JPH0441535A - Tread rubber composition for studless tire - Google Patents
Tread rubber composition for studless tireInfo
- Publication number
- JPH0441535A JPH0441535A JP2150262A JP15026290A JPH0441535A JP H0441535 A JPH0441535 A JP H0441535A JP 2150262 A JP2150262 A JP 2150262A JP 15026290 A JP15026290 A JP 15026290A JP H0441535 A JPH0441535 A JP H0441535A
- Authority
- JP
- Japan
- Prior art keywords
- pts
- rubber
- parts
- weight
- tread 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.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 33
- 239000005060 rubber Substances 0.000 title claims abstract description 33
- 239000000203 mixture Substances 0.000 title claims abstract description 19
- 239000004677 Nylon Substances 0.000 claims abstract description 19
- 229920001778 nylon Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 11
- 229920001194 natural rubber Polymers 0.000 claims abstract description 8
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 7
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 7
- 150000001993 dienes Chemical class 0.000 claims description 4
- 229920003051 synthetic elastomer Polymers 0.000 claims description 4
- 239000005061 synthetic rubber Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 abstract description 5
- 229920002857 polybutadiene Polymers 0.000 abstract description 4
- 238000004073 vulcanization Methods 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 2
- 235000021355 Stearic acid Nutrition 0.000 abstract description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 abstract description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 abstract description 2
- 239000010734 process oil Substances 0.000 abstract description 2
- 239000008117 stearic acid Substances 0.000 abstract description 2
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 239000011593 sulfur Substances 0.000 abstract description 2
- 229920003244 diene elastomer Polymers 0.000 abstract 2
- 239000006229 carbon black Substances 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000000654 additive Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000010057 rubber processing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical group [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は凍結路面及び雪上での制動性能を向上できるス
タッドレスタイヤ用トレンドゴム組成物に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a trend rubber composition for studless tires that can improve braking performance on frozen road surfaces and snow.
（従来の技術）
従来、凍結路面や雪上での車の走行に際し、その制動性
能を確保するためにスパイクタイヤやタイヤチェーンが
使用されてきた。またトレッドゴム材質を改良すること
によりスタッドなしでも上記制動性能を向上させようと
する試みもある。(Prior Art) Spiked tires and tire chains have conventionally been used to ensure braking performance when driving on frozen roads or snow. There have also been attempts to improve the braking performance without studs by improving the tread rubber material.
（発明が解決しようとする課題）
しかしながら、スパイクタイヤやタイヤチェーンの使用
は乾燥路面の損傷が激しく、それによる粉塵公害が大き
な社会問題となっている。一方トレ、ドゴム材質の開発
により、ある程度の効果をあげているものの、限界があ
り、氷上での制動性能は十分でな（、改良が望まれてい
る。(Problems to be Solved by the Invention) However, the use of spiked tires and tire chains causes severe damage to dry road surfaces, and the resulting dust pollution has become a major social problem. On the other hand, although the development of rubber materials has achieved some degree of effectiveness, there are limitations, and braking performance on ice is insufficient (improvements are desired).
（課題を解決するための手段）
本発明者は、種々検討の結果、トレンドゴム成分に、特
定の粒子径を有するナイロン樹脂を特定量配合すること
により、氷上で優れた制動性能を有するスタッドレスタ
イヤにできることを見出し、本発明に到った。(Means for Solving the Problems) As a result of various studies, the present inventor has developed a studless tire that has excellent braking performance on ice by blending a specific amount of nylon resin with a specific particle size into a trend rubber component. We have discovered that this can be done, and have arrived at the present invention.
すなわち、本発明は、天然ゴム及びジエン系合成ゴムを
主体としたトレッドゴム成分において、該ゴム成分１０
０重量部に対し、平均粒子径２０〜１５０μｍを有する
ナイロン樹脂３〜２０重量部が配合されてなることを特
徴とするスタ・ノドレスタイヤ用トレッドゴム組成物で
ある。That is, the present invention provides a tread rubber component mainly composed of natural rubber and diene-based synthetic rubber.
