JP2007186644A - Rubber composition for tire tread - Google Patents
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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
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Abstract
Description
本発明はタイヤ用ゴム組成物に関し、更に詳しくは加工中のスコーチ性を悪化させることなく、加硫速度を改善したタイヤトレッド用ゴム組成物に関する。 The present invention relates to a rubber composition for a tire, and more particularly to a rubber composition for a tire tread having an improved vulcanization rate without deteriorating the scorch property during processing.
タイヤトレッド用コンパウンドにおいては、転がり抵抗との減少、ウェット制動の改善を目的にスチレンブタジエン系ゴムにシリカ、シランカップリング剤及びジフェニルグアニジン系の配合が開発されている。しかしながら、シリカ配合ゴム組成物は加硫生産性が遅れるために、２次加硫促進剤として、ジフェニルグアニジンを配合し、加硫生産性を改善している（例えば特許文献１参照）。しかしながら、ジフェニルグアニジンの配合により加硫速度は改善されるものの、加工中のスコーチ性を悪化させるという問題がある。 In tire tread compounds, a styrene butadiene rubber compounded with silica, a silane coupling agent and a diphenylguanidine compound has been developed for the purpose of reducing rolling resistance and improving wet braking. However, since the vulcanization productivity is delayed in the silica-blended rubber composition, diphenylguanidine is blended as a secondary vulcanization accelerator to improve the vulcanization productivity (see, for example, Patent Document 1). However, although the vulcanization rate is improved by blending diphenylguanidine, there is a problem that the scorch property during processing is deteriorated.
従って、本発明の目的は、タイヤトレッド用コンパウンドにシリカを配合して、転がり抵抗の低減、ウェット制動性の改善を図ると共に、スコーチ性を悪化させることなく、加硫速度を改良したゴム組成物を提供することにある。 Accordingly, an object of the present invention is to compound a tire tread compound with silica to reduce rolling resistance and improve wet braking performance, and improve the vulcanization speed without deteriorating scorch performance. Is to provide.
本発明に従えば、スチレンブタジエン共重合体ゴム又はスチレンブタジエン共重合体ゴムと他のジエン系ゴムとのブレンド物１００重量部に対し、シリカ２０〜１２０重量部、シリカに対し４〜１２重量％のシランカップリング剤、加硫促進剤０．５〜２．５重量部、硫黄０．５重量部〜２．５重量部、２次加硫促進剤としてのジフェニルグアニジン０．１〜２．０重量部を配合した配合系において、酸化亜鉛２．０重量部超〜７．０重量部並びに更なる２次加硫促進剤としてのジンクジベンジルジチオカルバメート及び／又は１，６−ビス（Ｎ，Ｎ’−ジベンジルチオカルバモイルジチオ）ヘキサン０．０５〜０．７重量部を更に配合したタイヤトレッド用ゴム組成物が提供される。 According to the present invention, 20 to 120 parts by weight of silica and 4 to 12% by weight with respect to 100 parts by weight of styrene butadiene copolymer rubber or a blend of styrene butadiene copolymer rubber and another diene rubber. Silane coupling agent, vulcanization accelerator 0.5 to 2.5 parts by weight, sulfur 0.5 part by weight to 2.5 parts by weight, diphenylguanidine 0.1 to 2.0 as secondary vulcanization accelerator In the compounding system in which parts by weight are blended, zinc oxide exceeds 2.0 parts by weight to 7.0 parts by weight and zinc dibenzyldithiocarbamate and / or 1,6-bis (N, There is provided a rubber composition for a tire tread, which further contains 0.05 to 0.7 parts by weight of N′-dibenzylthiocarbamoyldithio) hexane.
本発明に従えば、更に前記ゴム組成物をキャップコンパウンドとしてトレッドに用いた空気入りタイヤが提供される。 According to the present invention, there is further provided a pneumatic tire using the rubber composition as a cap compound in a tread.
本発明によれば、タイヤトレッド用コンパウンドの転がり抵抗の低減及びウェット制動の改善を目的としたスチレンブタジエン共重合体ゴム、シリカ、シランカップリング剤、硫黄、加硫促進剤及び２次加硫促進剤としてのジフェニルグアニジンを含むゴム組成物に、特定量の酸化亜鉛及び更なる２次加硫促進剤としてのジンクジベンジルジチオカルバメート及び／又は１，６−ビス（Ｎ，Ｎ’−ジベンジルチオカルバモイルジチオ）ヘキサンを配合することにより、スコーチ性を悪化させることなく加硫速度を改善することができる。 According to the present invention, styrene butadiene copolymer rubber, silica, silane coupling agent, sulfur, vulcanization accelerator and secondary vulcanization accelerator for the purpose of reducing rolling resistance of tire tread compounds and improving wet braking. A rubber composition containing diphenylguanidine as an agent is added to a specific amount of zinc oxide and zinc dibenzyldithiocarbamate and / or 1,6-bis (N, N′-dibenzylthio) as a further secondary vulcanization accelerator. By blending carbamoyldithio) hexane, the vulcanization rate can be improved without deteriorating the scorch property.
