JPH0641540B2 - Carbon black for tire tread rubber - Google Patents
Carbon black for tire tread rubberInfo
- Publication number
- JPH0641540B2 JPH0641540B2 JP63284374A JP28437488A JPH0641540B2 JP H0641540 B2 JPH0641540 B2 JP H0641540B2 JP 63284374 A JP63284374 A JP 63284374A JP 28437488 A JP28437488 A JP 28437488A JP H0641540 B2 JPH0641540 B2 JP H0641540B2
- Authority
- JP
- Japan
- Prior art keywords
- carbon black
- rubber
- oil absorption
- surface area
- tire tread
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/50—Furnace black ; Preparation thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ゴム成分に配合して良好な耐摩耗性と相対的
に著しく低位の発熱性を付与することができるタイヤト
レッドゴム用カーボンブラックに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a carbon black for a tire tread rubber, which can be blended with a rubber component to provide good wear resistance and relatively significantly low exothermicity. Regarding
カーボンブラックによるゴムの補強性能は、従来からそ
の比表面積（粒子径）やストラクチャーが支配的な因子
として考えられており、具備特性に応じた多様な品種が
ある。そして、ゴム成分との配合にあたっては、用途部
材に適合する品種特性のカーボンブラックが選択使用さ
れている。例えばタイヤトレッド部のような苛酷な走行
条件下で、高度の耐摩耗性が要求されるゴム部材には、
Ｎ１１０、Ｎ２２０などのハード系カーボンブラックが
適用されている。It has been conventionally considered that the specific surface area (particle diameter) and the structure of the reinforcing performance of rubber with carbon black are the dominant factors, and there are various types according to the characteristics of the rubber. When blending with the rubber component, carbon black having a variety of characteristics suitable for the intended member is selectively used. For example, for rubber members that require a high degree of wear resistance under severe driving conditions such as tire treads,
Hard carbon black such as N110 and N220 is applied.
しかし近年タイヤ走行の高苛酷化により、タイヤトレッ
ド部に要求される性能も高度化し、とくに高耐摩耗性と
低発熱性とを兼ね備えることが重要とされている。However, in recent years, due to the severer tire running, the performance required for the tire tread has become more sophisticated, and it is particularly important to have both high wear resistance and low heat buildup.
一般に、カーボンブラックの比表面積やストラクチャー
が大きい程耐摩耗性は増大するが、反面、発熱性が高く
なり、両特性には二律背反的関係がある。従って、ゴム
組成物に高耐摩耗性と低発熱性とを同時に付与すること
は極めて困難である。Generally, the larger the specific surface area and the structure of carbon black, the more the abrasion resistance increases, but on the other hand, the heat generation property increases, and both characteristics have a trade-off relationship. Therefore, it is extremely difficult to impart high abrasion resistance and low heat buildup to the rubber composition at the same time.
この問題を解決するために、特定の性質を有するカーボ
ンブラックを適用する試みが種々提案されている（特公
昭53-34149号、特開昭63-112638号など）。In order to solve this problem, various attempts to apply carbon black having specific properties have been proposed (Japanese Patent Publication No. 53-34149, Japanese Patent Publication No. 63-112638, etc.).
しかし、従来提案されている選択的特性のカーボンブラ
ックを配合したゴム組成物は、未だ耐摩耗性と発熱性と
を良好なレベルに保有させるには不充分な面があり、一
層の改良が要望されている。However, conventionally proposed rubber compositions containing carbon black having selective properties are still insufficient to retain wear resistance and heat buildup at good levels, and further improvement is desired. Has been done.
本発明は、上記の問題点を解消する目的で従来技術とは
別異な角度から研究を重ねた結果、一定のストラクチャ
ー水準をもつアグリゲートにおいて相対的に小さな凝集
体空隙を有するカーボンブラックをゴム成分に配合する
と背反ゴム性能（高耐摩耗性と低発熱性の併有）が効果
的に進行するとの知見を得て開発に至ったものである。The present invention has conducted research from a different angle from the prior art for the purpose of solving the above-mentioned problems, and as a result, a carbon black rubber having relatively small aggregate voids in an aggregate having a constant structure level is used as a rubber component. It was developed based on the knowledge that anti-rubber performance (having both high abrasion resistance and low heat build-up) effectively progresses when compounded in.
