JPH02147647A - Rubber composition - Google Patents
Rubber compositionInfo
- Publication number
- JPH02147647A JPH02147647A JP63299723A JP29972388A JPH02147647A JP H02147647 A JPH02147647 A JP H02147647A JP 63299723 A JP63299723 A JP 63299723A JP 29972388 A JP29972388 A JP 29972388A JP H02147647 A JPH02147647 A JP H02147647A
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- diene
- weight
- rubber composition
- rubber
- 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
- 229920001971 elastomer Polymers 0.000 title claims abstract description 23
- 239000005060 rubber Substances 0.000 title claims abstract description 23
- 239000000203 mixture Substances 0.000 title claims abstract description 17
- 229920000642 polymer Polymers 0.000 claims abstract description 33
- 150000001993 dienes Chemical class 0.000 claims abstract description 19
- 229920000098 polyolefin Polymers 0.000 claims abstract description 10
- 238000005299 abrasion Methods 0.000 abstract description 15
- -1 polypropylene Polymers 0.000 abstract description 7
- 229920002367 Polyisobutene Polymers 0.000 abstract description 5
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract description 5
- 229920001577 copolymer Polymers 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 229920001194 natural rubber Polymers 0.000 abstract description 3
- 244000043261 Hevea brasiliensis Species 0.000 abstract description 2
- 239000004698 Polyethylene Substances 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- 229920003052 natural elastomer Polymers 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 abstract description 2
- 229920001155 polypropylene Polymers 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 238000005984 hydrogenation reaction Methods 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000005062 Polybutadiene Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229920002857 polybutadiene Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000010692 aromatic oil Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- ICGLPKIVTVWCFT-UHFFFAOYSA-N 4-methylbenzenesulfonohydrazide Chemical compound CC1=CC=C(S(=O)(=O)NN)C=C1 ICGLPKIVTVWCFT-UHFFFAOYSA-N 0.000 description 1
- IZSHZLKNFQAAKX-UHFFFAOYSA-N 5-cyclopenta-2,4-dien-1-ylcyclopenta-1,3-diene Chemical group C1=CC=CC1C1C=CC=C1 IZSHZLKNFQAAKX-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- OUBMGJOQLXMSNT-UHFFFAOYSA-N N-isopropyl-N'-phenyl-p-phenylenediamine Chemical compound C1=CC(NC(C)C)=CC=C1NC1=CC=CC=C1 OUBMGJOQLXMSNT-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- YDZWPBPSQHXITB-UHFFFAOYSA-N [Rh].[Au] Chemical compound [Rh].[Au] YDZWPBPSQHXITB-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229920006037 cross link polymer Polymers 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000012280 lithium aluminium hydride Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- UIEKYBOPAVTZKW-UHFFFAOYSA-L naphthalene-2-carboxylate;nickel(2+) Chemical compound [Ni+2].C1=CC=CC2=CC(C(=O)[O-])=CC=C21.C1=CC=CC2=CC(C(=O)[O-])=CC=C21 UIEKYBOPAVTZKW-UHFFFAOYSA-L 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 150000003303 ruthenium Chemical class 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はゴム組成物に関し、更に詳しくはヒステリシス
ロスが大で踏面グリップ力に優れ、破壊強度及び耐摩耗
性良好にしてかつ耐熱性に優れている高性能空気入りタ
イヤのトレッドに好適なゴム組成物に関するものである
。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a rubber composition, and more specifically, it has a large hysteresis loss, excellent tread grip, good breaking strength and abrasion resistance, and excellent heat resistance. The present invention relates to a rubber composition suitable for the tread of high-performance pneumatic tires.
（従来の技術）
従来、高性能タイヤのトレッドにおいて踏面グリップ力
を向上させるためにヒステリシスロスの大きい重合体、
例えば高スチレン含量の乳化重合あるいは溶液重合スチ
レン−ブタジェン共重合体を用いたり、多量のアロマテ
ィックオイルなどの軟化剤を配合したゴム組成物を使用
したりすることが知られる。(Prior Art) Conventionally, polymers with large hysteresis loss,
For example, it is known to use an emulsion-polymerized or solution-polymerized styrene-butadiene copolymer with a high styrene content, or to use a rubber composition containing a large amount of a softener such as an aromatic oil.
