JPH07149954A - Tread rubber composition - Google Patents
Tread rubber compositionInfo
- Publication number
- JPH07149954A JPH07149954A JP5296912A JP29691293A JPH07149954A JP H07149954 A JPH07149954 A JP H07149954A JP 5296912 A JP5296912 A JP 5296912A JP 29691293 A JP29691293 A JP 29691293A JP H07149954 A JPH07149954 A JP H07149954A
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- JP
- Japan
- Prior art keywords
- weight
- parts
- rubber composition
- clay
- content
- 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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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Landscapes
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、グリップ性能を保持し
た低燃費タイヤ用トレッドゴムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tread rubber for a fuel-efficient tire that maintains grip performance.
【０００２】[0002]
【従来の技術】自動車タイヤに要求される性能は、低燃
費の他、操縦安定性、耐摩耗性、乗り心地等多岐にわた
り、種々の工夫がなされている。これらの性能のうち、
特にタイヤのグリップ性ところがり抵抗は、いずれもゴ
ムのヒステリシスロスに関する特性である。一般に、ヒ
ステリシスロスを大きくするとグリップ力は高くなり、
制動性能が向上するが、転がり抵抗も大きくなって燃費
の増大をもたらす。このように、グリップ性と転がり抵
抗は、相反する関係にあるため、両特性を同時に満足さ
せるべく種々のタイヤ用ゴム組成物が提案されている。2. Description of the Related Art In addition to low fuel consumption, various performances required for automobile tires include steering stability, wear resistance, and riding comfort, and various improvements have been made. Of these performances,
In particular, the grip and rolling resistance of tires are all characteristics related to hysteresis loss of rubber. Generally, the larger the hysteresis loss, the higher the grip,
Although the braking performance is improved, the rolling resistance is also increased and the fuel consumption is increased. As described above, since the grip property and the rolling resistance have a contradictory relationship, various rubber compositions for tires have been proposed in order to satisfy both properties at the same time.
【０００３】タイヤ用のゴム組成物において、特にポリ
マーとカーボンブラックが両特性に大きく影響すること
から、例えば、ポリマーとして、スチレン−ブタジエン
共重合体を用いる場合には、結合スチレンの含有率、ブ
タジエン部分の１，２結合含有率を適宜選択して、ころ
がり抵抗とグリップの双方の向上を図っている。一方、
カーボンブラックについては、粒子径を大きくしたり、
配合量を少なくすると、耐カットチッピング性能等が低
下することから、カーボンブラック粒子表面の活性度を
向上させた新タイプのカーボンブラック（例えば、Ｎ３
５１）が開発され、効果を上げている。In the rubber composition for tires, the properties of the polymer and carbon black, in particular, greatly affect both properties. For example, when a styrene-butadiene copolymer is used as the polymer, the content of bound styrene and butadiene are By appropriately selecting the 1,2 bond content of the portion, both rolling resistance and grip are improved. on the other hand,
For carbon black, increase the particle size,
If the blending amount is reduced, the cut chipping resistance and the like are deteriorated. Therefore, a new type of carbon black having improved activity on the surface of the carbon black particles (for example, N3
51) has been developed and is becoming more effective.
【０００４】[0004]
【発明が解決しようとする課題】しかし、近年の地球環
境保護、資源保護の観点から、電気自動車やソーラカー
等の開発に伴い、低燃費タイヤ、具体的には、さらなる
低ころがり抵抗タイヤが求められている。本発明は、ウ
ェットグリップ性を低下させることなく、さらに転がり
抵抗の低減を図るとともに、操縦安定性を満足するトレ
ッドゴム組成物を提供することにある。However, from the viewpoint of global environment protection and resource protection in recent years, with the development of electric vehicles, solar cars, etc., fuel-efficient tires, specifically, further low rolling resistance tires have been demanded. ing. An object of the present invention is to provide a tread rubber composition that further reduces rolling resistance without lowering wet grip properties and satisfies steering stability.
