JP2000053883A - Granular carbon black for color - Google Patents
Granular carbon black for colorInfo
- Publication number
- JP2000053883A JP2000053883A JP10227856A JP22785698A JP2000053883A JP 2000053883 A JP2000053883 A JP 2000053883A JP 10227856 A JP10227856 A JP 10227856A JP 22785698 A JP22785698 A JP 22785698A JP 2000053883 A JP2000053883 A JP 2000053883A
- Authority
- JP
- Japan
- Prior art keywords
- carbon black
- color
- granular carbon
- amount
- properties
- 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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- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
(57)【要約】
【課題】 ビヒクルやポリマー中への分散性を損ねるこ
となく、汚染性及び作業性の悪化を防止し、優れた着色
性を保有するカラー用粒状カーボンブラックを提供す
る。
【解決手段】 窒素吸着比表面積(N2SA)１００〜１８０
(m2/g)、ＤＢＰ吸油量が４０〜９０(ml/100g) の特性を
有し、造粒粒子の硬さ(IPH) が２〜９ (g/粒) 、トルエ
ン着色透過度(LT)が８５％以上、ベンゼン抽出量が０．
１ (Wt％) 以下の性状を備えることを特徴とするカラー
用粒状カーボンブラック。PROBLEM TO BE SOLVED: To provide a granular carbon black for color having excellent coloring properties, preventing deterioration of stainability and workability without impairing dispersibility in a vehicle or a polymer. SOLUTION: Nitrogen adsorption specific surface area (N 2 SA) 100 to 180
(m 2 / g), DBP oil absorption of 40 to 90 (ml / 100 g), hardness (IPH) of granulated particles of 2 to 9 (g / particle), toluene coloring transmittance (LT ) Is 85% or more and the amount of benzene extracted is 0.1%.
1 (Wt%) A granular carbon black for color, having the following properties.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、インキ、塗料、プ
ラスチック等の分野における黒色顔料として有用される
カラー用粒状カーボンブラックに関する。The present invention relates to granular carbon black for color useful as a black pigment in the fields of inks, paints, plastics and the like.
【０００２】[0002]
【従来の技術】カラー用粒状カーボンブラックは、耐候
性、耐熱性、耐薬品性、着色性等の特性に優れているた
めに、インキ、塗料、プラスチック等の着色用の黒色顔
料として有用されている。このような用途に用いるカー
ボンブラックにはビヒクルやポリマーに容易に分散させ
ることができ、かつ分散状態を安定に維持することので
きる易分散性と分散安定性が必要である。また、これら
の分散性能はカーボンブラックが生成したままの形態で
ある粉末状態であると、より優れた分散性能を発揮する
ことが知られている。2. Description of the Related Art Granular carbon black for color is used as a black pigment for coloring inks, paints, plastics, etc. because of its excellent properties such as weather resistance, heat resistance, chemical resistance and coloring property. I have. Carbon black used in such applications needs easy dispersibility and dispersion stability that can be easily dispersed in a vehicle or a polymer and can stably maintain a dispersed state. Further, it is known that these powders exhibit more excellent dispersion performance when they are in a powder state in which carbon black is still produced.
【０００３】しかしながら、粉末状のカーボンブラック
は極めて飛散し易いために周辺環境を汚染するうえに作
業性を悪化させる難点がある。粉末状のカーボンブラッ
クを造粒して粒状化すれば、飛散による汚染性や作業性
の悪化は防止することができるが、反面分散性能の低下
を招くこととなる。そこで、分散性能を損なうことな
く、粒状化できればハンドリング時の難点を解消するこ
とができる。[0003] However, powdered carbon black is extremely liable to be scattered, so that there is a problem that the surrounding environment is polluted and workability is deteriorated. If the powdered carbon black is granulated and granulated, contamination and workability due to scattering can be prevented, but the dispersion performance is reduced. Therefore, if the particles can be granulated without deteriorating the dispersing performance, it is possible to solve the difficulty in handling.