（発明が解決しようとする課題）
しかしながら、前記のように高スチレン含有率を存する
スチレン−ブタジェン共重合体を用いたゴム組成物では
高グリップが得られる反面、耐摩耗性及び耐熱性が著し
く劣る。また、アロマティックオイルなどの軟化剤を多
量に配合することは破壊強度、耐摩耗性及び耐熱性を著
しく損なうので好ましくないことが確認された。(Problem to be Solved by the Invention) However, as mentioned above, although a rubber composition using a styrene-butadiene copolymer with a high styrene content can provide high grip, it has significantly poor abrasion resistance and heat resistance. . Furthermore, it was confirmed that blending a large amount of a softener such as aromatic oil is not preferable because it significantly impairs breaking strength, abrasion resistance, and heat resistance.
したがって、本発明の目的は、成分ゴムのヒステリシス
ロスが大で耐熱性に優れ、かつ破壊特性及び耐摩耗性が
良好なゴム組成物を提供し、該ゴム組成物をトレッドに
備えることにより空気入りタイヤの性能を向上すること
にある。Therefore, an object of the present invention is to provide a rubber composition whose component rubber has a large hysteresis loss, excellent heat resistance, and good fracture characteristics and abrasion resistance. The purpose is to improve tire performance.
（課題を解決するための手段）
本発明者らは上記課題を解決するため鋭意研究を重ねた
結果、特定のジエン系水素添加重合体と特定の低分子量
ポリオレフィン系重合体とを含むゴム組成物により上記
目的に適合するゴム組成物が得られることを確かめ、本
発明を完成するに至った。(Means for Solving the Problems) As a result of extensive research in order to solve the above problems, the present inventors have developed a rubber composition containing a specific hydrogenated diene polymer and a specific low molecular weight polyolefin polymer. It was confirmed that a rubber composition suitable for the above purpose could be obtained by the above method, and the present invention was completed.
すなわち本発明は、重量平均分子量が３０００００以上
のジエン系重合体において該重合体のジエン部分の不飽
和結合の少なくとも６０％以上水素添加された一種以上
の重合体１００重量部に対して、重量平均分子量ｓｏｏ
ｏ〜２０００００の非架橋ポリオレフィン系重合体１０
〜２００重量部が配合されてなるゴム組成物に関するも
のである。That is, the present invention provides a diene polymer having a weight average molecular weight of 300,000 or more, based on 100 parts by weight of at least 60% of the unsaturated bonds in the diene portion of the polymer. Molecular weight soo
o~200000 non-crosslinked polyolefin polymer 10
This relates to a rubber composition containing up to 200 parts by weight.
本発明において用いるジエン系重合体としては各種ジエ
ン系重合体を用いることができるが、溶液重合スチレン
〜ブクジエン共重合体、乳化重合スチレン−ブタジェン
共重合体、天然ゴム、ポリイソプレンゴム、ポリブタジ
ェンゴムなどが好ましい。Various diene polymers can be used as the diene polymer used in the present invention, including solution polymerized styrene-butadiene copolymer, emulsion polymerized styrene-butadiene copolymer, natural rubber, polyisoprene rubber, and polybutadiene copolymer. Rubber etc. are preferred.
かかるジエン系重合体は、通常、ジシクロペンタジェニ
ル、チタンハライド、有機カルボン酸ニンケル、有機カ
ルボン酸コバルトと１〜３族の有機金属化合物から成る
水素化触媒、カーボン、シリカ、ケイソウ上などで担持
されたニッケル、白金、パラジウム、ルテニウム、レニ
ウム、ロジウム金ｉ 触媒やコバルト、ニッケル、ロジ
ウム、ルテニウム錯体などを触媒として水素の１〜１０
０気圧の加圧下、もしくはリチウムアルミニウムハイド
ライド、ｐ−トルエンスルホニルヒドラジドもしくはＺ
ｒ−Ｔｉ−Ｆｅ−Ｖ−Ｃｒ合金、Ｚｒ−Ｔｉ−Ｎｂ−Ｆ
ｅ−Ｖ−Ｃｒ合金、ＬａＮ ｉ ５合金などの水素貯蔵
合金の存在下で水素化する。Such diene polymers are usually prepared by hydrogenation catalysts consisting of dicyclopentadienyl, titanium halide, organic carboxylic acid nickel, organic carboxylic acid cobalt and organometallic compounds of groups 1 to 3, carbon, silica, diatom, etc. 1 to 10 of hydrogen using supported nickel, platinum, palladium, ruthenium, rhenium, rhodium gold i catalysts, cobalt, nickel, rhodium, ruthenium complexes, etc. as catalysts.