すなわち、本発明により提供されるタイヤトレッドゴム
用カーボンブラックは、窒素吸着比表面積（Ｎ2ＳＡ）
が60〜160m2／ｇ、ＤＢＰ吸油量が90〜150m／100ｇの
ハード系領域に属し、かつ凝集体空隙容積Ｖｐ（ｍ／
ｇ）が〔0.00976×ＤＢＰ吸油量−0.1309〕式により算
出される値以下の選択的特性を有することを特徴とす
る。That is, the carbon black for tire tread rubber provided by the present invention has a nitrogen adsorption specific surface area (N 2 SA)
Of 60 to 160 m 2 / g and a DBP oil absorption of 90 to 150 m / 100 g belong to the hard system region, and the aggregate void volume Vp (m /
g) has a selective characteristic equal to or less than the value calculated by the formula [0.00976 × DBP oil absorption-0.1309].
上記カーボンブラックの特性項目のうち、窒素吸着比表
面積（Ｎ2ＳＡ）が60〜160m2／ｇの粒子範囲およびＤＢ
Ｐ吸油量90〜150m／100ｇのストラクチャー範囲は通
常品種のハード系領域に属し、配合ゴムに高度の耐摩耗
性を付与するための前提要件となる。この窒素吸着比表
面積（Ｎ2ＳＡ）が60m2／ｇ未満となり、ＤＢＰ吸油量
が90m／100ｇを下廻るとタイヤトレッドとして耐え得
る高耐摩耗性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160m2／ｇを越える場合に
は、ゴム成分への分散が悪化して耐摩耗性の向上を阻害
し、同時に発熱性の増大を招く。他方、ＤＢＰ吸油量が
150m／100ｇを上廻るとアイススキッド性能が低下す
るため好ましくない。Among the characteristic items of the above carbon black, the range of particles having a nitrogen adsorption specific surface area (N 2 SA) of 60 to 160 m 2 / g and DB
The structure range with a P oil absorption of 90 to 150 m / 100 g belongs to the hard region of a normal product and is a prerequisite for imparting a high degree of abrasion resistance to the compounded rubber. When the nitrogen adsorption specific surface area (N 2 SA) is less than 60 m 2 / g and the DBP oil absorption amount is less than 90 m / 100 g, it becomes impossible to impart high wear resistance that the tire tread can withstand. Further, when the nitrogen adsorption specific surface area (N 2 SA) exceeds 160 m 2 / g, the dispersion in the rubber component is deteriorated and the abrasion resistance is hindered from being improved, and at the same time, the exothermic property is increased. On the other hand, the DBP oil absorption is
If it exceeds 150 m / 100 g, the ice skid performance is deteriorated, which is not preferable.
〔0.00976×ＤＢＰ吸油量−0.1309〕式により導き出さ
れる凝集体空隙容積Ｖｐ（ｍ／ｇ）に関する選択特性
は、本発明を構成するカーボンブラックがアグリゲート
間の細孔容積が小さいこと、換言すれば従来の同等品種
のカーボンブラックに比べ異方性が小さいことによって
特長づけられる。[0.00976 × DBP oil absorption-0.1309] The selective property regarding the aggregate void volume Vp (m / g) derived from the formula is that the carbon black constituting the present invention has a small pore volume between aggregates, in other words. It is characterized by having smaller anisotropy than the conventional equivalent carbon black.
そして、凝集体空隙容積Vp(m/g)が上式により算出さ
れる値以下であるカーボンブラックは、異方性が小さい
特有のアグリゲート構造がゴム成分との配合過程で相互
作用を効率よく改善する機能を営み、この作用を介して
窒素吸着比表面積およびＤＢＰ吸油量が同等水準にある
従来品種のカーボンブラック配合時と同等の耐摩耗性を
維持しながら相対的に低位の発熱性を付与することが可
能となる。And, carbon black in which the aggregate void volume Vp (m / g) is less than or equal to the value calculated by the above formula, the anisotropy is small and the unique aggregate structure efficiently interacts with the rubber component during the compounding process. Performs the function of improving, and through this action, imparts a relatively low level of heat generation while maintaining the same wear resistance as when blending conventional types of carbon black with a nitrogen adsorption specific surface area and DBP oil absorption at the same level. It becomes possible to do.
本発明に適用されるカーボンブラックの各特性値は、下
記の測定方法によって得られる値とする。Each characteristic value of carbon black applied to the present invention is a value obtained by the following measuring method.