【０００５】[0005]
【課題を解決するための手段】、本発明のトレッドゴム
組成物は、結合スチレンの含有率が５〜４５重量％で、
ブタジエン部分の１，２結合含有率が１０〜８０重量％
であるスチレン−ブタジエン共重合体を５０重量％以上
含有したジエン系ゴム１００重量部あたり、カオリナイ
トを主成分とするクレーを１０〜５０重量部を含有する
ことを特徴とする。The tread rubber composition of the present invention has a bound styrene content of 5 to 45% by weight,
1,2-bond content of butadiene part is 10-80% by weight
It is characterized by containing 10 to 50 parts by weight of clay containing kaolinite as a main component per 100 parts by weight of the diene rubber containing 50% by weight or more of the styrene-butadiene copolymer.
【０００６】また、本発明のトレッドゴム組成物は、ジ
エン系ゴム１００重量部あたり、シランカップリング剤
を１〜６重量部含有していることが好ましい。The tread rubber composition of the present invention preferably contains 1 to 6 parts by weight of a silane coupling agent per 100 parts by weight of the diene rubber.
【０００７】[0007]
【実施例】本発明に用いられるポリマーは、グリップ性
を確保するために、結合スチレンの含有率量が５〜４５
重量％、ブタジエン部分の１，２結合含有率が１０〜８
０重量％であるスチレン−ブタジエン共重合体（以下、
「ＳＢＲ」という）を含有する。ＳＢＲ中の結合スチレ
ンの含有率が５重量％未満ではグリップ性が低下し、結
合スチレン量が４５重量％を越えると、ころがり抵抗が
極端に大きくなり得る。また、ブタジエン部分の１，２
結合含有率が１０重量％未満ではグリップ性が低下し、
８０重量％を越えるところがり抵抗が極端に大きくなり
得る。このような構成を有するＳＢＲは、単独でゴム成
分を構成してもよいし、天然ゴム等の他のジエン系ゴム
と混合して用いてもよい。他のポリマーと混合して用い
る場合には、上記ＳＢＲの含有率が５０重量％以上とな
るように混合する。EXAMPLE The polymer used in the present invention has a bound styrene content of 5 to 45 in order to secure grip.
%, 1,2 bond content of butadiene part is 10-8
0 wt% styrene-butadiene copolymer (hereinafter,
"SBR"). If the content of bound styrene in the SBR is less than 5% by weight, the grip property is deteriorated, and if the amount of bound styrene exceeds 45% by weight, the rolling resistance can be extremely high. In addition, 1,2 of the butadiene part
When the bond content is less than 10% by weight, the grip property is deteriorated,
The rolling resistance exceeding 80% by weight can be extremely high. The SBR having such a constitution may constitute the rubber component alone, or may be used as a mixture with another diene rubber such as natural rubber. When used by mixing with another polymer, it is mixed so that the content of SBR is 50% by weight or more.
【０００８】本発明のゴム組成物において、カオリナイ
トを主成分とするクレーがタイヤ表面と路面との間の水
膜を排除するために用いられる。カオリナイトを主成分
とするクレーのうち、特に６００℃で焼成した非晶質の
メタカオリンのクレーが好ましく用いられる。さらに焼
成後、シランカップリング剤で処理したクレーが効果的
である。In the rubber composition of the present invention, clay containing kaolinite as a main component is used to eliminate a water film between the tire surface and the road surface. Among the clays containing kaolinite as a main component, an amorphous metakaolin clay calcined at 600 ° C. is particularly preferably used. Further, after baking, clay treated with a silane coupling agent is effective.
