JPH03266706A - Pneumatic tire - Google Patents
Pneumatic tireInfo
- Publication number
- JPH03266706A JPH03266706A JP2062625A JP6262590A JPH03266706A JP H03266706 A JPH03266706 A JP H03266706A JP 2062625 A JP2062625 A JP 2062625A JP 6262590 A JP6262590 A JP 6262590A JP H03266706 A JPH03266706 A JP H03266706A
- Authority
- JP
- Japan
- Prior art keywords
- inorganic compound
- soluble inorganic
- rubber composition
- water
- tread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 33
- 239000005060 rubber Substances 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 150000002484 inorganic compounds Chemical class 0.000 claims abstract description 24
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 238000005187 foaming Methods 0.000 abstract 1
- 235000002639 sodium chloride Nutrition 0.000 description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 9
- 150000003839 salts Chemical class 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 239000001110 calcium chloride Substances 0.000 description 3
- 229910001628 calcium chloride Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MWRWFPQBGSZWNV-UHFFFAOYSA-N Dinitrosopentamethylenetetramine Chemical compound C1N2CN(N=O)CN1CN(N=O)C2 MWRWFPQBGSZWNV-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical class OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
Classifications
-
- Y02T10/862—
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、氷上摩擦性能を向上させた空気入りタイヤに
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pneumatic tire with improved friction performance on ice.
凍結した路面、特に氷と水とが混在するような０℃付近
の路面は、滑り易く、自動車の走行が危険である。Frozen road surfaces, especially roads at temperatures around 0° C. where ice and water coexist, are slippery and dangerous for motor vehicles.
そこで、従来、このような路面での安全な走行を可能と
するために、例えば、タイヤのトレッド部を低温でも軟
質のゴム材料で構成したり、発泡ゴム材料で構成したり
している。しかしながら、この場合、耐摩耗性に劣ると
いう問題がある。また、タイヤのトレッド部に砂を混入
することも捉案されているが（特開昭６１−１５０８０
３号公報）、この場合、走行に際してその砂が飛散して
粉塵公害が生じるなどの問題がある。Conventionally, in order to enable safe driving on such road surfaces, tire treads have been made of, for example, a rubber material that is soft even at low temperatures, or a foamed rubber material. However, in this case, there is a problem that the wear resistance is poor. It has also been proposed to mix sand into the tread of tires (Japanese Unexamined Patent Publication No. 61-15080
(No. 3), in this case, there are problems such as the sand being scattered during driving and causing dust pollution.
本発明は、このような事情にかんがみなされたものであ
って、耐摩耗性を実質的に損なうことな（、また、公害
問題の発生を伴うことなしに氷上摩擦性能を向上させた
空気入りタイヤを提供することを目的とする。The present invention was conceived in view of these circumstances, and provides a pneumatic tire that improves friction performance on ice without substantially impairing wear resistance (and without causing pollution problems). The purpose is to provide
本発明の空気入りタイヤは、水溶性無機化合物を含有し
ていて、その粒子同士が実質的に互いに接触していない
ゴム組成物でトレッド部を構成してなることを特徴とす
る。The pneumatic tire of the present invention is characterized in that the tread portion is made of a rubber composition containing a water-soluble inorganic compound, the particles of which are not substantially in contact with each other.
このように本発明では、粒子同士が実質的に互いに接触
していない状態で水溶性無機化合物を含有するゴム組成
物でタイヤのトレッド部を構成するため、凍結した路面
の走行時にトレッド表面の水溶性無機化合物が路面の水
に溶は出してトレッド表面に凹凸が形成されるので、氷
上摩擦性能を高めることができる。また、トレッド部の
内部の水溶性無機化合物は溶は出さないのでトレッド部
が発泡状態とはならないから、耐摩耗性が実質的に損な
われることはない。さらに、溶出した水溶性無機化合物
は粉塵となって飛散することがないから、公害問題も生
じない。In this way, in the present invention, the tread portion of the tire is made of a rubber composition containing a water-soluble inorganic compound in a state where the particles are not substantially in contact with each other. The inorganic compound dissolves into water on the road surface, forming irregularities on the tread surface, thereby improving friction performance on ice. Further, since the water-soluble inorganic compound inside the tread portion does not dissolve, the tread portion does not become foamed, so that wear resistance is not substantially impaired. Furthermore, since the eluted water-soluble inorganic compound does not become dust and scatter, no pollution problem occurs.
