JPH0789205A - Endless printing belt for rotary rubber seal - Google Patents
Endless printing belt for rotary rubber sealInfo
- Publication number
- JPH0789205A JPH0789205A JP25774593A JP25774593A JPH0789205A JP H0789205 A JPH0789205 A JP H0789205A JP 25774593 A JP25774593 A JP 25774593A JP 25774593 A JP25774593 A JP 25774593A JP H0789205 A JPH0789205 A JP H0789205A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- printing belt
- endless printing
- pts
- parts
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は回転ゴム印用の無端印字
ベルトに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endless printing belt for rotary rubber stamps.
【従来の技術】従来、回転ゴム印用の無端印字ベルト
は、所要の凹文字を形成した金型内に加硫剤、充填剤、
添加剤等を混練した未加硫ゴムよりなるシートを収容し
たうえ、その上面に補強布を重ね加圧加熱して加硫した
後脱型して、金型の凹文字に相当する凸文字が表面に形
成された板状の加硫ゴムを製造し、次に、一方の端のゴ
ムを剥離した接着部Ａにゴム溶剤に溶かした未加硫ゴム
を塗布した後、他方の端の接着部Ｂと加硫接着して無端
の環状体とし、これを所要幅に切断し、環状帯体として
得られている（図１、図２参照）。用いられるゴムは主
に天然ゴム（ＮＲ）であるが、一部では産業用・工業用
ゴム印として、一般に優れた耐油・耐溶剤性を示すアク
リロニトリル−ブタジエンゴム（ＮＢＲ）も用いられて
いる。しかし、天然ゴムは耐磨耗性、耐油・耐溶剤性に
劣り、長期間の使用や油性スタンプインキには耐えられ
ない欠点があった。その点、ＮＢＲは耐磨耗性に優れ、
鉱物油、炭化水素系溶剤に対しては優れた耐油・耐溶剤
性を示すが、主溶剤としてエチレングリコールモノエチ
ルエーテル、エレングリコールモノブチルエーテル、プ
ロピレングリコールモノエチルエーテル等のグリコール
エーテル、ベンジルアルコール等の芳香族アルコールを
用いているスタンプインキに対しては膨潤してしまっ
て、長期間の使用には耐えられない欠点があった。そこ
で、出願人はエチレン−プロピレン−ジエンゴム（ＥＰ
ＤＭ）をゴム印材として使用したところ、耐磨耗性に優
れ、グリコールエーテル、ベンジルアルコールに優れた
耐溶剤性を示すゴム印を得ることができた。しかし、Ｅ
ＰＤＭは、接着性が著しく劣る欠点があり、短期間で接
着部が剥離したり、布が剥離してしまうので、長期間の
使用に耐え得る回転ゴム印用の無端印字ベルトを得るこ
とは非常に困難であった。特に、接着部は補強用の布に
加硫ゴムが固着した特殊な状態となっているため、接着
部同士を接着することすらできないことがあった。そこ
で、ＥＰＤＭの物性を保持したまま接着性を向上させる
ゴムとして、ＮＢＲ等を配合したブレンドゴムが提唱さ
れているが（特開昭４９−８９７４９、特開昭５４−１
０６５５４、特開昭６２−１７２０４３等）、ＮＢＲの
配合量が多すぎてＥＰＤＭの物性が低下してしまい、前
記溶剤に対して膨潤してしまった。一方、ＮＢＲの配合
量を少なくすると十分な接着力を得ることができず、無
端印字ベルトとすることができなかった。さらに、ＥＰ
ＤＭ−ＮＢＲブレンドゴムは、ＥＰＤＭ１００％ゴム又
はＮＢＲ１００％ゴムと異なり、満足する物性を得るに
は、イオウ、加硫促進剤の多量配合が必要となり、黒く
変色してしまう欠点があるため、黒色以外のゴムを得る
ことは困難であった。2. Description of the Related Art Conventionally, an endless printing belt for a rotary rubber stamp has a vulcanizing agent, a filler,
After accommodating a sheet made of unvulcanized rubber kneaded with additives and the like, stacking a reinforcing cloth on the upper surface of the sheet and vulcanizing by heating under pressure, the mold is removed, and the convex character corresponding to the concave character of the mold is After manufacturing a plate-shaped vulcanized rubber formed on the surface, and then applying unvulcanized rubber dissolved in a rubber solvent to the adhesive portion A where the rubber at one end is peeled off, the adhesive portion at the other end is applied. B is vulcanized and adhered to form an endless annular body, which is cut into a required width to obtain an annular band (see FIGS. 1 and 2). The rubber used is mainly natural rubber (NR), but in some cases, acrylonitrile-butadiene rubber (NBR), which generally shows excellent oil resistance and solvent resistance, is also used as an industrial / industrial rubber stamp. However, natural rubber is inferior in abrasion resistance, oil resistance and solvent resistance, and has a drawback that it cannot withstand long-term use and oil-based stamp ink. In that respect, NBR has excellent wear resistance,
