JPS63110229A - Elastomer composition - Google Patents
Elastomer compositionInfo
- Publication number
- JPS63110229A JPS63110229A JP61256598A JP25659886A JPS63110229A JP S63110229 A JPS63110229 A JP S63110229A JP 61256598 A JP61256598 A JP 61256598A JP 25659886 A JP25659886 A JP 25659886A JP S63110229 A JPS63110229 A JP S63110229A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- olefin
- weight
- present
- alpha
- 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
- 229920001971 elastomer Polymers 0.000 title claims abstract description 28
- 239000000806 elastomer Substances 0.000 title claims abstract description 13
- 239000000203 mixture Substances 0.000 title claims abstract description 12
- 239000004711 α-olefin Substances 0.000 claims abstract description 18
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000005977 Ethylene Substances 0.000 claims abstract description 16
- 229920001038 ethylene copolymer Polymers 0.000 claims abstract description 16
- 239000005060 rubber Substances 0.000 claims abstract description 15
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims abstract description 13
- -1 acrylic ester Chemical class 0.000 claims abstract description 10
- 125000005395 methacrylic acid group Chemical group 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 4
- JHPBZFOKBAGZBL-UHFFFAOYSA-N (3-hydroxy-2,2,4-trimethylpentyl) 2-methylprop-2-enoate Chemical compound CC(C)C(O)C(C)(C)COC(=O)C(C)=C JHPBZFOKBAGZBL-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 150000008065 acid anhydrides Chemical class 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 3
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical class CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000012662 bulk polymerization Methods 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 125000002843 carboxylic acid group Chemical group 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 150000002148 esters Chemical group 0.000 description 2
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- OJOWICOBYCXEKR-APPZFPTMSA-N (1S,4R)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical group CC=C1C[C@@H]2C[C@@H]1C=C2 OJOWICOBYCXEKR-APPZFPTMSA-N 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
- WDQMWEYDKDCEHT-UHFFFAOYSA-N 2-ethylhexyl 2-methylprop-2-enoate Chemical compound CCCCC(CC)COC(=O)C(C)=C WDQMWEYDKDCEHT-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- NRTSLUOVGBFANI-UHFFFAOYSA-N bis(oxiran-2-ylmethyl) 2-methylidenebutanedioate Chemical compound C1OC1COC(=O)C(=C)CC(=O)OCC1CO1 NRTSLUOVGBFANI-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- JFHBKKGEVRVZPE-UHFFFAOYSA-N oxiran-2-ylmethyl 4-ethenylbenzoate Chemical compound C1=CC(C=C)=CC=C1C(=O)OCC1OC1 JFHBKKGEVRVZPE-UHFFFAOYSA-N 0.000 description 1
- RPQRDASANLAFCM-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate Chemical compound C=CC(=O)OCC1CO1 RPQRDASANLAFCM-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- SJMYWORNLPSJQO-UHFFFAOYSA-N tert-butyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C)(C)C SJMYWORNLPSJQO-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は架橋可能な耐油性エラストマー組成物に関する
もので、更に詳しくは、エチレンとアクリル酸エステル
もしくはメタクリル酸エステルとからなるエチレン系共
重合体とエチレンとα−オレフィンとからなるα−オレ
フィン系共重合体ゴムを特定の割合で配合した架橋可能
な耐油性エラストマーに関するものである。Detailed Description of the Invention <Industrial Application Field> The present invention relates to a crosslinkable oil-resistant elastomer composition, and more specifically to an ethylene copolymer composed of ethylene and an acrylic acid ester or a methacrylic acid ester. The present invention relates to a crosslinkable oil-resistant elastomer containing α-olefin copolymer rubber composed of ethylene, ethylene, and α-olefin in a specific ratio.
〈従来の技術〉
近年、自動車、家電、機械などの諸工業の著しい技術進
歩にともない、各種関連部品に使用されるゴム材料に要
求される特性も多岐にわたり、それに対応すべく種々の
特殊エラストマーが開発されつつあることは周知のとお
りである。<Conventional technology> In recent years, with remarkable technological advances in various industries such as automobiles, home appliances, and machinery, the characteristics required of rubber materials used in various related parts have become diverse, and various special elastomers have been developed to meet these requirements. As is well known, it is being developed.
このような特殊エラストマーの一種として、たとえばエ
チレン、（メタ）アクリル酸エステルおよび不飽和グリ
シジルエステルからなるエチレン系共重合体を主体とす
る架橋可能なエラストマー組成物が知られている。As a type of such special elastomers, for example, crosslinkable elastomer compositions mainly composed of ethylene copolymers consisting of ethylene, (meth)acrylic acid esters, and unsaturated glycidyl esters are known.
