JPH03139545A - Chlorosulfonated polyethylene composition - Google Patents

Chlorosulfonated polyethylene composition

Info

Publication number
JPH03139545A
JPH03139545A JP27594989A JP27594989A JPH03139545A JP H03139545 A JPH03139545 A JP H03139545A JP 27594989 A JP27594989 A JP 27594989A JP 27594989 A JP27594989 A JP 27594989A JP H03139545 A JPH03139545 A JP H03139545A
Authority
JP
Japan
Prior art keywords
chlorosulfonated polyethylene
alicyclic epoxy
pts
epoxy compound
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.)
Pending
Application number
JP27594989A
Other languages
Japanese (ja)
Inventor
Kosuke Watanabe
浩佑 渡邉
Toshiyuki Kato
敏幸 加藤
Masao Koga
優夫 古賀
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP27594989A priority Critical patent/JPH03139545A/en
Publication of JPH03139545A publication Critical patent/JPH03139545A/en
Pending legal-status Critical Current

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE:To improve the fatigue characteristics without adversely affecting the compression set by compounding a chlorosulfonated polyethylene with an alicyclic epoxy compd. CONSTITUTION:A chlorosulfonated polyethylene compsn., useful for an automotive boot, belt, hose, vibration insulating material, etc., is prepd. by compounding: 100 pts.wt. chlorosulfonated polyethylene, pref. contg. 23-37wt.% chlorine and obtd. by chlorosulfonating a linear low density polyethylene having a density of 0.925g/cc or lower; with 0.5 pts.wt. or higher, pref. 1-10 pts.wt. alicyclic epoxy compd. (e.g. 3,4-epoxycyclohexylmethyl-3',4'-epoxycyclohexanecarboxylate).

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、加硫物の物性、とりわけ疲労特性の優れたク
ロロスルホン化ポリエチレン組成物に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a chlorosulfonated polyethylene composition that has excellent physical properties of a vulcanizate, particularly excellent fatigue properties.

〔従来の技術〕[Conventional technology]

クロロスルホン化ポリエチレン(以下、しばしばrC3
MJと略称する)は耐候性、耐オゾン性、耐熱性、耐油
性、耐化学薬品性及び着色性等にすぐれたエラストマー
素材として知られており、自動車用各種ホースカバー、
電線被覆、耐酸ホース、引布、ガスホースカバー、ブー
ツ、ベルト、シート、塗料、溶液コーティング及びルー
フィング材等、広い分野で使用されている。しかし、最
近は自動車産業をはじめとして、その要求特性はよりき
びしくなってきており、様々な改良が望まれている。な
かでも、耐屈曲亀裂成長性等に代表される機械的疲労性
についての改良の要求は強いものがある。
Chlorosulfonated polyethylene (hereinafter often referred to as rC3
MJ) is known as an elastomer material with excellent weather resistance, ozone resistance, heat resistance, oil resistance, chemical resistance, and coloring property, and is used for various hose covers for automobiles,
It is used in a wide range of fields, including electric wire coatings, acid-resistant hoses, canvas, gas hose covers, boots, belts, sheets, paints, solution coatings, and roofing materials. However, recently, the required characteristics have become more stringent, including in the automobile industry, and various improvements are desired. Among these, there is a strong demand for improvement in mechanical fatigue properties such as flex crack growth resistance.

しかしながら、C3Mは、天然ゴム、イソプレンゴム、
クロロプレンゴム等のジエン系ゴムと比較した場合、−
殻内に耐屈曲亀裂成長性に劣る欠点を有している。
However, C3M is natural rubber, isoprene rubber,
When compared with diene rubber such as chloroprene rubber, -
It has the disadvantage of poor resistance to flex crack growth within the shell.

従来よりC3Mの疲労性改良を目的として多くの手法が
提案されている。−例としては、可塑剤の添加があげら
れる。ナフテン系、パラフィン系等の石油系、あるいは
植物油系オイルを加えることで、−aにゴムに使われて
いるカーボンブラック等の充填剤の分散が良くなり、疲
労性が良くなることが知られている。しかし、C3Mに
可塑剤を添加する方法は、少量の場合には効果が認めら
れず、また多量に使用すると加硫物の強度や硬度が低下
する。
Many methods have been proposed for the purpose of improving the fatigue properties of C3M. - Examples include the addition of plasticizers. It is known that adding petroleum-based oils such as naphthene-based or paraffin-based oils, or vegetable oil-based oils to -a improves the dispersion of fillers such as carbon black used in rubber and improves fatigue properties. There is. However, the method of adding a plasticizer to C3M is not effective when a small amount is used, and the strength and hardness of the vulcanizate decreases when a large amount is used.