【０００９】クレーの含有量は、上記ポリマー１００重
量部あたり、１０〜５０重量部、好ましくは２０〜４０
重量部である。クレーの配合量が５０重量部を越える
と、補強性が低下するので好ましくない。一方、クレー
の配合量が１０重量部を未満では、本発明のウェット路
面に対するグリップ力の向上がほとんど認められない。
本発明に用いられるクレーは粒径が大きく、補強効果に
劣るので、カーボンブラック又はシリカ等の補強剤を併
用する。この場合、クレーの配合量がカーボンブラック
等の他の補強剤の含有量との合計である補強剤の総量に
対して１０〜６０重量％となるようにすることが好まし
い。なお、補強剤総量としては、ゴム成分１００重量部
あたり、６０〜１２０重量部とすることが好ましい。The content of clay is 10 to 50 parts by weight, preferably 20 to 40 parts by weight, per 100 parts by weight of the above polymer.
Parts by weight. When the amount of the clay compounded exceeds 50 parts by weight, the reinforcing property is deteriorated, which is not preferable. On the other hand, when the amount of the clay compounded is less than 10 parts by weight, the improvement of the grip force on the wet road surface of the present invention is hardly recognized.
Since the clay used in the present invention has a large particle size and is inferior in the reinforcing effect, a reinforcing agent such as carbon black or silica is used together. In this case, it is preferable that the amount of clay is 10 to 60% by weight based on the total amount of the reinforcing agent, which is the sum of the content of the other reinforcing agent such as carbon black. The total amount of the reinforcing agent is preferably 60 to 120 parts by weight per 100 parts by weight of the rubber component.
【００１０】本発明のトレッドゴム組成物は、さらに、
クレーの添加による破壊特性の低下を防止するために、
シランカップリング剤を添加することが好ましい。シラ
ンカップリング剤としては、Ｘ3 ＳｉＲ（式中、Ｘはア
ルコキシ基又は塩素原子を表し、Ｒはビニル基、グリシ
ド基、メタクリル基、アミノ基、メルカプト基、エポキ
シ基、又はイミド基のいずれか１種を表す）又は（Ｃn
Ｈ2n+1Ｏ)3−Ｓｉ−（ＣＨ2)m −Ｓk −（ＣＨ2)m −Ｓ
ｉ−（Ｃn Ｈ2n+1Ｏ)3 （式中、ｎは１〜４の整数を示
し、ｍ、ｋは各々１〜６の整数を示す。）で表されるシ
ランカップリング剤が好ましく用いられる。シランカッ
プリング剤の配合量としては、ゴム成分１００重量部あ
たり１〜６重量部、好ましくは２〜４重量部となる量が
好ましい。シランカップリング剤の含有量が１重量部未
満では補強効果がほとんど認められず、６重量部を越え
ると成形されたタイヤにおいてシランカップリング剤の
未反応部分がトレッド表面に析出し、逆にグリップ性の
低下を引き起こし得るからである。シランカップリング
剤は、単独で組成物中に添加してもよいし、クレーの処
理剤として添加されてもよい。The tread rubber composition of the present invention further comprises
In order to prevent the deterioration of the fracture characteristics due to the addition of clay,
It is preferable to add a silane coupling agent. As the silane coupling agent, X 3 SiR (wherein, X represents an alkoxy group or a chlorine atom, and R represents a vinyl group, a glycid group, a methacryl group, an amino group, a mercapto group, an epoxy group, or an imide group. Represents one type) or (C n
H 2n + 1 O) 3 -Si- (CH 2) m -S k - (CH 2) m -S
i- (C n H 2n + 1 O) 3 ( wherein, n represents an integer of 1 to 4, m, k denotes each integer from 1 to 6.) is preferably a silane coupling agent represented by Used. The compounding amount of the silane coupling agent is preferably 1 to 6 parts by weight, preferably 2 to 4 parts by weight, per 100 parts by weight of the rubber component. When the content of the silane coupling agent is less than 1 part by weight, almost no reinforcing effect is recognized, and when it exceeds 6 parts by weight, unreacted part of the silane coupling agent is deposited on the tread surface in the molded tire, and conversely grip This can cause a decrease in sex. The silane coupling agent may be added alone to the composition or may be added as a treatment agent for clay.
