JPH07118455A - Tire tread rubber composition - Google Patents
Tire tread rubber compositionInfo
- Publication number
- JPH07118455A JPH07118455A JP5263718A JP26371893A JPH07118455A JP H07118455 A JPH07118455 A JP H07118455A JP 5263718 A JP5263718 A JP 5263718A JP 26371893 A JP26371893 A JP 26371893A JP H07118455 A JPH07118455 A JP H07118455A
- Authority
- JP
- Japan
- Prior art keywords
- rubber composition
- tread rubber
- experimental example
- agent
- tire
- 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.)
- Granted
Links
Landscapes
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はタイヤトレッドゴム組成
物、特に凍結路面上でのグリップ性を改良したタイヤト
レッドゴム組成物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tire tread rubber composition, and more particularly to a tire tread rubber composition having improved grip performance on a frozen road surface.
【０００２】[0002]
【従来の技術】スパイクタイヤによる粉塵公害を防止す
るためにスパイクタイヤの禁止が法制化され、寒冷地で
はスパイクタイヤに代わってスタッドレスタイヤが使用
されるようになった。スタッドレスタイヤは改良の結
果、スパイクタイヤに近いグリップ性を有するものが開
発され現に使用されている。2. Description of the Related Art Prohibition of spiked tires has been legalized to prevent dust pollution by spiked tires, and studless tires have been used in place of spiked tires in cold regions. As a result of improvements, studless tires have been developed and are now in use that have grip properties close to those of spiked tires.
【０００３】スタッドレスタイヤのグリップ性に影響を
与えるトレッドゴムと路面との摩擦を支配する因子とし
て １．ヒステリシスロス摩擦 ２．粘着摩擦 ３．掘り起こし摩擦 があるが、凍結路面のように非常に摩擦係数の小さい路
面ではヒステリシスロスによる摩擦は非常に小さく、粘
着摩擦、掘り起こし摩擦が大きな割合を示す。As factors that control the friction between the tread rubber and the road surface, which influence the grip of a studless tire, Hysteresis loss friction 2. Adhesive friction 3. There is excavation friction, but on roads with a very small friction coefficient such as frozen roads, friction due to hysteresis loss is very small, and adhesive friction and excavation friction show a large proportion.
【０００４】掘り起こし摩擦力を高めるにはトレッドパ
ターンやトレッドゴムの表面形態が重要である。スパイ
クタイヤは掘り起こし摩擦力が大きいが、スタッドレス
タイヤにおいても掘り起こし摩擦力を高めるために発泡
ゴムの使用や有機繊維の混入によりトレッド表面の凹凸
を増やす工夫がなされ効果があがっている。トレッド表
面の凹凸は、トレッド表面と凍結路面との間に発生する
水膜を排除し、粘着摩擦力を高める効果もある。しかし
ながら、これは、実接触面積を増やすことにより間接的
に粘着摩擦力を高めているのであって、実接触面積を増
やすのには限界があり、粘着摩擦力を高めるのにも限界
がある。The surface morphology of the tread pattern and tread rubber is important for increasing the excavation frictional force. Spike tires have a large digging-up frictional force, but even in studless tires, in order to increase the digging-up frictional force, the use of foamed rubber and the incorporation of organic fibers have been devised to increase the unevenness of the tread surface, which is effective. The unevenness of the tread surface also has the effect of eliminating the water film generated between the tread surface and the frozen road surface and increasing the adhesive friction force. However, since this indirectly increases the adhesive friction force by increasing the actual contact area, there is a limit in increasing the actual contact area, and there is also a limit in increasing the adhesive friction force.
【０００５】粘着摩擦力を高めるためにはゴム質そのも
のが影響を及ぼすので、例えば、ゴム質を柔らかくして
路面との接触面積を増加させることも有効な方法であ
る。このために、充填剤の量を少なくしたり、低温でも
硬化しにくいブタジエンゴムやイソプレンゴムを用いた
り、軟化剤を添加したりすることが行なわれているが操
縦安定性や耐摩耗性の観点から、極端に柔らかくするこ
とはできず不充分な対策であった。Since the rubber substance itself has an influence in order to increase the adhesive frictional force, it is an effective method to increase the contact area with the road surface by softening the rubber substance, for example. For this reason, it has been attempted to reduce the amount of filler, use butadiene rubber or isoprene rubber that is hard to cure even at low temperatures, or add a softener, but from the viewpoint of handling stability and wear resistance. Therefore, it could not be made extremely soft, and it was an insufficient measure.