【０００４】カーボンブラックがビヒクルやポリマー中
へ分散する過程は、カーボンブラック表面をビヒクル
やポリマーで濡らす工程、混練りする際の機械的な剪
断力や衝撃力などによりビヒクルやポリマーで濡れたカ
ーボンブラックをアグリゲートに近い状態に破砕する工
程、破砕されたアグリゲート表面にビヒクルやポリマ
ーが吸着してアグリゲートの凝集を防止する工程、を経
て進行すると考えられている。[0004] The process of dispersing carbon black in a vehicle or a polymer includes the step of wetting the surface of the carbon black with the vehicle or the polymer, and the process of carbon black wetted by the vehicle or the polymer due to mechanical shearing force or impact force during kneading. It is considered that the process proceeds through a step of crushing the aggregate into a state close to the aggregate, and a step of preventing the aggregate of the aggregate by adsorbing the vehicle or the polymer on the surface of the crushed aggregate.
【０００５】このうち、の破砕工程は造粒粒子のペレ
ット性状に関係し、例えば特開昭48−12294 公報にはイ
ンキ用粒状ファーネスカーボンブラックにおいて見掛け
の嵩密度(g/cm3) ＝−0.535 log(吸油量）＋ｂ、但し、
ｂ＝1.34〜1.42の関係を満足するインキ用良分散性粒状
カーボンブラックが提案されている。これは造粒粒子の
ペレット性状を見掛けの嵩密度と吸油量との関係で規制
したものである。Among these, the crushing step relates to the pellet properties of the granulated particles. For example, Japanese Patent Application Laid-Open No. 48-12294 discloses an apparent bulk density (g / cm 3 ) = − 0.535 for granular furnace carbon black for ink. log (oil absorption) + b,
A good dispersible granular carbon black for ink which satisfies the relationship of b = 1.34 to 1.42 has been proposed. This is regulated by the relationship between the apparent bulk density and the oil absorption of the pellet properties of the granulated particles.
【０００６】また、本出願人は、ハンドリング時の粒の
破壊を伴うことなしにビヒクルへ混練する際の分散速度
ならびに分散安定性を改善したカラー用粒状カーボンブ
ラックとして、１０００μm の篩目にかかる粒の重量
〔Ｗ(mg/粒) 〕が、ＤＢＰ吸油量(ml/100g) に対して下
記の関係式を満足するカラー用粒状カーボンブラック。
−0.0025×DBP ＋0.40≦Ｗ≦−0.0025×DBP ＋0.55（特
開平２−115280号公報）を開発、提案した。The present applicant has also proposed a granular carbon black for color having improved dispersion speed and dispersion stability when kneaded into a vehicle without destruction of the particles during handling. The granular carbon black for color, whose weight [W (mg / particle)] satisfies the following relational expression with respect to the DBP oil absorption (ml / 100 g).
−0.0025 × DBP + 0.40 ≦ W ≦ −0.0025 × DBP + 0.55 (JP-A-2-115280) was developed and proposed.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、上記の技術
をベースとして更に研究を進めた結果完成に至ったもの
で、その目的はビヒクルやポリマー中への分散性を損ね
ることなく汚染性や作業性の悪化を防止し、また優れた
着色性を保有するカラー用粒状カーボンブラックを提供
することにある。SUMMARY OF THE INVENTION The present invention has been completed as a result of further research based on the above-mentioned technology, and its purpose is to reduce contamination without impairing dispersibility in vehicles and polymers. An object of the present invention is to provide a granular carbon black for color which prevents deterioration of workability and has excellent coloring properties.
