JP2003105136A - Rubber composition for belt of belt conveyor, belt and belt conveyor - Google Patents
Rubber composition for belt of belt conveyor, belt and belt conveyorInfo
- Publication number
- JP2003105136A JP2003105136A JP2001300856A JP2001300856A JP2003105136A JP 2003105136 A JP2003105136 A JP 2003105136A JP 2001300856 A JP2001300856 A JP 2001300856A JP 2001300856 A JP2001300856 A JP 2001300856A JP 2003105136 A JP2003105136 A JP 2003105136A
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- Japan
- Prior art keywords
- belt
- rubber
- rubber composition
- belt conveyor
- weight
- 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.)
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Links
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- Polymerization Catalysts (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Belt Conveyors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ベルトコンベアの
ベルト用ゴム組成物、その組成物を用いたベルト及びそ
のベルトを装着したベルトコンベアに関し、さらに詳し
くは、上面カバーゴム、補強材及び下面カバーゴムから
なるベルトコンベアのベルトの上面カバーゴム用とし
て、特に耐摩耗性を向上させたベルトコンベアのベルト
用ゴム組成物、その組成物を用いたベルト及びそのベル
トを装着したベルトコンベアに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber composition for a belt of a belt conveyor, a belt using the composition and a belt conveyor equipped with the belt, and more specifically, a top cover rubber, a reinforcing material and a bottom cover. A rubber composition for a belt of an upper surface of a belt of a belt conveyor made of rubber, particularly a rubber composition for a belt conveyor having improved abrasion resistance, a belt using the composition, and a belt conveyor equipped with the belt. .
【０００２】[0002]
【従来の技術】ベルトコンベアは、物品を輸送する手段
として極めて有用であり、多くの場所において使用され
ている。このベルトコンベアのベルトは、通常、上面カ
バーゴム、補強材及び下面カバーゴムからなっている
が、特に上面カバーゴムは搭載された被輸送物との摩擦
によって摩耗し易く、ベルト全体の寿命を支配すること
となるため、当該ゴムの耐摩耗寿命を向上させる必要が
ある。従来は、各種のポリマーやカーボンをゴムに配合
することにより、耐摩耗寿命の向上を図っていたが、十
分なる向上は得られていなかった。本発明は、このコン
ベアベルトの上面カバーゴムとして使用するのに適し
た、耐摩耗寿命を向上させたベルトコンベアのベルト用
ゴム組成物、その組成物を用いたベルト及びそのベルト
を装着したベルトコンベアを提供することを目的として
いる。Belt conveyors are extremely useful as a means of transporting articles and are used in many places. The belt of this belt conveyor is usually composed of an upper surface cover rubber, a reinforcing material and a lower surface cover rubber. Especially, the upper surface cover rubber is apt to be worn due to friction with an object to be transported and controls the life of the entire belt. Therefore, it is necessary to improve the wear resistance life of the rubber. Conventionally, the abrasion resistance life has been improved by blending various polymers and carbon with rubber, but the sufficient improvement has not been obtained. The present invention is suitable for use as a top cover rubber of this conveyor belt, a rubber composition for a belt of a belt conveyor having improved wear resistance life, a belt using the composition, and a belt conveyor equipped with the belt. Is intended to provide.
【０００３】[0003]
【課題を解決するための手段】本発明者らは鋭意研究を
重ねた結果、ゴム成分として、ネオジウム系触媒により
合成したポリブタジエンゴムを含むゴム組成物により、
上記課題が解決され、耐摩耗寿命を向上させたベルトコ
ンベアのベルト用ゴム組成物が得られることを見出し、
本発明に到達した。Means for Solving the Problems As a result of intensive studies by the present inventors, a rubber composition containing a polybutadiene rubber synthesized by a neodymium-based catalyst as a rubber component,
The above problem is solved, and it is found that a belt rubber composition for a belt conveyor having improved wear resistance life can be obtained.
The present invention has been reached.
