JPH0370322B2 - - Google Patents
Info
- Publication number
- JPH0370322B2 JPH0370322B2 JP57089821A JP8982182A JPH0370322B2 JP H0370322 B2 JPH0370322 B2 JP H0370322B2 JP 57089821 A JP57089821 A JP 57089821A JP 8982182 A JP8982182 A JP 8982182A JP H0370322 B2 JPH0370322 B2 JP H0370322B2
- Authority
- JP
- Japan
- Prior art keywords
- titanium dioxide
- antimony
- powder
- suspension
- aqueous solution
- 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 - Lifetime
Links
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 39
- 239000000843 powder Substances 0.000 claims description 25
- 239000004408 titanium dioxide Substances 0.000 claims description 18
- 229910052787 antimony Inorganic materials 0.000 claims description 12
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 8
- 239000000243 solution Substances 0.000 claims description 7
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 7
- 229910001887 tin oxide Inorganic materials 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 5
- FAPDDOBMIUGHIN-UHFFFAOYSA-K antimony trichloride Chemical compound Cl[Sb](Cl)Cl FAPDDOBMIUGHIN-UHFFFAOYSA-K 0.000 claims description 5
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 5
- 239000007900 aqueous suspension Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 235000010215 titanium dioxide Nutrition 0.000 description 17
- 238000000034 method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- GBRBMTNGQBKBQE-UHFFFAOYSA-L copper;diiodide Chemical compound I[Cu]I GBRBMTNGQBKBQE-UHFFFAOYSA-L 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000011328 necessary treatment Methods 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- -1 potassium and sodium Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Description
【発明の詳細な説明】
本発明は二酸化チタン粉末の表面をアンチモン
固溶の酸化スズにて均一に被覆し、白色で導電性
を有する二酸化チタン粉末の製造法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a white and electrically conductive titanium dioxide powder by uniformly coating the surface of the titanium dioxide powder with tin oxide containing antimony as a solid solution.
二酸化チタン粉末の表面をアンチモン固溶の酸
化スズにて均一に被覆した白色導電性粉末は、特
開昭56−41603号公報によつて公知となつている
が、本発明はかかる白色導電性粉末の製造法に関
するものである。 A white conductive powder in which the surface of titanium dioxide powder is uniformly coated with tin oxide containing antimony solid solution is known from JP-A-56-41603, and the present invention provides such a white conductive powder. This relates to a manufacturing method.
本発明の主たる目的は、白色を有する導電性繊
維の製造に使用可能な白色導電性粉末を低コスト
で簡易に製造することにある。 The main object of the present invention is to easily produce, at low cost, a white conductive powder that can be used to produce white conductive fibers.
一般に合成繊維は、絶縁抵抗性が高く、摩擦や
剥離によつて帯電し易い傾向がある。帯電防止の
目的からは導電性繊維が混紡される。このような
導電性繊維用の導電体としては、従来金属やカー
ボン等が使用されてきたが帯電防止の面では満足
できるものであつても、製品が黒色ないし灰色と
いう特定の色相を帯びるため、おのずからその用
途は限定される。従つてこの分野においては白色
で導電性の良好に導電体の開発が強く望まれてい
る。このような目的に合致する導電体としてはた
とえばスズをドーピングした酸化インジウム、ア
ンチモンをドーピングした酸化スズやヨウ化銅な
どが知られている。またこれらの導電性物質を担
体に被覆する方法としてはスプレー法、CVD法、
スパツター法や蒸着法などがあるが、このような
方法は二酸化チタンの如く微粉末に対してはコス
ト面や操作の容易性の面から適切でない。 Generally, synthetic fibers have high insulation resistance and tend to be easily charged by friction or peeling. For the purpose of preventing static electricity, conductive fibers are blended. Conventionally, metals, carbon, etc. have been used as conductors for such conductive fibers, but even if they are satisfactory in terms of antistatic properties, they tend to cause the product to take on a specific hue of black or gray. Naturally, its uses are limited. Therefore, in this field, there is a strong desire to develop a conductor that is white and has good conductivity. Known conductors that meet this purpose include, for example, indium oxide doped with tin, tin oxide doped with antimony, and copper iodide. In addition, methods for coating carriers with these conductive substances include spray methods, CVD methods,
Although there are sputtering methods and vapor deposition methods, these methods are not suitable for fine powders such as titanium dioxide from the viewpoint of cost and ease of operation.