It has excellent oil and solvent resistance to mineral oils and hydrocarbon solvents, but as the main solvent ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, glycol ether such as propylene glycol monoethyl ether, benzyl alcohol, etc. A stamp ink using an aromatic alcohol swells and has a drawback that it cannot withstand long-term use. Therefore, the applicant has proposed ethylene-propylene-diene rubber (EP
When DM) was used as a rubber stamp material, a rubber stamp having excellent abrasion resistance and excellent solvent resistance to glycol ether and benzyl alcohol could be obtained. But E
PDM has a drawback that its adhesiveness is extremely inferior, and an adhesive portion or a cloth may be peeled off in a short period of time, so it is very possible to obtain an endless printing belt for a rotating rubber stamp that can endure long-term use. It was difficult. In particular, since the adhesive portion is in a special state in which the vulcanized rubber is adhered to the reinforcing cloth, it may not even be possible to adhere the adhesive portion to each other. Therefore, a blend rubber containing NBR or the like has been proposed as a rubber for improving the adhesiveness while maintaining the physical properties of EPDM (Japanese Patent Laid-Open Nos. 49-89749 and 54-1).
06554, JP-A-62-172043, etc.), the amount of NBR compounded was too large, and the physical properties of EPDM deteriorated, causing swelling in the solvent. On the other hand, when the blending amount of NBR was reduced, sufficient adhesive force could not be obtained, and the endless printing belt could not be obtained. Furthermore, EP
Unlike EPDM 100% rubber or NBR 100% rubber, DM-NBR blended rubber requires a large amount of sulfur and a vulcanization accelerator to be blended in order to obtain satisfactory physical properties. It was difficult to get rubber.
【０００２】[0002]
【発明が解決しようとする課題】本発明は、耐磨耗性に
優れ、グリコールエーテル、ベンジルアルコール等の溶
剤に膨潤せず、かつ、様々な色のものが得られる回転ゴ
ム印用の無端印字ベルトを提供する。SUMMARY OF THE INVENTION The present invention provides an endless printing belt for a rotating rubber stamp, which is excellent in abrasion resistance, does not swell in a solvent such as glycol ether or benzyl alcohol, and can be obtained in various colors. I will provide a.
【０００３】[0003]
【課題を解決するための手段】ゴムの表面に凸文字を形
成し、裏面を布で補強した回転ゴム印用の無端印字ベル
トにおいて、無端印字ベルトが、エチレン−プロピレン
−ジエンゴム７０〜９９重量部とアクリロニトリル−ブ
タジエンゴム１〜３０重量部との合計１００重量部に対
し、珪酸を２０重量部以上含む充填剤を４０重量部以上
配合してなるゴム組成物を、イオウ加硫したものである
ことを特徴とする回転ゴム印用の無端印字ベルト。In an endless printing belt for a rotating rubber stamp, in which convex characters are formed on the surface of rubber and the back surface is reinforced with cloth, the endless printing belt comprises 70 to 99 parts by weight of ethylene-propylene-diene rubber. A sulfur vulcanization of a rubber composition containing 40 parts by weight or more of a filler containing 20 parts by weight or more of silicic acid, based on 100 parts by weight of 1 to 30 parts by weight of acrylonitrile-butadiene rubber. An endless printing belt for rotating rubber stamps.