【０００４】[0004]
【発明の実施の形態】本発明のゴム組成物におけるゴム
成分としては、ネオジウム系触媒により合成したポリブ
タジエンゴム（以下「Ｎｄ−ＢＲ」という。）を含むこ
とを必須とする。その含有量としては、本発明の効果を
奏する範囲であれば、特に制限はないが、通常はゴム成
分全体を１００重量部としたときに、１〜９５重量部、
好ましくは５〜８５重量部の範囲である。BEST MODE FOR CARRYING OUT THE INVENTION As a rubber component in the rubber composition of the present invention, it is essential to include a polybutadiene rubber synthesized by a neodymium catalyst (hereinafter referred to as "Nd-BR"). The content thereof is not particularly limited as long as the effects of the present invention are exhibited, but usually 1 to 95 parts by weight when 100 parts by weight of the entire rubber component is used,
It is preferably in the range of 5 to 85 parts by weight.
【０００５】前記ネオジウム系触媒としては、種々のも
のがあるが、ネオジウムを含む化合物又はこれらとルイ
ス塩基との反応物等を使用し得る。具体的には、ネオジ
ウムのカルボン酸塩、リン酸塩、亜リン酸塩、アルコキ
シド等が好適である。また、助触媒としてアルミノキサ
ンを用いることが好ましく、特にメチルアルミノキサン
が好適である。There are various neodymium-based catalysts, and a compound containing neodymium or a reaction product of these with a Lewis base can be used. Specifically, neodymium carboxylate, phosphate, phosphite, alkoxide and the like are preferable. Further, it is preferable to use aluminoxane as a cocatalyst, and methylaluminoxane is particularly preferable.
【０００６】また、ブタジエンゴムの二重結合部分の構
造にはシス体とトランス体があるが、本発明におけるＮ
ｄ−ＢＲはシス体が８０％以上であることが好ましく、
さらには９０％以上であることが好ましい。シス体が８
０％未満であると耐摩耗性に劣る場合があるからであ
る。The structure of the double bond portion of butadiene rubber has a cis form and a trans form.
The cis isomer of d-BR is preferably 80% or more,
Further, it is preferably 90% or more. 8 cis
This is because if it is less than 0%, the wear resistance may be poor.
【０００７】さらに本発明におけるＮｄ−ＢＲは、末端
変性がなされていることが好ましい。Ｎｄ−ＢＲの末端
変性方法としては、変性剤を使用してＮｄ−ＢＲの活性
末端を変性する方法を用いることができる。変性剤とし
ては、例えば、四塩化スズ及び四臭化スズ等のハロゲン
化スズ、トリブチルスズクロライド等のハロゲン化有機
スズ化合物、四塩化ケイ素及びクロロトリエチルシラン
等のケイ素化合物、フェニルイソシアネート等のイソシ
アネート基含有化合物、アミド化合物、ラクタム化合
物、尿素化合物並びにイソシアヌル酸誘導体等が挙げら
れる。この中で特にスズ系化合物を用いて末端変性をす
ることが好ましい。また、本発明で用いる末端変性Ｎｄ
−ＢＲは、分子量に関しては特に制限されない。Further, the Nd-BR in the present invention is preferably end-modified. As a method for modifying the terminal of Nd-BR, a method of modifying the active terminal of Nd-BR using a modifying agent can be used. Examples of the modifier include tin halides such as tin tetrachloride and tin tetrabromide, organotin compounds such as tributyltin chloride, silicon compounds such as silicon tetrachloride and chlorotriethylsilane, and isocyanate group containing phenyl isocyanate. Examples thereof include compounds, amide compounds, lactam compounds, urea compounds and isocyanuric acid derivatives. Of these, it is particularly preferable to use a tin compound for terminal modification. Further, the terminal-modified Nd used in the present invention
-BR is not particularly limited in terms of molecular weight.
【０００８】本発明におけるゴム成分としては、Ｎｄ−
ＢＲの他に種々のゴム成分を含むことができ、天然ゴム
（ＮＲ）や種々の合成ゴムが用いられる。合成ゴムとし
ては、例えば、イソプレンゴム、スチレン・ブタジエン
ゴム（ＳＢＲ）、ブチルゴム、ハロゲン化ブチルゴムが
好ましく、さらに臭素化ブチルゴム、パラメチルスチレ
ン基を有するブチルゴム（具体的にはイソブチレンとｐ
−ハロゲン化メチルスチレンとの共重合体等）、エチレ
ン・プロピレン・ジエンゴム（ＥＰＤＭ）なども好適な
ものとして挙げることができる。本発明におけるゴム成
分は、ベルトコンベアのベルトという用途に応じて、天
然ゴム及び上記合成ゴムの中から、適宜一種又は二種以
上選択して用いられる。The rubber component in the present invention is Nd-
Various rubber components can be contained in addition to BR, and natural rubber (NR) and various synthetic rubbers are used. As the synthetic rubber, for example, isoprene rubber, styrene-butadiene rubber (SBR), butyl rubber and halogenated butyl rubber are preferable, and brominated butyl rubber and butyl rubber having a paramethylstyrene group (specifically, isobutylene and p
-Halogenated methylstyrene copolymers, etc.), ethylene / propylene / diene rubber (EPDM) and the like can also be mentioned as preferable examples. The rubber component in the present invention is used by appropriately selecting one or two or more kinds from natural rubber and the above synthetic rubber according to the use as a belt of a belt conveyor.