この架橋組成物は主鎖にアクリル酸エステルを含有する
為、優れた耐油性を有する。しかしながら、耐寒性の面
ではたとえば、エチレンとプロピレンからなるα−オレ
フィン系共重合体ゴムなどに比べて満足すべき結果を得
られていない。この問題を解決する為、アクリル酸エス
テルのアルキル基をブチル基に変えたものや、アルコキ
シ基に変えたものなどが検討されているがこのような方
法では実用上満足できるレベルまで耐寒性が改良されず
、又、引張り強度、耐油性といった物性低下もともない
、実用上、物性低下を生じさせることな（耐寒性を改良
する方法は見い出されていない。Since this crosslinked composition contains an acrylic ester in its main chain, it has excellent oil resistance. However, in terms of cold resistance, satisfactory results have not been obtained compared to, for example, α-olefin copolymer rubber made of ethylene and propylene. In order to solve this problem, acrylic esters in which the alkyl group is changed to a butyl group or an alkoxy group are being considered, but these methods improve cold resistance to a level that is practically satisfactory. In addition, physical properties such as tensile strength and oil resistance deteriorate, and in practice, no method of improving cold resistance has been found that does not cause a decrease in physical properties.
〈発明が解決しようとする問題点〉
本発明は、上記の欠点を改良し、エチレンとアクリル酸
エステルもしくはメタクリル酸エステルからなるエチレ
ン系共重合体の引張り強度、耐油性を実用上問題のない
レベルに維持したうえで、耐寒性を向上させた、架橋可
能な耐油性エラストマー組成物を与えるものである。<Problems to be Solved by the Invention> The present invention improves the above-mentioned drawbacks and improves the tensile strength and oil resistance of an ethylene copolymer composed of ethylene and an acrylic ester or a methacrylic ester to a level that does not cause any practical problems. The object of the present invention is to provide a crosslinkable oil-resistant elastomer composition that has improved cold resistance while maintaining the same temperature.
く問題点を解決するための手段〉
本発明者らは、上記の問題点の改良について鋭意検討を
行ない本発明に到達した。Means for Solving the Problems> The present inventors have conducted intensive studies to solve the above problems and have arrived at the present invention.
すなわち、本発明は、
エチレンとアクリル酸エステルもしくはメタクリル酸エ
ステルからなるエチレン系共重合体９９重量％以下５０
重量％以上、エチレンとα−オレフィンからなるα−オ
レフィン系共重合体ゴム１重量％以上５０重量％以下を
配合してなることを特徴とする架橋可能な耐油性エラス
トマー組成物に関するものである。That is, the present invention provides an ethylene copolymer consisting of ethylene and an acrylic ester or a methacrylic ester containing up to 99% by weight of 50% by weight or less.
The present invention relates to a crosslinkable oil-resistant elastomer composition characterized in that it contains 1% by weight or more and 50% by weight or less of an α-olefin copolymer rubber composed of ethylene and an α-olefin.
本発明におけるエチレン系共重合体の構成成分は、（ａ
）エチレン、および（ｂ）アクリル酸エステルもしくは
メタクリル酸エステルよりなるものである。（ｂ）アク
リル酸エステルもしくはメタクリル酸エステルとは、炭
素数１ないし８のアルコールからなるエステルであって
、具体的にはアクリル酸メチル、メタクリル酸メチル、
アクリル酸エチル、メタクリル酸エチル、アクリル酸ｎ
−ブチル、メタクリル酸ｎ−ブチル、アクリル１ｔｅｒ
ｔ−ブチル、メタクリル酸ｔｅｒｔ−ブチル、アクリル
酸２−エチルヘキシル、メタクリル酸２−エチルヘキシ
ルなどが例示され、これらは１種でもよいし２種以上を
混合して用いてもよい。The constituent components of the ethylene copolymer in the present invention are (a
) ethylene, and (b) acrylic ester or methacrylic ester. (b) Acrylic ester or methacrylic ester is an ester consisting of an alcohol having 1 to 8 carbon atoms, specifically methyl acrylate, methyl methacrylate,
Ethyl acrylate, ethyl methacrylate, acrylic acid n
-butyl, n-butyl methacrylate, acrylic 1ter
Examples include t-butyl, tert-butyl methacrylate, 2-ethylhexyl acrylate, and 2-ethylhexyl methacrylate, and these may be used alone or in combination of two or more.