一方、米国特許筒3.147.315号明細書には、C
3Mの製造工程(乾燥工程等)での熱履歴による劣化を
防止する目的で、ビスフェノールAジグリシジルエーテ
ル等のエポキシ化合物を添加したC5M&Il成物が開
示されている0本発明者らの検討によれば、上記エポキ
シ化合物をC3Mに添加することにより、加硫物の屈曲
亀裂成長性を改良できる。しかしながら、この方法では
、他の物性、特に圧縮永久歪を増大させる欠点を有して
いる。
On the other hand, in U.S. Patent No. 3.147.315, C.
A C5M&Il composition is disclosed in which an epoxy compound such as bisphenol A diglycidyl ether is added for the purpose of preventing deterioration due to heat history during the manufacturing process (drying process, etc.) of 3M. According to the study by the present inventors, For example, by adding the above-mentioned epoxy compound to C3M, the flexural crack growth properties of the vulcanizate can be improved. However, this method has the disadvantage of increasing other physical properties, particularly compression set.

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

本発明の目的は、高い耐疲労特性を持ち、かつ圧縮永久
歪の良好なC3MM1成物を提供することにある。
An object of the present invention is to provide a C3MM1 composition having high fatigue resistance and good compression set.

〔課題を解決するための手段及び作用〕本発明者らは、
鋭意研究を行った結果、C3Mに特定のエポキシ化合物
を含有させることによって、圧縮永久歪を悪化させるこ
となく耐疲労性を著しく改良できることを見い出し、本
発明に到達した。
[Means and effects for solving the problem] The present inventors,
As a result of extensive research, it was discovered that by incorporating a specific epoxy compound into C3M, fatigue resistance could be significantly improved without worsening compression set, and the present invention was achieved.

即ち、本発明は、クロロスルホン化ポリエチレン100
重量部に対して、脂環式エポキシ化合物を少なくとも0
.5重量部含有することを特徴とするクロロスルホン化
ポリエチレン組成物に関するものである。
That is, the present invention provides chlorosulfonated polyethylene 100
Based on the weight part, at least 0 of the alicyclic epoxy compound
.. The present invention relates to a chlorosulfonated polyethylene composition containing 5 parts by weight.

以下に本発明を更に説明する。The invention will be further explained below.

本発明で用いるクロロスルホン化ポリエチレン系エラス
トマーは線状高密度ポリエチレン(II D P E 
)、線状低密度ポリエチレン(LLDr’ESVLDP
tり、分岐状低密度ポリエチレン(LDPR)等密度0
.88 g /cc〜0.97 g /cc、分子量1
万〜80万程度のエチレン単独重合体もしくはエチレン
とエチレンと共重合可能な単量体(たとえばプロピレン
、l−ブテン、4−メチルペンテン−11等のα−オレ
フィン又は酢酸ビニル等)との共重合体(ポリエチレン
系重合体)をクロロスルホン化させて得られるものであ
る。クロロスルホン化反応は溶媒にポリエチレン系重合
体を溶解し、ラジカル触媒(たとえば2.2′−アゾビ
スイソブチロニトリル)の存在下に塩素及び亜硫酸ガス
及び/又は塩化スルフリルを反応させることにより実施
される0通常クロロスルホン化ポリエチレン系エラスト
マーは約20〜45重量%の塩素及び0.2〜260重
景%の硫黄を含有している。
The chlorosulfonated polyethylene elastomer used in the present invention is linear high-density polyethylene (II D P E
), linear low density polyethylene (LLDr'ESVLDP
Branched low density polyethylene (LDPR) equal density 0
.. 88 g/cc~0.97 g/cc, molecular weight 1
Copolymerization of ethylene homopolymer or ethylene with a monomer copolymerizable with ethylene (e.g., propylene, l-butene, α-olefin such as 4-methylpentene-11, or vinyl acetate) of approximately 800,000 to 800,000 It is obtained by chlorosulfonating a polymer (polyethylene polymer). The chlorosulfonation reaction is carried out by dissolving the polyethylene polymer in a solvent and reacting it with chlorine and sulfur dioxide gas and/or sulfuryl chloride in the presence of a radical catalyst (for example, 2,2'-azobisisobutyronitrile). Typical chlorosulfonated polyethylene elastomers contain about 20 to 45 weight percent chlorine and 0.2 to 260 weight percent sulfur.

特に、機械的強度と同時に低温特性及び動的疲労特性を
高度に要求する組成物の場合には密度0.925 g/
cc以下の線状低密度ポリエチレン(LLDPE、 V
LDPE)を原料とし、塩素量を23〜37重量%程度
とするのが好ましい。
In particular, in the case of compositions that require high mechanical strength as well as low temperature properties and dynamic fatigue properties, a density of 0.925 g/
Linear low density polyethylene (LLDPE, V
LDPE) is used as the raw material, and the amount of chlorine is preferably about 23 to 37% by weight.

次に、本発明で用いられる脂環式エポキシ化合物として
は、3,4−エポキシシクロヘキシルメチル−3,4−
エポキシシクロヘキサンカルボキシレート、3−(3,
4−エポキシシクロヘキシル)−8,9−エポキシ−2
,4−ジオキサスピロ(5,5)ウンデカン、ビス(3
,4−エポキシ−6−メチルシクロヘキシルメチル)ア
ジペート、ビス(3,4−エポキシシクロヘキシルメチ
ル)アジペート、シクロヘキシルメチル−3,4エポキ
シシクロヘキサンカルボキシレート、β−(3,4−エ
ポキシシクロヘキシル)エチルトリメトキシシラン等が
挙げられるが、これらに限定するものではない。また、
その添加方法としては、C3Mの製造工程で予め添加し
ても、あるいは他の配合剤と同様にC3Mのゴム配合工
程で添加してもよい。
Next, as the alicyclic epoxy compound used in the present invention, 3,4-epoxycyclohexylmethyl-3,4-
Epoxycyclohexane carboxylate, 3-(3,
4-epoxycyclohexyl)-8,9-epoxy-2
,4-dioxaspiro(5,5)undecane, bis(3
, 4-epoxy-6-methylcyclohexylmethyl)adipate, bis(3,4-epoxycyclohexylmethyl)adipate, cyclohexylmethyl-3,4epoxycyclohexanecarboxylate, β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane etc., but is not limited to these. Also,
As for its addition method, it may be added in advance during the manufacturing process of C3M, or it may be added during the rubber compounding process of C3M like other compounding agents.

脂環式エポキシ化合物の添加量としては、C5M100
重量部に対して0.5重量部以上、好ましくは1〜10
重量部の範囲である。脂環式エポキシ化合物の添加量が
0.5重量部未満の場合、疲労性が改良されず本発明の
目的を達成しない。また10重量部を越えて添加しても
疲労性はそれ以上に向上がなかなか望めない。
The amount of the alicyclic epoxy compound added is C5M100
0.5 parts by weight or more, preferably 1 to 10 parts by weight
Parts by weight range. If the amount of the alicyclic epoxy compound added is less than 0.5 parts by weight, fatigue properties will not be improved and the object of the present invention will not be achieved. Further, even if more than 10 parts by weight is added, it is difficult to expect any further improvement in fatigue properties.

また、本発明の組成物には、上記の必須成分のほかゴム
業界及び樹脂業界において一般に使用される各種配合剤
、例えば、ペンタエリトリトール、N、N”−m−フェ
ニレンビスマレイミド、テトラメチルチウラムジスルフ
ィド等の加硫剤や加硫促進剤、充填剤、補強剤、加工助
剤、可塑剤、老化防止剤、安定剤、顔料、難燃剤等を必
要に応じて選定、配合して用いることができる。
In addition to the above-mentioned essential components, the composition of the present invention also contains various compounding agents commonly used in the rubber and resin industries, such as pentaerythritol, N,N"-m-phenylene bismaleimide, and tetramethylthiuram disulfide. Vulcanizing agents, vulcanization accelerators, fillers, reinforcing agents, processing aids, plasticizers, anti-aging agents, stabilizers, pigments, flame retardants, etc. can be selected and blended as necessary. .

