JPH02246805A - Tire for passenger car - Google Patents
Tire for passenger carInfo
- Publication number
- JPH02246805A JPH02246805A JP1066962A JP6696289A JPH02246805A JP H02246805 A JPH02246805 A JP H02246805A JP 1066962 A JP1066962 A JP 1066962A JP 6696289 A JP6696289 A JP 6696289A JP H02246805 A JPH02246805 A JP H02246805A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- tire
- temperature
- grip performance
- loss tangent
- 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 21
- 239000005060 rubber Substances 0.000 claims abstract description 21
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 244000043261 Hevea brasiliensis Species 0.000 abstract description 3
- 229920003052 natural elastomer Polymers 0.000 abstract description 3
- 229920001194 natural rubber Polymers 0.000 abstract description 3
- 229920003051 synthetic elastomer Polymers 0.000 abstract description 3
- 239000005061 synthetic rubber Substances 0.000 abstract description 3
- 229920001195 polyisoprene Polymers 0.000 abstract description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 238000004073 vulcanization Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 2
- 230000003712 anti-aging effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- -1 tackifiers Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Tires In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は低温から高温までの広い温度範囲にわたって高
いグリップ性能を有する高性能木用車用タイヤに関する
。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a high-performance wood vehicle tire that has high grip performance over a wide temperature range from low to high temperatures.
（従来の技術）
最近、自動車の性能の大幅な向上や道路の発達に伴い高
運動性能を備えた、空気入りタイヤに対する要求が強く
なってきた。高運動性タイヤの要求特性の中で加速性能
やブレーキ性能に代表されるグリップ性能（トレッドゴ
ムと路面の摩擦係数）は、特に重要な要求特性である。(Prior Art) Recently, with the significant improvement in the performance of automobiles and the development of roads, there has been a strong demand for pneumatic tires with high maneuverability. Among the characteristics required for highly maneuverable tires, grip performance (the coefficient of friction between the tread rubber and the road surface), represented by acceleration performance and braking performance, is a particularly important required characteristic.
このグリップ性能には温度依存性があり、例えば走行初
期（タイヤ温度が低い）と走行中（タイヤ温度が高い）
との温度変化に対し、グリップ性能の変化を少なくする
ことが望まれている。This grip performance has temperature dependence, for example, at the beginning of driving (tire temperature is low) and during driving (tire temperature is high).
It is desired to reduce changes in grip performance due to temperature changes.
（発明が解決しようとする課題）
本発明の目的は低温から高温までの広い温度範囲にわた
って高いグリップ性能を有する高性能木用車用タイヤを
提供することにある。(Problems to be Solved by the Invention) An object of the present invention is to provide a high-performance tire for a wooden vehicle that has high grip performance over a wide temperature range from low to high temperatures.
（課題を解決するための手段）
本発明はタイヤトレッド部のゴム組成物のＴａが一１０
〜θ℃であり且つ動的弾性率（Ｅｏ）が１００〜１７０
ｋｇ／ ｃｍ”であり、損失正接（ｔａｎδ）が０．４
０以上であることを特徴とする乗用車用タイヤに係る。(Means for Solving the Problems) The present invention provides that the rubber composition of the tire tread has a Ta of 110.
~θ°C and dynamic elastic modulus (Eo) of 100 to 170
kg/cm” and the loss tangent (tanδ) is 0.4
The present invention relates to a passenger car tire characterized in that the tire is 0 or more.
本発明者らはゴム組成物の温度依存性について鋭意研究
した結果、ゴム組成物のＴａ及び動的弾性率（Ｅｏ）、
損失正接（ｔａｎδ）を特定の範囲にすることにより低
温から高温までの広い温度範囲にわたって高いグリップ
性能を有する高性能乗用車用タイヤを得ることに成功し
た。尚、ここでは、温度をタイヤ温度として説明するが
もちろん気温等による温度変化についても同様である。As a result of intensive research into the temperature dependence of rubber compositions, the present inventors found that the Ta and dynamic elastic modulus (Eo) of the rubber composition,
By adjusting the loss tangent (tan δ) to a specific range, we succeeded in obtaining a high-performance passenger car tire that has high grip performance over a wide temperature range from low to high temperatures. Here, the temperature will be explained as tire temperature, but of course the same applies to temperature changes due to air temperature and the like.
又低温とは０〜４０℃を意味し、高温とは４０℃を越え
１００℃までを意味する。Also, low temperature means 0 to 40°C, and high temperature means over 40°C to 100°C.