Under pressure of 0 atmospheres or lithium aluminum hydride, p-toluenesulfonyl hydrazide or Z
r-Ti-Fe-V-Cr alloy, Zr-Ti-Nb-F
Hydrogenation is carried out in the presence of a hydrogen storage alloy such as e-V-Cr alloy, LaN i 5 alloy.
また、本発明におけるポリオレフィン系重合体は不飽和
結合を１個のみしか存さない単量体一種以上から誘導さ
れるものであり、従って重合した生成重合体には不飽和
の部分が実質的にない、すなわち非架橋重合体である。Furthermore, the polyolefin polymer in the present invention is derived from one or more monomers having only one unsaturated bond, and therefore the resulting polymer contains substantially no unsaturated portion. It is a non-crosslinked polymer.
具体的にはポリプロピレン、ポリエチレン、エチレン−
プロピレン共重合体、ポリイソブチレン等を挙げること
ができ、好ましくはポリイソブチレンを用いる。Specifically, polypropylene, polyethylene, ethylene-
Examples include propylene copolymers, polyisobutylene, etc., and polyisobutylene is preferably used.
（作 用）
本発明において高分子量ジエン系重合体の重量平均分子
量は３０００００以上で、該重合体の水素添加率はジエ
ン部分の二重結合に対して少なくとも６０％以上、好ま
しくは８０％以上であることを要するが、この理由はか
かる分子量が３０万未満では耐摩耗性及び破壊強度が十
分ではなく、また水素添加率が６０％未満では耐熱性に
劣り、更に、ブレンドする低分子量ポリオレフィン系重
合体との相溶性に劣り、破壊強度及び耐摩耗性が大幅に
低下するからである。(Function) In the present invention, the weight average molecular weight of the high molecular weight diene polymer is 300,000 or more, and the hydrogenation rate of the polymer is at least 60% or more, preferably 80% or more, relative to the double bonds in the diene moiety. The reason for this is that if the molecular weight is less than 300,000, the abrasion resistance and fracture strength are insufficient, and if the hydrogenation rate is less than 60%, the heat resistance is poor. This is because the compatibility with coalescence is poor, and the fracture strength and abrasion resistance are significantly reduced.
一方、本発明に用いる低分子量ポリオレフィン系重合体
の分子量は５０００〜２０００００であることを要する
が、この理由はかかる分子量が５０００未満ではグリッ
プ性の改良効果が小さく、一方２０００００を越えると
マトリックス部の重合体、すなわちジエン系重合体との
相溶性に劣り、破壊強度及び耐摩耗性が低下することに
なるからである。On the other hand, the molecular weight of the low molecular weight polyolefin polymer used in the present invention is required to be 5,000 to 200,000.The reason for this is that if the molecular weight is less than 5,000, the grip property improvement effect is small, while if it exceeds 200,000, the matrix portion This is because the compatibility with the polymer, that is, the diene polymer, is poor, and the breaking strength and abrasion resistance are reduced.
更に、この低分子量ポリオレフィン系重合体は、ジエン
系水素添加重合体１００重量部に対し１０〜２００重量
部配合す置部とを要する。これは、配合量が１０重量部
未満では充分なグリップ性の向上がみられず、２００重
量部を越えると破壊強度及び耐摩耗性が低下するからで
ある。Further, this low molecular weight polyolefin polymer needs to be added in an amount of 10 to 200 parts by weight per 100 parts by weight of the hydrogenated diene polymer. This is because if the amount is less than 10 parts by weight, sufficient improvement in grip properties will not be observed, and if it exceeds 200 parts by weight, the breaking strength and abrasion resistance will decrease.
