JPH02103247A - Ethylene-propylene rubber composition - Google Patents

Ethylene-propylene rubber composition

Info

Publication number
JPH02103247A
JPH02103247A JP25766988A JP25766988A JPH02103247A JP H02103247 A JPH02103247 A JP H02103247A JP 25766988 A JP25766988 A JP 25766988A JP 25766988 A JP25766988 A JP 25766988A JP H02103247 A JPH02103247 A JP H02103247A
Authority
JP
Japan
Prior art keywords
rubber
weight
parts
ethylene
vulcanized
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
Application number
JP25766988A
Other languages
Japanese (ja)
Other versions
JP2878694B2 (en
Inventor
Kiyonori Ryu
龍 清訓
Atsuo Totsuka
淳生 東塚
Mitsunori Kiyono
清野 光則
Yoshikazu Inoue
良計 井上
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.)
Harima Chemical Inc
Original Assignee
Harima Chemical Inc
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Filing date
Publication date
Application filed by Harima Chemical Inc filed Critical Harima Chemical Inc
Priority to JP63257669A priority Critical patent/JP2878694B2/en
Publication of JPH02103247A publication Critical patent/JPH02103247A/en
Application granted granted Critical
Publication of JP2878694B2 publication Critical patent/JP2878694B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)
  • Polymerisation Methods In General (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Abstract

PURPOSE:To obtain an ethylene-propylene rubber composition having excellent vulcanization adhesively between vulcanized rubber and unvulcanized rubber and remarkably improved water and moisture-resistance of adhesively especially in a highly humid state by compounding a specific amount of a hydrophobic macromonomer to an ethylene-propylene rubber. CONSTITUTION:The objective composition is produced by compounding 100 pts.wt. of an ethylene-propylene rubber with 0.1-50 pts.wt. (preferably 3-20 pts.wt.) of a hydrophobic macromonomer [a hydrophobic monomer having high molecular weight (number-average molecular weight of 1,000-20,000) and having a polymerizable chain].

Description

【発明の詳細な説明】 産業上の利用分野 本発明は加硫接着性が改良されたエチレン・プロピレン
系ゴム組成物に関するものである。さらに詳しくは、自
動車用部品や工業用途に使用されるエチレン・プロピレ
ン共重合ゴム(以下EPRと略称する)又はエチレン・
プロピレン・非共役ジエン三元共重合ゴム(以下EPD
Mと略称する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an ethylene-propylene rubber composition with improved vulcanization adhesion. More specifically, ethylene/propylene copolymer rubber (hereinafter abbreviated as EPR) or ethylene/propylene copolymer rubber used for automobile parts and industrial purposes is
Propylene/non-conjugated diene terpolymer rubber (EPD)
It is abbreviated as M.

またEPRとEPDMとを総称してエチレン・プロピレ
ン系ゴムと言い、これをEP系ゴムと略称する)に疎水
性マクロモノマーを含有する、耐水■湿接着性の改良の
改良されたEP系ゴム組成杓に関するものである。
In addition, EPR and EPDM are collectively referred to as ethylene-propylene rubber, and this is abbreviated as EP rubber), which contains a hydrophobic macromonomer, and is an improved EP rubber composition with improved water resistance and wet adhesion. It's about the ladle.

従来の技術 従来EP系ゴムの接着は、未加硫ゴム同士は容易に接着
することができが、加硫ゴムと未加硫ゴムとの接着や、
加硫ゴム同士の接着は、極めて困難である。
Conventional technology When adhering conventional EP rubber, unvulcanized rubbers can be easily adhered to each other, but adhesion between vulcanized rubber and unvulcanized rubber,
Adhesion between vulcanized rubbers is extremely difficult.

一/12にEP系ゴムの加硫ゴムと未加硫ゴムとを接着
する方法としては、加硫ゴムの表面をパフ処理し、その
処理面に未加硫ゴムを重ねて加硫接着する方法や、BP
系ゴム組成物中にアルキルフェノール樹脂を含有させて
加硫接着する方法等が知られている。
1/12 A method for bonding vulcanized EP rubber and unvulcanized rubber is to puff the surface of the vulcanized rubber, overlap the unvulcanized rubber on the treated surface, and vulcanize and bond. Ya, BP
A method of vulcanization bonding by incorporating an alkylphenol resin into a rubber composition is known.