一方、特開昭56−41603号公報に述べられてい
る方法は、均一な被覆を形成させる点では優れた
ものと思われるもののコスト面や操作の容易さの
点で必ずしも満足できるものではない。 On the other hand, although the method described in JP-A-56-41603 seems to be excellent in terms of forming a uniform coating, it is not necessarily satisfactory in terms of cost and ease of operation.
合成繊維のつや消しという観点から種々の二酸
化チタンが実用されており、二酸化チタンは導電
性担体としても適当と考えられる。また導電物質
としては毒性及び品質面からアンチモンをドーピ
ングした酸化スズの適用が可能であるが製造の簡
易化に関しては更に検討が必要であつた。本発明
者らは、この点に関し研究を行なつた結果、特に
アルカリ金属含有量の少ない二酸化チタン粉末の
加熱懸濁液に、塩化スズと塩化アンチモンを溶解
した稀塩酸水溶液とアンモニア水とを、懸濁液の
PHをコントロールしながら同時添加することによ
つて、アンチモンとスズの加水反応生成物が二酸
化チタン粒子面に均一に沈着することを見いだし
た。得られた被覆粉末の水洗、乾燥物はＬ値で80
以上の白度をもちまた比抵抗10〜500Ω・cmの良
好な導電性を有し、吸湿性がなくかつ品質的にも
安定したものである。 Various titanium dioxides have been put to practical use from the viewpoint of matting synthetic fibers, and titanium dioxide is also considered suitable as a conductive carrier. Further, as a conductive material, tin oxide doped with antimony can be used from the viewpoint of toxicity and quality, but further study is required regarding simplification of manufacturing. As a result of research on this point, the present inventors found that a dilute aqueous hydrochloric acid solution in which tin chloride and antimony chloride were dissolved and aqueous ammonia were added to a heated suspension of titanium dioxide powder with a particularly low alkali metal content. suspension
It was found that by simultaneously adding antimony and tin while controlling the pH, the hydration reaction product of antimony and tin was deposited uniformly on the surface of titanium dioxide particles. The obtained coated powder was washed with water and dried with an L value of 80.
It has high whiteness, good conductivity with a specific resistance of 10 to 500 Ω·cm, no moisture absorption, and stable quality.
本発明は上記知見に基づいて開発されたもので
あつて、加水分解を防止するに足りる稀塩酸水溶
液中に20〜800ｇ／の塩化スズと0.2〜174ｇ／
の塩化アンチモンを溶解した水溶液とアンモニ
ア水溶液とを温度50〜100℃の二酸化チタン水懸
濁液中に、懸濁液のPHを５〜９に維持しながら同
時添加することによつて、アンチモンを１〜20重
量％含有し、残りが酸化スズからなる被覆層を二
酸化チタンに対して５〜50重量％処理し、過、
水洗後熱処理することを特徴とする白色導電性粉
末の製造法に関するものである。 The present invention was developed based on the above findings, and consists of mixing 20 to 800 g of tin chloride and 0.2 to 174 g of tin chloride in a dilute aqueous hydrochloric acid solution sufficient to prevent hydrolysis.
By simultaneously adding an aqueous solution of antimony chloride and an ammonia aqueous solution to an aqueous suspension of titanium dioxide at a temperature of 50 to 100°C while maintaining the pH of the suspension at 5 to 9, antimony can be dissolved. A coating layer containing 1 to 20% by weight of titanium dioxide with the remainder being tin oxide is treated with 5 to 50% by weight of titanium dioxide.
The present invention relates to a method for producing white conductive powder, which is characterized by carrying out heat treatment after washing with water.