【０００６】前述のように、現在のスタッドレスタイヤ
はグリップ性の改良が不充分であり、雪上性能面ではス
パイクタイヤと比べて何ら遜色のない性能を発揮するも
のの、凍結路面では路面の条件、気温などの条件によっ
てスパイクタイヤと比べてグリップ性が劣るばあいもあ
り、その改良が要求されている。As described above, the current studless tires have insufficient improvement in gripping property and exhibit a performance comparable to that of spiked tires in terms of snow performance, but on frozen roads, road conditions and temperature In some cases, the grip performance is inferior to that of spiked tires due to such conditions, and improvements are required.
【０００７】[0007]
【発明が解決しようとする課題】本発明は前記問題点に
鑑みなされたものであり、その目的は、凍結路面上にお
いても優れたグリップ性を発揮することのできるスタッ
ドレスタイヤに用いられるトレッド用のゴム組成物を提
供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a tread for a studless tire capable of exhibiting excellent grip even on a frozen road surface. To provide a rubber composition.
【０００８】[0008]
【課題を解決するための手段】本発明者らは前記目的を
達成するために鋭意検討した結果、水酸基を有する液状
のポリイソプレン、ポリブタジエンがゴム成分の３〜４
０％（重量％。以下同様）を占め、シリル化剤を添加し
たゴム組成物が粘着摩擦力の向上に作用し非常に有効で
あることを発見して本発明を完成するに至った。DISCLOSURE OF THE INVENTION As a result of intensive studies for achieving the above object, the present inventors have found that liquid polyisoprene and polybutadiene having a hydroxyl group are 3 to 4 as rubber components.
The present invention was completed by discovering that a rubber composition occupying 0% (weight%, the same applies hereinafter) and having a silylating agent added thereto acts to improve the adhesive frictional force and is very effective.
【０００９】すなわち、本発明は水酸基を有する液状ポ
リイソプレンおよび／または水酸基を有する液状ポリブ
タジエンがゴム成分の３〜４０％を占め、ゴム成分１０
０部（重量部。以下同様）に対してシリル化剤を２〜１
５部配合してなるタイヤトレッドゴム組成物に関する。That is, in the present invention, the liquid polyisoprene having a hydroxyl group and / or the liquid polybutadiene having a hydroxyl group accounts for 3 to 40% of the rubber component, and the rubber component 10
The silylating agent is added in an amount of 2 to 1 with respect to 0 part (part by weight; the same applies hereinafter).
The present invention relates to a tire tread rubber composition containing 5 parts.
【００１０】[0010]
【作用および実施例】本発明においてシリル化剤は、タ
イヤトレッドに粘着摩擦力を付与するのでタイヤのグリ
ップ性の向上につながる。また、親水性である水酸基を
有する液状ゴムが氷との親和性を高めることにより、凍
結路面での粘着摩擦力を高める働きがあると考えられ
る。FUNCTION AND EXAMPLE In the present invention, the silylating agent imparts an adhesive frictional force to the tire tread, which leads to an improvement in grip of the tire. Further, it is considered that the liquid rubber having a hydroxyl group, which is hydrophilic, has the function of increasing the adhesive frictional force on the frozen road surface by increasing the affinity with ice.
【００１１】本発明におけるゴム成分として、凍結路面
の氷上での実接触面積を大きくし粘着摩擦力を高めるた
めに、低温での硬度上昇の少ない天然ゴム、イソプレン
ゴムまたはブタジエンゴムなどが好ましく用いられる。
これらのゴムは単独または任意に組み合わせて用いるこ
とができる。As the rubber component in the present invention, natural rubber, isoprene rubber, butadiene rubber or the like, which has a small increase in hardness at low temperature, is preferably used in order to increase the actual contact area of the frozen road surface on ice and increase the adhesive frictional force. .