また加硫ゴム同士を接着する手段としては、その加硫ゴ
ムの間に未加硫ゴムを挾んで加硫接着することが行われ
ている。この場合、前述の加硫ゴムと未加硫ゴムとの接
着の場合と同様に、パフ処理やアルキルフェノール樹脂
の配合等の手段が使用される。またシアノアクリレート
、イソシアネート、クロロブレン系等の接着剤を用いて
接着することも行われている。
Moreover, as a means for bonding vulcanized rubbers together, unvulcanized rubber is sandwiched between the vulcanized rubbers and vulcanized and bonded. In this case, as in the case of adhesion between vulcanized rubber and unvulcanized rubber described above, means such as puffing and blending of an alkylphenol resin are used. Additionally, bonding is also carried out using cyanoacrylate, isocyanate, chloroprene adhesives, and the like.

発明が解決しようとする問題点 しかしながら前記従来の方法は、それぞれ問題点を有し
ている。加硫ゴムの表面をパフ処理するのは作業性に劣
り、またアルキルフェノール樹脂を含有する方法では、
湿度か高い場合に耐水・耐;易接着性が劣る。さらに接
着剤により接着する方法では、シアノアクリレート系接
着剤は接着力は良好であるものの接着部が硬くなり、ク
ロロプレン系接着剤は接着力が弱い。
Problems to be Solved by the Invention However, each of the above-mentioned conventional methods has its own problems. Puffing the surface of vulcanized rubber has poor workability, and methods involving alkylphenol resins
Water resistance and resistance when humidity is high; adhesive properties are poor. Furthermore, in the method of bonding with adhesives, cyanoacrylate adhesives have good adhesive strength but the bonded portion becomes hard, and chloroprene adhesives have weak adhesive strength.

本発明はかかる事情に鑑みなされたものであって、加硫
ゴムに対して未加硫ゴムを接着するに際し、加硫接着性
に侵れ、高水準の初期接着力を示すと共に、長期に互っ
て耐水・耐湿接着性を有するゴム組成物を提供すること
を目的とするもので、ある。
The present invention has been developed in view of the above circumstances, and is designed to prevent the vulcanization adhesion from eroding when bonding unvulcanized rubber to vulcanized rubber, exhibit high initial adhesive strength, and maintain long-term compatibility. The purpose of this invention is to provide a rubber composition having water-resistant and moisture-resistant adhesive properties.

問題へを解決する手段 而して本発明は、エチレン・プロピレン系ゴム100重
量部に対し、疎水性マクロモノマーを0゜1を皿部以上
50重量部未満含有することを特徴とするものである。
As a means to solve the problem, the present invention is characterized in that the hydrophobic macromonomer is contained in a dish portion or more and less than 50 parts by weight of a hydrophobic macromonomer based on 100 parts by weight of ethylene-propylene rubber. .

本発明におけるEP系ゴムは、EPR及び、EPDMを
含む、EPRは、エチレンとプロピレンとよりなるゴム
状共重合体であり、まなEPDMは、エチレンと、プロ
ピレンと、ジシクロペンタジェン、エチリデンノルボル
ネン、1,4−へキサジエン、メチルノルボルネン、4
,7,8.9テトラヒドロインデン等の非共没ジエンと
の、王者を共重合させてなる、低不飽和ゴム状共重合体
である。
The EP rubber in the present invention includes EPR and EPDM. EPR is a rubbery copolymer made of ethylene and propylene, and EPDM is a rubbery copolymer made of ethylene, propylene, dicyclopentadiene, ethylidenenorbornene, 1,4-hexadiene, methylnorbornene, 4
, 7, 8.9 It is a low unsaturated rubbery copolymer obtained by copolymerizing the king with a non-encomprehended diene such as tetrahydroindene.