本発明において使用しうる二酸化チタンとして
は、ルチル型、アナターゼ型、無定形及び他種の
金属酸化物等との複合体があり、その製造法には
特に限定されない。ただしカリウム、ナトリウム
等のアルカリ金属含有量の多い二酸化チタンを使
用した場合にはアンチモンをドーピングした酸化
スズを被覆したとしても得られた粉末の比抵抗は
数千Ω・cmとなり、導電性の良い白色粉末をうる
という目的には適さない。 Titanium dioxide that can be used in the present invention includes rutile type, anatase type, amorphous, and complexes with other types of metal oxides, and there are no particular limitations on the method for producing the titanium dioxide. However, when using titanium dioxide that has a high content of alkali metals such as potassium and sodium, the specific resistance of the powder obtained is several thousand Ω・cm even if it is coated with antimony-doped tin oxide, indicating that it has good conductivity. It is not suitable for the purpose of obtaining white powder.
また使用しうる二酸化チタン粒子の形状並びに
粒度については特に限定しない。 Further, the shape and particle size of the titanium dioxide particles that can be used are not particularly limited.
本発明において二酸化チタン水懸濁液の温度を
50〜100℃に限定した理由について、良好な導電
性付与には均一な被膜生成が必要であり、この条
件は50℃以上で満足される。均一性は液温が高い
ほど良好であるが、100℃以上では操業上の簡易
性が失なわれ適当でない。 In the present invention, the temperature of the titanium dioxide aqueous suspension is
The reason for limiting the temperature to 50 to 100°C is that formation of a uniform film is necessary to impart good conductivity, and this condition is satisfied at 50°C or higher. The higher the liquid temperature is, the better the uniformity is, but at temperatures above 100°C, operational simplicity is lost and this is not appropriate.
二酸化チタン水懸濁液中に被覆しようとする添
加金属塩水溶液とアンモニア水溶液とを懸濁液の
PHを５〜９好ましくは6.5〜8.5に維持して同時添
加することは本発明の最も重要な点であるが、こ
れは塩化アンチモンの優先加水分解を防止し、塩
化インチモンと塩化スズが同時に均一沈着するた
めに必要な処理である。 Addition metal salt aqueous solution and ammonia aqueous solution to be coated in titanium dioxide aqueous suspension are added to the suspension.
The most important point of the present invention is to maintain the pH between 5 and 9, preferably between 6.5 and 8.5, and to prevent the preferential hydrolysis of antimony chloride and to uniformly add both antimony chloride and tin chloride at the same time. This is a necessary treatment for deposition.
なおアンモニア水溶液を添加する代りにアンモ
ニアガスを吹き込むことによつても同様な結果が
得られる。一方懸濁液のPHを５〜９に維持するた
めKOH、NaOH等の水酸化アルカリを使用する
ことは前記の如く被覆粉末の比抵抗を増大する結
果を生じるため適当でない。 Note that similar results can be obtained by blowing ammonia gas instead of adding an ammonia aqueous solution. On the other hand, it is not appropriate to use an alkali hydroxide such as KOH or NaOH to maintain the pH of the suspension at 5 to 9, as this increases the specific resistance of the coated powder as described above.
被覆層のアンチモン含有量について１％以下で
は良好な導電性を確保することができず、一方含
有量が多くなると導電性は良くなるが、粉末の白
度が失われて青黒くなるためアンチモン含有量を
１〜20重量％と定めた。 Regarding the antimony content of the coating layer, if the antimony content is less than 1%, good conductivity cannot be ensured.On the other hand, if the antimony content increases, the conductivity will improve, but the whiteness of the powder will be lost and the powder will become blue-black. was set at 1 to 20% by weight.
被覆層の処理量はアンチモン含有量との関係か
ら５％以下では良好な導電性を確保できず、処理
量の増大につれて導電性は向上するが経済的な理
由から上限を50重量％とした。 If the treatment amount of the coating layer is less than 5% due to the relationship with the antimony content, good conductivity cannot be ensured.As the treatment amount increases, the conductivity improves, but for economic reasons, the upper limit was set at 50% by weight.