以下、上記手段につき詳しく説明する。The above means will be explained in detail below.
ここで用いる水溶性無機化合物は、“０℃の飽和溶液１
００ｇ中に１ｇ以上存在する”という０℃における水へ
の溶解度を有するものである。The water-soluble inorganic compound used here is a “saturated solution 1 at 0°C”.
It has a solubility in water at 0° C. of 1 g or more in 0.0 g.
この水溶性無機化合物としては、例えば、塩化カリウム
、塩化カルシウム、塩化鉄、塩化ナトリウム、塩化バリ
ウム、塩化マグネシウムなどの金属塩化物；硝酸カリウ
ム、硝酸ナトリウム等の硝酸化物；炭酸カリウム、炭酸
ナトリウム等の炭酸化合物；硫酸亜鉛、硫酸銅、硫酸化
鉄等の硫酸化合物が挙げられる。これらのうち、塩化ナ
トリウム、特に塩化ナトリウムを主成分とする食塩を用
いるのが好ましい。食塩は、入手し易く、安価だからで
ある。また、９０重量％以上が塩化ナトリウムおよび／
又は塩化カルシウムであるものを用いるのが好ましい。Examples of water-soluble inorganic compounds include metal chlorides such as potassium chloride, calcium chloride, iron chloride, sodium chloride, barium chloride, and magnesium chloride; nitrates such as potassium nitrate and sodium nitrate; and carbonates such as potassium carbonate and sodium carbonate. Compounds: Examples include sulfuric acid compounds such as zinc sulfate, copper sulfate, and iron sulfate. Among these, it is preferable to use sodium chloride, particularly common salt containing sodium chloride as a main component. This is because salt is easily available and inexpensive. In addition, 90% by weight or more is sodium chloride and/or
Or calcium chloride is preferably used.
本発明で用いるゴム組成物は、この水溶性無機化合物を
含有する。そして、この水溶性無機化合物は、ゴム組成
物内において粒子同士が実質的に互いに接触していない
。すなわち、ゴム組成物内において、水溶性無機化合物
の個々の粒子が実質的に独立に分散した状態となってい
る。このように分散していない場合には、すなわち、粒
子同士が互いに接触している場合には、そのゴム組成物
でタイヤのトレッド部を構成して凍結した路面を走行す
るとトレッド部の内部の水溶性無機化合物まで溶は出し
てトレッド表面から内部に至る連通孔が生じ、トレッド
部が内部まで発泡状態となり、耐摩耗性が損なわれるか
らである。The rubber composition used in the present invention contains this water-soluble inorganic compound. Particles of this water-soluble inorganic compound are not substantially in contact with each other within the rubber composition. That is, the individual particles of the water-soluble inorganic compound are substantially independently dispersed within the rubber composition. If the particles are not dispersed in this way, that is, if the particles are in contact with each other, then when the rubber composition forms the tread of a tire and the tire is driven on an icy road surface, the water solution inside the tread will be removed. This is because even the organic inorganic compounds are leached out, creating communicating pores from the tread surface to the inside, and the tread becomes foamed to the inside, impairing wear resistance.
水溶性無機化合物の個々の粒子を実質的に独立に分散さ
せるには、水溶性無機化合物の粒径および配合量を適宜
勘案して水溶性無機化合物をゴム組成物に配合し、混線
を行えばよい。すなわち、粒径が大きいときには配合量
を少なくし、一方、粒径が小さいときには配合量を多く
するなどすればよい。水溶性無機化合物の平均粒径は、
５〜２０００μ鋼程度が好ましい。５μ蒙未満では粒子
のゴム中への分散が困難となり、２０００μ曽超では耐
摩耗性がわるくなる。配合量は、ゴム組成物全容量のう
ち１〜５０容量％程度がよい、１容量％未満では配合効
果が現れず、５０容量％超では、一部、粒子同士が接触
してしまい、ゴム弾性率が低下し、耐摩耗性がわるくな
る。In order to disperse the individual particles of the water-soluble inorganic compound substantially independently, the water-soluble inorganic compound is blended into the rubber composition, taking into consideration the particle size and blending amount of the water-soluble inorganic compound, and mixed. good. That is, when the particle size is large, the amount to be blended may be reduced, while when the particle size is small, the amount to be blended may be increased. The average particle size of water-soluble inorganic compounds is
Approximately 5 to 2000μ steel is preferable. If it is less than 5 μm, it will be difficult to disperse the particles in the rubber, and if it exceeds 2000 μm, the abrasion resistance will deteriorate. The blending amount is preferably about 1 to 50% by volume of the total volume of the rubber composition. If it is less than 1% by volume, the blending effect will not appear, and if it exceeds 50% by volume, some of the particles will come into contact with each other, resulting in poor rubber elasticity. The wear resistance decreases and the wear resistance deteriorates.