These rubbers can be used alone or in any combination.
【００１２】本発明におけるゴム成分には、水酸基を有
する液状のポリイソプレンまたはポリブタジエンが単独
または組み合わせて含まれる。The rubber component in the present invention contains liquid polyisoprene or polybutadiene having a hydroxyl group, alone or in combination.
【００１３】前記液状のポリイソプレンと液状のポリブ
タジエンのいずれも使用可能であるが、粘着摩擦力の向
上の効果は液状のポリイソプレンの方が大きい。Both the liquid polyisoprene and the liquid polybutadiene can be used, but the liquid polyisoprene is more effective in improving the adhesive friction.
【００１４】水酸基を有する液状のポリイソプレンとし
ては、水酸基を１分子あたり２〜１０個有し、数平均分
子量が１００００〜６００００程度のものがタイヤの性
能、加工性の面から好ましく、（株）クラレ製のＬＩＲ
５０６（水酸基を１分子あたり約１０個有し数平均分子
量が２５０００）などがあげられる。As the liquid polyisoprene having a hydroxyl group, one having 2 to 10 hydroxyl groups per molecule and having a number average molecular weight of about 10,000 to 60,000 is preferable from the viewpoint of tire performance and workability. Kuraray LIR
506 (having about 10 hydroxyl groups per molecule and having a number average molecular weight of 25,000) and the like.
【００１５】水酸基を有する液状のポリブタジエンとし
ては両末端に水酸基を有し、数平均分子量が１５００〜
４０００程度のものがタイヤの性能、加工性の面から好
ましく、市販品としては、出光石油化学（株）製のＰｏ
ｌｙ ｂｄ Ｒ−４５ ＨＴ（数平均分子量が２７０
０）、Ｐｏｌｙ ｂｄ Ｒ−１５ ＨＴ（数平均分子量
が２７００）などがあげられる。The liquid polybutadiene having hydroxyl groups has hydroxyl groups at both ends and has a number average molecular weight of 1500 to 1500.
About 4000 is preferable in terms of tire performance and workability, and as a commercial product, Po from Idemitsu Petrochemical Co., Ltd.
ly bd R-45 HT (number average molecular weight 270
0) and Poly bd R-15 HT (having a number average molecular weight of 2700).
【００１６】前記水酸基を有する液状のポリイソプレン
およびポリブタジエンが合計でゴム成分のうち３〜４０
％、好ましくは５〜２５％を占める。３％より少ないと
凍結路面上でのグリップ性の改善が見られず、４０％よ
り多いとゴムの破壊特性が低下し、耐摩耗性、耐カット
性が低下する傾向がある。The above-mentioned liquid polyisoprene and polybutadiene having a hydroxyl group make up a total of 3 to 40 of the rubber components.
%, Preferably 5 to 25%. If it is less than 3%, no improvement in grip on frozen road surface will be observed, and if it is more than 40%, the breaking property of rubber tends to deteriorate, and abrasion resistance and cut resistance tend to deteriorate.
【００１７】本発明のゴム組成物に配合されるシリル化
剤としては、クロロシラン化合物、アルコキシシラン化
合物およびシラザン化合物などがあげられる。Examples of the silylating agent to be added to the rubber composition of the present invention include chlorosilane compounds, alkoxysilane compounds and silazane compounds.
【００１８】クロロシラン化合物としてはフェニルトリ
クロロシラン、ジフェニルジクロロシランなどがあげら
れる。アルコキシシラン化合物としてはフェニルトリエ
トキシシラン、イソブチルトリメトキシシラン、ジフェ
ニルジメトキシシランなどがあげられる。シラザン化合
物としてはヘキサメチルジシラザンなどがあげられる。Examples of the chlorosilane compound include phenyltrichlorosilane and diphenyldichlorosilane. Examples of the alkoxysilane compound include phenyltriethoxysilane, isobutyltrimethoxysilane, diphenyldimethoxysilane and the like. Examples of the silazane compound include hexamethyldisilazane.