【０００９】また、本発明においては、摩擦を軽減する
ための摩擦軽減剤を添加することができる。ゴム組成物
における摩擦軽減剤とは、ゴムに配合することにより、
加硫後のゴムの表面に析出させ、被輸送物との摩擦を小
さくする物質を意味するが、本発明のゴム組成物におい
ては、酸アミド及び／又はシリコーンオイルからなる摩
擦軽減剤が特に好適である。酸アミドとしては高級脂肪
酸のモノアミド型、例えばオキシステアロアミド、エル
シルアミド、メチロールアミド、ラウリルアミド、パル
ミチルアミド、ペヘンアミド、ステアリン酸アミド（ス
テアロアミド）、オレイン酸アミド（オレイルアミ
ド）、高級脂肪酸のビスアミド型、例えばメチレンピス
ステアロアミド、エチレンビスステアロアミド、エチレ
ンピスオレイルアミド、エチレンピスラウリルアミド、
複合型アミド、例えばステアリルオレイルアミド、Ｎ−
ステアリルエルクアミド、Ｎ−オレイルパルミトアミド
及び特殊樹脂酸アミドなどの飽和又は不飽和脂肪酸のア
ミドが適当である。シリコーンオイルとしてはポリアル
キルシロキサン特にボリジメチルシロキサンとその変性
品及びポリメチルフェニルシロキサンとその変性品が好
適である。Further, in the present invention, a friction reducing agent for reducing friction can be added. The friction reducing agent in the rubber composition, by blending with the rubber,
It means a substance that is deposited on the surface of the rubber after vulcanization to reduce friction with the material to be transported, but in the rubber composition of the present invention, a friction modifier composed of acid amide and / or silicone oil is particularly preferable. Is. As the acid amide, higher fatty acid monoamide type, for example, oxystearoamide, erucylamide, methylolamide, laurylamide, palmitylamide, pehenamide, stearic acid amide (stearoamide), oleic acid amide (oleylamide), higher fatty acid bisamide type , For example, methylenepistearoamide, ethylenebisstearoamide, ethylenepisoleylamide, ethylenepislaurylamide,
Complex type amides such as stearyl oleyl amide, N-
Suitable amides of saturated or unsaturated fatty acids such as stearyl erucamide, N-oleyl palmitoamide and special resin acid amides. As the silicone oil, polyalkylsiloxane, particularly polydimethylsiloxane and its modified product, and polymethylphenylsiloxane and its modified product are preferable.
【００１０】摩擦軽減剤の配合量は、その種類や求める
耐摩耗性能により異なり一概には決められないが、通常
ゴム成分１００重量部当たり０．１〜１５重量部、好ま
しくは０．５〜５重量部の範囲で使用する。これらの範
囲未満では摩耗低減の効果が得られない場合があり、ま
たこの範囲を超えると、工場加工性（成形性）に問題が
発生する可能性がある。The blending amount of the friction reducing agent varies depending on the type and the desired wear resistance performance and cannot be determined unconditionally, but is usually 0.1 to 15 parts by weight, preferably 0.5 to 5 parts by weight per 100 parts by weight of the rubber component. Used in the range of parts by weight. If it is less than these ranges, the effect of reducing wear may not be obtained in some cases, and if it exceeds this range, there may occur a problem in factory workability (formability).