これらのEP系ゴムは、それ単独で使用することもでき
るが、これを主体として、他の天然ゴム又は、5BR1
IR,BR等の合成ゴムとブレンドして使用することら
可能である。
These EP rubbers can be used alone, but they can also be used as a main component with other natural rubbers or 5BR1.
It is possible to use it by blending it with synthetic rubbers such as IR and BR.

次に、本発明において使用される疎水性マクロモノマー
とは、分子鎖の片末端又は両末端に、重縮合し得る官能
基を有する比教的高分子X(数平均分子量で1000〜
20000)の、疎水性モノマーを言う。
Next, the hydrophobic macromonomer used in the present invention refers to a religious polymer X (number average molecular weight of 1,000 to 1,000
20,000) is a hydrophobic monomer.

この疎水性マクロモノマーの骨格構造としては、ビニル
重合性モノマーの重合体骨格が適当である6その具体例
としては、酢酸ビニル、スチレン、スチレン誘導体、メ
タクリル酸メチル、アクリル酸エステル、メタアクリロ
ニトリル、N−ビニル化合物等のモノマーの重合体が挙
げられる。またこれらの重合体は、モノマーを単独で重
合したものであってもよく、二種以上のものを共重合し
たものであってもよい。
As the skeleton structure of this hydrophobic macromonomer, a polymer skeleton of a vinyl polymerizable monomer is suitable.6 Specific examples thereof include vinyl acetate, styrene, styrene derivatives, methyl methacrylate, acrylic acid ester, methacrylonitrile, N - Polymers of monomers such as vinyl compounds. Moreover, these polymers may be those obtained by polymerizing a single monomer, or may be those obtained by copolymerizing two or more types of monomers.

また当該疎水性マクロモノマーの末端官能基としては、
アクリロイルオキシ基、メタクリロイル基、アクリロイ
ル基、スチリル基等のビニル重合性基又は、ジカルボキ
シル基、カルボキシル基、ジヒドロキジル基、ヒドロカ
シル基等が適用される。
In addition, the terminal functional group of the hydrophobic macromonomer is as follows:
Vinyl polymerizable groups such as acryloyloxy, methacryloyl, acryloyl, and styryl groups, dicarboxyl, carboxyl, dihydroxyl, and hydrocasyl groups are applicable.

この疎水性マクロモノマーを製造する方法としては、導
入したい末端官能基に対応する連鎖移動剤の存在下で、
骨格を構成すべきラジカル重合性モノマーを重合させて
、片末端に前記官能基を有する疎水性マクロモノマーを
得る方法を挙げることができる。
The method for producing this hydrophobic macromonomer is as follows: in the presence of a chain transfer agent corresponding to the terminal functional group to be introduced.
A method for obtaining a hydrophobic macromonomer having the above-mentioned functional group at one end by polymerizing a radically polymerizable monomer to constitute a skeleton can be mentioned.

重合の方法としては、従来公知のラジカル重合開始剤の
存在の下に、溶液重合法、バルク重合法、エマルジョン
重合法、!賢濁重合法等の方法で反応させればよいが、
反応の簡便さ等から、)容液重合法が好適である。
Polymerization methods include solution polymerization, bulk polymerization, emulsion polymerization, etc. in the presence of conventionally known radical polymerization initiators. The reaction may be carried out using a method such as a cloudy polymerization method, but
In view of the simplicity of the reaction, etc., the liquid polymerization method is preferred.

本発明で使用される疎水性マクロモノマーの量は、EP
系ゴム100重量部に対して、0.1重量部以上50重
量部未満とするのか適当である。
The amount of hydrophobic macromonomer used in the present invention is
It is appropriate to set the amount to 0.1 parts by weight or more and less than 50 parts by weight based on 100 parts by weight of the rubber.