This is a tread rubber composition for star-nosed tires, characterized in that 3 to 20 parts by weight of a nylon resin having an average particle diameter of 20 to 150 μm is blended to 0 parts by weight.
本発明の組成物に用いられるナイロン樹脂としては、例
えば６−ナイロン、６，６−ナイロン、１２−ナイロン
などが挙げられる。そして本発明においては、平均粒子
径２０〜１５０μｍを有するナイロン樹脂が用いられる
。ここで平均粒子径が２０μｍ未満であると、凍結路面
における制動性能の向上はなく、平均粒子径が１５０μ
−を越えると、トレッドゴム組成物の加工性が悪く、加
工製品の引張強度の低下が大きくなり、好ましくない。Examples of the nylon resin used in the composition of the present invention include 6-nylon, 6,6-nylon, and 12-nylon. In the present invention, a nylon resin having an average particle diameter of 20 to 150 μm is used. If the average particle size is less than 20μm, there will be no improvement in braking performance on frozen roads, and if the average particle size is less than 150μm, there will be no improvement in braking performance on frozen roads.
If it exceeds -, the processability of the tread rubber composition will be poor and the tensile strength of the processed product will be greatly reduced, which is not preferable.
また本発明の組成物におけるナイロン樹脂の配合量は、
天然ゴム及びジエン系合成ゴムを主体としたトレッドゴ
ム成分１００重量部に対して、３〜２０重量部である。Further, the amount of nylon resin blended in the composition of the present invention is
The amount is 3 to 20 parts by weight per 100 parts by weight of the tread rubber component, which is mainly composed of natural rubber and diene-based synthetic rubber.
ここで配合量が３重量部未満であると、凍結路面におけ
る制動性能は向上せず、２０重量部を越えると、バンバ
リーミキサ−やロールによる混練り等の際の加工性が著
しく低下し、加工製品の耐摩耗性の低下が大きくなり、
いずれも好ましくない。If the amount is less than 3 parts by weight, the braking performance on frozen roads will not improve, and if it exceeds 20 parts by weight, the processability during kneading with a Banbury mixer or rolls will be significantly reduced. The wear resistance of the product will decrease significantly,
Both are unfavorable.
本発明において、トレッドを形成するトレッドゴムはで
きれば低温特性の良好なものを使用すればよい。その代
表的組成を挙げると次の通りである。天然ゴム又は／及
びポリイソプレンゴム１０〜１００重量部とポリブタジ
ェンゴム、ポリスチレンブタジェンゴム等のジエン系合
成ゴム９０重量部以下からなるブレンドゴム１００重量
部に対し、カーボンブランク４０〜８５重量部が配合さ
れ、また場合によっては、ホワイトカーボン、シラン改
質クレー等の親水性無機補強剤を１０〜３０重量部を添
加したものであってもよく、その他、通常ゴム加工工業
で常用するものを常用量で添加したものでもよい。例え
ば、ブレンドゴム１００重量部に対し、酸化亜鉛２〜６
重量部、ステアリン酸１〜３重量部、プロセスオイル２
０〜５０重量部、硫黄１．５〜３．５重量部、加硫促進
剤０．５〜２．５重量部、また老化防止剤やワックス各
１〜３重量部、さらに顔料、染料、接着改良剤等の常用
量を挙げることができる。In the present invention, the tread rubber forming the tread should preferably have good low-temperature properties. Typical compositions thereof are as follows. 40 to 85 parts by weight of carbon blank per 100 parts by weight of blended rubber consisting of 10 to 100 parts by weight of natural rubber or/and polyisoprene rubber and 90 parts by weight or less of diene-based synthetic rubber such as polybutadiene rubber or polystyrene butadiene rubber. In some cases, 10 to 30 parts by weight of a hydrophilic inorganic reinforcing agent such as white carbon or silane-modified clay may be added, and other materials commonly used in the rubber processing industry may also be added. It may be added in a regular amount. For example, for 100 parts by weight of blended rubber, 2 to 6 parts of zinc oxide
Parts by weight, 1 to 3 parts by weight of stearic acid, 2 parts by weight of process oil
0 to 50 parts by weight, 1.5 to 3.5 parts by weight of sulfur, 0.5 to 2.5 parts by weight of vulcanization accelerator, 1 to 3 parts by weight of each anti-aging agent and wax, and pigments, dyes, and adhesives. Usual doses of modifiers and the like can be mentioned.