【００１９】また、前記以外の、Ｎ，Ｏ−（ビストリメ
チルシリル）アセトアミド、Ｎ，Ｎ−ビス（トリメチル
シリル）ウレア、ｔｅｒｔ−ブチルジメチルクロロシラ
ンなどのシリル化剤を用いることもできる。In addition to the above, silylating agents such as N, O- (bistrimethylsilyl) acetamide, N, N-bis (trimethylsilyl) urea and tert-butyldimethylchlorosilane may be used.
【００２０】前記シリル化剤は単独または任意に組み合
わせて用いることができる。The silylating agents can be used alone or in any combination.
【００２１】前記シリル化剤はゴム成分１００部に対し
て２〜１５部、好ましくは３〜８部配合される。２部よ
り少ないと、粘着摩擦力を高める効果がほとんどえられ
ず、１５部より多いと未反応のシリル化剤が表面に析出
し滑り抵抗を小さくし、逆に氷上での性能が低下する傾
向がある。The silylating agent is blended in an amount of 2 to 15 parts, preferably 3 to 8 parts, based on 100 parts of the rubber component. If it is less than 2 parts, the effect of increasing the adhesive frictional force is hardly obtained, and if it is more than 15 parts, the unreacted silylating agent is deposited on the surface to reduce the slip resistance, and conversely the performance on ice tends to be deteriorated. There is.
【００２２】本発明のゴム組成物は、排水効果やひっか
き効果を高めるために有機繊維を混入したり、ゴム成分
として発泡ゴムを使用することができる。In the rubber composition of the present invention, organic fibers may be mixed in order to enhance the drainage effect and the scratching effect, and foamed rubber may be used as a rubber component.
【００２３】本発明のタイヤトレッドゴム組成物には必
要に応じて、タイヤのゴム配合に通常用いられる配合
剤、たとえば老化防止剤、軟化剤、亜鉛華、ステアリン
酸、加硫促進剤、加硫剤、イオウなどを適宜配合するこ
とができる。In the tire tread rubber composition of the present invention, if necessary, a compounding agent usually used for compounding tire rubbers, such as an antioxidant, a softening agent, zinc white, stearic acid, a vulcanization accelerator, and a vulcanization agent. Agents, sulfur and the like can be appropriately mixed.
【００２４】本発明のタイヤトレッドゴム組成物は、ゴ
ム成分、カーボンブラック、シリル化剤および前記通常
の配合剤を用いて通常の方法により製造することができ
る。ただし、老化防止剤のようなアルカリ性の物質はシ
リル化剤の反応を妨げるので、ベース練り、すなわち加
硫剤を除く成分の混練の際に老化防止剤も添加せず、仕
上げ練りのさいに加硫剤とともに老化防止剤を添加する
ことが好ましい。反応性の低い老化防止剤はベース練り
の際に添加してもよい。ベース練りの際に添加する方が
分散の点からより好ましい。ベース練りは、１３０〜１
７０℃、好ましくは１４０〜１６０℃で行なわれる。１
３０℃より低いとシリル化剤の反応が充分に行なわれな
い傾向があり、１７０℃より高いとゴム分子の劣化が起
こる傾向がある。The tire tread rubber composition of the present invention can be produced by a usual method using a rubber component, carbon black, a silylating agent and the above-mentioned usual compounding agents. However, since an alkaline substance such as an anti-aging agent hinders the reaction of the silylating agent, the anti-aging agent is not added during the base kneading, that is, the kneading of the components excluding the vulcanizing agent. It is preferable to add an antioxidant together with the sulfurizing agent. An anti-aging agent having low reactivity may be added at the time of kneading the base. It is more preferable to add it at the time of kneading the base from the viewpoint of dispersion. Base kneading is 130-1
It is carried out at 70 ° C, preferably 140 to 160 ° C. 1
If it is lower than 30 ° C, the reaction of the silylating agent tends not to be sufficiently carried out, and if it is higher than 170 ° C, deterioration of rubber molecules tends to occur.