なお上記説明中及び下記実施例に示した白色導
電性粉末の比抵抗は、粉末を280Kg／cm2で圧縮成
型後横河ヒユーレツトパツカード社製のユニバー
サルブリツジを用いて電気抵抗値を測定し比抵抗
に換算したものであり、一方Ｌ値の測定には、日
本電色工業(株)製のND−101DC型測色色差計を用
い、粉末を100Kg／cm2で圧縮成型した試料を供試
した。 Note that the specific resistance of the white conductive powder shown in the above explanation and the following examples is determined by compression molding the powder at 280 kg/cm 2 and then measuring the electrical resistance value using a universal bridge manufactured by Yokogawa Heuretsu Packard Co., Ltd. On the other hand, the L value was measured using a ND-101DC colorimeter manufactured by Nippon Denshoku Kogyo Co., Ltd., and a sample obtained by compression molding the powder at 100 kg/cm 2 was used to measure the L value. I tried it.
以下に実施例を挙げて本発明をさらに詳細に説
明するが本発明は勿論これらに限定されるもので
はない。 The present invention will be explained in more detail with reference to Examples below, but the present invention is of course not limited to these.
実施例 １
比表面積７m2／ｇのTiO2100ｇを純水1000mlに
撹拌分散させ、温度90℃に加熱保持する。ついで
別途用意した3.7NHCl水溶液75mlにSnCl4・
xH2O（SnCl4・5xH2Oとして98％）34.31ｇ及び
SbCl33.28ｇを溶解した溶液とNH3水溶液とを懸
濁液のPHが８を維持するように１時間かけて同時
滴下した。生成物は過、洗浄後500℃で２時間
加熱処理し、本発明による被覆粉末を製造した。
この結果得られた粉末は、比抵抗350Ω・cm、Ｌ
値86.1を有するものであつた。Example 1 100 g of TiO 2 having a specific surface area of 7 m 2 /g was stirred and dispersed in 1000 ml of pure water, and the mixture was heated and maintained at a temperature of 90°C. Next, add SnCl 4 to 75 ml of a separately prepared 3.7NHCl aqueous solution.
xH 2 O (98% as SnCl 4.5xH 2 O) 34.31g and
A solution in which 3.28 g of SbCl 3 was dissolved and an aqueous NH 3 solution were simultaneously added dropwise over 1 hour so that the pH of the suspension was maintained at 8. After filtering and washing, the product was heated at 500°C for 2 hours to produce a coated powder according to the present invention.
The resulting powder has a specific resistance of 350Ω・cm, L
It had a value of 86.1.
実施例 ２
比表面積５m2／ｇのTiO2100ｇを純水1000mlに
撹拌分散させ、温度70℃に加熱保持する。以下実
施例１と同様に処理し、本発明による被覆粉末を
製造した。この結果得られた粉末は、比抵抗20
Ω・cm、Ｌ値83.7を有するものであつた。Example 2 100 g of TiO 2 having a specific surface area of 5 m 2 /g is stirred and dispersed in 1000 ml of pure water, and the mixture is heated and maintained at a temperature of 70°C. Thereafter, the same treatment as in Example 1 was carried out to produce a coated powder according to the present invention. The resulting powder has a specific resistance of 20
It had an Ω·cm and an L value of 83.7.
実施例 ３
比表面積７m2／ｇのTiO21.3Kgを純水９に撹
拌分散させ、温度70℃に加熱保持する。ついで別
途用意した3.7NHCl水溶液760mlにSnCl4・
xH2O508ｇ及びSbCl342.64ｇを溶解した溶液と
NH3水溶液とを懸濁液のPHが８を維持するよう
に１時間かけて同時滴下した。以下実施例１と同
様に処理し、本発明による被覆粉末を製造した。
この結果得られた粉末は比抵抗280Ω・cm、Ｌ値
88.2を有するものであつた。Example 3 1.3 kg of TiO 2 having a specific surface area of 7 m 2 /g was stirred and dispersed in pure water 9, and the mixture was heated and maintained at a temperature of 70°C. Next, add SnCl 4 to 760 ml of a separately prepared 3.7NHCl aqueous solution.
x A solution containing 508g of H 2 O and 42.64g of SbCl 3
An aqueous NH 3 solution was simultaneously added dropwise over 1 hour to maintain the pH of the suspension at 8. Thereafter, the same treatment as in Example 1 was carried out to produce a coated powder according to the present invention.