さらに好ましくは、3重量部以上20重量部未満とする
のが良い。3重量部未満では本発明の効果が乏しく、ま
た20重量部以上添加しても、それに見合う顕著な効果
が見られない。しかしながら0.1重量部以上添加して
いれば、乏しいながらも一応の効果が見られる。また5
0重量部未満の量は添加可能であるが、それ以上添加す
ると、EP系ゴムとしての物性に悪影響を及ぼす可能性
があり、好ましくない。
More preferably, the amount is 3 parts by weight or more and less than 20 parts by weight. If it is less than 3 parts by weight, the effect of the present invention will be poor, and even if it is added in excess of 20 parts by weight, no correspondingly significant effect will be seen. However, if 0.1 part by weight or more is added, some effect can be seen, although it is poor. Also 5
Although it can be added in an amount of less than 0 parts by weight, adding more than that may have an adverse effect on the physical properties of the EP rubber, which is not preferable.

本発明のEP系ゴム組成物は、必要に応じて通常用いら
れるゴムの加硫用配合剤、無11(充填剤、軟化剤、そ
の曲の配合剤を、適宜配合することができる。
The EP rubber composition of the present invention may optionally contain commonly used rubber vulcanization compounding agents, fillers, softeners, and other compounding agents.

配合剤の例としては、パーオキサイド類、硫黄、フェノ
ール樹脂、金属酸化物等の加硫剤、テトラメチルチウラ
J2ジスルフィド、ジペンタンメチレンチウラムテトラ
スルフィド等のチウラム系加硫促進剤、2−メルカプト
ベンゾチアゾール等のチアゾール系加硫促進剤、カーボ
ンブラック、含水硅酸、炭酸カルシウム、クレー等の無
機充填剤、プロセスオイル等の軟化剤などを挙げること
かできる。
Examples of compounding agents include peroxides, sulfur, phenolic resins, vulcanizing agents such as metal oxides, thiuram vulcanization accelerators such as tetramethylthiura J2 disulfide, dipentane methylenethiuram tetrasulfide, and 2-mercaptobenzo. Examples include thiazole-based vulcanization accelerators such as thiazole, inorganic fillers such as carbon black, hydrated silicic acid, calcium carbonate, and clay, and softeners such as process oil.

本発明のEP系ゴム組成物は、EP系ゴムと配合剤との
混練物中に、疎水性マクロモノマーを添加することによ
り、未加硫ゴム組成物を得る。EP系ゴムに疎水性マク
ロモノマーを添加する方法としては、オープンロール、
ボールミル、バンバJ−ミキサー、ニーダ−等を用いて
、公知の方法で配合することができる。
The EP rubber composition of the present invention is obtained by adding a hydrophobic macromonomer to a kneaded mixture of EP rubber and a compounding agent to obtain an unvulcanized rubber composition. Methods for adding hydrophobic macromonomers to EP rubber include open roll,
They can be blended by a known method using a ball mill, Bamba J-mixer, kneader, or the like.

また、EP系ゴムに疎水性マクロモノマーを含有せしめ
る池の方法として、EP系ゴムを溶液重合するに際し、
疎水性モノマーを非共役ジエンにグラフト重合させて導
入することもできる9本発明のEP系ゴム組成物は、こ
れを未加硫ゴムとして1吏用し、他の加硫ゴムに対して
加硫接着することもでき、また加硫ゴムとして1重用し
、これに未加硫ゴムを加硫接着することもできる。すな
わぢ未加硫ゴムと加硫ゴムとを加硫接着するに際し、本
発明をその未加硫ゴムとしても加硫ゴムとしても使用す
ることができ、その両者に本発明を1吏川することもて
′きる。
In addition, as a method for incorporating hydrophobic macromonomers into EP rubber, when solution polymerizing EP rubber,
A hydrophobic monomer can also be introduced by graft polymerization to a non-conjugated diene.9 The EP-based rubber composition of the present invention is used once as an unvulcanized rubber, and then vulcanized with another vulcanized rubber. It can be bonded, or it can be used as a single layer of vulcanized rubber and unvulcanized rubber can be vulcanized and bonded thereto. In other words, when vulcanizing and adhering unvulcanized rubber and vulcanized rubber, the present invention can be used as both the unvulcanized rubber and the vulcanized rubber, and the present invention applies to both. I can't stand it.