【００２５】本発明のタイヤトレッドゴム組成物は、乗
用車用スタッドレスタイヤ、トラック用スタッドレスタ
イヤ、バス用スタッドレスタイヤなどのトレッドに適用
することができる。The tire tread rubber composition of the present invention can be applied to treads such as studless tires for passenger cars, studless tires for trucks and studless tires for buses.
【００２６】つぎに本発明を実施例をあげて説明する
が、本発明はこれらの実施例のみに限定されるものでは
ない。The present invention will be described below with reference to examples, but the present invention is not limited to these examples.
【００２７】実施例１ 実験例１−１ つぎの配合を用いて、加硫剤（イオウ、促進剤類）と老
化防止剤以外を１５０℃±５℃でベース練りし、１００
℃±５℃で加硫剤と老化防止剤を添加して仕上げ練りす
ることによりトレッドゴム組成物を調製した。Example 1 Experimental Example 1-1 A vulcanizing agent (sulfur, accelerators) and an antioxidant other than the vulcanizing agent (sulfur, accelerators) were base-kneaded at 150 ° C. ± 5 ° C. using the following composition, and 100
A tread rubber composition was prepared by adding a vulcanizing agent and an antioxidant and kneading at a temperature of ± 5 ° C.
【００２８】 天然ゴム ６５部 ブタジエンゴム ３０部 液状ポリイソプレン（１） ５部 カーボンブラック（２） ５０部 プロセスオイル（３） ５部 シリル化剤（４） ３部 ステアリン酸 ２部 亜鉛華 ４部 老化防止剤（５） １部 イオウ １．５部 加硫促進剤（６） ０．５部 なお、液状ポリイソプレン（１）としては（株）クラレ
製のクラプレンＬＩＲ５０６、カーボンブラック（２）
としては昭和キャボット（株）製のＮ２２０、プロセス
オイル（３）としては出光興産（株）製のダイアナプロ
セス ＰＳ３２，シリル化剤（４）としては信越化学
（株）製のＫＢＥ−１０３（フェニルトリエトキシシラ
ン）、老化防止剤（５）としては大内新興化学（株）製
のノクラック６Ｃ（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）、加硫促進剤
（６）としては大内新興化学（株）製のノクセラーＮＳ
（Ｎ−ｔｅｒｔ−ブチル−２ベンゾチアジルスルフェン
アミド）を用いた。Natural rubber 65 parts Butadiene rubber 30 parts Liquid polyisoprene (1) 5 parts Carbon black (2) 50 parts Process oil (3) 5 parts Silylating agent (4) 3 parts Stearic acid 2 parts Zinc white 4 parts Aging Inhibitor (5) 1 part Sulfur 1.5 parts Vulcanization accelerator (6) 0.5 parts As liquid polyisoprene (1), Kurapren LIR506 manufactured by Kuraray Co., Ltd., carbon black (2)
Is N220 manufactured by Showa Cabot Co., Ltd., process oil (3) is Diana Process PS32 manufactured by Idemitsu Kosan Co., Ltd., and silylating agent (4) is KBE-103 (Phenyltrix manufactured by Shin-Etsu Chemical Co., Ltd.). (Ethoxysilane), anti-aging agent (5), Nocrac 6C (N-phenyl-N '-(1,3 dimethylbutyl) -P-phenylenediamine) manufactured by Ouchi Shinko Chemical Co., Ltd., vulcanization accelerator ( 6) is Nox cellar NS manufactured by Ouchi Shinko Chemical Co., Ltd.
(N-tert-butyl-2benzothiazylsulfenamide) was used.
【００２９】実験例１−２〜１−１０ 天然ゴム、ブタジエンゴム、液状ポリイソプレン、液状
ポリブタジエン、シリル化剤の配合を表１のように変え
て実験例１−１と同様にゴム組成物を調製した。なお、
液状ポリブタジエンとしては出光石油化学（株）製のＰ
ｏｌｙ ｂｄＲ−４５ ＨＴを用いた。Experimental Examples 1-2 to 1-10 A rubber composition was prepared in the same manner as in Experimental Example 1-1, except that the composition of natural rubber, butadiene rubber, liquid polyisoprene, liquid polybutadiene, and silylating agent was changed as shown in Table 1. Prepared. In addition,
As liquid polybutadiene, P manufactured by Idemitsu Petrochemical Co., Ltd.
poly bdR-45 HT was used.