本発明者らは前記課題を解決すべく研究を進めた結果、シリカ系では加硫生産性が遅れるために、２次加硫促進剤として、ジフェニルグアニジンを配合し、加硫生産性を改善しているが、ジフェニルグアニジンは加硫速度を改善する一方で、加工中のスコーチ性を悪化させるという問題がある。そこで、本発明者は、特定量の酸化亜鉛及び更なる２次加硫促進剤としてのジンクジベンジルジチオカルバメート及び／又は１，６−ビス（Ｎ，Ｎ’−ジベンジルチオカルバモイルジチオ）ヘキサンを配合することにより、スコーチ性を悪化させることなく、加硫速度を改善することに成功した。 As a result of researches to solve the above problems, the inventors of the present invention have improved vulcanization productivity by blending diphenylguanidine as a secondary vulcanization accelerator because vulcanization productivity is delayed in silica. However, while diphenylguanidine improves the vulcanization rate, it has a problem of worsening the scorch property during processing. Therefore, the present inventor added a specific amount of zinc oxide and zinc dibenzyldithiocarbamate and / or 1,6-bis (N, N′-dibenzylthiocarbamoyldithio) hexane as a further secondary vulcanization accelerator. By blending, it succeeded in improving the vulcanization speed without deteriorating the scorch property.
本発明のゴム組成物は、スチレンブタジエン共重合体ゴム（ＳＢＲ）（なお、ＳＢＲはスチレン含量、ビニル結合量等の異なる各種ＳＢＲを単独又は任意の混合物で用いることができる。）又はスチレンブタジエンラバー共重合体ゴム（ＳＢＲ）と他のジエン系ゴムとのブレンド物１００重量部に対し、シリカを２０〜１２０重量部、好ましくは３０〜９０重量部、シランカップリング剤をシリカに対し４〜１２重量％、好ましくは６〜１０重量％、加硫促進剤を０．５〜２．５重量部、好ましくは１．０〜２．２重量部、硫黄を０．５〜２．５重量部、好ましくは１．０〜２．２重量部、２次加硫促進剤としてジフェニルグアニジンを０．１〜２．０重量部、好ましくは０．２〜２．０重量部、酸化亜鉛を２．０〜７．０重量部、好ましくは２．０〜４．０重量部、その他活性剤、老化防止剤、オイルなどの汎用の添加剤を配合した配合系において、これに更に２次加硫促進剤として、ジンクジベンジルジチオカルバメート及び／又は１，６−ビス（Ｎ，Ｎ’−ジベンジルチオカルバモイルジチオ）へキサンを０．０５〜０．７重量部、好ましくは０．１〜０．６重量部、配合する。上記ジエン系ゴムとしては、例えば各種ポリブタジエンゴム（ＢＲ）、天然ゴム（ＮＲ）、ポリイソプレンゴム（ＩＲ）、エポキシ化天然ゴム、ポリスチレンイソプレンブタジエン共重合体ゴム（ＳＩＢＲ）などを単独又は任意の混合物で用いることができる。ＳＢＲ／ジエン系ゴムの比率には特に限定はないが、１００／０〜４０／６０（重量比）であるのが好ましい。 The rubber composition of the present invention is a styrene butadiene copolymer rubber (SBR) (in addition, SBR can use various SBRs having different styrene contents, vinyl bond amounts, etc. alone or in any mixture) or styrene butadiene rubber. Silica is 20 to 120 parts by weight, preferably 30 to 90 parts by weight, and the silane coupling agent is 4 to 12 parts by weight with respect to 100 parts by weight of the blend of copolymer rubber (SBR) and another diene rubber. % By weight, preferably 6 to 10% by weight, vulcanization accelerator 0.5 to 2.5 parts by weight, preferably 1.0 to 2.2 parts by weight, sulfur 0.5 to 2.5 parts by weight, Preferably, 1.0 to 2.2 parts by weight of diphenylguanidine as a secondary vulcanization accelerator is 0.1 to 2.0 parts by weight, preferably 0.2 to 2.0 parts by weight, and zinc oxide is 2.0. -7.0 parts by weight, preferably In a compounding system in which general additives such as 2.0 to 4.0 parts by weight, other active agents, anti-aging agents and oils are blended, zinc dibenzyldithiocarbamate and / or as a secondary vulcanization accelerator Alternatively, 0.05 to 0.7 parts by weight, preferably 0.1 to 0.6 parts by weight of 1,6-bis (N, N′-dibenzylthiocarbamoyldithio) hexane is blended. Examples of the diene rubber include various polybutadiene rubbers (BR), natural rubber (NR), polyisoprene rubber (IR), epoxidized natural rubber, polystyrene isoprene butadiene copolymer rubber (SIBR), etc., alone or in any mixture. Can be used. The ratio of SBR / diene rubber is not particularly limited, but is preferably 100/0 to 40/60 (weight ratio).