(1)窒素吸着比表面積（Ｎ2ＳＡ） ＡＳＴＭ Ｄ３０３７−７８“Standard Methods of Te
sting Carbon Black Surface Area by Nitrogen Adsorp
tion”Ｍｅｔｈｅｄ Ｂによる。(1) a nitrogen adsorption specific surface area (N 2 SA) ASTM D3037-78 " Standard Methods of Te
sting Carbon Black Surface Area by Nitrogen Adsorp
tion ”by Methed B.
この方法で測定したＩＲＢ＃５の窒素吸着比表面積（Ｎ
2ＳＡ）は、80.3m2／ｇとなる。IRB # 5 nitrogen adsorption specific surface area (N
2 SA) is 80.3 m 2 / g.
(2)ＤＢＰ吸油量 ＪＩＳ Ｋ6221(1975)「ゴム用カーボンブラックの試験
方法」６・１・２項の吸油量Ａ法によって得られた値と
する。(2) DBP oil absorption amount It is the value obtained by the oil absorption amount A method of JIS K6221 (1975) "Testing method of carbon black for rubber", 6.1.2.
(3)凝集体空隙容積Ｖｐ（ｍ／ｇ） ＪＩＳ Ｋ6221(1985)「乾燥試料の作り方」に従って乾
燥処理したカーボンブラック（粒度250〜500μｍ造粒
品）を試料として、水銀ポロシメーター（マイクロメリ
ティクス社製、PORE SIZER 9300）を用いて凝集体空隙
径を測定し、次式により得られる凝集体空隙径0.006〜
7.2μまでの空隙径の異積容積を凝集体空隙容積Ｖｐと
する。(3) Aggregate void volume Vp (m / g) A mercury porosimeter (Micromeritics Co., Ltd.) was used as a sample of carbon black (granulated product having a particle size of 250 to 500 μm) dried according to JIS K6221 (1985) “How to prepare a dried sample”. Manufactured by PORE SIZER 9300) to measure the pore size of the aggregate, and obtain the aggregate void size of 0.006 ~
The volume of different volume of the void diameter up to 7.2μ is defined as the aggregate void volume Vp.
但し、上式において、Ｘ1は25psiでの指示値（ＰＦ）、
Ｘ2は終点での指示値（ｐＦ）、Ｘ2は終点30,000psiで
の指示値（ｐＦ）、ＣＦはセルによって決定される定
数、Ｗはカーボンブラック試料の重量である。なお、ｐ
Ｆ（単位：ピコファラド）は、装置のセル内部の水銀と
セル外部の電極間の静電容量として指示される値で、こ
の静電容量の変化から圧入水銀量が算出される。 However, in the above formula, X 1 is the indicated value (PF) at 25 psi,
X 2 is the end point reading (pF), X 2 is the end point 30,000 psi reading (pF), CF is a constant determined by the cell, and W is the weight of the carbon black sample. Note that p
F (unit: picofarad) is a value indicated as the capacitance between the mercury inside the cell of the device and the electrode outside the cell, and the amount of press-fitted mercury is calculated from the change in this capacitance.
これらの特性を具備するカーボンブラックは、頭部に燃
焼バーナーおよび原料油噴射ノズルを備える燃焼室とこ
れに連続する熱分解導管とから構成された発生部を２系
列設け、両発生部の熱分解導管を円筒状の主反応ゾーン
に収斂会合したＹ字型構造のオイルファーネス炉を用
い、別系列で発生したカーボンブラック中間生成ガス流
を主反応ゾーンに同時に高速導入して相互衝突させる方
法（特公昭62-10581号）によって製造することができ
る。The carbon black having these characteristics is provided with two series of generating units each including a combustion chamber having a combustion burner and a raw oil injection nozzle at its head and a pyrolysis conduit continuous with the combustion chamber. A method of using a Y-shaped oil-furnace furnace with a conduit converging and converging in a cylindrical main reaction zone, simultaneously introducing high-speed carbon black intermediate product gas streams into the main reaction zone at the same time to cause mutual collision (special It can be produced according to Kosho 62-10581).
