JPH03265636A - Rubber composition - Google Patents

Rubber composition

Info

Publication number
JPH03265636A
JPH03265636A JP6262290A JP6262290A JPH03265636A JP H03265636 A JPH03265636 A JP H03265636A JP 6262290 A JP6262290 A JP 6262290A JP 6262290 A JP6262290 A JP 6262290A JP H03265636 A JPH03265636 A JP H03265636A
Authority
JP
Japan
Prior art keywords
water
soluble inorganic
compound
rubber composition
inorganic compound
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
Application number
JP6262290A
Other languages
Japanese (ja)
Inventor
Shinji Kawakami
伸二 河上
Shingo Midorikawa
真吾 緑川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP6262290A priority Critical patent/JPH03265636A/en
Publication of JPH03265636A publication Critical patent/JPH03265636A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a rubber composition improved in frictional performances on ice without detriment to its abrasion resistance by mixing a rubber composition with a water-soluble inorganic compound and keeping the particles of the compound out of contact with each other. CONSTITUTION:A rubber composition which contains a water-soluble inorganic compound and in which the particles of the compound are kept out of contact with each other. The water-soluble inorganic compound used is one having such a water solubility at 0 deg.C that at least 1g of this compound can exist in 100g of a saturated solution at 0 deg.C. It is desirable that common salt based on sodium chloride is used as the water-soluble inorganic compound because it is easily available and is inexpensive. To disperse separately the individual particles of the water-soluble inorganic compound, it is suitable to add the compound to the rubber composition by taking account of the particle diameter and amount of the compound added and to knead the mixture. It is preferable, for example, to decrease the amount of addition when this diameter is large and to increase it when this diameter is small.

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ゴム組成物に関す
る。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rubber composition with improved friction performance on ice.

〔従来の技術〕[Conventional technology]

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、歩行や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 walking or driving.

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。
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.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

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しに氷上摩擦性
能を向上させたゴム組成物を提供することを目的とする
The present invention was conceived in view of these circumstances, and an object of the present invention is to provide a rubber composition that has improved friction performance on ice without substantially impairing wear resistance.

〔課題を解決するための手段〕[Means to solve the problem]

本発明のゴム組成物は、水溶性無機化合物を含有してお
り、その粒子同士が実質的に互いに接触していないこと
を特徴とする。
The rubber composition of the present invention contains a water-soluble inorganic compound, and is characterized in that its particles 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ため、本
発明のゴム組成物で例えばタイヤのトレッド部を構成し
た場合、凍結した路面の走行時にトレンド表面の水溶性
無機化合物が路面の水に溶は出してトレンド表面に凹凸
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。
In this way, in the present invention, since the particles contain a water-soluble inorganic compound in a state in which they are not substantially in contact with each other, when the rubber composition of the present invention is used to form, for example, the tread portion of a tire, it can be used on frozen road surfaces. When driving, the water-soluble inorganic compounds on the trend surface dissolve into the water on the road surface, forming irregularities on the trend surface, which can improve 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.

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.

本発明で用いる水溶性無機化合物は、“0℃の飽和溶液
100g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。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、硫酸合歓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、人手し易く、安価だからである。
The water-soluble inorganic compound used in the present invention has a solubility in water at 0°C such that 1g or more is present in 100g of a saturated solution at 0°C. These water-soluble inorganic compounds include, for example, 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 sulfuric acid. Among these, it is preferable to use sodium chloride, particularly common salt containing sodium chloride as a main component. This is because table salt is easy to produce and inexpensive.

本発明のゴム組成物は、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
ヤのトレンド部を構成して凍′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し、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 of 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, the rubber composition will form the trend part of the tire, and when the tire is driven on an icy road surface, the inside of the tread part will be damaged. This is because even the water-soluble inorganic compounds in the tread are leached out, forming 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、混練
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−程度である。
In order to substantially independently disperse individual particles of a water-soluble inorganic compound, the water-soluble inorganic compound is blended into a rubber composition, taking into consideration the particle size and blending amount of the water-soluble inorganic compound, and kneaded. 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
It is about 5 to 2000μ.

また、本発明のゴムMi底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、カーボンブラックなどの配合剤を他に
適宜含有する。
In addition, the rubber constituting the rubber Mi sole of the present invention includes:
There are no particular limitations, such as natural rubber, synthetic polyisoprene rubber, polybutadiene rubber, styrene rubber, etc.
Diene rubber such as butadiene copolymer rubber. This rubber composition appropriately contains other compounding agents such as carbon black.

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、B、
C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。こ
の結果を第1表に示す。
Examples Rubber compositions A, B,
C was prepared, and the friction coefficient on ice of these rubber compositions was measured by the method described below to evaluate the friction performance on ice. The 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。
Measurements were performed using ASTHE-303. The road surface is -5
A water basin set at ℃ was used. The obtained coefficient of friction on ice was expressed as an index with the case of rubber composition A set as 100.