未加硫ゴムと加硫ゴl\とのいずれかに本発明を使用し
ない場合には、従来公知の適宜の組成物を1史用すれば
よい。
If the present invention is not used for either unvulcanized rubber or vulcanized rubber, any conventionally known appropriate composition may be used.

実施例 以下本発明の詳細な説明する。Example The present invention will be explained in detail below.

疎水性マクロモノマーの製造 マク17モノマー1 メタクリル酸メチルマクロモノマ
ー メタクリル酸メチル(以下MMAと略す)150重量部
、メチルイソブチルケトン300重量部、アゾビスイソ
ブチロニトリル(以下AIBNと略す)08重量部、3
−メルカプトプロピオン酸1.06重量部をカラスフラ
スコに仕込み、窒素置換して(rl、?品を80°Cに
まて゛カロ1品昇ン品した。そして液温を80°Cに維
持しながら、MMA350重量部、AlBN2.0重量
部、3−メルカプトプロピオン酸4.5重量部の混合液
を、2時間かけて連続滴下しな。
Production of hydrophobic macromonomer Mac 17 Monomer 1 Methyl methacrylate macromonomer Methyl methacrylate (hereinafter abbreviated as MMA) 150 parts by weight, methyl isobutyl ketone 300 parts by weight, azobisisobutyronitrile (hereinafter abbreviated as AIBN) 08 parts by weight ,3
- 1.06 parts by weight of mercaptopropionic acid was charged into a glass flask, and the atmosphere was replaced with nitrogen (rl, ?). A mixed solution of 350 parts by weight of MMA, 2.0 parts by weight of AlBN, and 4.5 parts by weight of 3-mercaptopropionic acid was continuously added dropwise over 2 hours.

滴下後さらに同温度で4時間反応させた後、メタクリル
酸りリシジル9.25重量部、パイトロキノンモノメチ
ルエーテル0.17重量部及び、テ1〜ラブチルアンモ
ニウムブロマイド4.25重量部を添加し、加熱昇温し
て90°Cで8時間反応させた。
After the dropwise addition, the mixture was further reacted at the same temperature for 4 hours, and then 9.25 parts by weight of lysidyl methacrylate, 0.17 parts by weight of pytroquinone monomethyl ether, and 4.25 parts by weight of Te1-butylammonium bromide were added. The temperature was raised and the mixture was reacted at 90°C for 8 hours.

得られた反応液100重量部をメタノール100重量部
中に徐々に投入して、MMAマクロモノマーを析出さぜ
、その析出物と溶液とを分離しな。
100 parts by weight of the obtained reaction solution was gradually poured into 100 parts by weight of methanol to precipitate the MMA macromonomer, and the precipitate was separated from the solution.

分離したM M Aマクロモノマーを85°Cで真空乾
燥して、精製された固形IVI M Aマクロモノマー
を得た。
The separated M M A macromonomer was vacuum dried at 85°C to obtain a purified solid IVI M A macromonomer.

マクロモノマー2 末端ジカルボン酸型MMAマクロモ
ノマー MMA100重、置部、チオリンゴ酸3重量部、AlB
N6.6重量部、メチルエチルケトン100重量部を仕
込み、窒素置換して液温を75°Cに力11熱昇i品し
た。そしてン5i品を75°Cに維持しつつ、〜IMA
100重量部、チオリンゴ酸9重量部、AlBN6.6
重量部、メチルエチルゲトン7o重量部、エタノール3
0重量部の混合液を3時間かけて連続滴下した。
Macromonomer 2 Terminal dicarboxylic acid type MMA macromonomer 100 parts by weight of MMA, 3 parts by weight of thiomalic acid, AlB
6.6 parts by weight of N and 100 parts by weight of methyl ethyl ketone were charged, the atmosphere was replaced with nitrogen, and the liquid temperature was raised to 75°C. Then, while maintaining the N5i product at 75°C, ~IMA
100 parts by weight, 9 parts by weight of thiomalic acid, AlBN6.6
Parts by weight, 7 parts by weight of methyl ethyl getone, 3 parts by weight of ethanol
0 parts by weight of the mixed solution was continuously added dropwise over 3 hours.