【００３０】[0030]
【表１】 [Table 1]
【００３１】実施例２ 実験例２−１ 実験例１−１のトレッドゴム組成物を用いて１６５Ｒ１
３のスタッドレスタイヤを作製した。このタイヤの内圧
を２ｋｇｆ／ｃｍ２として国産の１５００ｃｃＦＦ Ａ
ＢＳ（アンチロックブレーキングシステムが採用されて
いる）車に装着し、つぎの条件下に氷盤路での加速タイ
ム、制動停止距離を測定した。Example 2 Experimental Example 2-1 Using the tread rubber composition of Experimental Example 1-1, 165R1
No. 3 studless tire was produced. The internal pressure of this tire is set to 2 kgf / cm 2 and the domestic production is 1500 ccFF A.
It was mounted on a BS (anti-lock braking system) vehicle, and the acceleration time and braking stop distance on an iced road were measured under the following conditions.
【００３２】計測場所：住友ゴム工業（株）の名寄テス
トコース氷盤路 気温 ：−４℃ 氷温 ：−３℃ ［加速タイム］停止状態から加速し、５０ｍ走行するの
に要した時間を測定した。結果は通常のトレッドゴム組
成物を用いた実験例２−８の測定時間を１００として指
数で表２に示した。指数が小さいほど好ましい。Measurement location: Sumitomo Rubber Industries, Ltd. Nayoro test course ice board road Temperature: -4 ° C Ice temperature: -3 ° C [acceleration time] Measure the time required to accelerate from a stopped state and run for 50m did. The results are shown in Table 2 as an index with the measurement time of Experimental Example 2-8 using a normal tread rubber composition being 100. The smaller the index, the more preferable.
【００３３】［制動停止距離］時速３０ｋｍ／ｈで走行
時に停止させるまでに要した距離を測定した。結果は通
常のトレッドゴム組成物を用いた実験例２−８の距離を
１００として指数で表２に示した。指数が小さいほど好
ましい。[Brake stop distance] The distance required to stop at the time of running at 30 km / h was measured. The results are shown in Table 2 as an index, with the distance in Experimental Example 2-8 using a normal tread rubber composition being 100. The smaller the index, the more preferable.
【００３４】実験例２−２ 実験例１−２のトレッドゴム組成物を用いて実験例２−
１と同じタイヤを作製した。これらのタイヤを用いて実
験例２−１と同様に加速タイム、制動停止距離を測定し
た。結果を表２に示す。Experimental Example 2-2 Experimental Example 2-using the tread rubber composition of Experimental Example 1-2
The same tire as 1 was produced. The acceleration time and the braking stop distance were measured using these tires in the same manner as in Experimental Example 2-1. The results are shown in Table 2.
【００３５】実験例２−３ 実験例２−３−１ 実験例１−３のトレッドゴム組成物を用いて実験例２−
１と同じタイヤを作製した。これらのタイヤを用いて実
験例２−１と同様に加速タイム、制動停止距離を測定し
た。結果を表２に示す。Experimental Example 2-3 Experimental Example 2-3-1 Experimental Example 2-using the tread rubber composition of Experimental Example 1-3
The same tire as 1 was produced. The acceleration time and the braking stop distance were measured using these tires in the same manner as in Experimental Example 2-1. The results are shown in Table 2.
【００３６】実験例２−３−２ 実験例１−３のトレッドゴム組成物を、ベース練りを１
２０℃で行なう以外は実験例１−１と同様にして調製
し、実験例２−１と同様にタイヤを作製し、同様の試験
を行なった。結果を表２に示す。Experimental Example 2-3-2 The tread rubber composition of Experimental Example 1-3 was mixed with 1 base kneading.
A tire was prepared in the same manner as in Experimental Example 1-1 except that the test was conducted at 20 ° C., and a tire was prepared in the same manner as in Experimental Example 2-1 and the same test was conducted. The results are shown in Table 2.