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
めの本発明によるカラー用粒状カーボンブラックは、窒
素吸着比表面積(N2SA)１００〜１８０(m2/g)、ＤＢＰ吸
油量４０〜９０(ml/100g) の特性を有し、造粒粒子の硬
さ(IPH) が２〜９ (g/粒) 、トルエン着色透過度(LT)が
８５％以上、ベンゼン抽出量が０．１ (Wt％) 以下の性
状を備えることを構成上の特徴とする。In order to achieve the above object, the granular carbon black for color according to the present invention has a nitrogen adsorption specific surface area (N 2 SA) of 100 to 180 (m 2 / g) and a DBP oil absorption of 40. ９０90 (ml / 100 g), the hardness (IPH) of the granulated particles is 2-9 (g / grain), the toluene coloring transmittance (LT) is 85% or more, and the benzene extraction amount is 0. 1 (Wt%) It is characterized by having the following properties.
【０００９】[0009]
【発明の実施の形態】本発明のカラー用粒状カーボンブ
ラックは、窒素吸着比表面積(N2SA)が１００〜１８０(m
2/g)、ＤＢＰ吸油量が４０〜９０(ml/100g) の特性を有
していることが必要である。窒素吸着比表面積(N2SA)が
１００m2/gを下回り、ＤＢＰ吸油量が９０ ml/100gを越
えると着色力が小さくなり、黒色顔料として高い着色力
を付与することができなくなる。また、窒素吸着比表面
積(N2SA)が１８０m2/gを越え、ＤＢＰ吸油量が４０ ml/
100g未満の場合には、ビヒクルやポリマー中への分散性
が損なわれ、着色力の向上も見られない。BEST MODE FOR CARRYING OUT THE INVENTION The granular carbon black for color of the present invention has a nitrogen adsorption specific surface area (N 2 SA) of 100 to 180 (m 2 ).
2 / g) and a DBP oil absorption of 40 to 90 (ml / 100 g). If the nitrogen adsorption specific surface area (N 2 SA) is less than 100 m 2 / g, and the DBP oil absorption exceeds 90 ml / 100 g, the coloring power becomes small, and it becomes impossible to give high coloring power as a black pigment. In addition, the nitrogen adsorption specific surface area (N 2 SA) exceeds 180 m 2 / g, and the DBP oil absorption is 40 ml / g.
If the amount is less than 100 g, dispersibility in a vehicle or a polymer is impaired, and no improvement in coloring power is observed.
【００１０】上記の窒素吸着比表面積(N2SA)が１００〜
１８０m2/g、ＤＢＰ吸油量が４０〜９０ ml/100gの特性
に加えて、本発明のカラー用粒状カーボンブラックは造
粒粒子の硬さ(IPH) が２〜９ (g/粒) 、トルエン着色透
過度(LT)が８５％以上、ベンゼン抽出量が０．１ (Wt
％) 以下の性状を備えることが必須の要件となる。The above nitrogen adsorption specific surface area (N 2 SA) is 100 to
In addition to the properties of 180 m 2 / g and a DBP oil absorption of 40 to 90 ml / 100 g, the granular carbon black for color of the present invention has a granulated particle hardness (IPH) of 2 to 9 (g / particle) and toluene. Color transmittance (LT) of 85% or more and benzene extraction of 0.1 (Wt
%) It is essential to have the following properties.
【００１１】造粒粒子の硬さ(IPH) が大きいと、混練り
する際にビヒクルやポリマーに濡れたカーボンブラック
をアグリゲートに近い状態にまで充分に破砕することが
困難となり、良好な分散状態を形成することが難しくな
る。しかしながら、造粒粒子の硬さ(IPH) が小さい場合
にはハンドリング時に破粒して粉状化し易く、飛散によ
る汚染が生じ、作業性が悪化する難点がある。そこで、
本発明は分散性能の低下を抑制しつつ破粒を防止するた
めに、造粒粒子の硬さ(IPH) の値を２〜９g/粒の範囲に
設定するものである。[0011] If the hardness (IPH) of the granulated particles is large, it becomes difficult to sufficiently crush the carbon black wetted by the vehicle or the polymer to a state close to the aggregate during kneading, so that a good dispersion state is obtained. Is difficult to form. However, when the hardness (IPH) of the granulated particles is low, there is a problem that the particles are easily broken and powdered at the time of handling, contamination by scattering occurs, and workability deteriorates. Therefore,
In the present invention, the value of hardness (IPH) of the granulated particles is set in the range of 2 to 9 g / particle in order to prevent the crushing while suppressing the deterioration of the dispersion performance.