【００１１】また、本発明のゴム組成物には、通常硫黄
が含有される。この硫黄の含有量は、ゴム成分１００重
量部当たり、０．３〜５重量部の範囲が好ましい。この
含有量が０．３重量部未満では十分な加硫効果が得られ
ず、目標性能を達成できなくなる場合がある。また５重
量部を超えると、ゴムがもろくなり、ゴムの疲労性能が
低下するなど好ましくない場合がある。Further, the rubber composition of the present invention usually contains sulfur. The sulfur content is preferably in the range of 0.3 to 5 parts by weight per 100 parts by weight of the rubber component. If this content is less than 0.3 parts by weight, a sufficient vulcanization effect cannot be obtained, and the target performance may not be achieved. Further, if it exceeds 5 parts by weight, the rubber becomes brittle and the fatigue performance of the rubber is deteriorated, which is not preferable in some cases.
【００１２】さらに、本発明のゴム組成物には、前記各
成分以外に、ゴム業界で通常使用される配合剤を通常の
配合量で適宜配合することができる。具体的には、カー
ボンブラックやシリカ等の充填剤、アロマオイル等の軟
化剤、ジフェニルグアニジン等のグアニジン類、メルカ
プトベンゾチアゾール等のチアゾール類、Ｎ，Ｎ’−ジ
シクロヘキシル−２−ベンゾチアゾリルスルフェンアミ
ド等のスルフェンアミド類、テトラメチルチウラムジス
ルフィド等のチウラム類などの加硫促進剤、酸化亜鉛等
の加硫促進助剤、ポリ（２，２，４−トリメチル−１，
２−ジヒドロキノリン）、フェニル−α−ナフチルアミ
ン等のアミン類などの老化防止剤等である。Furthermore, in the rubber composition of the present invention, in addition to the above-mentioned respective components, compounding agents usually used in the rubber industry can be properly compounded in a usual compounding amount. Specifically, fillers such as carbon black and silica, softeners such as aroma oil, guanidines such as diphenylguanidine, thiazoles such as mercaptobenzothiazole, N, N'-dicyclohexyl-2-benzothiazolyl sulfene. Sulfenamides such as amides, vulcanization accelerators such as thiurams such as tetramethylthiuram disulfide, vulcanization accelerators such as zinc oxide, poly (2,2,4-trimethyl-1,
2-dihydroquinoline), amines such as phenyl-α-naphthylamine, and the like.
【００１３】本発明のゴム組成物は、開放混合式の練り
ロール機や密閉式混合機のバンバリーミキサー等の混練
機を用いて混練りすることにより得ることができる。そ
して、得られたゴム組成物をカレンダーや押出し機など
でシート状に成形し、補強材である帆布又はスチールコ
ードを芯材として、これを覆うようにシート状ゴム成形
物を貼り合わせ、その後、加硫を行うことによりベルト
を得ることができる。The rubber composition of the present invention can be obtained by kneading using a kneading machine such as an open mixing type kneading roll machine or a Banbury mixer of a closed type mixing machine. Then, the obtained rubber composition is molded into a sheet with a calendar, an extruder, or the like, a canvas or steel cord as a reinforcing material is used as a core material, and a sheet-shaped rubber molded product is attached so as to cover it, and then, A belt can be obtained by performing vulcanization.
【００１４】前記したように、ベルトコンベアのベルト
は、通常上面カバーゴム、補強材及び下面カバーゴムか
らなっており、被輸送物と接触するのは上面カバーゴム
である。本発明のベルトコンベア用ベルトは、上面カバ
ーゴム、補強材及び下面カバーゴムからなるベルトの、
上面カバーゴムに本発明のゴム組成物を使用したもので
ある。補強材及び下面カバーゴムは、この種のベルト用
として従来から知られていたものが使用し得るが、無
論、下面カバーゴムに本発明のゴム組成物を使用して
も、一向に差し支えない。本発明のベルトコンベアのベ
ルトは、従来公知のベルトコンベアの何れにも使用可能
である。すなわち、本発明のベルトを、従来公知のベル
トコンベア用ベルトに代えて装着したベルトコンベアで
あり、かかるベルトコンベアをも本発明は提供するもの
である。As described above, the belt of the belt conveyor is usually composed of the upper cover rubber, the reinforcing material and the lower cover rubber, and the upper cover rubber is in contact with the transported object. The belt conveyor belt of the present invention is a belt composed of an upper surface cover rubber, a reinforcing material and a lower surface cover rubber,
The rubber composition of the present invention is used for the upper cover rubber. As the reinforcing material and the lower surface cover rubber, those conventionally known for this type of belt can be used, but it goes without saying that the rubber composition of the present invention can be used for the lower surface cover rubber. The belt of the belt conveyor of the present invention can be used for any conventionally known belt conveyor. That is, the belt of the present invention is a belt conveyor that is mounted in place of a conventionally known belt for a belt conveyor, and the present invention also provides such a belt conveyor.