【００１１】本発明のゴム組成物には、上記化合物の
他、さらに通常のゴム工業で用いられる配合剤である加
硫剤、加硫促進剤、加硫促進助剤、老化防止剤、軟化剤
等を含んでもよい。 〔具体的実施例〕ポリマーとして、日本合成ゴム株式会
社製のＳＢＲであるＳＬ５５２（スチレン含有率２４重
量％、ブタジエンの１，２結合含有率４０重量％）と天
然ゴムとの混合物を用いた。カーボンブラックとして、
昭和キャボット社製のショーブラックＮ２２０を用い
た。カオリナイトを主成分とするクレーとして、白石カ
ルシウム社製の非晶質のメタカオリンであるアイスキャ
ップＫ（以下、「クレーＡ」と略記する）及びアイスキ
ャップＫＥ（以下、「クレーＢ」と略記する）を用い
た。アイスキャップＫＥ（クレーＢ）は、６００℃で焼
成後、シランカップリング剤で処理したもので、アイス
キャップＫＥ３０重量部中、シランカップリング剤が３
重量％（１重量部）含まれている。シランカップリング
剤として、デグッサ社製のＳｉ６９を用いた。これは、
ビス（３−トリエトキシシリルプロピル）テトラスルフ
ェンである。In the rubber composition of the present invention, in addition to the above compounds, compounding agents used in the usual rubber industry are vulcanizing agents, vulcanization accelerators, vulcanization accelerating aids, antioxidants, and softening agents. Etc. may be included. [Specific Examples] As a polymer, a mixture of SL552 made by Japan Synthetic Rubber Co., Ltd., SL552 (styrene content: 24% by weight, butadiene 1,2 bond content: 40% by weight) and natural rubber was used. As carbon black,
Show Black N220 manufactured by Showa Cabot Corporation was used. As clay containing kaolinite as a main component, ice cap K (hereinafter abbreviated as “clay A”) and ice cap KE (hereinafter abbreviated as “clay B”) which are amorphous metakaolin manufactured by Shiraishi Calcium Co., Ltd. ) Was used. Ice cap KE (clay B) is one that has been treated with a silane coupling agent after baking at 600 ° C.
% (1 part by weight). As a silane coupling agent, Si69 manufactured by Degussa was used. this is,
Bis (3-triethoxysilylpropyl) tetrasulfene.
【００１２】その他の添加剤として、表１に示す各種添
加剤を用いた。表１に示す各種添加剤の配合量は、ゴム
成分１００重量部に対する量である。表１に示す老化防
止剤としては、精工化学社製のオゾノン６ｃを用いた。
これは、Ｎ−フェニル−Ｎ’−（１，３ジメチルブチ
ル）−ｐ−フェニレンジアミンである。加硫促進剤とし
ては、大内新興化学社製のノクセラ−ＮＳを用いた。こ
れはＮ−ｔｅｒｔ−ブチル−２−ベンゾチアジルスルフ
ェンアミドである。As other additives, various additives shown in Table 1 were used. The compounding amounts of various additives shown in Table 1 are the amounts based on 100 parts by weight of the rubber component. As the antiaging agent shown in Table 1, Ozonone 6c manufactured by Seiko Chemical Co., Ltd. was used.
This is N-phenyl-N '-(1,3 dimethylbutyl) -p-phenylenediamine. As the vulcanization accelerator, Noxera-NS manufactured by Ouchi Shinko Chemical Co., Ltd. was used. This is N-tert-butyl-2-benzothiazylsulfenamide.