本発明のゴム組成物には、通常のゴム工業で用いられる
配合剤、例えばカーボンブランク、炭酸カルシウム、シ
リカ、軟化剤、老化防止剤、加硫剤、加硫促進剤、加硫
助剤等を適宜配合することができる。The rubber composition of the present invention contains compounding agents commonly used in the rubber industry, such as carbon blank, calcium carbonate, silica, softeners, anti-aging agents, vulcanizing agents, vulcanization accelerators, and vulcanization aids. They can be blended as appropriate.
以上の構成より、本発明のゴム組成物は各種タイヤに好
適に適用することができるが、特にはレース用タイヤ、
二輪車用タイヤ、乗用車用タイヤ等の高運動性能タイヤ
に有利に適用することができる。From the above structure, the rubber composition of the present invention can be suitably applied to various tires, but in particular, racing tires,
It can be advantageously applied to tires with high maneuverability such as tires for two-wheeled vehicles and tires for passenger cars.
（実施例） 以下に実施例を挙げて本発明を更に具体的に説明する。(Example) The present invention will be explained in more detail with reference to Examples below.
−・ １１〜６、 １［１工
高分子量ジエン系重合体として、下記の第１表に示す特
徴を有するポリブタジェン（ミクロ構造：シス／トラン
ス／ビニルー５／１１／２４ （％））を合成した。-・11-6, 1 [1 Polybutadiene (microstructure: cis/trans/vinyl-5/11/24 (%)) having the characteristics shown in Table 1 below was synthesized as a high molecular weight diene polymer. .
尚、水素化は次のようにして行った。Note that hydrogenation was performed as follows.
ポリブタジェン３００ ｇを５２オートクレーブに仕込
み、１０％トルエン溶液とした。系内を窒素で置換した
後、予め、別容器で調製したナフテン酸ニッケル：トリ
エチルアルミニウムニブクジエン＝１：３：３（モル比
）の触媒液を共重合体中のブタジェン部１０００モルに
対しニッケル１モルとなるように仕込んだ。その後、反
応系内に水素圧力３０ｋｇ／ｃｍ”で水素を導入し、８
０°Ｃで反応した。300 g of polybutadiene was placed in a 52 autoclave to form a 10% toluene solution. After purging the system with nitrogen, a catalyst solution of nickel naphthenate: triethylaluminum nibucdiene = 1:3:3 (mole ratio) prepared in advance in a separate container was added to 1000 moles of butadiene in the copolymer. The amount of nickel was 1 mole. After that, hydrogen was introduced into the reaction system at a hydrogen pressure of 30 kg/cm'', and
The reaction was carried out at 0°C.
男ニーＬ−表−
上記第１表中、水素添加利率は四塩化炭素を溶媒として
用い、１５重量％の濃度で測定した１００Ｍ１ｌｚの’
ＩＩ−ＮＭＲの不飽和結合部のスペクトルの減少から算
出した。Men's knee L - Table - In Table 1 above, the hydrogenation rate is 100M1lz' measured at a concentration of 15% by weight using carbon tetrachloride as a solvent.
It was calculated from the decrease in the spectrum of unsaturated bonds in II-NMR.
また、重量平均分子量（匹）は、ＷＡＴＥＲＳ社製２０
０型ＧＩ’Ｃにて測定し、標準サンプルとしてポリスチ
レンを用いた。In addition, the weight average molecular weight (fish) is 20
It was measured using type 0 GI'C, and polystyrene was used as a standard sample.
前記ジエン重合体Ａ−Ｅを下記の第２表に示す配合処方
により混練し、１４５°Ｃ×６０分の加硫条件で加硫し
た。得られた加硫物の引張り強さ、耐熱性（熱老化特性
）、耐摩耗性を次のようにして評価した。The diene polymers A to E were kneaded according to the formulation shown in Table 2 below, and vulcanized at 145°C for 60 minutes. The tensile strength, heat resistance (heat aging characteristics), and abrasion resistance of the obtained vulcanizate were evaluated as follows.
引張り強さはＪＩＳに６３０１ に準１処した。The tensile strength was rated at JIS 6301, level 1.