また、このゴム組成物を構成するゴムとしては、特に限
定されるものではなく、例えば、天然ゴム、合成ポリイ
ソプレンゴム、ポリブタジェンゴム、スチレン−ブタジ
ェン共重合体ゴムなどのジエン系ゴムである。このゴム
組成物は、カーボンブランクなどの配合剤を他に適宜含
有する。Further, the rubber constituting this rubber composition is not particularly limited, and examples include diene rubbers such as natural rubber, synthetic polyisoprene rubber, polybutadiene rubber, and styrene-butadiene copolymer rubber. . This rubber composition appropriately contains other compounding agents such as carbon blank.
本発明の空気入りタイヤは、上記ゴム組成物でトレッド
部が構成されたものである。このトレッド部は、少なく
ともその接地面部が上記ゴム組成物で構成されていれば
よく、この場合、ゴム組成物がトレッド全体積の１０％
以上を占めることが好ましい。The pneumatic tire of the present invention has a tread portion made of the above rubber composition. This tread portion only needs to have at least its ground contact area made of the above-mentioned rubber composition, and in this case, the rubber composition accounts for 10% of the total tread volume.
It is preferable that the amount of
以下に実施例を示す。Examples are shown below.
実施例
第１表に示す配合内容（重量部）でゴム組成物Ａ−Ｉを
作製し、これらのゴム組成物について下記の方法にて氷
上摩擦係数を測定して氷上摩擦性能を評価した。また、
ピコ摩耗指数を測定して耐摩耗性を評価した。これらの
結果を第１表に示す。EXAMPLE Rubber compositions A-I were prepared with the formulation contents (parts by weight) shown in Table 1, and the coefficient of friction on ice of these rubber compositions was measured by the following method to evaluate the friction performance on ice. Also,
Wear resistance was evaluated by measuring the Pico wear index. These results are shown in Table 1.
上 、の゛ ：
試料の加硫は１６０℃×２０分、加圧プレスにより行っ
た。試料は試験前に＃８０の紙ヤスリで表面パフした。Top and bottom: Vulcanization of the sample was performed at 160° C. for 20 minutes using a pressure press. Samples were surface puffed with #80 sandpaper prior to testing.
測定はポータプルスキッドテスターを用いてＡＳＴＨＥ
−３０３により行った。路面は、−５℃に設定した水盤
を用いた。得られた氷上摩擦係数についてゴム組成物Ａ
の場合を１００として指数表示した。数値が大きい方が
氷上摩擦係数が高いことを表わす。Measurements are made using a portable skid tester.
-303. The road surface used was a water basin set at -5°C. Regarding the obtained coefficient of friction on ice, rubber composition A
It is expressed as an index with the case of 100 as 100. A larger number indicates a higher coefficient of friction on ice.
ピコ ５ の ：
ＡＳＴＭ Ｄ−２２２８により行った。数値が大きい方
が耐摩耗性が高いことを表わす。Pico 5: Performed according to ASTM D-2228. The larger the number, the higher the wear resistance.
（本頁以下余白）
注）
＊１： Ｎ−（１，３−ジメチルブチル）−Ｎ′−フェ
ニル−Ｐ−フェニレンジアミン。(Margin below this page) Note) *1: N-(1,3-dimethylbutyl)-N'-phenyl-P-phenylenediamine.
６２ ： Ｎ−シクロへキシル−２−ベンゾチアゾリル
スルヘンアミド。62: N-cyclohexyl-2-benzothiazolylsulfenamide.
傘３： 日本たばこ産業■製の「キッチンソルト」（商
品名）をボールミルで粉砕
し、２００メツシユ篩をパスし３３０メツシユ篩で止ま
ったものをサンプリング
した。平均粒径は５５μ鋤であった。Umbrella 3: "Kitchen Salt" (trade name) manufactured by Japan Tobacco Inc. was ground in a ball mill, and samples were taken of those that passed through a 200-mesh sieve and passed through a 330-mesh sieve. The average particle size was 55 microns.