【００１３】[0013]
【表１】 [Table 1]
【００１４】ＳＢＲ、天然ゴム、補強剤（カーボンブラ
ック、クレーＡ、クレーＢの組合せ）、及びシランカッ
プリング剤を表２に示す量だけ配合し、さらに表１に示
す各種配合剤を配合して、表２に示す実施例１〜７及び
比較例１〜４のゴム組成物を調製した。尚、表２に示す
シランカップリング剤の量は、最終的に調製されたゴム
組成物中の含有量を示しており、実施例７のカッコ内数
値は、クレーＢを配合したことによるシランカップリン
グ剤の含有量を示している。SBR, natural rubber, a reinforcing agent (combination of carbon black, clay A and clay B), and a silane coupling agent were blended in the amounts shown in Table 2, and further various blending agents shown in Table 1 were blended. The rubber compositions of Examples 1 to 7 and Comparative Examples 1 to 4 shown in Table 2 were prepared. The amount of the silane coupling agent shown in Table 2 shows the content in the finally prepared rubber composition, and the values in parentheses of Example 7 are the silane cups obtained by adding the clay B. The content of the ring agent is shown.
【００１５】調製したゴム組成物を用いて試料片を作成
し、当該ゴム組成物の破壊特性を下記方法にて評価し
た。また、上記ゴム組成物を用いてタイヤ（リム；６Ｊ
Ｊ×１４、タイヤの内圧；２ｋｇ／ｃｍ2 ）を作成し、
このタイヤについて、ころがり抵抗、操縦安定性、制動
性能を下記方法にて評価した。結果を併せて表２に示
す。A sample piece was prepared using the prepared rubber composition, and the breaking characteristics of the rubber composition were evaluated by the following method. Further, using the above rubber composition, a tire (rim: 6J
J × 14, internal pressure of tire; 2 kg / cm 2 )
The rolling resistance, steering stability, and braking performance of this tire were evaluated by the following methods. The results are also shown in Table 2.
【００１６】[0016]
【表２】 [Table 2]
【００１７】〔評価方法〕 （ａ）ころがり抵抗 荷重３５０ｋｇｆをかけた状態で、速度８０ｋｍ／ｈで
タイヤを回転させて転がり摩擦係数を測定した。クレー
を含有しないゴム組成物（比較例２）で作成したタイヤ
の転がり摩擦係数を１００として、他の実施例及び比較
例の転がり摩擦抵抗を指数で表した。指数が小さいほ
ど、転がり抵抗が小さく良好である。 （ｂ）操縦安定性 上記にて作成したタイヤを、２０００ｃｃの前輪駆動
（ＦＦ）方式の車両に取り付けて、ウェットアスファル
ト路面を走行したときの操縦安定性を１（最悪）〜１０
（最良）の１０段階で官能評価した。６点以上が操縦安
定性として合格である。 （ｃ）制動性能 作成したタイヤを取り付けた車両にて、ウェットアスフ
ァルト路面を６０ｋｍ／ｈで走行し、急制動して車輪を
ロックさせたときから車両が停止するまでの距離を測定
した。比較例２の停止距離を１００として、他の実施例
及び比較例の停止距離を指数で表した。指数が小さい程
良好である。 〔評価〕表２からわかるように、一般に、クレーの含有
量が少ない程一般に転がり抵抗が劣るため、比較例１〜
４のいずれも操縦安定性、転がり抵抗、制動性能のいず
れか一つが劣っていた。尚、比較例４は、転がり抵抗性
及び操縦安定性が良好の結果を示しているが、操縦安定
性のテスト終了後、トレッドゴムの欠けが発生し、耐久
性が不十分なため実用的でない。[Evaluation Method] (a) Rolling Resistance With a load of 350 kgf applied, the tire was rotated at a speed of 80 km / h to measure the rolling friction coefficient. Taking the rolling friction coefficient of a tire made of a rubber composition containing no clay (Comparative Example 2) as 100, the rolling friction resistances of other Examples and Comparative Examples were expressed by indexes. The smaller the index, the smaller the rolling resistance and the better. (B) Steering stability When the tire created above is mounted on a 2000 cc front wheel drive (FF) type vehicle and the vehicle runs on a wet asphalt road surface, the steering stability is 1 (worst) to 10
The sensory evaluation was performed in 10 grades (best). A score of 6 or more is acceptable for driving stability. (C) Braking performance A vehicle with the created tires was run on a wet asphalt road surface at 60 km / h, and the distance from when the wheels were suddenly braked to lock the wheels until the vehicle stopped was measured. Taking the stop distance of Comparative Example 2 as 100, the stop distances of the other Examples and Comparative Examples were expressed by indexes. The smaller the index, the better. [Evaluation] As can be seen from Table 2, in general, the smaller the content of clay, the poorer the rolling resistance.