【０００４】本発明の無端印字ベルトは、ＥＰＤＭとＮ
ＢＲとからなるブレンドゴムに、２０重量部以上の珪酸
を含む充填剤を加えてなるゴム組成物を、混練した後、
補強用の布と共にイオウ加硫して得られる。ブレンドゴ
ムは、ＥＰＤＭが７０〜９９重量部、好ましくは８０〜
９５重量部と、ＮＢＲが１〜３０重量部、好ましくは５
〜２０重量部との合計１００重量部からなるものであ
る。本発明に用いられるＥＰＤＭ、ＮＢＲは、一般に市
販されているものでよい。例えば、ＪＳＲ ＥＰ３５、
ＥＰ３７Ｃ、ＥＰ６５等（以上、日本合成ゴム社製ＥＰ
ＤＭ）、ＪＳＲ Ｎ２２０Ｓ、Ｎ２２３Ｌ、Ｎ２２１Ｈ
等（以上、日本合成ゴム社製ＮＢＲ）を用いることがで
きる。充填剤は、前記ブレンドゴム１００重量部に対し
て、４０重量部以上、好ましくは６５〜７５重量部が用
いられる。ここで、この充填剤は珪酸２０重量部以上を
含んでいることが要求される。従って、珪酸のみからな
る充填剤であってもよいし、珪酸が２０重量部と他の充
填剤が２０重量部以上からなる充填剤であってよい。本
発明に用いられる珪酸は、一般に市販されている含水珪
酸、無水珪酸どちらも用いることができ、例えばニップ
シールＶＮ３、ニップシールＬＰ等（以上、日本シリカ
工業社製）、レオロシール（以上、徳山曹達社製）等が
挙げられる。必要に応じて用いられる他の充填剤は、一
般に市販されている充填剤を用いることができ、珪酸マ
グネシウム、珪酸カルシウム、炭酸カルシウム等をあげ
ることができる。カーボンブラックを配合したときは、
均一でムラの無い黒色の無端印字ベルトを得ることがで
きるが、白色・有彩色の無端印字ベルトを得ることがで
きないため、本発明においては使用しない。補強用の布
は、加硫温度で溶解、収縮しない繊維のものであれば特
に限定されず、通常、木綿が使用される。加硫剤は、一
般に市販されているイオウ系加硫剤でよく、例えば、イ
オウ、イオウを含む化合物を用いることができ、０．５
〜５部程度配合すればよい。前記ゴム組成物はイオウ加
硫すると白色度の高いクリーム色の加硫ゴムとなるの
で、着色剤を配合させたときは鮮明な色を有する無端印
字ベルトが得られる。The endless printing belt of the present invention is made of EPDM and N
After kneading a rubber composition obtained by adding a filler containing 20 parts by weight or more of silicic acid to a blend rubber composed of BR,
It is obtained by sulfur vulcanization together with a reinforcing cloth. The blended rubber has an EPDM of 70 to 99 parts by weight, preferably 80 to 99 parts by weight.
95 parts by weight and 1 to 30 parts by weight of NBR, preferably 5
˜20 parts by weight, for a total of 100 parts by weight. The EPDM and NBR used in the present invention may be those generally commercially available. For example, JSR EP35,
EP37C, EP65, etc. (above, EP manufactured by Japan Synthetic Rubber Co., Ltd.
DM), JSR N220S, N223L, N221H
Etc. (above, NBR made by Japan Synthetic Rubber Co., Ltd.) can be used. The filler is used in an amount of 40 parts by weight or more, preferably 65 to 75 parts by weight, based on 100 parts by weight of the blend rubber. Here, this filler is required to contain 20 parts by weight or more of silicic acid. Therefore, it may be a filler composed of only silicic acid, or a filler composed of 20 parts by weight of silicic acid and 20 parts by weight or more of another filler. The silicic acid used in the present invention may be any of commercially available hydrous silicic acid and silicic acid anhydride. For example, Nipseal VN3, Nipseal LP, etc. (above, manufactured by Nippon Silica Industry Co., Ltd.), Reoro Seal (above, manufactured by Tokuyama Soda Co., Ltd.) ) And the like. As the other filler that is used as necessary, a commercially available filler can be used, and examples thereof include magnesium silicate, calcium silicate, and calcium carbonate. When blended with carbon black,
A uniform and even black endless printing belt can be obtained, but a white / chromatic endless printing belt cannot be obtained, and thus is not used in the present invention. The reinforcing cloth is not particularly limited as long as it is a fiber that does not melt or shrink at the vulcanization temperature, and cotton is usually used. The vulcanizing agent may be a commercially available sulfur-based vulcanizing agent. For example, a sulfur-containing compound or a sulfur-containing compound may be used.