【００１２】また、カーボンブラックは、その生成過程
において原料炭化水素の熱分解によりカーボンブラック
の前駆体となる多環芳香族炭化水素が形成され、この多
環芳香族炭化水素が更に熱処理を受けて、カーボンブラ
ックに転化するプロセスで生成するとされている。この
プロセスにおいて、多環芳香族炭化水素の極微量がカー
ボンブラック粒子表面に吸着されて残留する場合があ
る。このような原料炭化水素の熱分解生成物である多環
芳香族炭化水素などがカーボンブラック粒子表面に残留
すると、ビヒクルやポリマー中への分散が損なわれるば
かりではなく、安全衛生上も好ましくない。In the process of producing carbon black, a polycyclic aromatic hydrocarbon which is a precursor of the carbon black is formed by the thermal decomposition of the raw material hydrocarbon, and the polycyclic aromatic hydrocarbon is further subjected to a heat treatment. Is produced by a process of converting carbon black. In this process, a trace amount of the polycyclic aromatic hydrocarbon may be adsorbed on the surface of the carbon black particles and may remain. If polycyclic aromatic hydrocarbons and the like, which are the thermal decomposition products of such raw hydrocarbons, remain on the surface of the carbon black particles, the dispersion in the vehicle or polymer is not only impaired, but also unfavorable in terms of safety and health.
【００１３】本発明は、カーボンブラック粒子表面に吸
着される多環芳香族炭化水素などの残留量を規制するこ
とにより、分散性能の向上を図るとともに人体に対する
安全衛生上の問題点の排除を図るものである。すなわ
ち、トルエン着色透過度(LT)の値は８５％以上、ベンゼ
ン抽出量の値は０．１Wt％以下の性状に設定される。ト
ルエン着色透過度(LT)の値は大きいほど多環芳香族炭化
水素などの残留量が少ないことを示しており、この値が
８５％未満では残留量が多くなり、優れた分散性能を付
与することが困難となる。また、ベンゼン抽出量は多い
ほど多環芳香族炭化水素などの残留量も多いこととな
り、分散性能が低下し、安全衛生上の問題も生じる。こ
れらの観点から、本発明のカラー用粒状カーボンブラッ
クではトルエン着色透過度(LT)が８５％以上、ベンゼン
抽出量は０．１Wt％以下の値に設定される。[0013] The present invention aims to improve the dispersing performance and to eliminate human health and safety problems by regulating the residual amount of polycyclic aromatic hydrocarbons and the like adsorbed on the surface of carbon black particles. Things. That is, the value of the toluene coloring transmittance (LT) is set to 85% or more, and the value of the benzene extraction amount is set to 0.1 Wt% or less. The higher the value of the toluene coloring transmittance (LT), the lower the residual amount of polycyclic aromatic hydrocarbons and the like. If the value is less than 85%, the residual amount increases, and excellent dispersion performance is provided. It becomes difficult. In addition, as the amount of benzene extracted increases, the residual amount of polycyclic aromatic hydrocarbons and the like also increases, and the dispersing performance deteriorates, which causes a problem in health and safety. From these viewpoints, in the granular carbon black for color of the present invention, the toluene coloring transmittance (LT) is set to a value of 85% or more and the benzene extraction amount is set to a value of 0.1 Wt% or less.