【００３７】実験例２−３−３ 実験例１−３のトレッドゴム組成物を、老化防止剤、亜
鉛華の添加をベース練り時に行なった以外は実験例１−
１と同様にして調製し、実験例２−１と同様にタイヤを
作製し、同様に加速タイム、制動停止距離を測定した。
結果を表２に示す。Experimental Example 2-3-3 Experimental Example 1--3 except that the antioxidant and zinc white were added to the tread rubber composition of Experimental Example 1-3 during base kneading.
A tire was prepared in the same manner as in Experimental Example 2-1, and the acceleration time and the braking stop distance were measured in the same manner.
The results are shown in Table 2.
【００３８】実験例２−４〜２−１０ 実験例１−４、１−５、１−６、１−７、１−８、１−
９、１−１０のトレッドゴム組成物を用いて実験例２−
１と同じタイヤを作製した。これらのタイヤを用いて実
験例２−１と同様に加速タイム、制動停止距離を測定し
た。結果を表２に示す。Experimental Examples 2-4 to 2-10 Experimental Examples 1-4, 1-5, 1-6, 1-7, 1-8, 1-
Experimental Example 2-using the tread rubber composition of 9, 1-10
The same tire as 1 was produced. The acceleration time and the braking stop distance were measured using these tires in the same manner as in Experimental Example 2-1. The results are shown in Table 2.
【００３９】[0039]
【表２】 [Table 2]
【００４０】実施例２において、本発明のトレッドゴム
組成物（実験例番号１−１、１−２、１−３、１−４、
１−５、１−６、１−７）を用いた実験例２−１、２−
２、２−３−１、２−３−２、２−３−３、２−４、２
−５、２−６、２−７においては優れた結果がえられ
た。実験例２−８はトレッドゴム組成物が液状ポリイソ
プレンまたは液状ポリブタジエンおよびシリル化剤を含
まないので優れた結果がえられなかった。実験例２−９
はシリル化剤を含まないので加速タイムが長くなった。
実験例２−１０はシリル化剤の配合量が多すぎるトレッ
ドゴム組成物を用いたので加速タイムおよび制動停止距
離が長くなった。In Example 2, the tread rubber composition of the present invention (Experimental example numbers 1-1, 1-2, 1-3, 1-4,
Experimental Examples 2-1 and 2-using 1-5, 1-6, 1-7)
2, 2-3-1, 2-3-2, 2-3-3, 2-4, 2
Excellent results were obtained at -5, 2-6, and 2-7. In Experimental Examples 2-8, excellent results were not obtained because the tread rubber composition did not contain liquid polyisoprene or liquid polybutadiene and a silylating agent. Experimental Example 2-9
Has a longer accelerating time because it contains no silylating agent.
In Experimental Example 2-10, since the tread rubber composition containing too much silylating agent was used, the acceleration time and the braking stop distance were long.
【００４１】[0041]
【発明の効果】本発明のタイヤトレッドゴム組成物を用
いれば、凍結路面上におけるグリップ性に優れ加速性
能、制動性能などが良好なスタッドレスタイヤをうるこ
とができる。By using the tire tread rubber composition of the present invention, it is possible to obtain a studless tire having excellent grip performance on a frozen road surface and having good acceleration performance, braking performance and the like.
Claims (3)
び／または水酸基を有する液状ポリブタジエンがゴム成
分の３〜４０重量％を占め、ゴム成分１００重量部に対
してシリル化剤を２〜１５重量部配合してなるタイヤト
レッドゴム組成物。1. A liquid polyisoprene having a hydroxyl group and / or a liquid polybutadiene having a hydroxyl group occupies 3 to 40% by weight of a rubber component, and 2 to 15 parts by weight of a silylating agent is added to 100 parts by weight of the rubber component. A tire tread rubber composition comprising:
ルコキシシラン化合物およびシラザン化合物よりなる群
から選ばれた少なくとも１種である請求項１記載のタイ
ヤトレッドゴム組成物。2. The tire tread rubber composition according to claim 1, wherein the silylating agent is at least one selected from the group consisting of a chlorosilane compound, an alkoxysilane compound and a silazane compound.