The resulting powder has a specific resistance of 280Ω・cm and an L value of
It had a value of 88.2.
Claims (1)
20〜800ｇ／の塩化スズ及び0.2〜174ｇ／の
塩化アンチモンをそれらの加水分解を防ぐに足る
塩酸含有水溶液中に溶解した溶液と、アンモニア
水溶液とを懸濁液のPHが５〜９を維持するように
同時添加することによつて、アンチモンを１〜20
重量％含有し、残りが酸化スズからなる被覆層を
二酸化チタンに対して５〜50重量％被覆処理した
後、熱処理することを特徴とする白色導電性粉末
の製造法。1. In a titanium dioxide aqueous suspension at a temperature of 50 to 100℃,
Suspension of a solution of 20 to 800 g of tin chloride and 0.2 to 174 g of antimony chloride in an aqueous solution containing hydrochloric acid sufficient to prevent their hydrolysis and an ammonia aqueous solution is maintained at a pH of 5 to 9. By adding antimony at the same time as
1. A method for producing a white conductive powder, which comprises coating titanium dioxide with a coating layer of 5 to 50% by weight, with the remainder being tin oxide, followed by heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8982182A JPS58209002A (en) | 1982-05-28 | 1982-05-28 | Method of producing white conductive powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8982182A JPS58209002A (en) | 1982-05-28 | 1982-05-28 | Method of producing white conductive powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58209002A JPS58209002A (en) | 1983-12-05 |
| JPH0370322B2 true JPH0370322B2 (en) | 1991-11-07 |
Family
ID=13981414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8982182A Granted JPS58209002A (en) | 1982-05-28 | 1982-05-28 | Method of producing white conductive powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58209002A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61286221A (en) * | 1985-06-07 | 1986-12-16 | Ishihara Sangyo Kaisha Ltd | Preparation of white electroconductive powder |
| JPS61286224A (en) * | 1985-06-12 | 1986-12-16 | Ishihara Sangyo Kaisha Ltd | Production of electroconductive fine powder |
| JPH0617231B2 (en) * | 1986-11-11 | 1994-03-09 | 石原産業株式会社 | Needle-shaped conductive titanium oxide and method for producing the same |
| JP5552371B2 (en) * | 2010-05-31 | 2014-07-16 | 三菱マテリアル株式会社 | White conductive powder and method for producing the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0025583A1 (en) * | 1979-09-14 | 1981-03-25 | Mitsubishi Materials Corporation | Electroconductive powder and process for production thereof |
| JPS56114218A (en) * | 1980-02-13 | 1981-09-08 | Mitsubishi Metal Corp | Method of manufacturing white conductive composite powder |
| JPS56140028A (en) * | 1980-04-02 | 1981-11-02 | Mitsubishi Metal Corp | Manufacture of white electrically-conductive composite powder |
| JPS5771822A (en) * | 1980-10-24 | 1982-05-04 | Mitsubishi Metal Corp | Production of electrically conductive fine particles |
-
1982
- 1982-05-28 JP JP8982182A patent/JPS58209002A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0025583A1 (en) * | 1979-09-14 | 1981-03-25 | Mitsubishi Materials Corporation | Electroconductive powder and process for production thereof |
| JPS56114218A (en) * | 1980-02-13 | 1981-09-08 | Mitsubishi Metal Corp | Method of manufacturing white conductive composite powder |
| JPS56140028A (en) * | 1980-04-02 | 1981-11-02 | Mitsubishi Metal Corp | Manufacture of white electrically-conductive composite powder |
| JPS5771822A (en) * | 1980-10-24 | 1982-05-04 | Mitsubishi Metal Corp | Production of electrically conductive fine particles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58209002A (en) | 1983-12-05 |
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