【００１４】なお、これらの特性は下記の方法によっ
て、測定された値である。 窒素吸着比表面積(N2SA)；ＡＳＴＭ Ｄ3037-88 “St
andard Test Method for Carbon Black-Surface Area b
y Nitrogen Absorption ”Method Bによる。 ＤＢＰ吸油量；ＪＩＳ Ｋ6217-97 「ゴム用カーボン
ブラックの基本性能の試験方法」９項Ａ法による。 造粒粒子の硬さ(IPH) ；ＪＩＳ Ｋ6219-97 「ゴム用
カーボンブラックの造粒物の性質の試験方法」７項によ
る。 トルエン着色透過度(LT)；ＪＩＳ Ｋ6218-97 「ゴム
用カーボンブラックの付随的性質の試験方法」８項によ
る。 ベンゼン抽出量；カーボンブラック１０g をベンゼン
（試薬特級）によりソックスレー抽出器により２４時間
抽出し、抽出溶液を蒸発乾固して残渣の重量より求め
る。These characteristics are values measured by the following method. Nitrogen adsorption specific surface area (N 2 SA); ASTM D3037-88 “St
andard Test Method for Carbon Black-Surface Area b
y Nitrogen Absorption "Method B. DBP oil absorption; JIS K6217-97" Test method for basic performance of carbon black for rubber "Method A, Section 9. Hardness of granulated particles (IPH): According to JIS K6219-97 "Test method for properties of granulated material of carbon black for rubber", section 7. Toluene color transmittance (LT): According to JIS K6218-97 "Test method for incidental properties of carbon black for rubber", section 8. Benzene extraction amount: 10 g of carbon black was extracted with benzene (special grade reagent) using a Soxhlet extractor for 24 hours, the extracted solution was evaporated to dryness, and the residue was determined from the weight of the residue.
【００１５】これらの特性を備えた本発明のカラー用粒
状カーボンブラックは、ファーネスブラックの製造時に
空気量、燃料油量、原料油量などを制御し、また造粒、
乾燥条件などを制御することによって得ることができ
る。The granular carbon black for color according to the present invention having these characteristics controls the amount of air, the amount of fuel oil, the amount of raw material oil, etc. during the production of furnace black,
It can be obtained by controlling the drying conditions and the like.
【００１６】[0016]
【実施例】以下、本発明の実施例を比較例と対比して具
体的に説明する。EXAMPLES Examples of the present invention will be specifically described below in comparison with comparative examples.
【００１７】実施例１〜３、比較例１〜４ カーボンブラック製造炉に供給する空気量、燃料油量、
原料油量、添加剤量などを制御して窒素吸着比表面積(N
2SA)およびＤＢＰ吸油量の異なるカーボンブラックを発
生し、次いで湿式造粒法により造粒機のピン回転数、造
粒機への粉末カーボンブラック供給量、造粒水分及び乾
燥温度、乾燥時間などを変更して、造粒粒子の硬さ(IP
H) 、トルエン着色透過度(LT)、ベンゼン抽出量などの
異なるカーボンブラックを得た。Examples 1 to 3 and Comparative Examples 1 to 4 The amount of air and the amount of fuel oil supplied to the carbon black production furnace
The nitrogen adsorption specific surface area (N
2 SA) and carbon black with different DBP oil absorption are generated, and then the number of pin rotations of the granulator, the amount of powdered carbon black supplied to the granulator, the granulation moisture and drying temperature, the drying time, etc. by wet granulation. The hardness of the granulated particles (IP
H), different carbon blacks such as toluene color transmittance (LT) and benzene extraction amount were obtained.
【００１８】これらのカーボンブラックを容量２５０ml
のラボプラストミル〔東洋精機（株）製〕を用いて、表
１に示した配合割合によりＬＤＰＥ（低密度ポリエチレ
ン）に配合した。配合は１２０℃の温度でラボプラスト
ミルの回転数５０rpm で２０分間混練りし、練り上げた
ものを温度１８０℃、圧力５０kg/cm2でプレス成形し
た。Each of these carbon blacks has a capacity of 250 ml.