この時の配合方法としては、通常ポリマーの加工分野に
おいて用いられる任意の方法が適用できる。例えば、ミ
キシングロール、バンバリーミキサ−1各種ニーダー2
混練作用を有する押出機等が使用できる。
As the blending method at this time, any method commonly used in the field of polymer processing can be applied. For example, mixing rolls, Banbury mixer 1 various kneaders 2
An extruder or the like having a kneading function can be used.

〔実施例] 以下に実施例を示し、本発明についてさらに具体的に説
明するが、本発明はこれらの実施例のみに限定されるも
のではない。
[Example] The present invention will be described in more detail by referring to Examples below, but the present invention is not limited to these Examples.

実施例1〜3、比較例1〜3 線状低密度ポリエチレン(密度0.92 )を原料とし
て作製した塩素含有量30重景%、硫黄含有量1.1重
量%、生ゴムムーニー粘度70 (ML+。4.100
°C)のクロロスルホン化ポリエチレンに脂環式エポキ
シ化合物及びその他の配合剤を表1及び表2に示す割合
で配合した。配合操作はミキシングロールにて行い、表
1及び表2に示す種々の配合剤を逐次添加した。160
°C1で表2に示す時間だけプレス加硫して加硫物を得
た。
Examples 1 to 3, Comparative Examples 1 to 3 Raw rubber Mooney viscosity 70 (ML+ .4.100
A cycloaliphatic epoxy compound and other compounding agents were blended into chlorosulfonated polyethylene at a temperature of 10°C (°C) in the proportions shown in Tables 1 and 2. The blending operation was performed using a mixing roll, and the various blending agents shown in Tables 1 and 2 were successively added. 160
Press vulcanization was performed at 1 °C for the time shown in Table 2 to obtain a vulcanized product.

得られた加硫物について、常態物性、圧縮永久歪及び屈
曲亀裂成長性を試験し、表2に示す結果を得た。尚、常
態物性、圧縮永久歪及び屈曲亀裂成長性の測定は、JI
S K6301に準拠して行った。
The obtained vulcanizate was tested for normal physical properties, compression set, and flexural crack growth, and the results shown in Table 2 were obtained. In addition, measurements of normal physical properties, compression set, and flexural crack growth are conducted by JI
It was carried out in accordance with SK6301.

表2の実施例1〜3は、クロロスルホン化ポリエチレン
に対して脂環式エポキシ化合物を特許請求の範囲内の量
添加した場合である。比較例1は、脂環式エポキシ化合
物を添加しない場合、比較例2は脂環式エポキシ化合物
の添加量が0.5重量部未満の場合である。また、比較
例3は、脂環式でないエポキシ化合物を添加した場合で
ある。
Examples 1 to 3 in Table 2 are cases where an alicyclic epoxy compound was added in an amount within the claimed range to chlorosulfonated polyethylene. Comparative Example 1 is a case in which no alicyclic epoxy compound is added, and Comparative Example 2 is a case in which the amount of an alicyclic epoxy compound added is less than 0.5 parts by weight. Moreover, Comparative Example 3 is a case where a non-alicyclic epoxy compound was added.

表2の結果から明らかなように、本発明のC5M組成物
は、屈曲亀裂成長性、すなわち疲労性が極めて優れ、か
つ圧縮永久歪が良好であることが判る。
As is clear from the results in Table 2, it can be seen that the C5M composition of the present invention has extremely excellent flex crack growth properties, that is, fatigue properties, and good compression set.

表1゜ 配合処方 17東海カーボン■製(商品名)MAFジースト116
2ゝ 日本シリカ■製 (商品名)ニブシールVN33
)薬品名は表2参照 〔発明の効果〕 以上説明した様に、本発明のクロロスルホン化ポリエチ
レン組成物は、耐疲労性に優れており、各種工業用部品
等に用いられ、とりわけ自動車用ブーツ類、ベルト類、
ホース材、防振材等の耐久性を要求される用途に好適で
ある。
Table 1゜Mixing Prescription 17 Manufactured by Tokai Carbon ■ (Product name) MAF Giest 116
2. Made by Nippon Silica (Product name) Nibseal VN33
) For chemical names, see Table 2. [Effects of the Invention] As explained above, the chlorosulfonated polyethylene composition of the present invention has excellent fatigue resistance and is used for various industrial parts, especially automobile boots. types, belts,
Suitable for applications that require durability, such as hose materials and vibration isolating materials.