本発明のゴム組成物において、酸化亜鉛（亜鉛華）の配合量が少ないと、スコーチ時間の短縮が抑えられず、ＭＬ５ｕｐ／ＢＰＴの改善効果が少ないので好ましくなく、逆に多いとスコーチの抑制やＢＰＴの短縮の効果のそれ以上改善効果が見られない。 In the rubber composition of the present invention, if the amount of zinc oxide (zinc white) is small, the shortening of the scorch time cannot be suppressed, and the effect of improving ML5up / BPT is small. No further improvement of the effect of shortening the BPT is seen.
本発明のゴム組成物において、更なる２次加硫促進剤としてジンクジベンジルジチオカルバメート及び／又は１，６−ビス（Ｎ，Ｎ’−ジベンジルチオカルバモイルジチオ）ヘキサンを配合するが、これらの配合量が少ないと、ＭＬ５ｕｐ／ＢＰＴ比率の改善効果が見られず、逆に多いと、スコーチが半分以下となってしまい、加工性の調整が困難となるので好ましくない。本発明のゴム組成物はＭＬ５ｕｐ／ＢＰＴの比率が６．５より大きいのが加工性と加硫生産性の観点から好ましく、７．０以上であるのが更に好ましい。 In the rubber composition of the present invention, zinc dibenzyldithiocarbamate and / or 1,6-bis (N, N′-dibenzylthiocarbamoyldithio) hexane is added as a further secondary vulcanization accelerator. When the blending amount is small, the effect of improving the ML5up / BPT ratio is not seen. On the other hand, when the blending amount is large, the scorch becomes half or less, and it becomes difficult to adjust the workability. In the rubber composition of the present invention, the ML5up / BPT ratio is preferably larger than 6.5 from the viewpoint of processability and vulcanization productivity, and more preferably 7.0 or more.
タイヤの加硫は通常温度１４０〜１９０℃で行なわれる。一方、スコーチは１４０℃以下の温度での加工中に生じる問題である。然るに、本発明者らは温度により大きく反応速度の変化する配合を検討することで、加硫速度をあげつつ、スコーチを防止できることを見出した。加硫は加硫缶からの排出時に、加硫物の内部の発泡がないことが肝要であり、これは、実験室において評価する際には、タイヤと同様の寸法のサンプルで加硫条件を変え、泡の発生有無を調べ、泡の消える加硫条件を決定することによって行なうことができる。この泡の発生はコンパウンドの架橋密度、排出時温度におけるゴム弾性率、内蔵あるいは内部発生気体圧力等のバランスにより決まる値で、レオメーターにおけるｔ１０，ｔ３０などで定めることはできない現象である。 The vulcanization of the tire is usually performed at a temperature of 140 to 190 ° C. On the other hand, scorch is a problem that occurs during processing at a temperature of 140 ° C. or lower. However, the present inventors have found that the scorch can be prevented while increasing the vulcanization rate by examining a blend whose reaction rate greatly changes depending on the temperature. It is important that vulcanization has no foam inside the vulcanizate when discharged from the vulcanization can. This can be done by examining the presence or absence of bubbles and determining the vulcanization conditions where the bubbles disappear. The generation of bubbles is a value determined by the balance of the crosslinking density of the compound, the rubber elastic modulus at the temperature at the time of discharge, the internal or internally generated gas pressure, and is a phenomenon that cannot be determined by t10, t30, etc. in the rheometer.