【００１５】[0015]
【実施例】次に、本発明を実施例により、さらに詳しく
説明するが、本発明は、これらの例によってなんら限定
されるものではない。
（ＤＩＮ摩耗）ＤＩＮ摩耗試験機を用いて耐摩耗試験を
行った。耐摩耗試験は室温で行い、コントロールに対す
る指数で表わした。
（加工性）
ロール作業性で評価した。評価は以下に示す３段階で行
った。
○；作業性良好
△；作業困難
×；作業不可EXAMPLES Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. (DIN abrasion) An abrasion resistance test was conducted using a DIN abrasion tester. The abrasion resistance test was conducted at room temperature and expressed as an index with respect to the control. (Workability) Roll workability was evaluated. The evaluation was performed in the following three stages. ○: Good workability △: Difficult work ×: Unworkable
【００１６】実施例１
天然ゴム８０重量％、Ｎｄ−ＢＲ（ジェイエスアール
（株）製、主触媒：ネオジウム成分、助触媒：メチルア
ルミノキサン）２０重量％からなるゴム成分１００重量
部に対し、カーボンブラック〔東海カーボン社製「ＩＳ
ＡＦ」〕５０重量部、ステアリン酸２重量部、亜鉛華４
重量部、ワックス２重量部、老化防止剤２，２，４−ト
リメチル−１，２−ジヒドロキノリン重合体〔精工
（株）製、商品名：ノンフレックスＲＤ〕１重量部、老
化防止剤（６Ｃ）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〔大内新興化
学工業（株）製、商品名：ノクラック６Ｃ〕１．５重量
部、アロマ油５重量部、硫黄２重量部及び加硫促進剤Ｎ
−ｔｅｒｔブチル−２−ベンゾチアジル−１−スルフェ
ンアミド〔大内新興化学工業社製、商品名：ノクセラー
ＮＳ〕０．５４重量部を配合し、ゴム組成物を調製し、
ＤＩＮ摩耗、加工性の評価を行った。その結果を第１表
に示す。Example 1 Carbon black was added to 100 parts by weight of a rubber component consisting of 80% by weight of natural rubber and 20% by weight of Nd-BR (manufactured by JSR Corporation, main catalyst: neodymium component, cocatalyst: methylaluminoxane). [IS manufactured by Tokai Carbon Co., Ltd.
AF "] 50 parts by weight, stearic acid 2 parts by weight, zinc flower 4
Parts by weight, wax 2 parts by weight, antiaging agent 2,2,4-trimethyl-1,2-dihydroquinoline polymer [manufactured by Seiko Co., Ltd., trade name: Nonflex RD] 1 part by weight, antiaging agent (6C ) N- (1,3-dimethylbutyl)-
1.5 parts by weight of N'-phenyl-p-phenylenediamine (manufactured by Ouchi Shinko Chemical Industry Co., Ltd., Nocrac 6C), 5 parts by weight of aroma oil, 2 parts by weight of sulfur and vulcanization accelerator N
0.54 parts by weight of -tert-butyl-2-benzothiazyl-1-sulfenamide [manufactured by Ouchi Shinko Kagaku Kogyo Co., Ltd., trade name: NOXCELLER NS] was mixed to prepare a rubber composition,
DIN wear and workability were evaluated. The results are shown in Table 1.
【００１７】実施例２〜４
第１表に示す量のＮｄ−ＢＲを配合したこと以外は実施
例１と同様にゴム組成物を調製し、ＤＩＮ摩耗、加工性
の評価を行った。その結果を第１表に示す。Examples 2 to 4 A rubber composition was prepared in the same manner as in Example 1 except that the amounts of Nd-BR shown in Table 1 were blended, and DIN abrasion and workability were evaluated. The results are shown in Table 1.