この際、凝集体空隙容積Ｖｐの調整は、主に操業条件と
して全空気供給量、燃料油供給量、燃料燃焼率および原
料油導入量を発生部系列で変動させることにより、また
窒素吸着比表面積（Ｎ2ＳＡ）およびＤＢＰ吸油量の調
整は主に炉内燃焼条件、生成カーボンブラック流の炉内
滞留時間などを制御することによって行われる、 上記のカーボンブラックは、常法に従い天然ゴム、スチ
レンブタジエンゴム、ポリブタジエンゴム、イソプレン
ゴム、ブチルゴム、その他常用カーボンブラックで補強
可能な各種合成ゴム、混合ゴムなどのエラストマーに配
合される。カーボンブラックの配合比率は、ゴム成分10
0重量部に対し35〜100重量部の割合とし、加硫剤、加硫
促進剤、老化防止剤、加硫助剤、軟化剤、可塑剤等の必
要成分とともに添加混練してタイヤトレッド用ゴム組成
物を得る。At this time, the aggregate void volume Vp is adjusted mainly by changing the total air supply amount, the fuel oil supply amount, the fuel combustion rate, and the feedstock oil introduction amount as operating conditions in the generation part series, and also by adjusting the nitrogen adsorption specific surface area. The adjustment of (N 2 SA) and DBP oil absorption is performed mainly by controlling the combustion conditions in the furnace, the residence time in the furnace of the produced carbon black flow, and the like. It is blended with elastomers such as butadiene rubber, polybutadiene rubber, isoprene rubber, butyl rubber, various synthetic rubbers that can be reinforced with commonly used carbon black, and mixed rubbers. The compounding ratio of carbon black is 10 rubber components.
A rubber for a tire tread by mixing and kneading with necessary components such as a vulcanizing agent, a vulcanization accelerator, an antiaging agent, a vulcanization aid, a softening agent and a plasticizer in a proportion of 35 to 100 parts by weight relative to 0 parts by weight. Obtain the composition.
凝集体空隙容積Ｖｐが小さいカーボンブラックは本質的
にストラクチャーの発達が抑制されたアグリゲート構造
をもっており、ゴムに配合した際に発熱性を低下させる
機能があるが、特にこの凝集体空隙容積Ｖｐが〔0.0097
6×ＤＢＰ吸油量−0.1309〕値以下の特性要件を満す場
合にはカーボンブラックの異方性が小さくなり、この作
用によってゴム成分の発熱性を著しく低下させる。この
機能が前提特性として窒素吸着比表面積（Ｎ2ＳＡ）60
〜160m2／ｇおよびＤＢＰ吸油量90〜150m／100ｇによ
る要件と相乗的に作用して、ゴム成分に対し良好な耐摩
耗性を損ねることなしに効果的な低発熱性を付与するこ
とを実現する。Carbon black having a small aggregate void volume Vp essentially has an aggregate structure in which the development of the structure is suppressed, and has the function of lowering the heat generation property when compounded with rubber, but especially this aggregate void volume Vp is 〔0.0097
When the characteristic requirement of 6 × DBP oil absorption-0.1309] value or less is satisfied, the anisotropy of carbon black becomes small, and this action remarkably lowers the heat buildup of the rubber component. This function is based on the premise that the nitrogen adsorption specific surface area (N 2 SA) 60
~ 160m 2 / g and DBP oil absorption 90 ~ 150m / 100g synergistically work to realize effective low heat buildup without damaging good wear resistance to rubber component To do.
以下、本発明の実施例を比較例と対比して説明する。 Hereinafter, examples of the present invention will be described in comparison with comparative examples.
(1)カーボンブラックの製造 頭部にウインドボックスを介して燃焼バーナーおよび原
料油噴射ノズルを同軸的に装着した燃焼室（内径400m
m、長さ800mm、このうち円錐部分200mm）と熱分解導管
（内径60mm、長さ600mm）を備える２系列の発生部を、
内径200mm、長さ2000mmの後段広径部位と内径90mm、長
さ900mmの前段狭径部位を連設した主反応ゾーンの前面
に交角60°で収斂結合させたＹ字型構造のオイルファー
ネス炉を設置した。狭径部位には、交点から50mm下流に
絞り比0.90のリング部材を介設した。(1) Manufacture of carbon black A combustion chamber (inner diameter 400m
m, length 800 mm, cone part 200 mm of this, and two series of generators equipped with pyrolysis conduit (inner diameter 60 mm, length 600 mm)
A Y-shaped oil furnace with a Y-shaped converging connection at a crossing angle of 60 ° in front of the main reaction zone in which a rear wide diameter part with an inner diameter of 200 mm and a length of 2000 mm and a front narrow part with an inner diameter of 90 mm and a length of 900 mm are connected in series installed. A ring member having a drawing ratio of 0.90 was provided 50 mm downstream from the intersection at the narrow diameter portion.