本発明では、この泡の発生のなくなるまでに必要な反応量を、反応の活性化エネルギーを基に、ある温度における時間に換算して（これをブローポイント（ＢＰＴ）とよぶ）、加硫速度の尺度として用いる。１７０℃に換算した場合の反応時間をＢＰＴとして用いた場合、１２５℃におけるＭＬ５ｕｐの値との比、ＭＬ５ｕｐ／ＢＰＴ比率が配合の温度特性を示し、現在のシリカ、シランカップリング剤、ジフェニルグアニジン系配合ではこの比率がほぼ一定で約６．０である。本発明者らは、ゴム組成物の加工性と加硫生産性を両立させるには、このＭＬ５ｕｐ／ＢＰＴ比率を６．５以上好ましくは７．０以上にする事が必要であることを確認した。加硫速度を上げるためには、２次加硫促進剤を併用するのが一般的であるが、通常の配合で使用するジフェニルグアニジン系の配合だけでは、この比率を変えることはできない。本発明者らは、適切な温度依存性を持つ２次加硫促進剤の使用により、この比率を改善できることを見出した。種々の２次加硫促進剤について前記効果を確認したところ、同種の２次加硫促進剤でも効果が大きく異なることを見出した。同じジチオカルバメート系においてもジンクジベンジルジチオカルバメートと例えばジンクエチルフェニルジチオカルバメートは側鎖の大きさにより効果が異なり、ジンクエチルフェニルジチオカルバメートでは期待する効果を得ることはできない。同様、１，６−ビス（Ｎ，Ｎ’−ジベンジルチオカルバモイルジチオ）へキサンと同様の構造のシスタミンジベンジルジチオカルバメートも比率改善効果を発揮しない。更にこれらの反応速度の最適化には特定量の酸化亜鉛の配合が必要である事を見出した。酸化亜鉛量が一定より少ない場合には、ＭＬ５ｕｐ／ＢＰＴの比率の改善効果が減少し、逆に一定量以上加えると平衡に達して改善効果が飽和される。 In the present invention, the reaction amount required until the generation of bubbles is converted into time at a certain temperature based on the activation energy of the reaction (this is called a blow point (BPT)), and the vulcanization rate is obtained. Use as a measure of When the reaction time when converted to 170 ° C is used as BPT, the ratio of ML5up at 125 ° C and the ML5up / BPT ratio indicate the temperature characteristics of the blend, and present silica, silane coupling agent, diphenylguanidine series In the formulation, this ratio is almost constant and about 6.0. The inventors of the present invention have confirmed that the ML5up / BPT ratio needs to be 6.5 or more, preferably 7.0 or more in order to achieve both processability and vulcanization productivity of the rubber composition. . In order to increase the vulcanization speed, it is common to use a secondary vulcanization accelerator in combination, but this ratio cannot be changed only by diphenylguanidine-based blending used in ordinary blending. The present inventors have found that this ratio can be improved by the use of a secondary vulcanization accelerator having an appropriate temperature dependence. When the above effects were confirmed for various secondary vulcanization accelerators, it was found that the effects were greatly different even with the same type of secondary vulcanization accelerators. Even in the same dithiocarbamate system, zinc dibenzyldithiocarbamate and, for example, zinc ethylphenyl dithiocarbamate have different effects depending on the size of the side chain, and zinc ethylphenyl dithiocarbamate cannot achieve the expected effect. Similarly, cystamine dibenzyldithiocarbamate having a structure similar to that of 1,6-bis (N, N'-dibenzylthiocarbamoyldithio) hexane does not exhibit a ratio improving effect. Furthermore, it has been found that a specific amount of zinc oxide is required to optimize the reaction rate. When the amount of zinc oxide is less than a certain level, the effect of improving the ratio of ML5up / BPT is reduced. Conversely, when a certain amount or more is added, equilibrium is reached and the improving effect is saturated.
本発明に係るゴム組成物には、前記した成分に加えて、カーボンブラックなどのその他の補強剤（フィラー）、加硫又は架橋剤、加硫又は架橋促進剤、各種オイル、老化防止剤、可塑剤などのタイヤ用、その他のゴム組成物用に一般的に配合されている各種添加剤を配合することができ、かかる添加剤は一般的な方法で混練して組成物とし、加硫又は架橋するのに使用することができる。これらの添加剤の配合量は本発明の目的に反しない限り、従来の一般的な配合量とすることができる。 In addition to the components described above, the rubber composition according to the present invention includes other reinforcing agents (fillers) such as carbon black, vulcanization or crosslinking agents, vulcanization or crosslinking accelerators, various oils, anti-aging agents, plastics Various additives that are generally blended for tires such as additives and other rubber compositions can be blended, and these additives are kneaded into a composition by a general method to be vulcanized or crosslinked. Can be used to do. As long as the amount of these additives is not contrary to the object of the present invention, a conventional general amount can be used.