About 5 parts may be blended. When the rubber composition is sulfur-vulcanized, it becomes a cream-colored vulcanized rubber having a high degree of whiteness, and therefore, when a colorant is added, an endless printing belt having a clear color can be obtained.
【０００５】本発明のゴム組成物には、必要によって公
知の着色剤、加硫助剤、加硫促進剤、軟化剤等を配合す
ることができる。着色剤としては、一般に市販されてい
る黒色以外の顔料であれば特に限定されることなく用い
ることができ、酸化チタン（白色）、クロム酸鉛（黄
色）、酸化鉄（赤色）、フタロシアニン（青色）等をあ
げることができる。本発明のゴム組成物はイオウ加硫し
ても黒く変色せず白色度の高いクリーム色をしているの
で、着色剤を配合すれば様々な鮮明な色の無端印字ベル
トを提供でき、見映えがよく、購買意欲を高める。加硫
助剤としては、ステアリン酸、亜鉛華等があげられる。
加硫促進剤としては、チアゾール類、チラウム類、スル
フェンアミド類、ジチオカルバミン酸塩類等があげられ
る。軟化剤としては、パラフィン系プロセスオイル、ナ
フテン系プロセスオイル等があげられる。If desired, known colorants, vulcanization aids, vulcanization accelerators, softening agents and the like can be added to the rubber composition of the present invention. As the colorant, any commercially available pigment other than black can be used without particular limitation, and titanium oxide (white), lead chromate (yellow), iron oxide (red), phthalocyanine (blue) can be used. ) And so on. Since the rubber composition of the present invention has a cream color with high whiteness without being discolored black even when sulfur vulcanized, it is possible to provide an endless printing belt of various vivid colors by adding a coloring agent, Good to raise the willingness to buy. Examples of the vulcanization aid include stearic acid and zinc white.
Examples of the vulcanization accelerator include thiazoles, thyliums, sulfenamides, dithiocarbamates and the like. Examples of the softening agent include paraffin type process oil and naphthene type process oil.
【０００６】本発明の無端印字ベルトは、前記の所定の
割合で、ＥＰＤＭ、ＮＢＲ、珪酸、イオウ系加硫剤、及
び、必要によりその他の添加剤を混練りしたものを、従
来の回転ゴム印用の無端印字ベルトと同一の製造工程を
経て製造することができる。The endless printing belt of the present invention is obtained by kneading EPDM, NBR, silicic acid, a sulfur-based vulcanizing agent and, if necessary, other additives in the above-mentioned predetermined ratios for conventional rotary rubber stamps. The endless printing belt can be manufactured through the same manufacturing process.
【０００７】ここで本発明に用いられるゴム組成物が前
記配合を逸脱したときは、以下の結果を生じる。 充填剤が所要量の比率で配合されていてもＥＰＤＭの
量が７０重量部未満であれば、グリコールエーテル、ベ
ンジルアルコールを主溶剤とするスタンプインキに対す
る耐溶剤性の低下を招き、一方、９９重量部より大きけ
れば、接着部の接着性が悪くなり無端印字ベルトを製造
できない。 ブレンドゴムが所要量の比率で配合されていても珪酸
の量が２０重量部未満であれば、接着強度が低下して長
期間の使用に耐え得る無端印字ベルトを得ることができ
ず、また、イオウ加硫時に黒く変色してしまって、鮮明
な色の無端印字ベルトを得ることができない。When the rubber composition used in the present invention deviates from the above composition, the following results occur. If the amount of EPDM is less than 70 parts by weight even if the filler is blended in a required ratio, the solvent resistance to the stamp ink containing glycol ether or benzyl alcohol as a main solvent is lowered, while 99 parts by weight is added. If it is larger than the area, the adhesiveness of the adhesive portion is deteriorated and the endless printing belt cannot be manufactured. Even if the blended rubber is blended in the required ratio, if the amount of silicic acid is less than 20 parts by weight, the adhesive strength is reduced and an endless printing belt that can withstand long-term use cannot be obtained. When sulfur is vulcanized, the color changes to black, and it is not possible to obtain an endless printing belt with a clear color.