このようにして得られたトレッドゴムにナイロン樹脂を
配合し、バンバリーミキサ−やロールなどを用いて混練
することにより、本発明のスタッドレスタイヤ用トレッ
ドゴム組成物とすることができる。The tread rubber composition for studless tires of the present invention can be obtained by blending a nylon resin with the tread rubber thus obtained and kneading it using a Banbury mixer, rolls, or the like.
（作 用）
本発明によると、トレッドゴム成分に、特定の粒子径の
ナイロン樹脂を特定量配合することにより、加工性を損
なわずに、耐摩耗性の低下を実用上許容な範囲に止め、
氷上における摩擦係数を向上させたトレンドゴムを得る
ことができ、スタッドレスタイヤに適用できる。(Function) According to the present invention, by blending a specific amount of nylon resin with a specific particle size into the tread rubber component, the decrease in wear resistance is kept within a practically acceptable range without impairing processability.
It is possible to obtain a trendy rubber with improved coefficient of friction on ice, which can be applied to studless tires.
（実施例）
次に実施例を挙げて本発明を説明するが、実施例中の部
ば重量部を示すものとする。(Example) Next, the present invention will be explained with reference to Examples, where parts in the Examples indicate parts by weight.
実施例１〜３
天然ゴム７０部及びポリブタジェンゴム３０部からなる
ブレンドゴム１００部に対して、平均粒子径４０μｍを
有するナイロン樹脂３〜２０部及びその他の添加剤を配
合し、下記第１表の本発明実施例１〜３のトレッドゴム
組成物を得た。Examples 1 to 3 100 parts of blended rubber consisting of 70 parts of natural rubber and 30 parts of polybutadiene rubber were blended with 3 to 20 parts of nylon resin having an average particle size of 40 μm and other additives, and the following Tread rubber compositions of Examples 1 to 3 of the present invention shown in the table were obtained.
比較例１〜３
前記ブレンドゴム１００部に対して、平均粒子径１５〜
２００μｍを有するナイロン樹脂１０〜３０部及びその
他の添加剤を配合し、同表比較例１〜３のトレッドゴム
組成物を得た。Comparative Examples 1 to 3 Average particle size 15 to 100 parts of the blended rubber
10 to 30 parts of a nylon resin having a diameter of 200 μm and other additives were blended to obtain tread rubber compositions of Comparative Examples 1 to 3 in the same table.
尚、本実施例及び比較例で使用したナイロン樹脂は６−
ナイロンである。The nylon resin used in this example and comparative example was 6-
It is nylon.
各組成物をバンバリーミキサ−及びロールで混練りし、
この未加硫ゴムをプレス加硫（条件：１５０°Ｃで３０
分間）して各試料を作成した。Knead each composition with a Banbury mixer and rolls,
This unvulcanized rubber is press vulcanized (conditions: 30°C at 150°C).
each sample was prepared by
またナイロン樹脂を添加しない外は上記と全く同しブレ
ンドゴム及び添加剤を配合して参考例のトレッドゴム組
成物とし、これをプレス加硫して試料を作成した。Further, a tread rubber composition of a reference example was prepared by blending the same blended rubber and additives as above except that nylon resin was not added, and this was press-vulcanized to prepare a sample.
各トレッドゴム組成物を第１表に示す。Each tread rubber composition is shown in Table 1.
次 葉 第 表 （注）】 ２゜ 硬度、引張強度はＪＩＳ Ｘ６３０１による。Next Leaf No. table (note)】 2゜ Hardness and tensile strength are based on JIS X6301.