本発明においてゴム成分としては天然ゴム（ＮＲ）及び
合成ゴムの１種又は２種以上が用いられる０合成ゴムと
しては例えばポリイソプレンゴム（ＩＲ）、ポリブタン
エンゴム（ＢＲ）、スチレンφブタジェンゴム（Ｓ Ｂ
Ｒ）、イソプレン・インブチレンゴム（ＩＩＲ）、エ
チレン・プロピレン・ツエンゴム（ＥＰＤＭ）、これら
の変性物、これらのブレンド物等がいずれも使用でξる
。これらのうち結合スチレンｇｋ４０％以上のＳＢＲを
ゴム成分１００重量部中に４０重置部以上含有している
のが好適である。In the present invention, one or more types of natural rubber (NR) and synthetic rubber are used as the rubber component. Examples of the synthetic rubber include polyisoprene rubber (IR), polybutane rubber (BR), and styrene φ butadiene rubber ( S B
R), isoprene-imbutylene rubber (IIR), ethylene-propylene-tene rubber (EPDM), modified products thereof, blends thereof, etc. can all be used. Among these, it is preferable that SBR containing bound styrene GK of 40% or more is contained in 40 parts or more per 100 parts by weight of the rubber component.
本発明のタイヤには公知の加硫剤、加硫促進剤、加硫促
進助剤、加硫遅延剤、有機過酸化物、補強剤、充填剤、
老化防止剤、粘着付与剤、着色剤等を添加できる。The tires of the present invention include known vulcanizing agents, vulcanization accelerators, vulcanization accelerators, vulcanization retarders, organic peroxides, reinforcing agents, fillers,
Antiaging agents, tackifiers, colorants, etc. can be added.
本発明のタイヤは上記成分を通常の加工１ｊｃｌＦ！、
例えばクール、バンバリーミキサ−、ニーダ−などによ
り混練することにより得られるゴム組成物を、タイヤの
トレッド部に使用することにより得られろ。The tire of the present invention is manufactured by processing the above-mentioned components in a normal manner. ,
For example, a rubber composition obtained by kneading with a cool, Banbury mixer, kneader, etc. may be used for the tread portion of a tire.
本発明のトレッド部のゴム組成物のＴａは岩本製作所製
帖弾性スペクトロメータを試験機として用い、幅５−１
厚さ０．５−一、試料長さ２０μ饋の試料にて振動数１
００Ｈｚ、動歪０．１５％にて−１００−＋３０℃まで
の温度分散条件にて測定し、その時の損失正接（ｔａｎ
δ）の極大値を示す温度をＴａとする。The Ta of the rubber composition of the tread portion of the present invention was determined using an Iwamoto Seisakusho Elasticity Spectrometer as a testing machine, and the width was 5-1.
The frequency is 1 for a sample with a thickness of 0.5-1 and a sample length of 20μ.
The loss tangent (tan
Let Ta be the temperature showing the maximum value of δ).
試料はタイヤより採取した。又、動的弾性率（Ｅｏ）及
び損失正接（ｊａｎと）は上記と同様の試験機を用い、
幅５論−１厚さ１鎗−１試料長さ２〇−一の試料にて振
動数１０Ｈｚ、動歪１％及び室温（２３℃）の条件下に
て、動的弾性率（Ｅｏ）及び損失正接（ｔａｎδ）を測
定した。試料はタイヤより採取した。Samples were taken from tires. In addition, the dynamic modulus of elasticity (Eo) and loss tangent (JAN) were measured using the same test machine as above,
Dynamic modulus of elasticity (Eo) and The loss tangent (tan δ) was measured. Samples were taken from tires.
本発明においてトレッド部のゴム組成物の１”ａは一１
０〜０℃であり、−１０℃より低ければ十分なグリップ
性能が得られず、０℃より高ければ低温でのグリップ性
能が問題となる。又、動的弾性率は１００−１７０ｋｇ
／ ａｍ２であり、１００ｋｇ／ ｅ＋＊２より低けれ
ば高温でのグリップ性能が問題となり、１７０ｋｇ／ｃ
ｍ２より高ければ低温でのグリップ性能が問題となる。In the present invention, 1"a of the rubber composition of the tread portion is 1"a.
If it is lower than -10°C, sufficient grip performance cannot be obtained, and if it is higher than 0°C, grip performance at low temperatures becomes a problem. Also, the dynamic elastic modulus is 100-170kg
/ am2, and if it is lower than 100kg/e+*2, grip performance at high temperatures becomes a problem, and 170kg/c
If it is higher than m2, grip performance at low temperatures becomes a problem.
ｊａｎとは０．４０以上、特に０．５〜０．８が好まし
く、０．４未満では十分なグリップ性能が得られない。jan is preferably 0.40 or more, particularly 0.5 to 0.8, and if it is less than 0.4, sufficient grip performance cannot be obtained.
本発明においてタイヤの製造は公知の方法に従って行う
ことができる。In the present invention, the tire can be manufactured according to a known method.