滴下後さらに5時間反応させて、得られた反応/^10
0重量部をメタノール100重量部中に除々に投入し、
ジカルボン酸型MMAマクロモノマーを析出させ、析出
物と溶液とを分離した。分離した析出物を80°Cで真
空乾燥し、精製された固形の末端ジカルボン酸型MMA
マクロモノマーを得た。
After the dropwise addition, the reaction was further carried out for 5 hours, resulting in the reaction/^10
Gradually add 0 parts by weight to 100 parts by weight of methanol,
The dicarboxylic acid type MMA macromonomer was precipitated, and the precipitate and the solution were separated. The separated precipitate was vacuum dried at 80°C to obtain purified solid terminal dicarboxylic acid type MMA.
A macromonomer was obtained.

マクロモノマー3 末端ジカルボン酸型ブチルアクリレ
ートマクロモノマー ローブチルアクリレート120重量部、チオリンゴ酸5
.64重量部、AlBN4.62重量部、I・ルエン4
00重量部を仕込み、窒素置換して1ril。
Macromonomer 3 120 parts by weight of terminal dicarboxylic acid type butyl acrylate macromonomer robyl acrylate, thiomalic acid 5
.. 64 parts by weight, AlBN 4.62 parts by weight, I. Luene 4
00 parts by weight was added, and the atmosphere was replaced with nitrogen to give 1 ril.

温を85°Cに加熱昇温し、その温度に維持しつつ8時
間反応させた。
The temperature was raised to 85°C, and the reaction was carried out for 8 hours while maintaining this temperature.

この反応液を85°Cで真空¥:、燥し、粘性7夜体の
末端ジカルボン酸型ブチルアクリレートマクロモノマー
を得た。
The reaction solution was dried in vacuo at 85°C to obtain a viscous hepta-terminated dicarboxylic acid-terminated butyl acrylate macromonomer.

未加硫ゴムシー1〜の製造 表1に示す配合により、EP系ゴム組組成を混練し、未
加硫ゴムシートを製造した。
Production of unvulcanized rubber sheets 1 to 1 EP rubber compositions were kneaded according to the formulations shown in Table 1 to produce unvulcanized rubber sheets.

加硫ゴムシートの製造 先の未加硫ゴムシートを、加硫モールド(15QIII
IOXIうQ InIIIX 21Hn厚)を使用して
、180”Cで、150に!I々のプレス圧にて、10
分間プレスし、加硫ゴムシートを得た。
The unvulcanized rubber sheet from the manufacturer of the vulcanized rubber sheet is placed in a vulcanization mold (15QIII
IOXI UQ InIIIX 21Hn thickness) at 180"C, to 150! At various press pressures, 10
The mixture was pressed for a minute to obtain a vulcanized rubber sheet.

基礎1勿性の測定 、JIS  K−6301に準じて、加硫ゴムシー1〜
の基礎物性を測定した。
Measurement of basic 1 elasticity, according to JIS K-6301, vulcanized rubber seams 1~
The basic physical properties of were measured.

加げ【ゴムと未加硫ゴムとの加硫接着 加硫1日後の加硫ゴムシート及び、加硫後7日間25°
C×85%用対湿度のデシケータ−中に放置した加硫ゴ
ムシートについて、それぞれ加硫ゴムシートをはゾ半分
に裁断し、それを前記加硫モールドに入れ、加硫モール
ドにおける残りのはゾ半分の空所に、同一配合の未加硫
ゴムシートを入れ、前記加硫ゴムシーI・の製造と同一
条件で加熱加圧し、未加硫ゴムシートを加硫すると共に
、加硫ゴムシートの縁に加硫接着した。
Curing [Vulcanized adhesive between rubber and unvulcanized rubber Vulcanized rubber sheet after 1 day of vulcanization and 25° for 7 days after vulcanization
For the vulcanized rubber sheets left in a desiccator with a humidity of 85%, cut each vulcanized rubber sheet in half and place it in the vulcanization mold. An unvulcanized rubber sheet of the same composition is placed in the half space, and heated and pressurized under the same conditions as in the production of the vulcanized rubber sheet I to vulcanize the unvulcanized rubber sheet, and at the same time cure the edges of the vulcanized rubber sheet. It was vulcanized and adhered to.