原料油に比重（15/4℃）1.0703、粘度（エングラー、40
/20℃）2.10、ベンゼン不溶分0.03％、相関係数（ＢＭ
ＧＩ）140、初期沸点103℃の芳香族炭化水素油を、また
燃料油としては比重（154℃）0.903、粘度（ＣＳＴ50
℃）16.1、残炭分5.4％、硫黄分1.8％、引火点96℃の炭
化水素油を用いた。Specific gravity (15/4 ℃) 1.0703, viscosity (Engla, 40
/ 20 ℃) 2.10, benzene insoluble matter 0.03%, correlation coefficient (BM
GI) 140, aromatic hydrocarbon oil with an initial boiling point of 103 ° C, and specific gravity (154 ° C) 0.903 as fuel oil, viscosity (CST50
℃) 16.1, hydrocarbon content 5.4%, sulfur content 1.8%, flash point 96 ℃ hydrocarbon oil was used.
上記の反応炉、原料油および燃料油を用い、表Ｉに示し
た発生条件を適用して本発明で使用する特性範囲のカー
ボンブラック（４種類）を製造した。Using the above reaction furnace, feedstock oil, and fuel oil, the generation conditions shown in Table I were applied to produce carbon black (4 types) in the characteristic range used in the present invention.
表Ｉの条件で製造された各カーボンブラックの窒素吸着
比表面積（Ｎ2ＳＡ）、ＤＢＰ吸油量、凝集体空隙容積
Ｖｐおよび〔0.00976×ＤＢＰ吸油量−0.1309〕による
関係式値を表IIに示した。 Table II shows the nitrogen adsorption specific surface area (N 2 SA), DBP oil absorption amount, aggregate void volume Vp, and [0.00976 × DBP oil absorption amount-0.1309] of each carbon black produced under the conditions shown in Table I. It was
なお、表IIのうち比較例として示したRun NO.５〜８
は、従来技術により製造された窒素吸着比表面積（Ｎ2
ＳＡ）60m2／ｇ以上のハード系カーボンブラックで、い
ずれも凝集体空隙容積Ｖｐが本発明の要件を外れるもの
である。In addition, Run NO. 5-8 shown as a comparative example in Table II
Is a nitrogen adsorption specific surface area (N 2
SA) hard carbon black of 60 m 2 / g or more, all of which have an aggregate void volume Vp outside the requirements of the present invention.
(3)ゴム配合 次に、表IIの各種カーボンブラックを表IIIに示す配合
比率で天然ゴムに配合した。 (3) Rubber compounding Next, the various carbon blacks in Table II were compounded in the natural rubber in the compounding ratios shown in Table III.
表IIIの配合物を145℃の温度で40分間加硫して得たゴム
組成物につき、各種のゴム特性を測定した。結果を表II
の配合カーボンブラックRun NO.に対応させて表IVに示
した。 Various rubber properties were measured on the rubber composition obtained by vulcanizing the compound of Table III at a temperature of 145 ° C. for 40 minutes. The results are shown in Table II.
Corresponding to the compounding carbon black Run NO.
なお、ゴム特性の測定方法および測定条件は下記によっ
た。The rubber characteristic measuring method and measuring conditions were as follows.
(1)摩耗量 ランボーン摩耗試験機（機械式スリップ機構）を用い、
次の条件で測定した。(1) Wear amount Using a Lambourn wear tester (mechanical slip mechanism),
The measurement was performed under the following conditions.
試験片：厚さ10mm、外径44mm エメリーホイール：ＧＣタイプ、粒度80、硬度Ｈ 添加カーボンランダム粉：粒度80＃、添加量約９ｇ／分 エメリーホイール面と試験片の相対スリップ率：24％、
60％ 試験片回転数：535rpm 試験荷重：４Kg (2)tan δ Visco Elastic Spectrometer（岩本製作所製）を用い、
次の条件で測定した。Test piece: thickness 10 mm, outer diameter 44 mm Emery wheel: GC type, grain size 80, hardness H added carbon random powder: grain size 80 #, addition amount about 9 g / min Relative slip ratio between emery wheel surface and test piece: 24%,
60% Test piece rotation speed: 535 rpm Test load: 4Kg (2) tan δ Visco Elastic Spectrometer (manufactured by Iwamoto Seisakusho)
The measurement was performed under the following conditions.