傘４： 日本たばこ産業■製の「キッチンソルト」（
商品名）をボールミルで粉砕
し、７０メツシユ篩をパスし８３メツシユ篩で止まった
ものをサンプリングした。Umbrella 4: "Kitchen Salt" manufactured by Japan Tobacco (
(trade name) was ground in a ball mill, and those that passed through a 70-mesh sieve and remained on an 83-mesh sieve were sampled.
平均粒径は１９５μ−であった。The average particle size was 195μ.
＄５二 日本たばこ産業■製の「キッチンソルト」
（商品名）を水に溶解し、再結
晶後の粒を乾燥後、４メツシユ篩をパ
スし４．７メツシユ篩で止まったものをサンプリングし
た。平均粒径は４．２ｍｙａであった。$52 “Kitchen Salt” manufactured by Japan Tobacco
(trade name) was dissolved in water, the recrystallized grains were dried, passed through a 4-mesh sieve, and those that passed through a 4.7-mesh sieve were sampled. The average particle size was 4.2 mya.
ネ６：試薬一級品。平均粒径２５０μｍ。Ne6: First-class reagent. Average particle size 250 μm.
車７：海砂を洗浄乾燥後、７０メツシユ篩をパスし８３
メツシユ篩で止まったものをサンプリングした。平均粒
径は２００μ−であった。Car 7: After washing and drying the sea sand, it passed through a 70-mesh sieve and passed through a 83-mesh sieve.
I sampled what caught in the mesh sieve. The average particle size was 200μ.
ネ８：永和化成工業■製の商品名「セルラーＧＸＪ （
ジニトロソペンタメチレンテトラミン５０％十尿素５０
％）。Ne8: Product name “Cellular GXJ (
Dinitrosopentamethylenetetramine 50% decaurea 50
%).
第１表から、粒子同士が実質的に互いに接触していない
状態で水溶性無機化合物（食塩、塩化カルシウム）を含
有したゴム組成物Ｂ−Ｇが、水溶性無機化合物を含有し
ないゴム組成物Ａに比して耐摩耗性（ピコ摩耗指数）を
実質的に損なうことなしに氷上摩擦性能において優れる
ことが判る。また、砂粒を含有したゴム組成物Ｈは、耐
摩耗性および氷上摩擦性能において優れるものの、摩耗
試験時に砂粒の飛散が多く、実用的でない。発泡剤を含
有したゴム組成物Ｉは、氷上摩擦性能には優れるものの
耐摩耗性に劣る。From Table 1, rubber compositions B-G containing a water-soluble inorganic compound (salt, calcium chloride) in a state where the particles are not substantially in contact with each other are different from rubber composition A containing no water-soluble inorganic compound. It can be seen that it is superior in friction performance on ice without substantially impairing wear resistance (pico wear index). Further, although the rubber composition H containing sand grains has excellent wear resistance and friction performance on ice, many sand grains scatter during the wear test, making it impractical. Rubber composition I containing a foaming agent has excellent friction performance on ice but is inferior in abrasion resistance.
つぎに、ゴム組成物Ａ、Ｃ，Ｅでそれぞれトレッド部を
構成してタイヤサイズ１８５／７０ Ｒ１３の空気入り
タイヤを作製した（比較タイヤ１、本発明タイヤ１、本
発明タイヤ２）。これらのタイヤをそれぞれ国産５座セ
ダンに装着し、氷温８℃の氷結路面を気温−１２℃の下
に走行して時速３０ ｋ＋ｗ／ｈからの制動停止距離を
測定し、下記式により制動指数を求めた。この結果を第
２表に示す、数値が大きい方が氷上摩擦性能が高い、第
２表から、本発明タイヤ１．２が比較タイヤｌに比して
氷上摩擦性能に優れていることが判る。Next, pneumatic tires with a tire size of 185/70 R13 were prepared by configuring the tread portion with each of the rubber compositions A, C, and E (Comparative Tire 1, Inventive Tire 1, Inventive Tire 2). Each of these tires was installed on a domestically produced five-seater sedan, and the vehicle was run on an icy road surface with a temperature of 8 degrees Celsius at a temperature of -12 degrees Celsius.The braking distance from a speed of 30 k+w/h was measured, and the braking index was calculated using the following formula. I asked for The results are shown in Table 2. The larger the value, the higher the friction performance on ice. From Table 2, it can be seen that the tire 1.2 of the present invention has better friction performance on ice than the comparative tire 1.