【００１８】実施例５及び実施例６
第１表に示す種類と量のＮｄ−ＢＲを配合したこと以外
は実施例１と同様にゴム組成物を調製し、ＤＩＮ摩耗、
加工性の評価を行った。その結果を第１表に示す。Example 5 and Example 6 A rubber composition was prepared in the same manner as in Example 1 except that the types and amounts of Nd-BR shown in Table 1 were blended, and DIN abrasion,
The workability was evaluated. The results are shown in Table 1.
【００１９】比較例１〜４
第１表に示す量のコバルト系触媒を使用して合成したブ
タジエンゴムを配合したこと以外は実施例１と同様にゴ
ム組成物を調製し、ＤＩＮ摩耗、加工性の評価を行っ
た。その結果を第１表に示す。Comparative Examples 1 to 4 A rubber composition was prepared in the same manner as in Example 1 except that a butadiene rubber synthesized by using a cobalt-based catalyst in an amount shown in Table 1 was blended, and DIN abrasion and processability were prepared. Was evaluated. The results are shown in Table 1.
【００２０】[0020]
【表１】 [Table 1]
【００２１】＊１ ジェイエスアール（株）社製、主触
媒：ネオジウム成分、助触媒：メチルアルミノキサン、
スズ系化合物で末端変性
＊２ エニケム社製、商品名「ＢＲ４０」
＊３ バイエル社製、商品名「ＣＢ２５」
＊４ ジェイエスアール（株）社製、触媒：Ｃｏ系触媒* 1 manufactured by JSR Co., Ltd., main catalyst: neodymium component, co-catalyst: methylaluminoxane,
Terminal modification with tin-based compound * 2 Enchem Co., trade name "BR40" * 3 Bayer Co., trade name "CB25" * 4 JSR Co., Ltd. catalyst: Co catalyst
【００２２】[0022]
【発明の効果】本発明のベルトコンベアのベルト用ゴム
組成物及びそれを使用したベルトは、耐摩耗性に優れて
おり、該ベルトを装着したベルトコンベアは、摩擦によ
る損傷及び汚れの少ないものである。The rubber composition for a belt of the belt conveyor of the present invention and the belt using the same are excellent in abrasion resistance, and the belt conveyor equipped with the belt has less damage and dirt due to friction. is there.
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） //(Ｃ０８Ｌ 21/00 Ｃ０８Ｌ 9:00 9:00） 15:00 (Ｃ０８Ｌ 21/00 15:00） Ｆターム(参考） 3F024 AA03 AA13 BA07 CA04 CA08 4J002 AC011 AC061 AC081 AC112 BB151 BB181 BB241 FD010 FD070 FD140 FD150 FD170 GM01 4J015 EA02 EA03 EA10 4J100 AS02P BA94H CA01 CA27 CA31 FA08 HB29 HB61 HC50 HC51 HC57 HC63 HC77 HC85 JA28 Front page continuation (51) Int.Cl. 7 Identification code FI theme code (reference) // (C08L 21/00 C08L 9:00 9:00) 15:00 (C08L 21/00 15:00) F term ( Reference) 3F024 AA03 AA13 BA07 CA04 CA08 4J002 AC011 AC061 AC081 AC112 BB151 BB181 BB241 FD010 FD070 FD140 FD150 FD170 GM01 4J015 EA02 EA03 EA10 4J100 AS02P BA94H CA01 HC27 CA31 FA08 HB29 HB61 HC63 HC50 HC51 HC50
Claims (6)
り合成したポリブタジエンゴムを含むことを特徴とする
ベルトコンベアのベルト用ゴム組成物。1. A rubber composition for a belt of a belt conveyor, comprising a polybutadiene rubber synthesized by a neodymium catalyst as a rubber component.
ていることを特徴とする請求項１に記載のベルトコンベ
アのベルト用ゴム組成物。2. The rubber composition for a belt of a belt conveyor according to claim 1, wherein the polybutadiene rubber is end-modified.
により末端変性されていることを特徴とする請求項１又
は２に記載のベルトコンベアのベルト用ゴム組成物。3. The rubber composition for a belt of a belt conveyor according to claim 1, wherein the polybutadiene rubber is end-modified with a tin compound.
０重量部に対して５〜８５重量部含むことを特徴とする
請求項１〜３のいずれかに記載のベルトコンベアのベル
ト用ゴム組成物。4. A rubber component 10 containing the polybutadiene rubber.