（ａ）エチレンと（ｂ）アクリル酸エステルもしくはメ
タクリル酸エステルの割合はモル比で５０〜８５ ：
５０〜１５、好ましくは５８〜８０：４２〜２０である
。The molar ratio of (a) ethylene and (b) acrylic ester or methacrylic ester is 50 to 85:
50-15, preferably 58-80:42-20.
（ｂ）アクリル酸エステルもしくはメタクリル酸エステ
ルの含有率が上限値をこえると、脆化点ガ高くなるので
エラストマーとして低温での使用が難かしくなる。また
下限値より低いと、共重合体の結晶度が高くなるので、
エラストマーとしての充分な弾性が得られない。(b) When the content of acrylic ester or methacrylic ester exceeds the upper limit, the embrittlement point becomes high, making it difficult to use as an elastomer at low temperatures. Also, if it is lower than the lower limit, the crystallinity of the copolymer will increase, so
Sufficient elasticity as an elastomer cannot be obtained.
また、本発明におけるエチレン系共重合体は不飽和グリ
シジルエステル、酸無水物、カルボン酸基を有する不飽
和化合物（以下第三成分と略称する）の１種以上を共重
合することも出来る。Moreover, the ethylene copolymer in the present invention can also be copolymerized with one or more of unsaturated glycidyl esters, acid anhydrides, and unsaturated compounds having a carboxylic acid group (hereinafter abbreviated as the third component).
不飽和グリシジルエステルとしては例えば特公昭４６−
４５０８５号公報に記載されているグリシジルアクリレ
ート、グリシジルメタクリレート、イタコン酸ジグリシ
ジルエステル、ブテントリカルボン酸トリグリシジルエ
ステル、ｐ−スチレンカルボン酸グリシジルエステルな
どが例示され、カルボン酸基を有する不飽和化合物とし
てはアクリル酸、メタクリル酸、マレイン酸およびマレ
イン酸のハーフェステル化物等があげられ、酸無水物と
しては無水マレイン酸などが例示される。Examples of unsaturated glycidyl esters include:
Examples include glycidyl acrylate, glycidyl methacrylate, itaconic acid diglycidyl ester, butenetricarboxylic acid triglycidyl ester, p-styrenecarboxylic acid glycidyl ester, etc., which are described in Publication No. 45085, and examples of unsaturated compounds having a carboxylic acid group include acrylic acid. Examples of the acid anhydride include methacrylic acid, maleic acid, and a halfester compound of maleic acid, and maleic anhydride is exemplified as the acid anhydride.
第三成分の使用量は前記（ａ）および（ｂ）の両成分の
合計に対して０．０５ないし５モル％であり好ましくは
０．１ないし３モル％である。The amount of the third component used is 0.05 to 5 mol%, preferably 0.1 to 3 mol%, based on the total of both components (a) and (b).
本発明のエチレン系共重合体に対し他のエチレンとの共
重合可能な共単量体を共重合させることも可能である。It is also possible to copolymerize the ethylene copolymer of the present invention with other comonomers that can be copolymerized with ethylene.
具体的にはイソブチレン、スチレンおよびその誘導体、
酢酸ビニル、テトラフルオロエチレンやヘキサフルオロ
プロピレンなどのハロゲン化オレフィンなどである。Specifically, isobutylene, styrene and its derivatives,
These include vinyl acetate and halogenated olefins such as tetrafluoroethylene and hexafluoropropylene.
本発明のエチレン系共重合体は公知の方法により製造さ
れる。たとえばフリーラジカル開始塊状重合、乳化重合
、または溶液重合によって製造することができる。代表
的な重合方法は、特公昭４６−４５０８５号公報に記載
されている。たとえばフリーラジカルを生成する重合開
始剤の下で、圧力５００ｋｇ／ ｃｒ１以上、および温
度４０ないし３００℃の条件により製造することができ
る。The ethylene copolymer of the present invention is produced by a known method. For example, they can be produced by free radical initiated bulk polymerization, emulsion polymerization or solution polymerization. A typical polymerization method is described in Japanese Patent Publication No. 46-45085. For example, it can be produced under the conditions of a polymerization initiator that generates free radicals, a pressure of 500 kg/cr1 or more, and a temperature of 40 to 300°C.
本発明に用いるエチレン系共重合体は前記各成分を共重
合させてなるものであるが、ＪＩＳ Ｋ６７９１で規
定される１９０℃の溶融指数が０．５〜５００ｇ／１０
分、好ましくは０．５〜５０ｇ７１０分の範囲にある共
重合体が使用される。The ethylene copolymer used in the present invention is obtained by copolymerizing each of the above components, and has a melting index of 0.5 to 500 g/10 at 190°C as defined by JIS K6791.
min, preferably in the range of 0.5 to 50 g710 min.