〜１７０℃でベース練りし、そののち、加硫剤、老化防
止剤を添加して仕上げ練りをしてえられた請求項１また
は２記載のタイヤトレッドゴム組成物。3. A component other than a vulcanizing agent and an antioxidant is added to 130
The tire tread rubber composition according to claim 1 or 2, obtained by kneading the base at a temperature of up to 170 ° C, then adding a vulcanizing agent and an antioxidant to finish kneading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5263718A JP2675256B2 (en) | 1993-10-21 | 1993-10-21 | Tire tread rubber composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5263718A JP2675256B2 (en) | 1993-10-21 | 1993-10-21 | Tire tread rubber composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07118455A true JPH07118455A (en) | 1995-05-09 |
| JP2675256B2 JP2675256B2 (en) | 1997-11-12 |
Family
ID=17393351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5263718A Expired - Fee Related JP2675256B2 (en) | 1993-10-21 | 1993-10-21 | Tire tread rubber composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2675256B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005281390A (en) * | 2004-03-29 | 2005-10-13 | Kazufumi Ogawa | Tire, its manufacturing method and automobile using it |
| KR100656557B1 (en) * | 2005-10-31 | 2006-12-13 | 금호타이어 주식회사 | Tire tread composition filed silica |
| EP2014709A1 (en) | 2007-07-13 | 2009-01-14 | Sumitomo Rubber Industries, Ltd. | Rubber composition and studless tire obtained by using the rubber composition |
| JP2012072413A (en) * | 2011-11-11 | 2012-04-12 | The Eco Kk | Organic polymer composition |
-
1993
- 1993-10-21 JP JP5263718A patent/JP2675256B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005281390A (en) * | 2004-03-29 | 2005-10-13 | Kazufumi Ogawa | Tire, its manufacturing method and automobile using it |
| KR100656557B1 (en) * | 2005-10-31 | 2006-12-13 | 금호타이어 주식회사 | Tire tread composition filed silica |
| EP2014709A1 (en) | 2007-07-13 | 2009-01-14 | Sumitomo Rubber Industries, Ltd. | Rubber composition and studless tire obtained by using the rubber composition |
| US7919560B2 (en) | 2007-07-13 | 2011-04-05 | Sumitomo Rubber Industries, Ltd. | Rubber composition and studless tire obtained by using the rubber composition |
| JP2012072413A (en) * | 2011-11-11 | 2012-04-12 | The Eco Kk | Organic polymer composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2675256B2 (en) | 1997-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2145355C (en) | Pneumatic tire having formed rubber | |
| RU2338761C2 (en) | Rubber compound and pneumatic tire with used in tread mentioned compound | |
| JP2675255B2 (en) | Tire tread rubber composition | |
| JP2999128B2 (en) | Pneumatic tire | |
| JP2002211203A (en) | Studless tire | |
| JP5508038B2 (en) | Studless tires for trucks / buses or light trucks | |
| JP3507218B2 (en) | Rubber composition for tire tread | |
| JPH02308832A (en) | Rubber composition for tire tread | |
| JP2710263B2 (en) | Tire tread rubber composition | |
| JPH06240052A (en) | Tread rubber composition | |
| JP3745105B2 (en) | Pneumatic tire | |
| JP2675256B2 (en) | Tire tread rubber composition | |
| JP3410938B2 (en) | Rubber composition for tire tread | |
| JP2000026656A (en) | Tread rubber composition and studless tire | |
| JP3328029B2 (en) | Tire tread rubber composition | |
| JP2010059252A (en) | Studless tire for truck-bus or for light truck | |
| JP2004161139A (en) | Pneumatic tire | |
| JP3600675B2 (en) | Tread rubber composition for studless tires | |
| JP3483673B2 (en) | Tread rubber composition for studless tires | |
| JPH07149954A (en) | Tread rubber composition | |
| JP2000007832A (en) | Pneumatic tire | |
| JP2003292676A (en) | Rubber composition for tire and pneumatic tire | |
| JPH11139359A (en) | Rubber crawler | |
| JP2000063569A (en) | Rubber composition for studless tire | |
| JP2002212339A (en) | Rubber composition for tire tread and tire using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |