JP3229889B2 - Mold cleaning rubber composition - Google Patents

Mold cleaning rubber composition

Info

Publication number
JP3229889B2
JP3229889B2 JP29376791A JP29376791A JP3229889B2 JP 3229889 B2 JP3229889 B2 JP 3229889B2 JP 29376791 A JP29376791 A JP 29376791A JP 29376791 A JP29376791 A JP 29376791A JP 3229889 B2 JP3229889 B2 JP 3229889B2
Authority
JP
Japan
Prior art keywords
rubber
mold
weight
rubber composition
cleaning
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.)
Expired - Fee Related
Application number
JP29376791A
Other languages
Japanese (ja)
Other versions
JPH05104538A (en
Inventor
均 近藤
佑三 酒井
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.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP29376791A priority Critical patent/JP3229889B2/en
Publication of JPH05104538A publication Critical patent/JPH05104538A/en
Application granted granted Critical
Publication of JP3229889B2 publication Critical patent/JP3229889B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Detergent Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、ゴム組成物に関し、詳
しくは繰返し加硫によって表面が汚染された金型を洗浄
するために用いられる金型洗浄ゴム組成物に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber composition and, more particularly, to a mold cleaning rubber composition used for cleaning a mold whose surface has been contaminated by repeated vulcanization.

【0002】[0002]

【従来の技術】ゴムの成形加工業界においては、加硫金
型の汚染は古くから知られており、金型汚染は、加硫工
程において、その使用頻度とともに促進され、ゴム成型
品の品質、外観、寸法精度など、製品に重大な欠陥を与
えたり、金型からの離型性や金型の寿命を短くするとい
った問題がある。このため、これまでに金型汚染対策と
して数多くの検討がなされ、例えば特公昭59ー449
80号公報に記載された有機リン酸エステルやシクロペ
ンタジエン誘導体カルボン酸塩を外面液に添加する方法
や、特開昭62ー113518号公報に記載された分子
内に珪素とイソシアネート基を有する化合物にて金型を
表面処理する方法が行われていた。
2. Description of the Related Art In the rubber molding and processing industry, contamination of a vulcanizing mold has been known for a long time, and mold contamination is promoted in the vulcanizing process together with the frequency of use, and the quality of a rubber molded product is improved. There are problems such as giving a serious defect to the product such as appearance and dimensional accuracy, releasing from the mold and shortening the life of the mold. For this reason, a number of studies have been made on mold contamination countermeasures, for example, Japanese Patent Publication No. 59-449.
No. 80, a method of adding an organic phosphate or a cyclopentadiene derivative carboxylate to an outer surface liquid, or a method described in JP-A No. 62-113518 to a compound having silicon and isocyanate groups in a molecule. There has been a method of surface-treating a mold.

【0003】あるいはゴム組成物中に各種有機化合物を
添加する組成物を使用する方法が提案されている。これ
らとしては、特開昭54ー63144号公報に記載され
た環化ポリブタジエン、特公昭57ー53812号公報
に記載された有機リン酸エステル塩、特開昭54ー10
7943号公報に記載されたメルカプトベンゾー1,3
ージアゾール塩、特開昭54ー126251号公報に記
載されたシクロペンタジエン誘導体カルボン酸金属塩、
特公昭61ー20585号公報に記載された2ーメルカ
プトベンズイミダゾールまたはその亜鉛塩、特開昭63
ー238143号公報に記載された特定のシリカ、含水
ケイ酸などを配合することによって金型汚染を改良する
試みが提案されている。
Alternatively, there has been proposed a method of using a composition in which various organic compounds are added to a rubber composition. These include cyclized polybutadienes described in JP-A-54-63144, organic phosphoric acid ester salts described in JP-B-57-53812, and JP-A-54-10.
No. 7943, mercaptobenzo-1,3
-Diazole salts, cyclopentadiene derivative carboxylic acid metal salts described in JP-A-54-126251,
2-mercaptobenzimidazole or a zinc salt thereof described in JP-B-61-20585;
No. 238143 discloses an attempt to improve mold contamination by blending a specific silica, hydrous silicic acid, or the like.

【0004】また、この他に定期的な金型洗浄例えばガ
ラスビーズなどによるショトブラスト法や酸やアルカリ
洗浄などが行われている。また、金型を加硫機から取り
外さないで洗浄する方法として金型洗浄ゴム組成物が市
販されている。これらは殆ど分解し易いアミン系の薬品
例えば2ーアミノー2ーメチルー1ープロパノール、ア
ミノエチルジエチレンアミンなどが多量に配合されてい
る。また、これらのゴム組成物としては、特開昭63ー
105099号公報に記載されたグリコールエーテル
類、特開平3ー161309号公報に記載された有機環
式化合物であるラクタムまた有機環式イミド、特開平3
ー161310号公報に記載されたアルキルアミンのア
ルキレンオキサイド付加物が提案されている。
[0004] In addition, periodic cleaning of a mold, for example, a shot blast method using glass beads or the like, acid or alkali cleaning, and the like are performed. As a method for cleaning the mold without removing it from the vulcanizer, a mold cleaning rubber composition is commercially available. These contain a large amount of amine-based chemicals which are almost easily decomposed, such as 2-amino-2-methyl-1-propanol and aminoethyldiethyleneamine. Examples of these rubber compositions include glycol ethers described in JP-A-63-105099, lactams and organic cyclic imides which are organic cyclic compounds described in JP-A-3-161309. JP Hei 3
161310 has proposed an alkylene oxide adduct of an alkylamine.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、ゴム組
成物中に各種有機化合物を配合する方法は汚染を遅らせ
ることはできるが、汚染を完全に防止することはできな
い。定期的な金型洗浄は金型を傷つけ、以後の汚染速度
を急速にしたり、金型を腐食させたりするばかりか、洗
浄のため金型を加硫機から取り外さねばならず、特にタ
イヤなどの大型のゴム製品の場合は、その工数は無視で
きず生産性が低下してしまうといった難点があった。ま
た、金型洗浄ゴム組成物はある程度の効果はあるものの
未だ十分とはいえず、また、これら洗浄ゴム組成物の殆
どは分解し易いアミン系のため、室温下でもアンモニア
臭気がしたり、加熱後さらに多量のアミンなどが発生す
るため、これによる金型を腐食させたりあるいは作業環
境上も極めて問題であった。
However, the method of blending various organic compounds in the rubber composition can delay the contamination, but cannot completely prevent the contamination. Periodic mold cleaning not only damages the mold and speeds up the subsequent contamination and corrodes the mold, but also requires the mold to be removed from the vulcanizer for cleaning, especially for tires, etc. In the case of a large rubber product, the man-hour cannot be ignored and there is a disadvantage that productivity is reduced. In addition, although the mold cleaning rubber composition has a certain effect, it cannot be said that it is still sufficient.Moreover, most of these cleaning rubber compositions are easily decomposed amines, so that ammonia odor is generated even at room temperature, Thereafter, a large amount of amines and the like is generated, which corrodes the mold and is extremely problematic in the working environment.

【0006】本発明は、金型の洗浄効果に優れ、生産性
のよい、金型を傷つけたり、腐食させたりしないその上
作業上の環境をよくするゴム金型の洗浄ゴム組成物を提
供することを目的とする。
The present invention provides a rubber mold cleaning rubber composition which is excellent in mold cleaning effect, has good productivity, does not damage or corrode the mold, and improves the working environment. The purpose is to:

【0007】[0007]

【課題を解決するための手段】本発明者らは、前記課題
すなわち金型を傷つけたり、腐食させたりあるいは作業
環境上の問題を解決するため鋭意研究を行った。その結
果、油圧装置の作動油として知られている水グリコール
系難粘性作動液を配合したゴム組成物が著しく洗浄効果
があることを見出し、本発明を完成した。
Means for Solving the Problems The present inventors have conducted intensive studies to solve the above-mentioned problem, that is, damage or corrosion of a mold or a problem in a working environment. As a result, the present inventors have found that a rubber composition containing a water-glycol-based low-viscosity hydraulic fluid known as a hydraulic oil for hydraulic devices has a remarkable cleaning effect, and completed the present invention.

【0008】 すなわち、天然ゴムおよび/または合成
ゴムからなるゴム100重量部に対し、水とグリコール
類を主成分とする作動液用液体1〜100重量部を含有
してなる金型洗浄ゴム組成物またはこれらの金型洗浄ゴ
ム組成物に吸着剤1〜200重量部を併せて含有してな
る金型洗浄ゴム組成物、前記作動液用液体の水の含有率
が5〜80重量%である金型洗浄ゴム組成物である。本
発明のゴム組成物において、ゴムとしては、天然ゴム、
合成ポリイソプレンゴム、スチレンーブタジエン共重合
ゴム、ポリブタジエンゴム、エチレンープロピレンージ
エン三元共重合体ゴム、ブチルゴムおよびハロゲン化ブ
チルゴムなどが用いられ、これらを単独でも、また2種
以上をブレンドしてもよいが、好ましくは粘着性の高い
天然ゴムや合成ポリイソプレンゴムである。
[0008] More specifically, a mold cleaning rubber composition containing 1 to 100 parts by weight of a working fluid liquid containing water and glycols as main components based on 100 parts by weight of a rubber made of natural rubber and / or synthetic rubber. Alternatively, a mold cleaning rubber composition containing 1 to 200 parts by weight of an adsorbent to these mold cleaning rubber compositions, or a metal having a water content of 5 to 80% by weight of the working fluid. It is a mold cleaning rubber composition. In the rubber composition of the present invention, as the rubber, natural rubber,
Synthetic polyisoprene rubber, styrene-butadiene copolymer rubber, polybutadiene rubber, ethylene-propylene diene terpolymer rubber, butyl rubber, halogenated butyl rubber, etc. are used. These may be used alone or by blending two or more. However, natural rubber or synthetic polyisoprene rubber having high adhesiveness is preferable.

【0009】 本発明のゴム組成物において、水とグリ
コール類を主成分として含有する液体としては、例えば
水グリコール系難粘性作動液があり、これは高熱金属を
取り扱う油圧装置などに使用されている作動液であっ
て、水とポリエチレングリコールなどのグリコール類を
主成分とし、必要に応じて粘度調整のために高分子ポリ
マーや泡立ち防止剤、金属の防錆を目的に防錆剤などが
添加されている。
In the rubber composition of the present invention, the liquid containing water and glycols as main components includes, for example, a water-glycol-based hard-to-viscosity hydraulic fluid, which is used for a hydraulic device or the like that handles a high heat metal. Hydraulic fluid that contains water and glycols such as polyethylene glycol
As a main component , a high-molecular polymer and an antifoaming agent are added as needed for viscosity adjustment, and a rust inhibitor is added for the purpose of preventing metal rust.

【0010】 これらの製品としては、例えば日本石油
株式会社製のニューハイランドFRG46、ニューハイ
ランドFRG32、コスモ石油株式会社製コスモフルー
ドHY32、コスモフルードHQ46、昭和シェル石油
株式会社製G―Wフルード、モービル石油株式会社製ナ
イバックFR2000フルード、モービルハイドロフル
ードHFC、共同石油株式会社製ハイドリアGおよびベ
トルブインターナショナル株式会社製BP,Enorg
olSFー15などがあり、これらを2種以上併用して
もよいが、本発明はこれらに限定されるものではなく、
同様の効果を有する水グリコール系の作動液やその他水
とグリコール類を主成分として含有する液体も包含され
る。
These products include, for example, New Highland FRG46 and New Highland FRG32 manufactured by Nippon Oil Co., Ltd., Cosmo Fluid HY32 and Cosmo Fluid HQ46 manufactured by Cosmo Oil Co., Ltd., GW Fluid manufactured by Showa Shell Sekiyu KK, Mobil Oil Co., Ltd. Nyvac FR2000 Fluid, Mobil Hydro Fluid HFC, Hydria G manufactured by Kyodo Sekiyu Co., Ltd. and BP, Enorg manufactured by Vetrub International Co., Ltd.
olSF-15 and the like, and two or more of these may be used in combination, but the present invention is not limited to these.
Liquid containing as a main component working fluid and the other water <br/> and glycols water glycol having similar effects are also included.

【0011】また、これら液体の配合量は1〜100重
量部である。配合量が1重量部未満では洗浄効果が十分
ではなく、100重量部を超えると混練り時作動液をゴ
ム組成物に練り込むことが困難であるばかりか洗浄後に
金型表面に液体の一部が残ってしまい好ましくない。そ
して、これらの液体の水含有率は5〜80重量%、好ま
しくは20〜60重量%であり、この範囲より水が多く
ても少なくても洗浄効果が悪化し、好ましくない。
The amount of these liquids is 1 to 100 parts by weight. If the compounding amount is less than 1 part by weight, the cleaning effect is not sufficient, and if it exceeds 100 parts by weight, not only is it difficult to knead the working fluid into the rubber composition during kneading, but also a part of the liquid Remains undesirably. The water content of these liquids is from 5 to 80% by weight, preferably from 20 to 60% by weight, and if the amount of water is larger or smaller than this range, the cleaning effect deteriorates, which is not preferable.

【0012】本発明においては、汚染物質を金型から剥
ぎ取り、ゴム組成物に吸着させて取り除く必要がある
が、このために必要に応じて吸着剤を併用すると相乗的
に洗浄効果が向上する。また、前述の液体をゴムに混練
りする際に、これら吸着剤に含浸させて、混練りすると
よりスムースに混練りされる。これら吸着剤としてはシ
リカ、活性アルミナ、活性炭、酸化マグネシウム、酸化
チタン、炭酸マグネシウム、炭酸カルシウム、澱粉、ベ
ントナイト、珪藻土などが使用されるが、金型を洗浄
後、ゴム組成物を取り出す際に、複雑な形状の金型の場
合、ゴム組成物が途中できれてしまい、金型に残ってし
まうことがあるため、好適には補強性のあるシリカが使
用される。
In the present invention, it is necessary to peel off contaminants from the mold and remove them by adsorbing them to the rubber composition. For this purpose, if an adsorbent is used in combination as required, the cleaning effect is synergistically improved. . Further, when the above liquid is kneaded into rubber, the rubber is impregnated with these adsorbents and kneaded, whereby the rubber is kneaded more smoothly. As these adsorbents, silica, activated alumina, activated carbon, magnesium oxide, titanium oxide, magnesium carbonate, calcium carbonate, starch, bentonite, diatomaceous earth, etc. are used.When the rubber composition is taken out after washing the mold, In the case of a mold having a complicated shape, the rubber composition may be formed in the middle and may remain in the mold. Therefore, silica having a reinforcing property is preferably used.

【0013】これら吸着剤の配合量はゴム100重量部
に対し1〜200重量部である。また、これらの吸着剤
は前述の液体をゴムに混練りする際に加えられる。配合
量が1重量部未満では金型洗浄効果が十分でなく、20
0重量部を超えると増量効果が発揮できないばかりでな
く、ゴム組成物の粘度が高くなりすぎて金型の隅々まで
ゴム組成物が十分に流れ込むことができず、洗浄されな
い箇所が残ってしまうため好ましくない。 本発明のゴ
ム組成物においては、ゴム工業で通常使用されるカーボ
ンブラック、クレー、炭酸カルシウムなどの充填剤、ア
ロマオイル、ナフテニックオイルなどの軟化剤、硫黄な
どの加硫剤や加硫促進剤、老化防止剤などを必要に応じ
て配合するごとができる。本発明のゴム組成物はタイヤ
を始めとするあらゆるゴム製品を加硫する金型の洗浄に
好適に使用される。
The amount of these adsorbents is 1 to 200 parts by weight per 100 parts by weight of rubber. These adsorbents are added when the above-mentioned liquid is kneaded with rubber. If the amount is less than 1 part by weight, the mold cleaning effect is not sufficient,
If the amount exceeds 0 parts by weight, not only the effect of increasing the amount cannot be exhibited, but also the viscosity of the rubber composition becomes too high, so that the rubber composition cannot sufficiently flow into every corner of the mold, and uncleaned portions remain. Therefore, it is not preferable. In the rubber composition of the present invention, carbon black, clay, fillers such as calcium carbonate, aroma oils, softeners such as naphthenic oil, vulcanizing agents such as sulfur and vulcanization accelerators commonly used in the rubber industry are used. , An anti-aging agent and the like can be added as needed. The rubber composition of the present invention is suitably used for cleaning a mold for vulcanizing any rubber product such as a tire.

【0014】以下、実施例によって本発明をさらに具体
的に説明するが、本発明は、この実施例によって何等限
定されるものではない。 (実施例1)表1に示した配合内容の各種の各種ゴム組
成物を混練りし、厚さ2mmの未加硫ゴムシートを作成
した。これら各種ゴムシートのうち実施例1〜5および
比較例の6種類をタイヤサイズ135SR12の生タイ
ヤの表面を6等分して全面に貼り付けた。残りのゴムシ
ート、実施例6〜10および従来例についても同様サイ
ズの生タイヤの全面に6等分して貼り付けた。これら2
種類の生タイヤを、同サイズのタイヤを2週間連続で加
硫し続けたことにより、真黒にその表面が汚染された金
型に入れ、15分間加硫し、通常通りタイヤを取り出し
た。その時の金型洗浄度を目視により評価した。全く洗
浄されなかった場合を0、完全に洗浄された場合を5と
して6段階で評価した。結果を表1に合わせて記載し
た。
Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited to these examples. (Example 1) Various rubber compositions having the composition shown in Table 1 were kneaded to prepare an unvulcanized rubber sheet having a thickness of 2 mm. Of these various rubber sheets, six types of Examples 1 to 5 and Comparative Example were affixed to the entire surface of a raw tire having a tire size of 135SR12 by dividing the surface into six equal parts. The remaining rubber sheets, Examples 6 to 10 and the conventional example were also affixed in six equal parts to the entire surface of a green tire of the same size. These two
The same kind of green tire was continuously vulcanized for two weeks, so that it was put into a mold whose surface was contaminated with black and vulcanized for 15 minutes, and the tire was taken out as usual. The cleaning degree of the mold at that time was visually evaluated. The case where cleaning was not performed at all was evaluated as 0, and the case where cleaning was performed completely was evaluated as 5, and evaluated in 6 levels. The results are shown in Table 1.

【0015】[0015]

【表1】 [Table 1]

【0016】なお、従来例の配合内容は、ポリマーの
友、11巻、693〜695頁に記載されているもの
で、EPDM100重量部に、シリカ20重量部、2ー
アミノー1ープロパノール30重量部、酸化チタン10
重量部、ステアリン酸1重量部、亜鉛華5重量部、ジク
ミルパーオキサイド9重量部および硫黄0.3重量部で
ある。表1から明らかなように、実施例で示した本発明
の金型洗浄ゴム組成物は、著しく洗浄効果に優れてい
る。
The compounding contents of the prior art are described in Polymer No. 11, Vol. 11, pp. 693-695. 100 parts by weight of EPDM, 20 parts by weight of silica, 30 parts by weight of 2-amino-1-propanol, oxidized Titanium 10
Parts by weight, stearic acid 1 part by weight, zinc white 5 parts by weight, dicumyl peroxide 9 parts by weight, and sulfur 0.3 parts by weight. As is clear from Table 1, the mold cleaning rubber compositions of the present invention shown in the examples have remarkably excellent cleaning effects.

【0017】[0017]

【発明の効果】本発明の効果として、洗浄効果に優れ、
従来の洗浄ゴムのようにアミン系の薬品を使用していな
いため、衛生上も全く問題とならない。また、従来タイ
ヤ用の金型の洗浄は金型を取外し、ガラスビーズなどに
よるショトブラストによって洗浄していたため多大の工
数を費やしていたが、本発明の金型洗浄ゴム組成物を用
いれば大幅な工数減と金型表面の損傷も著しく改善する
ことができる。
According to the present invention, the cleaning effect is excellent.
Since no amine-based chemical is used unlike the conventional cleaning rubber, there is no problem in hygiene. Conventionally, cleaning of a mold for a tire has taken a lot of man-hours because the mold was removed and washed by shot blasting with glass beads or the like.However, if the mold cleaning rubber composition of the present invention is used, a great deal of work is required. Man-hour reduction and damage to the mold surface can be remarkably improved.

フロントページの続き (51)Int.Cl.7 識別記号 FI C11D 7:26) C11D 7:26) (56)参考文献 特開 平1−297411(JP,A) 特開 昭63−105099(JP,A) 特開 平3−161309(JP,A) 特開 平2−20538(JP,A) 特開 昭60−67532(JP,A) 特表 平6−507581(JP,A) (58)調査した分野(Int.Cl.7,DB名) B29C 33/00 - 33/76 C08L 21/00 C11D 7/60 Continuation of the front page (51) Int.Cl. 7 identification symbol FI C11D 7:26) C11D 7:26) (56) References JP-A-1-297411 (JP, A) JP-A-63-105099 (JP, A) JP-A-3-161309 (JP, A) JP-A-2-20538 (JP, A) JP-A-60-67532 (JP, A) JP-A-6-507581 (JP, A) (58) Survey Field (Int.Cl. 7 , DB name) B29C 33/00-33/76 C08L 21/00 C11D 7/60

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 天然ゴムおよび/または合成ゴムからな
るゴム100重量部に対し、水とグリコール類を主成分
とする作動液用液体1〜100重量部を含有してなる金
型洗浄ゴム組成物。
1. Water and glycols are the main components with respect to 100 parts by weight of rubber made of natural rubber and / or synthetic rubber.
A mold cleaning rubber composition containing 1 to 100 parts by weight of a liquid for working fluid.
【請求項2】 天然ゴムおよび/または合成ゴムからな
るゴム100重量部に対し、水とグリコール類を主成分
とする作動液用液体1〜100重量部に、更に吸着剤1
〜200重量部を併せて含有してなる金型洗浄ゴム組成
物。
2. Water and glycols are the main components with respect to 100 parts by weight of rubber made of natural rubber and / or synthetic rubber.
1 to 100 parts by weight of the working fluid liquid and the adsorbent 1
A rubber composition for cleaning a mold, which further comprises -200 parts by weight.
【請求項3】 前記作動液用液体の水の含有率が5〜8
0重量%であることを特徴とする請求項1または2に記
載の金型洗浄ゴム組成物。
3. The water content of the working liquid is 5-8.
The mold cleaning rubber composition according to claim 1 or 2, which is 0% by weight.
JP29376791A 1991-10-15 1991-10-15 Mold cleaning rubber composition Expired - Fee Related JP3229889B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29376791A JP3229889B2 (en) 1991-10-15 1991-10-15 Mold cleaning rubber composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29376791A JP3229889B2 (en) 1991-10-15 1991-10-15 Mold cleaning rubber composition

Publications (2)

Publication Number Publication Date
JPH05104538A JPH05104538A (en) 1993-04-27
JP3229889B2 true JP3229889B2 (en) 2001-11-19

Family

ID=17798951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29376791A Expired - Fee Related JP3229889B2 (en) 1991-10-15 1991-10-15 Mold cleaning rubber composition

Country Status (1)

Country Link
JP (1) JP3229889B2 (en)

Also Published As

Publication number Publication date
JPH05104538A (en) 1993-04-27

Similar Documents

Publication Publication Date Title
EP0546516B1 (en) Rubber composition for cleaning metal mold and method for cleaning
JP3270246B2 (en) Mold cleaning rubber composition and mold cleaning method
JP3229889B2 (en) Mold cleaning rubber composition
US3476599A (en) Metal cleaning composition and method
US6322721B1 (en) Quaternary ammonium salt vulcanization accelerators for rubbers and plastics
JP3181675B2 (en) Cleaning method for rubber mold
JP3179179B2 (en) Mold cleaning rubber composition and cleaning method
JP2003238744A (en) Process for producing rubber composition
JP3136182B2 (en) Mold cleaning rubber composition
JP3330650B2 (en) Mold cleaning rubber composition and mold cleaning method
JP3125802B2 (en) Rubber composition for vibration isolation
JP3503088B2 (en) Mold cleaning composition
JP2633101B2 (en) Mold regeneration composition
EP0204790B1 (en) Polyolefinic elastomer compositions, production process and articles obtained from said compositions
JP3329661B2 (en) Rubber composition for mold cleaning and mold cleaning method
JP3392448B2 (en) Automotive tubes and methods of reducing oil fumes during vulcanization of tubes.
JPH05261740A (en) Rubber for washing mold
JPH0649284A (en) Ethylene-acrylic ester copolymer rubber composition
JPH1036560A (en) Rubber composition for cleansing mold and cleansing of mold
JPH04234444A (en) Rubber composition with lowered mold staining
JPS59105038A (en) Dust-proof tackifying vulcanized rubber sheet
JPH06297471A (en) Rubber composition for cleaning mold
JP3314581B2 (en) Blended rubber composition
JPS584941B2 (en) Baked-on soundproofing paint
JP2001026680A (en) Rubber composition for pneumatic tire

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)

Year of fee payment: 7

Free format text: PAYMENT UNTIL: 20080907

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 7

Free format text: PAYMENT UNTIL: 20080907

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090907

Year of fee payment: 8

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 8

Free format text: PAYMENT UNTIL: 20090907

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 9

Free format text: PAYMENT UNTIL: 20100907

LAPS Cancellation because of no payment of annual fees