数値が大きい方が氷上摩擦係数が高いことを表わす。A larger number indicates a higher coefficient of friction on ice.

30二に 注) 傘1 : N−(1,3−ジメチル)゛チル)−N゛−
フェニルーP−フェニレンジアミン。
Note on 302) Umbrella 1: N-(1,3-dimethyl)ethyl)-N-
Phenyl-P-phenylenediamine.

*2:N−シクロヘキシル−2−ペンジチアゾリルスル
ヘンアミド。
*2: N-cyclohexyl-2-pendithiazolylsulfenamide.

日本たばこ産業■製の「キッチンソ ルト」(商品名)、主成分は塩化ナト リウム(99%以上)、平均粒径400μm比重2.1
61゜ 本3 : ベルト、 靴底などのゴム材料として好適である。
"Kitchen Salt" (product name) manufactured by Japan Tobacco Inc., main ingredient is sodium chloride (99% or more), average particle size 400 μm, specific gravity 2.1
61° book 3: Suitable as a rubber material for belts, shoe soles, etc.

Claims (1)

【特許請求の範囲】[Claims] 水溶性無機化合物を含有しており、その粒子同士が実質
的に互いに接触していないことを特徴とするゴム組成物
A rubber composition containing a water-soluble inorganic compound, the particles of which are substantially not in contact with each other.
JP6262290A 1990-03-15 1990-03-15 Rubber composition Pending JPH03265636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6262290A JPH03265636A (en) 1990-03-15 1990-03-15 Rubber composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6262290A JPH03265636A (en) 1990-03-15 1990-03-15 Rubber composition

Publications (1)

Publication Number Publication Date
JPH03265636A true JPH03265636A (en) 1991-11-26

Family

ID=13205604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6262290A Pending JPH03265636A (en) 1990-03-15 1990-03-15 Rubber composition

Country Status (1)

Country Link
JP (1) JPH03265636A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002211203A (en) * 2001-01-19 2002-07-31 Sumitomo Rubber Ind Ltd Studless tire
JP2007091853A (en) * 2005-09-28 2007-04-12 Kinjo Rubber Co Ltd Swelling material
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
JP2013514399A (en) * 2009-12-18 2013-04-25 コンパニー ゼネラール デ エタブリッスマン ミシュラン Winter tires with improved grip on ice
JP2013517356A (en) * 2010-01-18 2013-05-16 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 snow tire tread
WO2022085180A1 (en) * 2020-10-23 2022-04-28 株式会社アシックス Anti-slip member for wearable article or sports article, wearable article, and sports article

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002211203A (en) * 2001-01-19 2002-07-31 Sumitomo Rubber Ind Ltd Studless tire
JP2007091853A (en) * 2005-09-28 2007-04-12 Kinjo Rubber Co Ltd Swelling material
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
JP2013514399A (en) * 2009-12-18 2013-04-25 コンパニー ゼネラール デ エタブリッスマン ミシュラン Winter tires with improved grip on ice
JP2013517356A (en) * 2010-01-18 2013-05-16 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 snow tire tread
WO2022085180A1 (en) * 2020-10-23 2022-04-28 株式会社アシックス Anti-slip member for wearable article or sports article, wearable article, and sports article

Similar Documents

Publication Publication Date Title
EP0678549B1 (en) Rubber composition for tyre tread
JP3406105B2 (en) Pneumatic tire
JPH03159803A (en) Studless tire
JPH03265636A (en) Rubber composition
KR890000745B1 (en) Tubber composition for tire treads
JPH03295704A (en) Rneumatic tire
FR2453876A1 (en) RUBBER MIXTURES FOR TREADS WITH LOW ROLLING RESISTANCE
JPH03266706A (en) Pneumatic tire
JPH08311245A (en) Tire tread rubber composition
JPH1160816A (en) Rubber composition for tire tread
JPH05269884A (en) Tread rubber composition for studless tire
JPH11323024A (en) Tread rubber composition for studless tire
JPH03266704A (en) Pneumatic tire
JPH0680786A (en) Production of rubber composition for tire tread
JPH01167348A (en) Tire having excellent performance on ice
JPH01174546A (en) Tire for studless use
JPH02208337A (en) Pneumatic tire
JPH0455443A (en) Tread rubber composition for studless tire
JPS59126443A (en) Tread rubber composition for snow tire
JPH05154005A (en) Rubber composition for wear sole
JP3479399B2 (en) Rubber composition for tire tread
JPS56163907A (en) Composition of tyre tread rubber
JPH01174547A (en) Radial tire
JP2670678B2 (en) Rubber composition for tire tread having two-peak tan δ
JPH0220406A (en) Radial tire of cap-base construction