耐熱性（熱老化特性）は、次式、 初期の引張り強さ に従い、熱老化後の引張り強さ保持率として評価した。Heat resistance (heat aging characteristics) is calculated by the following formula: initial tensile strength Accordingly, the tensile strength retention rate after heat aging was evaluated.
耐摩耗性は、ＤＩＮ摩耗試験機を用いて、実施例１を１
００としたときの指数で評価した。数値が大きい程耐摩
耗性が良好であることを示す。Abrasion resistance was measured using a DIN abrasion tester, comparing Example 1 to 1.
Evaluation was made using the index when it was set to 00. The larger the value, the better the wear resistance.
得られた測定結果を下記の第３表に示す。The measurement results obtained are shown in Table 3 below.
第一」Ｌ−表
ｍｌ・・・第１表記載の重合体
＊２・・・ポリイソブチレン
＊３・・・Ｎ−フェニル−Ｎ′−イソプロピル−ｐ−フ
ェニレンジアミン
＊４・・・２．２′−ジチオ−ビス−ヘンジチアゾール
本５・・・１．３−シフェニルグアニジン策−」し−表
次に、前記供試ゴム組成物と同一のものをトレッドゴム
として構成した乗用車用ラジアルタイヤＰ２２５／６０
Ｒ１４について実車試験により路面グリップ性及び耐摩
耗性を評価した。1" L-Table ml...Polymer listed in Table 1*2...Polyisobutylene*3...N-phenyl-N'-isopropyl-p-phenylenediamine*4...2.2 '-Dithio-bis-hendithiazole Book 5...1.3-Cyphenylguanidine measure-' Table Next, a radial tire for passenger cars P225 whose tread rubber was composed of the same as the above-mentioned test rubber composition. /60
R14 was evaluated for road grip and wear resistance through actual vehicle tests.
路面グリップ性は乾燥路面での直線、曲線より成る周回
路を実車で走行し、その走行ラップタイムを測定し、比
較例４のタイヤを１００として指数表示した。数値の大
きい程結果が良好である。得られた結果を下記の第４表
に示す。The road grip property was determined by driving an actual vehicle on a circuit consisting of straight lines and curves on a dry road surface, measuring the driving lap time, and displaying the results as an index, with the tires of Comparative Example 4 set as 100. The larger the value, the better the result. The results obtained are shown in Table 4 below.
第４表 ことが分かった。Table 4 That's what I found out.
これに対して、比較例１〜７は耐熱性、耐摩耗性、破壊
強度、路面グリップ性のバランスに欠けるため、空気入
りタイヤのトレッドゴム組成物として好適でないことが
分かる。尚、比較例６について耐熱性、耐摩耗性は問題
ないが、グリップ性が大幅に低下した。On the other hand, it can be seen that Comparative Examples 1 to 7 are not suitable as tread rubber compositions for pneumatic tires because they lack a balance in heat resistance, abrasion resistance, breaking strength, and road grip. In Comparative Example 6, there were no problems in heat resistance and abrasion resistance, but grip performance was significantly reduced.
（発明の効果）
以上説明してきたように、本発明は特定のジエン系水素
添加重合体と特定の非架橋ポリオレフィン系重合体とを
特定量比でブレンドしたことにより、トレッドに用いる
ゴム組成物に高性能タイヤに必要な耐熱性、耐摩耗性及
び路面グリップ性を良好なバランスで同時に付与するこ
とができた。(Effects of the Invention) As explained above, the present invention provides a rubber composition for use in a tread by blending a specific hydrogenated diene polymer and a specific non-crosslinked polyolefin polymer in a specific amount ratio. We were able to simultaneously provide a good balance of heat resistance, abrasion resistance, and road grip that are necessary for high-performance tires.