【０００８】[0008]
【作用】本発明に用いられるゴム組成物が何故前記配合
としたときに接着性を付与し、変色を抑えるかは定かで
はないが、本配合を逸脱したときの結果より、次のよう
に推定できる。 ＥＰＤＭに化学反応性に富むＮＢＲを少量配合するこ
とによりＥＰＤＭが多少改質されると共に、珪酸によっ
てＥＰＤＭの化学反応性が活性化されるので接着性が向
上する。 ブレンドゴムとした場合、ＮＢＲとＥＰＤＭの加硫速
度の違いから架橋されなかった遊離のイオウが流出して
しまうため黒く変色すると思われるが、珪酸がこの未反
応遊離イオウを吸着するので変色が抑さえられる。従っ
て、ゴム組成物が前記配合の場合にのみ、すべての欠点
を克服できるのである。It is not clear why the rubber composition used in the present invention has adhesiveness and suppresses discoloration when formulated as described above, but it is estimated from the results when the composition deviates as follows. it can. By mixing a small amount of NBR, which has a high chemical reactivity, with EPDM, EPDM is modified to some extent, and since the chemical reactivity of EPDM is activated by silicic acid, the adhesion is improved. When blended rubber is used, it is considered that the unsaturated free sulfur will flow out due to the difference in the vulcanization rate of NBR and EPDM, causing a black discoloration. However, since silicic acid adsorbs this unreacted free sulfur, discoloration is suppressed. Can be held. Therefore, all the drawbacks can be overcome only when the rubber composition has the above composition.
【０００９】以下、実施例をあげて説明するが、本発明
は以下の実施例に限定されるものでない。「部」とある
のは、重量部である。実施例、比較例に使用した顔料
は、白：酸化チタン（白石カルシウム社製）、赤：セイ
カファーストレッド８０４０（大日精化社製）、青：セ
イカファーストブルー４９２０（大日精化社製）、黄：
セイカファーストイエロー２２００（大日精化社製）で
ある。加硫助剤は、亜鉛華：ステアリン酸＝１：１に配
合したものを用いた。加硫促進剤は、ノクセラーＴＯＴ
−Ｎ：ノクセラーＣＺ：ノクセラーＴＳ＝８：１：１
（以上、大内新興化学工業社製）に配合したものを用い
た。軟化剤は、プロセスオイル（出光興産社製）を用い
た。Examples will be described below, but the present invention is not limited to the following examples. “Parts” means parts by weight. The pigments used in Examples and Comparative Examples are white: titanium oxide (manufactured by Shiraishi Calcium Co., Ltd.), red: Seika Fast Red 8040 (manufactured by Dainichiseika Co., Ltd.), blue: Seika Fast Blue 4920 (manufactured by Dainichiseika Co., Ltd.), yellow:
It is Seika First Yellow 2200 (manufactured by Dainichiseika). The vulcanization aid used was a mixture of zinc white and stearic acid = 1: 1. The vulcanization accelerator is NOXCELLER TOT
-N: Noxcellor CZ: Noxceller TS = 8: 1: 1
(The above is the product manufactured by Ouchi Shinko Chemical Co., Ltd.). Process oil (made by Idemitsu Kosan Co., Ltd.) was used as the softening agent.