Claims (1)

【特許請求の範囲】[Claims]  クロロスルホン化ポリエチレン100重量部に対して
、少なくとも0.5重量部の脂環式エポキシ化合物を含
有することを特徴とするクロロスルホン化ポリエチレン
組成物。
A chlorosulfonated polyethylene composition comprising at least 0.5 parts by weight of an alicyclic epoxy compound based on 100 parts by weight of chlorosulfonated polyethylene.
JP27594989A 1989-10-25 1989-10-25 Chlorosulfonated polyethylene composition Pending JPH03139545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27594989A JPH03139545A (en) 1989-10-25 1989-10-25 Chlorosulfonated polyethylene composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27594989A JPH03139545A (en) 1989-10-25 1989-10-25 Chlorosulfonated polyethylene composition

Publications (1)

Publication Number Publication Date
JPH03139545A true JPH03139545A (en) 1991-06-13

Family

ID=17562671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27594989A Pending JPH03139545A (en) 1989-10-25 1989-10-25 Chlorosulfonated polyethylene composition

Country Status (1)

Country Link
JP (1) JPH03139545A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687701A1 (en) 1994-06-16 1995-12-20 Dow Corning Corporation Preparation of polydiorganosiloxane and sulfonated polyolefin blends
JP2018053235A (en) * 2016-09-26 2018-04-05 アキレス株式会社 Chlorosulfonated polyethylene rubber composition and chlorosulfonated polyethylene rubber coated fabric

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687701A1 (en) 1994-06-16 1995-12-20 Dow Corning Corporation Preparation of polydiorganosiloxane and sulfonated polyolefin blends
US5488087A (en) * 1994-06-16 1996-01-30 Dow Corning Corporation Preparation of polydiorganosiloxane and sulfonated polyolefin blends
JP2018053235A (en) * 2016-09-26 2018-04-05 アキレス株式会社 Chlorosulfonated polyethylene rubber composition and chlorosulfonated polyethylene rubber coated fabric

Similar Documents

Publication Publication Date Title
US5053450A (en) Elastomer compositions
JPH10237229A (en) Rubber composition
WO2003020806A1 (en) Epdm compounds for dynamic applications
JPH0699596B2 (en) Natural rubber-containing composition having improved tear strength
US4172939A (en) Vulcanizable ethylene/vinyl acetate/carbon monoxide terpolymers
CA1227597A (en) Sulfur vulcanizable polymer compositions
US4271052A (en) Carboxylated nitrile rubber vulcanizates
JPH07304902A (en) Natural rubber composition
EP0687708B1 (en) Improved heat and ozone resistant NBR/epichlorohydrin blends
US3846371A (en) Masterbatching elastomer blends
JPH03139545A (en) Chlorosulfonated polyethylene composition
US3943192A (en) Elastomeric blends
EP0068468B1 (en) Cis-1,4-polyisoprene rubber composition
JPH03139544A (en) Chlorosulfonated polyethylene composition
EP0306120B1 (en) Chlorosulfonated ethylene.alpha-olefin copolymer composition and process for the production thereof
US3635880A (en) Curable compositions for making high temperature stable cured -sh terminated polysulfide polymer
JPH10251514A (en) Rubber composition
RU2307850C1 (en) Ethylene/propylene/diene-based rubber compound
KR100315456B1 (en) Chloroprene rubber composition having good thermal resistance and abrasion resistance
JPS63312334A (en) Chlorosulfonated polyethylene elastomer composition
JPS5925830A (en) Automobile sealant
JPS6241245A (en) Vulcanized rubber composition
JPS5951926A (en) Rubber additive
JPH08302116A (en) Crosslinkable chlorosulfonated polyethylene composition
JPH03100035A (en) Chlorosulfonated polyethylene composition