Was mixed with LDPE (low-density polyethylene) at the mixing ratios shown in Table 1 using a Labo Plastomill manufactured by Toyo Seiki Co., Ltd. The mixture was kneaded at a temperature of 120 ° C. at a rotation speed of a Labo Plastomill of 50 rpm for 20 minutes, and the kneaded product was press-molded at a temperature of 180 ° C. and a pressure of 50 kg / cm 2 .
【００１９】[0019]
【表１】 [Table 1]
【００２０】このようにしてカーボンブラックが配合さ
れ、黒色に着色されたＬＤＰＥコンパウンドについて、
下記の方法により着色力及び分散性を測定した。得られ
た結果をカーボンブラックの特性とともに表２に示し
た。 着色力（Ｌ* ）；色彩色差計〔ミノルタカメラ（株）
製、CR-200〕により測定。この値が小さくなるほど濃く
着色（黒色）されたことになる。 分散性：カーボンブラックを１．７重量％の割合で配
合したＬＤＰＥコンパウンドを熱プレスして約１７μm
の薄膜を作製し、直径約１３mmの薄膜中で最も分散不良
な視野を選び、１．３mm×１．３mm中の未分散塊を計測
して面積指数を算出した。なお、面積指数１は１３μm
×１３μm ＝１６９μm に相当する。The carbon black is blended in this way, and the LDPE compound colored black is
The coloring power and dispersibility were measured by the following methods. The results obtained are shown in Table 2 together with the characteristics of the carbon black. Coloring power (L * ); color difference meter [Minolta Camera Co., Ltd.
Manufactured by CR-200]. The smaller the value, the deeper the color (black). Dispersibility: LDPE compound containing carbon black in a ratio of 1.7% by weight was hot pressed to about 17 μm.
The thin film having a diameter of about 13 mm was selected, and the field of poor dispersion was selected from among the thin films having a diameter of about 13 mm. The area index 1 is 13 μm
× 13 µm = 169 µm.
【００２１】[0021]
【表２】 [Table 2]
【００２２】表２の結果から、本発明の特性、性状を備
えたカーボンブラックを配合した実施例のＬＤＰＥコン
パウンドは、比較例のＬＤＰＥコンパウンドに比べて、
未分散塊を示す面積指数が小さく、分散性に優れてお
り、その着色力もＮ2 ＳＡが大きい（すなわち、粒子径
が小さい）比較例４と同等レベルにあることが認めら
れ、分散性能及び着色力がバランスよく付与されている
ことが判る。また、造粒粒子の硬さが大きい比較例１、
２、４では分散性能が低下が著しいことが認められる。From the results shown in Table 2, the LDPE compounds of the examples in which the carbon black having the properties and properties of the present invention were blended were compared with the LDPE compounds of the comparative examples.
The area index indicating the undispersed mass was small, the dispersibility was excellent, and the coloring power was also found to be at the same level as Comparative Example 4 in which N 2 SA was large (that is, the particle size was small). It can be seen that the force is applied in a well-balanced manner. Comparative Example 1 in which the hardness of the granulated particles was large,
In Nos. 2 and 4, it is recognized that the dispersion performance is significantly reduced.
【００２３】[0023]
【発明の効果】以上のとおり、本発明のカラー用粒状カ
ーボンブラックによれば、ビヒクルやポリマー中への分
散性能を損ねることなく粒状化されているのでハンドリ
ング時の汚染性や作業性の悪化が防止され、また優れた
着色性が付与される。したがって、インキ、塗料、プラ
スチック等の分野における黒色顔料として極めて有用で
ある。As described above, the granular carbon black for color of the present invention is granulated without impairing the dispersing performance in a vehicle or a polymer, so that contamination and workability during handling are deteriorated. Is prevented and excellent coloring properties are imparted. Therefore, it is extremely useful as a black pigment in the fields of ink, paint, plastic and the like.