【００１０】[0010]
【表１】 [Table 1]
【００１１】表１上欄の各成分を混練用ゴムローラーに
て混練した後、カレンダーロールにてシート出したゴム
組成物を、凹文字を形成した金型内に収容し、その上面
に補強用の布を重ね、温度１６０℃、圧力１５０ｋｇ／
ｃｍ2、時間１０〜１５分で加硫し、その後離型して得
られた板状の加硫ゴムの一方の端のゴムを剥離し、剥離
した部分（接着部）にゴム溶剤に溶かした同一成分の未
加硫ゴムを塗布した後、他方の端の接着部と温度１７０
℃、圧力４ｋｇ／ｃｍ2で加硫接着して無端の環状体と
し、これを所要幅に切断して無端印字ベルトを得た。無
端印字ベルトの幅は、試験用に３ｍｍに統一した。表１
下欄には、その結果を示す。硬度、引張強度は、ＪＩＳ
−Ｋ６３０１に基づいて測定した。接着強度は、オート
グラフにて測定した。膨潤率は、各溶剤に７日間、５０
℃にて浸した後、その寸法変化を測定した。変色度は、
目視にて相対的に評価した。（◎…黒くならない。△…
やや黒くなる。×…黒くなる。）After kneading the respective components in the upper column of Table 1 with a kneading rubber roller, the rubber composition which is sheeted out by a calender roll is placed in a mold having concave characters and is reinforced on its upper surface. Layered on top, temperature 160 ℃, pressure 150kg /
Vulcanization was performed for 10 to 15 minutes in cm 2 , and then the rubber was peeled off at one end of the plate-shaped vulcanized rubber obtained by releasing, and the peeled portion (adhesive portion) was dissolved in a rubber solvent. After applying the unvulcanized rubber of the same component, the temperature of 170
An endless ring-shaped body was obtained by vulcanizing and adhering at a temperature of 4 ° C. and a pressure of 4 kg / cm 2 and cut into a required width to obtain an endless printing belt. The width of the endless printing belt was unified to 3 mm for the test. Table 1
The results are shown in the lower column. JIS hardness and tensile strength
-Measured based on K6301. The adhesive strength was measured by an autograph. The swelling rate is 50 for 7 days in each solvent.
After soaking at ℃, the dimensional change was measured. The degree of discoloration is
The relative evaluation was made visually. (◎… It does not turn black. △…
It becomes slightly black. ×: It becomes black. )
【００１２】以上の結果より、実施例の無端印字ベルト
は接着強度、膨潤率、変色度のすべてに優れたものとな
ったが、比較例のものは、接着強度、膨潤率、変色度を
すべて同時に満足できるものはできなかった。From the above results, the endless printing belts of Examples were excellent in all of the adhesive strength, the swelling rate and the degree of discoloration, whereas the Comparative Examples had all the adhesive strength, the swelling rate and the degree of discoloration. At the same time, I could not be satisfied.
【００１３】[0013]
【効果】本発明は、ＥＰＤＭの耐磨耗性、グリコールエ
ーテル、ベンジルアルコール・に対する耐溶剤性を損な
うことがなく、接着部が補強用の布に加硫ゴムが固着し
た状態であっても接着部同士が強固に接着できるので長
期にわたって使用しても接着部が剥離することなく、更
に、イオウ加硫によって変色しないので様々な鮮明な色
を有する回転ゴム印用の無端印字ベルトを得ることがで
きる。[Effect] The present invention does not impair the abrasion resistance of EPDM, solvent resistance to glycol ether and benzyl alcohol, and adheres even when the vulcanized rubber is fixed to the reinforcing cloth at the adhesive part. Since the parts can be firmly adhered to each other, the adhered part does not peel off even after long-term use, and since it does not discolor due to sulfur vulcanization, it is possible to obtain endless printing belts for rotating rubber stamps having various vivid colors. .
【００１４】[0014]
【図１】板状の加硫ゴムの斜視図FIG. 1 is a perspective view of a plate-shaped vulcanized rubber.
