はモリブデンである請求項
１記載の有機ポリマー微粉体表面への金属コーティング
方法。4. The method for coating a metal on the surface of an organic polymer fine powder according to claim 1, wherein the predetermined metal is nickel, iron, cobalt, copper, zinc, chromium, or molybdenum.
ン類である請求項１記載の有機ポリマー微粉体表面への
金属コーティング方法。5. The method for coating a metal on a surface of an organic polymer fine powder according to claim 1, wherein the reducing agent is a hydride or a hydrazine.
はアニソールである請求項１記載の有機ポリマー微粉体
表面への金属コーティング方法。6. The method for coating a metal on the surface of an organic polymer fine powder according to claim 1, wherein the organic solvent is diphenyl ether or anisole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19630192A JPH0649652A (en) | 1992-06-29 | 1992-06-29 | Method for coating organic polymer fine powder with metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19630192A JPH0649652A (en) | 1992-06-29 | 1992-06-29 | Method for coating organic polymer fine powder with metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0649652A true JPH0649652A (en) | 1994-02-22 |
Family
ID=16355535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19630192A Pending JPH0649652A (en) | 1992-06-29 | 1992-06-29 | Method for coating organic polymer fine powder with metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649652A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006031778A1 (en) * | 2006-07-10 | 2008-01-24 | Bartelt, Gunter, Dr. | Coating polyolefin powder with silver for use in medicinal and hygienic applications, suspends powder in liquid containing silver salt, reductant, nitrogen compound and additive |
| KR100811001B1 (en) * | 2007-10-04 | 2008-03-11 | 플라즈마제닉스(주) | Polymer-metal composite particles, polymer-metal nanocomposites and the production method thereof |
| KR20200113461A (en) * | 2019-03-25 | 2020-10-07 | 주식회사 엠엠에스 | Method for manufacturing low specific gravity conductive powder and Low specific gravity conductive powder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63303004A (en) * | 1987-06-01 | 1988-12-09 | Nippon Steel Corp | Production of metal powder |
| JPH02125881A (en) * | 1988-11-01 | 1990-05-14 | Kiyomiya Gijutsu Kenkyusho:Kk | Resin granular particles coated with metallic film |
-
1992
- 1992-06-29 JP JP19630192A patent/JPH0649652A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63303004A (en) * | 1987-06-01 | 1988-12-09 | Nippon Steel Corp | Production of metal powder |
| JPH02125881A (en) * | 1988-11-01 | 1990-05-14 | Kiyomiya Gijutsu Kenkyusho:Kk | Resin granular particles coated with metallic film |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006031778A1 (en) * | 2006-07-10 | 2008-01-24 | Bartelt, Gunter, Dr. | Coating polyolefin powder with silver for use in medicinal and hygienic applications, suspends powder in liquid containing silver salt, reductant, nitrogen compound and additive |
| KR100811001B1 (en) * | 2007-10-04 | 2008-03-11 | 플라즈마제닉스(주) | Polymer-metal composite particles, polymer-metal nanocomposites and the production method thereof |
| KR20200113461A (en) * | 2019-03-25 | 2020-10-07 | 주식회사 엠엠에스 | Method for manufacturing low specific gravity conductive powder and Low specific gravity conductive powder |
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