また同様にして、実施例1の配合による加硫ゴムと比較
例1の配合による未加硫ゴムとの組合わせ及び、比較例
1の配合による加硫ゴムと実施例1の配合による未加硫
ゴムとの組合わせについても加硫接着をした。
In addition, in the same manner, vulcanized rubber blended in Example 1 and unvulcanized rubber blended in Comparative Example 1 were combined, and vulcanized rubber blended in Comparative Example 1 and unvulcanized rubber blended in Example 1 were combined. Vulcanized adhesive was also used in combination with rubber.

接着強度の測定 加硫接着したゴムシートを、接着面を中央にしてダンベ
ル3号にて試験片を打抜き、JIS  Iぐ6301の
引張り試!狭に準じて引張り、接着面の強度を測定した
Measurement of adhesive strength A test piece was punched out using a dumbbell No. 3 from the vulcanized rubber sheet with the adhesive side in the center, and subjected to a JIS I6301 tensile test! The strength of the adhesive surface was measured by pulling according to the method.

各実施例及び比較例についての試験結果を表1に示す。Table 1 shows the test results for each example and comparative example.

発明の効果 本発明によれば、EP系ゴム組成物中に疎水性マクロモ
ノマーを含有しているので、加硫ゴムと未加硫ゴムとの
加硫接着性に優れており、特に高湿度状fふでの耐水・
耐湿接着性が大[11に改善される。
Effects of the Invention According to the present invention, since the EP rubber composition contains a hydrophobic macromonomer, it has excellent vulcanization adhesion between vulcanized rubber and unvulcanized rubber, especially in high humidity conditions. Water resistance in F-hood
Moisture-resistant adhesion is greatly improved to [11].

実施例1〜3と比較例1とを比較すると、本発明の実施
例が接着強度が大きいことが判る。また接着性を改善す
るためにアルキルフェノールを含有する比較例2と比べ
ると、1日後の接着強度においては大きな差は認められ
ないが、高湿度雰囲気中に7日間放置した後の接着強度
において本発明の実施例が優れており、本発明の組成物
が湿度による影響を受けに<<、耐水・耐湿接着性に1
(れていることか理解できる。
Comparing Examples 1 to 3 with Comparative Example 1, it can be seen that the examples of the present invention have higher adhesive strength. Also, compared to Comparative Example 2, which contains alkylphenol to improve adhesion, there is no significant difference in adhesive strength after one day, but the adhesive strength of the present invention after being left in a high humidity atmosphere for 7 days is Examples of the above are excellent, and the composition of the present invention is not affected by humidity and has a water resistance and moisture resistance of 1.
(I can understand why.

実施例4〜7により、疎水性マクロモノマーの);ト加
景による影響を調べた。これによると、1重量部未満で
は良好な接着強度が得られず、また20重量部以上では
、過f1の添加に見合う順著な接着性の向上が認められ
ない。
In Examples 4 to 7, the influence of the addition of hydrophobic macromonomers was investigated. According to this, if less than 1 part by weight, good adhesive strength cannot be obtained, and if it is more than 20 parts by weight, no significant improvement in adhesiveness commensurate with the addition of excess f1 is observed.

次に実施例8,9及び比較例3.4により加硫剤による
影響を調べたが、本発明は硫黄加硫においても、またペ
ルオキシド加硫においても同様の効果を示すことが判る
Next, the influence of the vulcanizing agent was investigated using Examples 8 and 9 and Comparative Examples 3 and 4, and it was found that the present invention exhibits similar effects in both sulfur vulcanization and peroxide vulcanization.