【図２】接着部を接着させた環状体[Fig. 2] A ring-shaped body in which a bonding portion is bonded
１ 接着部Ａ ２ 接着部Ｂ 1 Adhesive part A 2 Adhesive part B
Claims (1)
で補強した回転ゴム印用の無端印字ベルトにおいて、無
端印字ベルトが、エチレン−プロピレン−ジエンゴム７
０〜９９重量部とアクリロニトリル−ブタジエンゴム１
〜３０重量部との合計１００重量部に対し、珪酸を２０
重量部以上含む充填剤を４０重量部以上配合してなるゴ
ム組成物を、イオウ加硫したものであることを特徴とす
る回転ゴム印用の無端印字ベルト。1. An endless printing belt for a rotary rubber stamp, wherein convex characters are formed on the surface of rubber and the back surface is reinforced with cloth, and the endless printing belt is ethylene-propylene-diene rubber 7
0-99 parts by weight and acrylonitrile-butadiene rubber 1
To 30 parts by weight, total 20 parts by weight of silicic acid
An endless printing belt for a rotating rubber stamp, comprising a sulfur-vulcanized rubber composition obtained by mixing 40 parts by weight or more of a filler containing at least parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25774593A JP3251740B2 (en) | 1993-09-20 | 1993-09-20 | Endless printing belt for rotating rubber stamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25774593A JP3251740B2 (en) | 1993-09-20 | 1993-09-20 | Endless printing belt for rotating rubber stamps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0789205A true JPH0789205A (en) | 1995-04-04 |
| JP3251740B2 JP3251740B2 (en) | 2002-01-28 |
Family
ID=17310516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25774593A Expired - Lifetime JP3251740B2 (en) | 1993-09-20 | 1993-09-20 | Endless printing belt for rotating rubber stamps |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3251740B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6047638A (en) * | 1996-10-16 | 2000-04-11 | Brother Kogyo Kabushiki Kaisha | Stamp device with a porous base plate and its method of manufacture |
| US6112662A (en) * | 1996-10-16 | 2000-09-05 | Brother Kogyo Kabushiki Kaisha | Stamp unit |
| JP2000344979A (en) * | 1999-06-01 | 2000-12-12 | Jsr Corp | High-hardness cured rubber composition |
-
1993
- 1993-09-20 JP JP25774593A patent/JP3251740B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6047638A (en) * | 1996-10-16 | 2000-04-11 | Brother Kogyo Kabushiki Kaisha | Stamp device with a porous base plate and its method of manufacture |
| US6112662A (en) * | 1996-10-16 | 2000-09-05 | Brother Kogyo Kabushiki Kaisha | Stamp unit |
| US6311618B1 (en) | 1996-10-16 | 2001-11-06 | Brother Kogyo Kabushiki Kaisha | Stamp unit with a circumference portion covered by a sealant |
| JP2000344979A (en) * | 1999-06-01 | 2000-12-12 | Jsr Corp | High-hardness cured rubber composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3251740B2 (en) | 2002-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101754867B (en) | Pneumatic tire | |
| JP2003003023A (en) | Thermoplastic elastomer composition and its use | |
| CN100420710C (en) | Elastomer composition and rubber roller | |
| JP6666102B2 (en) | Rubber composition, rubber composite and rubber crawler | |
| DE3032178A1 (en) | THERMOPLASTIC ELASTOMER COMPOSITION | |
| JPH0789205A (en) | Endless printing belt for rotary rubber seal | |
| US4500685A (en) | Method of modifying vulcanized rubber surface with halogenating agents | |
| CN110446751B (en) | Thermoplastic elastomer for carbon fiber reinforced plastic adhesive lamination | |
| US4227956A (en) | Hot-melt adhesion process for vulcanized rubber | |
| US4535003A (en) | Surface modifying compositions for vulcanized rubber and method of modifying vulcanized rubber surface using the same | |
| JPS63270754A (en) | Thermoplastic elastomer composition | |
| JP3328152B2 (en) | Release agent containing silicone oil | |
| JP2589648B2 (en) | Method for forming shoe sole with transparent insert rubber piece integrated | |
| DE1570137A1 (en) | Process for vulcanizing blends consisting of natural rubber, butyl rubber and ethylene terpolymer rubber | |
| US4480066A (en) | Rubber compositions and articles thereof having improved metal adhesion and metal adhesion retention | |
| JPH07188463A (en) | Rubber composition | |
| JPH06158007A (en) | Vulcanized pressure-sensitive adhesive composition | |
| JPH02269139A (en) | Non-black rubber composition and paper feeding roll coated with same composition | |
| RU2189768C1 (en) | Polymeric composition for shoe bottom part | |
| JP2872845B2 (en) | Rubber roll for printing | |
| JPS6058818A (en) | Waterproof sheet | |
| JP3830367B2 (en) | Molded product heat-pressed using a silicone oil-containing release agent | |
| JPH1025380A (en) | Rubber composition | |
| JPS581157B2 (en) | sponge cake | |
| JPS6253361A (en) | Composition for producing chemical-protecting thin rubber film product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081116 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 8 Free format text: PAYMENT UNTIL: 20091116 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 8 Free format text: PAYMENT UNTIL: 20091116 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 8 Free format text: PAYMENT UNTIL: 20091116 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101116 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 9 Free format text: PAYMENT UNTIL: 20101116 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 10 Free format text: PAYMENT UNTIL: 20111116 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121116 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 12 Free format text: PAYMENT UNTIL: 20131116 |