以下、実施例によって本発明を更に説明するが、本発明の範囲をこれらの実施例に限定するものでないことはいうまでもない。 EXAMPLES Hereinafter, although an Example demonstrates this invention further, it cannot be overemphasized that the scope of the present invention is not limited to these Examples.
実施例１〜５及び比較例１〜５
サンプルの調製
表Ｉに示す配合において、加硫促進剤と硫黄を除く成分を１６リットルの密閉型ミキサーで６分間混練し、１５０℃に達したときに放出してマスターバッチを得た。このマスターバッチに加硫促進剤と硫黄をオープンロールで混練し、ゴム組成物を得た。このゴム組成物を用いて以下に示す試験法で未加硫物性を評価した。結果は表Ｉに示す。
Examples 1-5 and Comparative Examples 1-5
Sample preparation In the formulation shown in Table I, the components other than the vulcanization accelerator and sulfur were kneaded for 6 minutes with a 16 liter closed mixer, and when the temperature reached 150 ° C, a master batch was obtained. A vulcanization accelerator and sulfur were kneaded with this masterbatch with an open roll to obtain a rubber composition. Using this rubber composition, unvulcanized physical properties were evaluated by the following test methods. The results are shown in Table I.
ゴム物性評価試験法
ＭＬ５ｕｐ：ＪＩＳ Ｋ−６３００−１に従い、測定を行なう。１２５℃における最小トルクから５ポイント上昇する迄の時間をＭＬ５ｕｐとする。
Rubber physical property evaluation test method ML5up: Measured according to JIS K-6300-1. The time from the minimum torque at 125 ° C. up to 5 points is defined as ML5up.
ブローポイント（ＢＰＴ）：（株）東洋精機製作所製のハイスピードブローポイントテスターを用い、試験用モールドとして東洋精機ハイスピードブローポイントテスター用６／１０mmモールドを使用して、熱板温度（上下とも）１８０℃に設定し、サンプルメーキングロールにてシーティングを行い、サンプルの重量が予め測定したモールド内ゴム重量に対し、＋１０％〜＋２０％の重量になるように調整する。次に東洋精機ブローポイントテスター測定方法に従い、各サンプルのパラメーターを入力し、それにより定められた加硫終了後、冷却し切断面の発泡開始位置を測定し、その位置における熱履歴量から加硫時間ＢＰＴを決定する。上記パラメーターとして、コンパウンドの活性化エネルギーと適正な試験加硫時間ＳＥＴＣを決定する。具体的には１７０℃，１８０℃，１９０℃の３点にてレオメーターの測定を行い、そのｔ１０の値から、活性化エネルギーと試験加硫時間ＳＥＴＣを決定する。 Blow Point (BPT): Using a high speed blow point tester manufactured by Toyo Seiki Seisakusho Co., Ltd., using a 6/10 mm mold for Toyo Seiki high speed blow point tester as a test mold, hot plate temperature (both up and down) The temperature is set to 180 ° C., and sheeting is performed with a sample making roll, and the weight of the sample is adjusted to + 10% to + 20% with respect to the weight of rubber in the mold measured in advance. Next, according to the Toyo Seiki blow point tester measurement method, input the parameters of each sample, and after completion of the vulcanization determined by it, cool and measure the foaming start position of the cut surface, vulcanize from the amount of heat history at that position The time BPT is determined. As the above parameters, the activation energy of the compound and the appropriate test vulcanization time SETC are determined. Specifically, the rheometer is measured at three points of 170 ° C., 180 ° C., and 190 ° C., and the activation energy and the test vulcanization time SETC are determined from the value of t10.
表Ｉ脚注
＊１：日本ゼオン（株）製Ｎｉｐｏｌ １７２１
＊２：日本ゼオン（株）製Ｎｉｐｏｌ １２２０
＊３：ローディア（株）製ＺＥＯＳＩＬ １６５ＧＲ
＊４：東海カーボン（株）製シースト７Ｈ−Ｍ
＊５：デグッサ（株）製Ｓｉ６９
＊６：正同化学工業（株）製酸化亜鉛３種
＊７：鶴見化学工業（株）製粉末硫黄
＊８：大内新興化学工業（株）製ノクセラーＣＺ−Ｐ
＊９：大内新興化学工業（株）製ノクセラーＤ
Table I footnote * 1: Nipol 1721 manufactured by Nippon Zeon Co., Ltd.