摩耗指数はＡＳＴＭ ［１２２２８のピコ摩耗指数で、
数値が大きいほどｉ＋摩耗性に優れる。The wear index is the pico wear index of ASTM [12228,
The larger the value, the better the i+ abrasion resistance.
氷」二摩擦はポータプルスキッドテスターを用いて、１
０℃の氷上でテストし、水上摩擦指数で表示した。数値
が大きいほど摩擦係数が大きい。Ice” 2 friction using a portable skid tester, 1
Tested on ice at 0°C and expressed as water friction index. The larger the number, the larger the friction coefficient.
加工性の評価 ○：良い、△：や−良い、×：悪い第
１表記載の各トレンドゴム組成物について、加工性とプ
レス加硫して得られた各試料の物性を第２表に示す。Evaluation of processability ○: Good, △: Fairly good, ×: Bad For each trend rubber composition listed in Table 1, the processability and physical properties of each sample obtained by press vulcanization are shown in Table 2. .
次
葉
（発明の効果）
第１表及び第２表から明らかなように、特定粒子径のナ
イロン樹脂を特定量添加した本発明のトレッドゴム組成
物を用いれば、加工性が良好で、ゴム加工品の引張強度
及び耐摩耗性を大して損うことなく、氷上における摩擦
係数を大幅に向上させることができる。Next page (Effects of the invention) As is clear from Tables 1 and 2, if the tread rubber composition of the present invention containing a specific amount of nylon resin with a specific particle size is used, the processability is good and rubber processing is possible. The coefficient of friction on ice can be significantly improved without significantly impairing the tensile strength and abrasion resistance of the product.
Claims (1)
ッドゴム成分において、該ゴム成分１００重量部に対し
、平均粒子径２０〜１５０μｍを有するナイロン樹脂３
〜２０重量部が配合されてなることを特徴とするスタッ
ドレスタイヤ用トレッドゴム組成物。(1) In a tread rubber component mainly composed of natural rubber and diene-based synthetic rubber, nylon resin 3 having an average particle diameter of 20 to 150 μm per 100 parts by weight of the rubber component
A tread rubber composition for studless tires, characterized in that the composition contains up to 20 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2150262A JPH0441535A (en) | 1990-06-08 | 1990-06-08 | Tread rubber composition for studless tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2150262A JPH0441535A (en) | 1990-06-08 | 1990-06-08 | Tread rubber composition for studless tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0441535A true JPH0441535A (en) | 1992-02-12 |
Family
ID=15493097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2150262A Pending JPH0441535A (en) | 1990-06-08 | 1990-06-08 | Tread rubber composition for studless tire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441535A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010059250A (en) * | 2008-09-01 | 2010-03-18 | Sumitomo Rubber Ind Ltd | Studless tire for truck-bus or for light truck |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4966728A (en) * | 1972-10-24 | 1974-06-28 | ||
| JPS638441A (en) * | 1986-06-28 | 1988-01-14 | Kyushu Shinko Rubber Kk | Production of anti-slip rubber material |
| JPH0291137A (en) * | 1988-09-29 | 1990-03-30 | Yachiyo Micro Sci Kk | Rubbery elastomer composition with excellent non-slip properties |
| JPH02107628A (en) * | 1988-09-09 | 1990-04-19 | Goodyear Tire & Rubber Co:The | High-modulus rubber composition |
-
1990
- 1990-06-08 JP JP2150262A patent/JPH0441535A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4966728A (en) * | 1972-10-24 | 1974-06-28 | ||
| JPS638441A (en) * | 1986-06-28 | 1988-01-14 | Kyushu Shinko Rubber Kk | Production of anti-slip rubber material |
| JPH02107628A (en) * | 1988-09-09 | 1990-04-19 | Goodyear Tire & Rubber Co:The | High-modulus rubber composition |
| JPH0291137A (en) * | 1988-09-29 | 1990-03-30 | Yachiyo Micro Sci Kk | Rubbery elastomer composition with excellent non-slip properties |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010059250A (en) * | 2008-09-01 | 2010-03-18 | Sumitomo Rubber Ind Ltd | Studless tire for truck-bus or for light truck |
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