試験片：厚さ２mm、長さ30mm、幅５mm 温 度：室 温 周波数：50Hz 動的歪率：±１％ (3)その他 すべてＪＩＳ K6301「一般ゴム物理試験方法」によっ
た。Test piece: Thickness 2 mm, length 30 mm, width 5 mm Temperature: Room temperature Frequency: 50 Hz Dynamic strain rate: ± 1% (3) Others All JIS K6301 "general rubber physical test method".
表IVの結果から、本発明のカーボンブラック特性要件を
満たすカーボンブラックを配合した実施例によるゴム組
成物は、凝集体空隙容積が本発明の関係式値を満たさな
いカーボンブラックを配合した比較例によるゴム組成物
に比べ、同等の窒素吸着比表面積水準において同程度の
耐摩耗性を維持しながら発熱性の指標となる損失係数
（tan δ）が有意に低下していることが認められる。 From the results of Table IV, the rubber composition according to the example in which the carbon black satisfying the carbon black characteristic requirements of the present invention was blended, the aggregate void volume was in accordance with the comparative example in which the carbon black not satisfying the relational expression value of the present invention was blended. It is recognized that the loss coefficient (tan δ), which is an index of exothermicity, is significantly reduced while maintaining the same level of wear resistance at the same nitrogen adsorption specific surface area level as compared with the rubber composition.
〔発明の効果〕 以上のとおり、本発明に係るカーボンブラックはストラ
クチャーの発達が抑制された異方性の小さいアグリゲー
ト構造を有しており、配合ゴムに対して良好な耐摩耗性
と相対的に極めて低位の発熱性を同時に付与することが
できる。したがって、とくに低燃費性が要求されるパッ
センジャー用のタイヤ用トレッドゴムに配合して、その
要求性能を十分に満足しうる有用性がもたらされる。[Effects of the Invention] As described above, the carbon black according to the present invention has an aggregate structure with small anisotropy in which the development of the structure is suppressed, and has good abrasion resistance and relative relative to the compounded rubber. It is possible to impart extremely low heat generation property to the same time. Therefore, when it is blended with a tread rubber for a tire for a passenger, which is particularly required to have low fuel consumption, it is useful enough to satisfy the required performance.
Claims (1)
／ｇ、ＤＢＰ吸油量が90〜150m／100ｇのハード系領
域に属し、かつ凝集体空隙容積Ｖｐ（ｍ／ｇ）が〔0.
00976×ＤＢＰ吸油量−0.1309〕式により算出される値
以下の選択的特性を有するタイヤトレッドゴム用カーボ
ンブラック。1. A nitrogen adsorption specific surface area (N 2 SA) of 60 to 160 m 2.
/ G, the DBP oil absorption amount is 90 to 150 m / 100 g, belongs to the hard system region, and the aggregate void volume Vp (m / g) is [0.