* 2: Nipol 1220 manufactured by Nippon Zeon Co., Ltd.
* 3: ZEOSIL 165GR manufactured by Rhodia Co., Ltd.
* 4: Toast Carbon Co., Ltd. Seest 7H-M
* 5: Degussa Si69
* 6: Three types of zinc oxide manufactured by Shodo Chemical Industry Co., Ltd. * 7: Powdered sulfur manufactured by Tsurumi Chemical Industry Co., Ltd. * 8: Noxeller CZ-P manufactured by Ouchi Shinsei Chemical Industry Co., Ltd.
* 9: Noxeller D manufactured by Ouchi Shinsei Chemical Industry Co., Ltd.
＊１０：Ｆｌｅｘｓｙｓ製ＺＢＥＣ * 10: ZBEC made by Flexsys
＊１１：Ｌａｎｘｅｓｓ製ＫＡ９１８８ * 11: Lanxess KA9188
＊１２：川口化学工業（株）製アクセルＰＸ * 12: Accelerator PX manufactured by Kawaguchi Chemical Industry Co., Ltd.
＊１３：Ｒｏｂｉｎｓｏｎ Ｂｒｏｔｈｅｒｓ製ＳＡＡ３０ ５０％ＰＭ ＰＥＬＬＥＴＳ * 13: SAA30 50% PM PELLETS by Robinson Brothers
本発明によれば、スチレンブタジエン共重合体ゴム、シリカ、シランカップリング剤、硫黄、加硫促進剤及び２次加硫促進剤としてのジフェニルグアニジンを含むゴム組成物に、特定量の酸化亜鉛及び更なる２次加硫促進剤としてジンクジベンジルジチオカルバメート及び／又は１，６−ビス（Ｎ，Ｎ’−ジベンジルチオカルバモイルジチオ）へキサンを配合することにより、タイヤトレッド用コンパウンドの転がり抵抗の低減及びウェット制動の改善を図ると共に、スコーチ性を悪化させることなく加硫速度を改善することができる。 According to the present invention, a rubber composition containing styrene butadiene copolymer rubber, silica, silane coupling agent, sulfur, vulcanization accelerator and diphenylguanidine as a secondary vulcanization accelerator, a specific amount of zinc oxide and By adding zinc dibenzyldithiocarbamate and / or 1,6-bis (N, N′-dibenzylthiocarbamoyldithio) hexane as a further secondary vulcanization accelerator, the rolling resistance of the compound for tire tread can be reduced. Reduction and improvement of wet braking can be achieved, and the vulcanization speed can be improved without deteriorating the scorch property.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102272097A (en) * | 2008-10-30 | 2011-12-07 | 莫门蒂夫性能材料股份有限公司 | Thiocarbamoyldisulfanyl-functional cycloaliphatic compound, process for its preparation, filled sulfur-vulcanizable elastomer composition containing same and articles fabricated therefrom |
| WO2012063797A1 (en) * | 2010-11-09 | 2012-05-18 | 住友ゴム工業株式会社 | Rubber composition for tires, and pneumatic tire |
| KR20150096847A (en) * | 2014-02-17 | 2015-08-26 | 현대자동차주식회사 | Rubber Composition For Tire Cap Tread and Mixing Method the Same |
| JP2020105378A (en) * | 2018-12-27 | 2020-07-09 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Rubber composition for tire, and pneumatic tire therewith |
| JP2020105380A (en) * | 2018-12-27 | 2020-07-09 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Rubber composition for tire, and pneumatic tire therewith |
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| JP2012102214A (en) * | 2010-11-09 | 2012-05-31 | Sumitomo Rubber Ind Ltd | Rubber composition for tire and pneumatic tire |
| KR20150096847A (en) * | 2014-02-17 | 2015-08-26 | 현대자동차주식회사 | Rubber Composition For Tire Cap Tread and Mixing Method the Same |
| KR101585448B1 (en) | 2014-02-17 | 2016-01-15 | 현대자동차주식회사 | Rubber Composition For Tire Cap Tread and Mixing Method the Same |
| JP2020105378A (en) * | 2018-12-27 | 2020-07-09 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Rubber composition for tire, and pneumatic tire therewith |
| JP2020105380A (en) * | 2018-12-27 | 2020-07-09 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Rubber composition for tire, and pneumatic tire therewith |
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