Claims (1)
体において該重合体のジエン部分の不飽和結合の少なく
とも６０％以上水素添加された一種以上の重合体１００
重量部に対して、重量平均分子量５０００〜２００００
０の非架橋ポリオレフィン系重合体１０〜２００重量部
が配合されたことを特徴とする空気入りゴム組成物。1. One or more diene polymers having a weight average molecular weight of 300,000 or more, in which at least 60% or more of the unsaturated bonds in the diene portion of the polymer are hydrogenated 100
Weight average molecular weight 5,000 to 20,000 per part by weight
1. An aerated rubber composition characterized in that 10 to 200 parts by weight of a non-crosslinked polyolefin polymer of 0.0 is blended.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63299723A JP2523169B2 (en) | 1988-11-29 | 1988-11-29 | Rubber composition for tread of pneumatic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63299723A JP2523169B2 (en) | 1988-11-29 | 1988-11-29 | Rubber composition for tread of pneumatic tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02147647A true JPH02147647A (en) | 1990-06-06 |
| JP2523169B2 JP2523169B2 (en) | 1996-08-07 |
Family
ID=17876186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63299723A Expired - Lifetime JP2523169B2 (en) | 1988-11-29 | 1988-11-29 | Rubber composition for tread of pneumatic tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2523169B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3208108A1 (en) | 2016-02-18 | 2017-08-23 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire and method for producing pneumatic tire |
| EP3208107A1 (en) | 2016-02-18 | 2017-08-23 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| EP3326838A1 (en) | 2016-11-22 | 2018-05-30 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| US10428203B2 (en) | 2014-09-08 | 2019-10-01 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| CN110326128A (en) * | 2018-01-31 | 2019-10-11 | 株式会社Lg化学 | Diaphragm includes the lithium secondary battery of diaphragm and its manufacturing method |
| WO2020031904A1 (en) | 2018-08-06 | 2020-02-13 | 住友ゴム工業株式会社 | Pneumatic tire |
| US10808082B2 (en) | 2016-10-31 | 2020-10-20 | Sumitomo Rubber Industries, Ltd. | Method for kneading a polymer |
| EP3868823A2 (en) | 2020-02-21 | 2021-08-25 | Sumitomo Rubber Industries, Ltd. | Rubber composition and tire |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6114248A (en) * | 1984-06-30 | 1986-01-22 | Mitsubishi Petrochem Co Ltd | Thermoplastic resin composition |
| JPS61155446A (en) * | 1984-07-26 | 1986-07-15 | Asahi Chem Ind Co Ltd | Hydrogenated block copolymer composition |
-
1988
- 1988-11-29 JP JP63299723A patent/JP2523169B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6114248A (en) * | 1984-06-30 | 1986-01-22 | Mitsubishi Petrochem Co Ltd | Thermoplastic resin composition |
| JPS61155446A (en) * | 1984-07-26 | 1986-07-15 | Asahi Chem Ind Co Ltd | Hydrogenated block copolymer composition |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10428203B2 (en) | 2014-09-08 | 2019-10-01 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| US10526472B2 (en) | 2016-02-18 | 2020-01-07 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire and method for producing pneumatic tire |
| EP3208107A1 (en) | 2016-02-18 | 2017-08-23 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| EP3208108A1 (en) | 2016-02-18 | 2017-08-23 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire and method for producing pneumatic tire |
| US10808082B2 (en) | 2016-10-31 | 2020-10-20 | Sumitomo Rubber Industries, Ltd. | Method for kneading a polymer |
| EP3326838A1 (en) | 2016-11-22 | 2018-05-30 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| US10472505B2 (en) | 2016-11-22 | 2019-11-12 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| CN110326128A (en) * | 2018-01-31 | 2019-10-11 | 株式会社Lg化学 | Diaphragm includes the lithium secondary battery of diaphragm and its manufacturing method |
| US11637311B2 (en) | 2018-01-31 | 2023-04-25 | Lg Chem, Ltd. | Separator, lithium secondary battery including separator, and manufacturing method thereof |
| WO2020031904A1 (en) | 2018-08-06 | 2020-02-13 | 住友ゴム工業株式会社 | Pneumatic tire |
| US12091550B2 (en) | 2018-08-06 | 2024-09-17 | Sumitomo Rubber Industries, Ltd. | Pneumatic tire |
| EP3868823A2 (en) | 2020-02-21 | 2021-08-25 | Sumitomo Rubber Industries, Ltd. | Rubber composition and tire |
| JP2021130800A (en) * | 2020-02-21 | 2021-09-09 | 住友ゴム工業株式会社 | Rubber composition and tire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2523169B2 (en) | 1996-08-07 |
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