In each of the four items, one of steering stability, rolling resistance, and braking performance was inferior. Comparative Example 4 shows good rolling resistance and steering stability, but is not practical because the tread rubber is chipped after the steering stability test is completed and durability is insufficient. .
【００１８】これに対し、本発明のゴム組成物を用いて
作成したタイヤは、いずれも転がり抵抗、操縦安定性、
制動性能に優れていた。また、実施例１〜７のゴム組成
物において、シランカップリング剤を１〜６重量部含有
した方が、操縦安定性が向上する傾向にあることがわか
る。On the other hand, all the tires prepared by using the rubber composition of the present invention have rolling resistance, steering stability,
It had excellent braking performance. Further, it is understood that in the rubber compositions of Examples 1 to 7, the silane coupling agent content of 1 to 6 parts by weight tends to improve the steering stability.
【００１９】[0019]
【発明の効果】本発明のトレッドゴム組成物は、転がり
抵抗が小さく、しかも操縦安定性、制動性能に優れてい
る。従って、本発明のトレッドゴム組成物をトレッド部
に用いて作成したタイヤは、低燃費で、しかも操縦安定
性、制動性能に優れている。また、シランカップリング
剤を所定量含有する本発明のトレッドゴム組成物を用い
れば、操縦安定性のさらなる向上を図ることができる。The tread rubber composition of the present invention has a low rolling resistance and is excellent in steering stability and braking performance. Therefore, the tire prepared by using the tread rubber composition of the present invention in the tread portion has low fuel consumption and is excellent in steering stability and braking performance. Further, by using the tread rubber composition of the present invention containing a predetermined amount of the silane coupling agent, it is possible to further improve the steering stability.
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年１２月２２日[Submission date] December 22, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００９[Correction target item name] 0009
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００９】クレーの含有量は、上記ポリマー１００重
量部あたり、１０〜５０重量部、好ましくは２０〜４０
重量部である。クレーの配合量が５０重量部を越える
と、補強性が低下するので好ましくない。一方、クレー
の配合量が１０重量部未満では、本発明のウェット路面
に対するグリップ力の向上がほとんど認められない。本
発明に用いられるクレーは粒径が大きく、補強効果に劣
るので、カーボンブラック又はシリカ等の補強剤を併用
する。この場合、クレーの配合量がカーボンブラック等
の他の補強剤の含有量との合計である補強剤の総量に対
して１０〜６０重量％となるようにすることが好まし
い。なお、補強剤総量としては、ゴム成分１００重量部
あたり、６０〜１２０重量部とすることが好ましい。The content of clay is 10 to 50 parts by weight, preferably 20 to 40 parts by weight, per 100 parts by weight of the above polymer.
Parts by weight. When the amount of the clay compounded exceeds 50 parts by weight, the reinforcing property is deteriorated, which is not preferable. On the other hand, the amount is 10 weight Buhitsuji Mitsurude clays, not be hardly recognized improved grip for the wet road surface of the present invention. Since the clay used in the present invention has a large particle size and is inferior in the reinforcing effect, a reinforcing agent such as carbon black or silica is used together. In this case, it is preferable that the amount of clay is 10 to 60% by weight based on the total amount of the reinforcing agent, which is the sum of the content of the other reinforcing agent such as carbon black. The total amount of the reinforcing agent is preferably 60 to 120 parts by weight per 100 parts by weight of the rubber component.