加硫ゴムと未加硫ゴムとのいずれか一方に本発明のゴム
組成物を使用した場合における、他のゴム組成物との加
硫接着性を試験し、その結果を表2に示す。
When the rubber composition of the present invention was used as either vulcanized rubber or unvulcanized rubber, the vulcanization adhesion with other rubber compositions was tested, and the results are shown in Table 2.

表2 この結果によれば、加硫ゴムと未加硫ゴムとの両方が実
施例1の場合に比べると、接着強度が若干劣ってはいる
ものの、両者が比較例1のものに比べると優れており、
両者が共に本発明の組成1勿であることか好ましいが、
一方だけであっても充分に有効であることが理解できる
Table 2 According to the results, although the adhesive strength of both vulcanized rubber and unvulcanized rubber is slightly inferior to that of Example 1, both are superior to that of Comparative Example 1. and
It is preferable that both of them are composition 1 of the present invention,
It can be understood that even if only one is used, it is sufficiently effective.

また本発明は、EP系ゴム組成物を混練する際に疎水性
マクロモノマーを配合することにより得ることができる
ので、作業が簡11iであり、接着力増強のためのパフ
処理等の特別の作業を必要としない。
In addition, the present invention can be obtained by blending a hydrophobic macromonomer when kneading the EP rubber composition, so the work is simple and requires special work such as puffing to enhance adhesive strength. does not require.

なお以上の説明においては、EP系ゴム組成物の、未加
硫ゴムと加硫ゴムとの接着に関してのみ述べたが、加硫
ゴムの間に未加硫ゴムを挾んで加硫接着することによる
加硫ゴム同士の接着に関しても、全く同様に適用するこ
とができることは言うまでもない。
In the above explanation, only the adhesion between the unvulcanized rubber and the vulcanized rubber of the EP rubber composition was described, but it is possible to bond the unvulcanized rubber by sandwiching the unvulcanized rubber between the vulcanized rubbers and bonding by vulcanization. It goes without saying that the same method can be applied to adhesion between vulcanized rubbers.

Claims (1)

【特許請求の範囲】[Claims] 1 エチレン・プロピレン系ゴム100重量部に対し、
疎水性マクロモノマーを0.1重量部以上50重量部未
満含有することを特徴とする、エチレン・プロピレン系
ゴム組成物
1 For 100 parts by weight of ethylene/propylene rubber,
An ethylene/propylene rubber composition containing 0.1 parts by weight or more and less than 50 parts by weight of a hydrophobic macromonomer.
JP63257669A 1988-10-13 1988-10-13 Ethylene / propylene rubber composition Expired - Lifetime JP2878694B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63257669A JP2878694B2 (en) 1988-10-13 1988-10-13 Ethylene / propylene rubber composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63257669A JP2878694B2 (en) 1988-10-13 1988-10-13 Ethylene / propylene rubber composition

Publications (2)

Publication Number Publication Date
JPH02103247A true JPH02103247A (en) 1990-04-16
JP2878694B2 JP2878694B2 (en) 1999-04-05

Family

ID=17309460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63257669A Expired - Lifetime JP2878694B2 (en) 1988-10-13 1988-10-13 Ethylene / propylene rubber composition

Country Status (1)

Country Link
JP (1) JP2878694B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009222469A (en) * 2008-03-14 2009-10-01 Bridgestone Corp Conveyor belt and method of manufacturing the same
JP2014084363A (en) * 2012-10-22 2014-05-12 Kaneka Corp Rubber composition and pneumatic tire using the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4848543A (en) * 1971-10-25 1973-07-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4848543A (en) * 1971-10-25 1973-07-10

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009222469A (en) * 2008-03-14 2009-10-01 Bridgestone Corp Conveyor belt and method of manufacturing the same
JP2014084363A (en) * 2012-10-22 2014-05-12 Kaneka Corp Rubber composition and pneumatic tire using the same

Also Published As

Publication number Publication date
JP2878694B2 (en) 1999-04-05

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