本発明におけるエチレンとα−オレフィンよりなるα−
オレフィン系共重合体ゴムは、一般には第三成分として
非共役二重結合を有する直鎖又は環状単量体を共重合さ
せたものが良く知られている。α−オレフィン系共重合
体ゴムに使用されるα−オレフィンは、炭素数３以上１
２以下であって、具体的にはプロピレン、１−ブテン、
１−ペンテン、１−ヘキセン、４−メチル−１−ペンテ
ン、１−オクテンおよびこれらの混合物などを例示する
ことができるが、プロピレン、１−ブテンが特に好まし
い。共重合体中のエチレンとα−オレフィンとの比はエ
チレンの含有量として４５〜９０重量６％の範囲であり
好ましくは３５〜Ｃ５重景％の範囲から選ばれる。α- consisting of ethylene and α-olefin in the present invention
Olefin copolymer rubbers are generally well known in which a linear or cyclic monomer having a non-conjugated double bond is copolymerized as a third component. The α-olefin used in the α-olefin copolymer rubber has 3 or more carbon atoms and 1
2 or less, specifically propylene, 1-butene,
Examples include 1-pentene, 1-hexene, 4-methyl-1-pentene, 1-octene, and mixtures thereof, with propylene and 1-butene being particularly preferred. The ratio of ethylene to α-olefin in the copolymer is selected from the range of 45 to 90% by weight of ethylene, preferably 35 to 6% by weight of C5.
第三成分として用いられる非共役二重結合を有する直鎖
状又は環状単量体として、具体的には５−エチリデン２
−ノルボルネン、ジシクロペンタジェン、１−４へキサ
ジエンなどがあげられる。Specifically, the linear or cyclic monomer having a non-conjugated double bond used as the third component is 5-ethylidene 2
-norbornene, dicyclopentadiene, 1-4 hexadiene, etc.
本発明に使用されるα−オレフィン系共重合体ゴムはい
わゆるチーグラー・ナツタ触媒を用いて溶液重合、塊状
重合といった公知の方法で製造される。The α-olefin copolymer rubber used in the present invention is produced by known methods such as solution polymerization and bulk polymerization using a so-called Ziegler-Natsuta catalyst.
本発明におけるエチレン系共重合体とのα−オレフィン
系共重合体ゴムの混合割合は、エチレン系共重合体９９
重量％以下５０重量％以上に対してα−オレフィン系共
重合体ゴム１重量％以上５０重量％以下であり、耐油性
、耐寒性のバランスから好ましくはエチレン系共重合体
９０重量％以下５０重量％以下に対してα−オレフィン
系共重合体ゴム１０重量％以上５０重量％以下が好まし
い。α−オレフィン系共重合体ゴムを５０重量％以下と
したのは、これ以上では耐寒性は改良されるものの耐油
性が悪化するためである。In the present invention, the mixing ratio of the α-olefin copolymer rubber to the ethylene copolymer is 99% of the ethylene copolymer.
The α-olefin copolymer rubber is 1% by weight or more and 50% by weight or less relative to 50% by weight or less, and preferably 50% by weight or less of ethylene copolymer from the balance of oil resistance and cold resistance. % or less, α-olefin copolymer rubber is preferably 10% by weight or more and 50% by weight or less. The reason why the α-olefin copolymer rubber is set at 50% by weight or less is that if it exceeds this amount, the cold resistance will be improved, but the oil resistance will deteriorate.
本発明においては必要に応じてゴム業界で公知の加硫促
進剤、加工助剤亜鉛華、ステアリン酸、補強剤、充填剤
、軟化剤、老化防止剤および脱泡剤等を添加することが
できる。In the present invention, vulcanization accelerators, processing aids zinc white, stearic acid, reinforcing agents, fillers, softeners, anti-aging agents, defoamers, etc. known in the rubber industry may be added as necessary. .
〈実施例〉
以下、本発明を実施例により説明するが本発明はこれら
実施例に限定されるものではない。<Examples> The present invention will be described below with reference to Examples, but the present invention is not limited to these Examples.
実施例１〜５および比較例１〜３
第１表に示す配合剤および配合割合（重量部）でミキシ
ングロールを用いて混練し、得られた組成物を１７０℃
１０分の条件で蒸気プレスを用いて加硫し、加硫ゴム物
性、耐油性、低温特性はＪＩＳ Ｋ−６３０１にした
がって測定した。Examples 1 to 5 and Comparative Examples 1 to 3 The ingredients and proportions (parts by weight) shown in Table 1 were kneaded using a mixing roll, and the resulting compositions were heated at 170°C.