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１６[Correction target item name] 0016
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１６】[0016]
【表２】 [Table 2]
Claims (2)
で、ブタジエン部分の１，２結合含有率が１０〜８０重
量％であるスチレン−ブタジエン共重合体を５０重量％
以上含有したジエン系ゴム１００重量部あたり、 カオリナイトを主成分とするクレーを１０〜５０重量部
を含有することを特徴とするトレッドゴム組成物。1. The content of bound styrene is 5 to 45% by weight.
And 50% by weight of a styrene-butadiene copolymer having a 1,2-bond content of the butadiene portion of 10 to 80% by weight.
A tread rubber composition comprising 10 to 50 parts by weight of clay containing kaolinite as a main component per 100 parts by weight of the diene rubber contained above.
ンカップリング剤を１〜６重量部含有していることを特
徴とする請求項１に記載のトレッドゴム組成物。2. The tread rubber composition according to claim 1, which contains 1 to 6 parts by weight of a silane coupling agent per 100 parts by weight of the diene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29691293A JP3280783B2 (en) | 1993-11-26 | 1993-11-26 | Tread rubber composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29691293A JP3280783B2 (en) | 1993-11-26 | 1993-11-26 | Tread rubber composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07149954A true JPH07149954A (en) | 1995-06-13 |
| JP3280783B2 JP3280783B2 (en) | 2002-05-13 |
Family
ID=17839781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29691293A Expired - Fee Related JP3280783B2 (en) | 1993-11-26 | 1993-11-26 | Tread rubber composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3280783B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002080638A (en) * | 2000-09-07 | 2002-03-19 | Sumitomo Rubber Ind Ltd | Rubber composition for tire tread |
| KR20030024025A (en) * | 2001-09-15 | 2003-03-26 | 금호산업 주식회사 | Rim flange composition for PCR tire |
| US6852786B2 (en) | 2000-03-24 | 2005-02-08 | Sud-Chemie Ag | Rubber mixture that can be cross-linked by sulfur, method for the production thereof, and cross-linked rubber mixtures and shaped bodies that can be obtained therefrom |
| KR100476010B1 (en) * | 2002-05-29 | 2005-03-10 | 금호타이어 주식회사 | Tread rubber composition for passenger tire |
| US7220794B2 (en) | 2000-07-28 | 2007-05-22 | Sumitomo Rubber Industries, Ltd. | Rubber composition for tire treads and a pneumatic tire having a tread made of such composition |
| US7338999B2 (en) | 2001-05-15 | 2008-03-04 | Sumitomo Rubber Industries, Inc. | Rubber composition for tire tread and pneumatic tire using the same |
| US8183316B2 (en) | 2001-07-18 | 2012-05-22 | Imerys Minerals Limited | Clay mineral products and their use in rubber compositions |
-
1993
- 1993-11-26 JP JP29691293A patent/JP3280783B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6852786B2 (en) | 2000-03-24 | 2005-02-08 | Sud-Chemie Ag | Rubber mixture that can be cross-linked by sulfur, method for the production thereof, and cross-linked rubber mixtures and shaped bodies that can be obtained therefrom |
| US7220794B2 (en) | 2000-07-28 | 2007-05-22 | Sumitomo Rubber Industries, Ltd. | Rubber composition for tire treads and a pneumatic tire having a tread made of such composition |
| JP2002080638A (en) * | 2000-09-07 | 2002-03-19 | Sumitomo Rubber Ind Ltd | Rubber composition for tire tread |
| US7338999B2 (en) | 2001-05-15 | 2008-03-04 | Sumitomo Rubber Industries, Inc. | Rubber composition for tire tread and pneumatic tire using the same |
| US8183316B2 (en) | 2001-07-18 | 2012-05-22 | Imerys Minerals Limited | Clay mineral products and their use in rubber compositions |
| KR20030024025A (en) * | 2001-09-15 | 2003-03-26 | 금호산업 주식회사 | Rim flange composition for PCR tire |
| KR100476010B1 (en) * | 2002-05-29 | 2005-03-10 | 금호타이어 주식회사 | Tread rubber composition for passenger tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3280783B2 (en) | 2002-05-13 |
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