（発明の効果）
本発明の乗用車用タイヤは低温から高温までの広い温度
範囲にわたって高いグリップ性能を有する。(Effects of the Invention) The passenger car tire of the present invention has high grip performance over a wide temperature range from low to high temperatures.
〈実 施 例）
以下に実施例及び比較例を挙げて説明する。尚、単に部
とあるは重量部を示す。<Example> Examples and comparative examples will be described below. Note that parts simply indicate parts by weight.
実施例及び比較例
第１表に記載のブレンドゴム１ｏｏ部、カーボンブラッ
ク各部、アロマチック系プロセスオイル各部、亜鉛華３
部、ステアリン酸２部、老化防止剤（サント７レツクス
１３）１部、パラフィンワックス１部、加硫促進剤（Ｃ
Ｂ Ｓ ）１．４部及び硫黄２部を、バンバリーミキサ
−により均一に混練しゴム組成物を得、これをトレッド
とするタイヤを常法により得た。Examples and Comparative Examples 10 parts of the blended rubber listed in Table 1, each part of carbon black, each part of aromatic process oil, 3 parts of zinc white
1 part stearic acid, 1 part anti-aging agent (Santo 7 Rex 13), 1 part paraffin wax, vulcanization accelerator (C
BS) and 2 parts of sulfur were uniformly kneaded in a Banbury mixer to obtain a rubber composition, and a tire having a tread thereof was obtained by a conventional method.
得られたゴム組成物を１６０℃で２０分間、モールド加
硫し、その特性を測定した。結果をｔｌＳ１表に示す。The obtained rubber composition was mold-vulcanized at 160° C. for 20 minutes, and its properties were measured. The results are shown in table tlS1.
尚、サーキットにて操縦安定性のフィーリング評価をド
ライバー５人にて行い、その平均値を算出した。実施例
１の走行初期のフィーリングを５、σとしで評価し点が
高い程良好である。Furthermore, five drivers evaluated the feeling of steering stability at the circuit, and the average value was calculated. The feeling at the beginning of running in Example 1 was evaluated on a scale of 5 and σ, and the higher the score, the better.
走行初期フィーりング：最初のＩＬａｐにてフィーリン
グ評価した（タイヤ温度はいずれのタイヤも３０℃以下
である。又テスト時の気温は６〜８℃であった）。Initial driving feeling: The feeling was evaluated in the first ILap (tire temperature was 30°C or lower for all tires. Also, the air temperature at the time of the test was 6 to 8°C).
タイヤ温度上昇後のフィーりング：５Ｌａｐ走行後（５
Ｌａｐにて略タイヤ温度は一定となり、いずれのタイヤ
も６０℃以上である）にフィーりング評価した。Feeling after tire temperature rise: After 5 laps (5
The tire temperature was approximately constant at Lap, and the feeling was evaluated as 60° C. or higher for all tires.
Claims (1)
０℃であり且つ動的弾性率（Ｅ’）が１００〜１７０ｋ
ｇ／ｃｍ＾２であり、損失正接（ｔａｎδ）が０．４０
以上であることを特徴とする乗用車用タイヤ。(1) Tα of the rubber composition of the tire tread portion is -10 to
0°C and dynamic elastic modulus (E') of 100 to 170k
g/cm^2, and the loss tangent (tan δ) is 0.40
A passenger car tire characterized by the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1066962A JPH02246805A (en) | 1989-03-17 | 1989-03-17 | Tire for passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1066962A JPH02246805A (en) | 1989-03-17 | 1989-03-17 | Tire for passenger car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02246805A true JPH02246805A (en) | 1990-10-02 |
Family
ID=13331156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1066962A Pending JPH02246805A (en) | 1989-03-17 | 1989-03-17 | Tire for passenger car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02246805A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252290A (en) * | 1989-11-30 | 1993-10-12 | Jun Uesugi | Process for treatment and disposal of medical waste materials |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60116506A (en) * | 1983-11-29 | 1985-06-24 | Bridgestone Corp | Radial tire with excellent high-speed performance |
| JPS6185204A (en) * | 1984-10-02 | 1986-04-30 | Bridgestone Corp | Pneumatic radial tire for motorcycle |
-
1989
- 1989-03-17 JP JP1066962A patent/JPH02246805A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60116506A (en) * | 1983-11-29 | 1985-06-24 | Bridgestone Corp | Radial tire with excellent high-speed performance |
| JPS6185204A (en) * | 1984-10-02 | 1986-04-30 | Bridgestone Corp | Pneumatic radial tire for motorcycle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252290A (en) * | 1989-11-30 | 1993-10-12 | Jun Uesugi | Process for treatment and disposal of medical waste materials |
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