Claims (1)
(m2/g)、ＤＢＰ吸油量４０〜９０(ml/100g) の特性を有
し、造粒粒子の硬さ(IPH) が２〜９ (g/粒)、トルエン
着色透過度(LT)が８５％以上、ベンゼン抽出量が０．１
(Wt％) 以下の性状を備えることを特徴とするカラー用
粒状カーボンブラック。1. A nitrogen adsorption specific surface area (N 2 SA) of 100 to 180.
(m 2 / g), DBP oil absorption of 40 to 90 (ml / 100 g), hardness (IPH) of granulated particles is 2 to 9 (g / particle), toluene color permeability (LT) Is 85% or more and the amount of benzene extracted is 0.1
(Wt%) A granular carbon black for color, having the following properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10227856A JP2000053883A (en) | 1998-08-12 | 1998-08-12 | Granular carbon black for color |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10227856A JP2000053883A (en) | 1998-08-12 | 1998-08-12 | Granular carbon black for color |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000053883A true JP2000053883A (en) | 2000-02-22 |
Family
ID=16867445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10227856A Pending JP2000053883A (en) | 1998-08-12 | 1998-08-12 | Granular carbon black for color |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000053883A (en) |
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|---|---|---|---|---|
| JP2007199677A (en) * | 2005-12-28 | 2007-08-09 | Konica Minolta Business Technologies Inc | Development roller and developing method using thereof |
| JP2010509466A (en) * | 2006-11-07 | 2010-03-25 | キャボット コーポレイション | Carbon black having low PAH content and production method |
| WO2011007730A1 (en) * | 2009-07-17 | 2011-01-20 | 東海カーボン株式会社 | Process for producing dispersion of surface-treated carbon black powder and process for producing surface-treated carbon black powder |
| JP2011068892A (en) * | 2009-09-28 | 2011-04-07 | Evonik Degussa Gmbh | Carbon black, method for manufacturing the same and use thereof |
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1998
- 1998-08-12 JP JP10227856A patent/JP2000053883A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007199677A (en) * | 2005-12-28 | 2007-08-09 | Konica Minolta Business Technologies Inc | Development roller and developing method using thereof |
| JP2010509466A (en) * | 2006-11-07 | 2010-03-25 | キャボット コーポレイション | Carbon black having low PAH content and production method |
| US8710136B2 (en) | 2006-11-07 | 2014-04-29 | Cabot Corporation | Carbon blacks having low PAH amounts and methods of making same |
| JP2015092001A (en) * | 2006-11-07 | 2015-05-14 | キャボット コーポレイションＣａｂｏｔ Ｃｏｒｐｏｒａｔｉｏｎ | Carbon blacks having low pah amounts and methods of making the same |
| WO2011007730A1 (en) * | 2009-07-17 | 2011-01-20 | 東海カーボン株式会社 | Process for producing dispersion of surface-treated carbon black powder and process for producing surface-treated carbon black powder |
| CN102471609A (en) * | 2009-07-17 | 2012-05-23 | 东海炭素株式会社 | Method for producing surface-treated carbon black powder dispersion and method for producing surface-treated carbon black powder |
| CN102471609B (en) * | 2009-07-17 | 2013-11-06 | 东海炭素株式会社 | Process for producing dispersion of surface-treated carbon black powder and process for producing surface-treated carbon black powder |
| JP5392632B2 (en) * | 2009-07-17 | 2014-01-22 | 東海カーボン株式会社 | Method for producing surface-treated carbon black powder dispersion and method for producing surface-treated carbon black powder |
| US8728432B2 (en) | 2009-07-17 | 2014-05-20 | Tokai Carbon Co., Ltd. | Process for producing dispersion of surface-treated carbon black powder, and process for producing surface-treated carbon black powder |
| JP2011068892A (en) * | 2009-09-28 | 2011-04-07 | Evonik Degussa Gmbh | Carbon black, method for manufacturing the same and use thereof |
| CN116390998A (en) * | 2020-12-04 | 2023-07-04 | 电化株式会社 | Carbon black, slurry and lithium ion secondary battery |
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