6 × DBP oil absorption-0.1309] A carbon black for a tire tread rubber having a selective characteristic equal to or less than a value calculated by the formula.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63284374A JPH0641540B2 (en) | 1988-11-10 | 1988-11-10 | Carbon black for tire tread rubber |
| FR898912450A FR2638757B1 (en) | 1988-11-10 | 1989-09-22 | CARBON BLACK FOR TIRE TREAD RUBBER |
| KR1019890015709A KR930002760B1 (en) | 1988-11-10 | 1989-10-31 | Carbon black for tire tread rubber |
| US08/063,045 US5320820A (en) | 1988-11-10 | 1993-05-19 | Carbon black for tire tread rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63284374A JPH0641540B2 (en) | 1988-11-10 | 1988-11-10 | Carbon black for tire tread rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02129242A JPH02129242A (en) | 1990-05-17 |
| JPH0641540B2 true JPH0641540B2 (en) | 1994-06-01 |
Family
ID=17677755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63284374A Expired - Fee Related JPH0641540B2 (en) | 1988-11-10 | 1988-11-10 | Carbon black for tire tread rubber |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH0641540B2 (en) |
| KR (1) | KR930002760B1 (en) |
| FR (1) | FR2638757B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2649716B1 (en) * | 1989-07-13 | 1991-12-06 | Tokai Carbon Kk | CARBON BLACK FOR TIRE TREAD RUBBER |
| JP2958898B2 (en) * | 1990-11-01 | 1999-10-06 | 東海カーボン株式会社 | Rubber composition |
| JPH0723435B2 (en) * | 1990-11-26 | 1995-03-15 | 株式会社ブリヂストン | Tread rubber composition for heavy duty tires |
| JPH072866B2 (en) * | 1990-11-30 | 1995-01-18 | 東海カーボン株式会社 | Rubber composition |
| JP2008163212A (en) * | 2006-12-28 | 2008-07-17 | Bridgestone Corp | Rubber composition and pneumatic tire using the same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59140241A (en) * | 1983-01-31 | 1984-08-11 | Tokai Carbon Co Ltd | Rubber composition |
| JPS61133245A (en) * | 1984-11-30 | 1986-06-20 | Yokohama Rubber Co Ltd:The | Rubber composition for tire tread |
| JPS61231037A (en) * | 1985-04-05 | 1986-10-15 | Bridgestone Corp | Rubber composition for tire tread |
| JPS6230137A (en) * | 1985-07-31 | 1987-02-09 | Yokohama Rubber Co Ltd:The | Rubber composition for tire |
| JPH0643517B2 (en) * | 1985-10-23 | 1994-06-08 | 横浜ゴム株式会社 | Rubber composition for large pneumatic tires for high speed |
| JPH0662807B2 (en) * | 1986-05-26 | 1994-08-17 | 株式会社ブリヂストン | Improved rubber composition |
| JPS6397646A (en) * | 1986-10-14 | 1988-04-28 | Yokohama Rubber Co Ltd:The | Rubber composition for tire tread |
| JPH0637582A (en) * | 1992-07-15 | 1994-02-10 | Nec Corp | Saw filter |
-
1988
- 1988-11-10 JP JP63284374A patent/JPH0641540B2/en not_active Expired - Fee Related
-
1989
- 1989-09-22 FR FR898912450A patent/FR2638757B1/en not_active Expired - Fee Related
- 1989-10-31 KR KR1019890015709A patent/KR930002760B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02129242A (en) | 1990-05-17 |
| FR2638757A1 (en) | 1990-05-11 |
| KR900007975A (en) | 1990-06-01 |
| FR2638757B1 (en) | 1991-12-06 |
| KR930002760B1 (en) | 1993-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3810098B2 (en) | Rubber composition | |
| US4478973A (en) | Rubber composition containing furnace carbon black | |
| KR100610593B1 (en) | Hard-type high-structure carbon black and rubber composition comprising same | |
| JPS5986641A (en) | Rubber composition | |
| JP2631994B2 (en) | Carbon black for tire tread | |
| KR930002555B1 (en) | Carbon black for blending of tire tread rubber | |
| KR950004182B1 (en) | Rubber composition | |
| JPH0637580B2 (en) | Carbon black for rubber compounding | |
| US4786677A (en) | Rubber composition containing a carbon black particles having two modal diameters in the aggregate | |
| JPH0641540B2 (en) | Carbon black for tire tread rubber | |
| JPH0637582B2 (en) | Carbon black for tire tread rubber | |
| US5320820A (en) | Carbon black for tire tread rubber | |
| JP3456759B2 (en) | Furnace carbon black | |
| JPH07752B2 (en) | Carbon black for compounding functional parts rubber | |
| JP3790077B2 (en) | Carbon black | |
| KR950009037B1 (en) | Carbon black for tire tread rubber | |
| US5198205A (en) | Carbon black for tire tread rubber | |
| JP2832506B2 (en) | Furnace carbon black | |
| JP2002327134A (en) | Carbon black for tire tread rubber | |
| JPH0649803B2 (en) | Carbon black for tire tread rubber | |
| JP2887722B2 (en) | Rubber composition | |
| JP3152445B2 (en) | Rubber composition | |
| KR910008817B1 (en) | Rubber composition | |
| JPH0735454B2 (en) | Rubber composition for tire tread | |
| JP2649200B2 (en) | Rubber composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080601 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080601 Year of fee payment: 14 |
|
| LAPS | Cancellation because of no payment of annual fees |