The rubber composition for a belt of a belt conveyor according to claim 1, wherein the rubber composition is contained in an amount of 5 to 85 parts by weight with respect to 0 parts by weight.
成物を、上面カバーゴム、補強材及び下面カバーゴムか
らなるベルトの上面カバーゴムとして使用したことを特
徴とするベルトコンベア用ベルト。5. A belt for a belt conveyor, wherein the rubber composition according to any one of claims 1 to 4 is used as an upper cover rubber of a belt composed of an upper cover rubber, a reinforcing material and a lower cover rubber. .
を特徴とするベルトコンベア。6. A belt conveyor equipped with the belt according to claim 5.
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| JP2001300856A JP4963535B2 (en) | 2001-09-28 | 2001-09-28 | Rubber composition for belt of belt conveyor, belt and belt conveyor |
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| JP2001300856A JP4963535B2 (en) | 2001-09-28 | 2001-09-28 | Rubber composition for belt of belt conveyor, belt and belt conveyor |
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| JP4963535B2 JP4963535B2 (en) | 2012-06-27 |
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|---|---|---|---|
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006199892A (en) * | 2005-01-24 | 2006-08-03 | Bridgestone Corp | Rubber composition for conveyor belt, rubber for conveyor belt cover, and conveyor belt |
| WO2014171419A1 (en) * | 2013-04-19 | 2014-10-23 | 株式会社ブリヂストン | Rubber composition for conveyor belt, and rubber for conveyor belt cover and conveyor belt in which composition is used |
| JP2017226734A (en) * | 2016-06-21 | 2017-12-28 | 株式会社ブリヂストン | Rubber composition for conveyor belt, and conveyor belt |
| WO2018168156A1 (en) * | 2017-03-14 | 2018-09-20 | 横浜ゴム株式会社 | Conveyor belt rubber composition and conveyor belt |
| KR20190100978A (en) | 2017-03-14 | 2019-08-29 | 요코하마 고무 가부시키가이샤 | Rubber compositions and conveyor belts for conveyor belts |
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| JP2000313773A (en) * | 1999-04-03 | 2000-11-14 | Degussa Huels Ag | Rubber blend, its production, molded form obtained therefrom and use of the blend |
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| JP2001192504A (en) * | 2000-01-13 | 2001-07-17 | Jsr Corp | Method for manufacturing conjugated diene-based rubber composition |
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| JPS6250345A (en) * | 1985-08-29 | 1987-03-05 | Japan Synthetic Rubber Co Ltd | Rubber composition and production thereof |
| JPH09183868A (en) * | 1995-12-20 | 1997-07-15 | Bayer Ag | Vulcanizable rubber composition for producing vehicle tire |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006199892A (en) * | 2005-01-24 | 2006-08-03 | Bridgestone Corp | Rubber composition for conveyor belt, rubber for conveyor belt cover, and conveyor belt |
| WO2014171419A1 (en) * | 2013-04-19 | 2014-10-23 | 株式会社ブリヂストン | Rubber composition for conveyor belt, and rubber for conveyor belt cover and conveyor belt in which composition is used |
| JP2014210879A (en) * | 2013-04-19 | 2014-11-13 | 株式会社ブリヂストン | Rubber composition for conveyor belt and rubber for conveyor belt cover and conveyor belt using the composition |
| JP2017226734A (en) * | 2016-06-21 | 2017-12-28 | 株式会社ブリヂストン | Rubber composition for conveyor belt, and conveyor belt |
| WO2018168156A1 (en) * | 2017-03-14 | 2018-09-20 | 横浜ゴム株式会社 | Conveyor belt rubber composition and conveyor belt |
| KR20190100978A (en) | 2017-03-14 | 2019-08-29 | 요코하마 고무 가부시키가이샤 | Rubber compositions and conveyor belts for conveyor belts |
| KR20190120196A (en) | 2017-03-14 | 2019-10-23 | 요코하마 고무 가부시키가이샤 | Rubber compositions and conveyor belts for conveyor belts |
| JPWO2018168156A1 (en) * | 2017-03-14 | 2020-01-16 | 横浜ゴム株式会社 | Rubber composition for conveyor belt and conveyor belt |
| JP7081587B2 (en) | 2017-03-14 | 2022-06-07 | 横浜ゴム株式会社 | Rubber composition for conveyor belts and conveyor belts |
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