（本頁以下余白）
！最巳表
〔発明の効果〕
以上説明したように本発明の空気入りタイヤは、粒子同
士が実質的に互いに接触していない状態で水溶性無機化
合物を含有するゴム組成物でタイヤのトレッド部を構成
するため、耐摩耗性を実質的に損なうことなく、また、
公害問題の発生を伴うことなしに氷上摩擦性能を向上さ
せることが可能となる。(Margins below this page)! [Effects of the Invention] As explained above, in the pneumatic tire of the present invention, the tread portion of the tire is coated with a rubber composition containing a water-soluble inorganic compound in a state where the particles are not substantially in contact with each other. structure, without substantially compromising wear resistance, and
It becomes possible to improve friction performance on ice without causing pollution problems.
Claims (1)
的に互いに接触していないゴム組成物でトレッド部を構
成してなる空気入りタイヤ。A pneumatic tire whose tread portion is made of a rubber composition containing a water-soluble inorganic compound, the particles of which are not substantially in contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2062625A JPH03266706A (en) | 1990-03-15 | 1990-03-15 | Pneumatic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2062625A JPH03266706A (en) | 1990-03-15 | 1990-03-15 | Pneumatic tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03266706A true JPH03266706A (en) | 1991-11-27 |
Family
ID=13205692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2062625A Pending JPH03266706A (en) | 1990-03-15 | 1990-03-15 | Pneumatic tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03266706A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599643A1 (en) * | 1992-11-26 | 1994-06-01 | Sumitomo Rubber Industries Ltd. | Rubber compositions of tyre tread |
| EP1164559A1 (en) * | 2000-05-31 | 2001-12-19 | JSR Corporation | Composition for polishing pad and polishing pad using the same |
| JP2008138046A (en) * | 2006-11-30 | 2008-06-19 | Sumitomo Rubber Ind Ltd | Studless tire |
| JP2011528735A (en) * | 2008-07-24 | 2011-11-24 | ソシエテ ド テクノロジー ミシュラン | Rubber composition for winter tire tread |
| JP2015512994A (en) * | 2012-04-10 | 2015-04-30 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | Rubber composition for tire tread containing potassium sulfate fine particles |
| JP2015160946A (en) * | 2014-02-28 | 2015-09-07 | 住友ゴム工業株式会社 | studless tire |
| WO2020129356A1 (en) * | 2018-12-19 | 2020-06-25 | 住友ゴム工業株式会社 | Tire |
-
1990
- 1990-03-15 JP JP2062625A patent/JPH03266706A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599643A1 (en) * | 1992-11-26 | 1994-06-01 | Sumitomo Rubber Industries Ltd. | Rubber compositions of tyre tread |
| US5804645A (en) * | 1992-11-26 | 1998-09-08 | Sumitomo Rubber Industries, Ltd. | Rubber compositions of tire tread |
| EP1164559A1 (en) * | 2000-05-31 | 2001-12-19 | JSR Corporation | Composition for polishing pad and polishing pad using the same |
| JP2008138046A (en) * | 2006-11-30 | 2008-06-19 | Sumitomo Rubber Ind Ltd | Studless tire |
| JP2011528735A (en) * | 2008-07-24 | 2011-11-24 | ソシエテ ド テクノロジー ミシュラン | Rubber composition for winter tire tread |
| JP2015512994A (en) * | 2012-04-10 | 2015-04-30 | コンパニー ゼネラール デ エタブリッスマン ミシュラン | Rubber composition for tire tread containing potassium sulfate fine particles |
| JP2015160946A (en) * | 2014-02-28 | 2015-09-07 | 住友ゴム工業株式会社 | studless tire |
| WO2020129356A1 (en) * | 2018-12-19 | 2020-06-25 | 住友ゴム工業株式会社 | Tire |
| CN113242880A (en) * | 2018-12-19 | 2021-08-10 | 住友橡胶工业株式会社 | Tyre for vehicle wheels |
| JPWO2020129356A1 (en) * | 2018-12-19 | 2021-11-04 | 住友ゴム工業株式会社 | tire |
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