Vulcanization was performed using a steam press for 10 minutes, and the physical properties of the vulcanized rubber, oil resistance, and low-temperature properties were measured according to JIS K-6301.
耐油性はＪＩＳ ３号オイルを用い１５０℃７０時間
後の体積膨潤度を得た。Oil resistance was determined by using JIS No. 3 oil and measuring volumetric swelling after 70 hours at 150°C.
本実施例より明らかな通り、比較例にくらべて実施例は
加硫ゴム物性、耐油性を大巾に低下させることなく耐寒
性を向上させていることは明らかである。As is clear from this example, it is clear that, compared to the comparative example, the cold resistance of the example is improved without significantly reducing the physical properties of the vulcanized rubber and the oil resistance.
〈発明の効果〉
以上説明したように、本発明によれば、エチレン系共重
合体の引張り強度、耐油性を実用上問題のないレベルに
維持したうえで、耐寒性を向上させた、架橋可能な耐油
性エラストマー組成物を提供することができる。<Effects of the Invention> As explained above, according to the present invention, the tensile strength and oil resistance of the ethylene copolymer are maintained at levels that pose no practical problems, and the cold resistance is improved and crosslinkable. It is possible to provide an oil-resistant elastomer composition.
Claims (1)
ステルよりなるエチレン系共重合体を９９重量％以下５
０重量％以上、エチレンとα−オレフィンよりなるα−
オレフィン系共重合体ゴムを１重量％以上５０重量％以
下を配合してなることを特徴とする架橋可能な耐油性エ
ラストマー組成物。Up to 99% by weight of ethylene copolymer consisting of ethylene and acrylic ester or methacrylic ester5
α- consisting of ethylene and α-olefin at 0% by weight or more
1. A crosslinkable oil-resistant elastomer composition comprising 1% by weight or more and 50% by weight or less of an olefin copolymer rubber.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61256598A JPH0768417B2 (en) | 1986-10-27 | 1986-10-27 | Elastomer composition |
| US07/108,499 US4820774A (en) | 1986-10-27 | 1987-10-14 | Elastomer composition |
| KR1019870011907A KR960002969B1 (en) | 1986-10-27 | 1987-10-26 | Elastomer composition |
| EP87115695A EP0268851B1 (en) | 1986-10-27 | 1987-10-26 | Elastomer composition |
| DE87115695T DE3787615T2 (en) | 1986-10-27 | 1987-10-26 | Elastomeric composition. |
| ES87115695T ES2059345T3 (en) | 1986-10-27 | 1987-10-26 | ELASTOMERA COMPOSITION. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61256598A JPH0768417B2 (en) | 1986-10-27 | 1986-10-27 | Elastomer composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63110229A true JPS63110229A (en) | 1988-05-14 |
| JPH0768417B2 JPH0768417B2 (en) | 1995-07-26 |
Family
ID=17294853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61256598A Expired - Lifetime JPH0768417B2 (en) | 1986-10-27 | 1986-10-27 | Elastomer composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0768417B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54157152A (en) * | 1978-06-01 | 1979-12-11 | Japan Synthetic Rubber Co Ltd | Ethylene-propylene rubber composition |
| JPS56112949A (en) * | 1980-02-08 | 1981-09-05 | Showa Electric Wire & Cable Co Ltd | Electrically insulating composition |
| JPS598739A (en) * | 1982-07-06 | 1984-01-18 | Sumitomo Chem Co Ltd | Adherent theroplastic elastomer composition |
| JPS6173751A (en) * | 1984-09-19 | 1986-04-15 | Denki Kagaku Kogyo Kk | Rubber composition having excellent durability |
| JPS62292846A (en) * | 1986-06-12 | 1987-12-19 | Mitsubishi Cable Ind Ltd | Flame-retardant composition |
-
1986
- 1986-10-27 JP JP61256598A patent/JPH0768417B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54157152A (en) * | 1978-06-01 | 1979-12-11 | Japan Synthetic Rubber Co Ltd | Ethylene-propylene rubber composition |
| JPS56112949A (en) * | 1980-02-08 | 1981-09-05 | Showa Electric Wire & Cable Co Ltd | Electrically insulating composition |
| JPS598739A (en) * | 1982-07-06 | 1984-01-18 | Sumitomo Chem Co Ltd | Adherent theroplastic elastomer composition |
| JPS6173751A (en) * | 1984-09-19 | 1986-04-15 | Denki Kagaku Kogyo Kk | Rubber composition having excellent durability |
| JPS62292846A (en) * | 1986-06-12 | 1987-12-19 | Mitsubishi Cable Ind Ltd | Flame-retardant composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0768417B2 (en) | 1995-07-26 |
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