JPH0419260B2 - - Google Patents
Info
- Publication number
- JPH0419260B2 JPH0419260B2 JP59157662A JP15766284A JPH0419260B2 JP H0419260 B2 JPH0419260 B2 JP H0419260B2 JP 59157662 A JP59157662 A JP 59157662A JP 15766284 A JP15766284 A JP 15766284A JP H0419260 B2 JPH0419260 B2 JP H0419260B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- weight
- formula
- ethylene
- alkyl group
- 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
Links
- 239000000203 mixture Substances 0.000 claims description 20
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 17
- 235000012239 silicon dioxide Nutrition 0.000 claims description 17
- 229920001971 elastomer Polymers 0.000 claims description 14
- 239000005060 rubber Substances 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 13
- 239000004636 vulcanized rubber Substances 0.000 claims description 12
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims description 8
- 229920000181 Ethylene propylene rubber Polymers 0.000 claims description 7
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims description 4
- 150000002978 peroxides Chemical class 0.000 claims description 4
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 2
- 125000006545 (C1-C9) alkyl group Chemical group 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 239000012744 reinforcing agent Substances 0.000 description 5
- 238000004073 vulcanization Methods 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- -1 diacyl peroxide Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 238000010060 peroxide vulcanization Methods 0.000 description 3
- 239000012763 reinforcing filler Substances 0.000 description 3
- 235000010215 titanium dioxide Nutrition 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 150000001451 organic peroxides Chemical group 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- GDOBGDUGIFUCJV-UHFFFAOYSA-N 2,2-dimethylbutane;2-methylprop-2-enoic acid Chemical compound CCC(C)(C)C.CC(=C)C(O)=O.CC(=C)C(O)=O.CC(=C)C(O)=O GDOBGDUGIFUCJV-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012933 diacyl peroxide Substances 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- FPCCSQOGAWCVBH-UHFFFAOYSA-N ketanserin Chemical compound C1=CC(F)=CC=C1C(=O)C1CCN(CCN2C(C3=CC=CC=C3NC2=O)=O)CC1 FPCCSQOGAWCVBH-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 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
- 239000012860 organic pigment Substances 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 125000006239 protecting group Chemical group 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000006076 specific stabilizer Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000010059 sulfur vulcanization Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
本発明は耐候性にすぐれた、鮮明な色相を有す
るエチレン・プロピレン系加硫ゴム組成物に関す
る。
エチレン・プロピレンゴムもしくはエチレン・
プロピレン・非共役ジエンゴム（以下、これらを
総称してエチレン・プロピレン系ゴムという。）
は、天然ゴムやスチレン・ブタジエンゴム、ブタ
ジエンゴム、イソプレンゴム等の汎用ゴムに比較
して耐候性、耐熱性にすぐれているところから、
自動車の外装ゴム部品、エンジン部品、建築材料
等の各種分野に広く用いられているが、従来の製
品はカーボンブラツクを配合した黒色製品であつ
て、カーボンブラツク以外の補強剤又は充填剤、
例えば含水ケイ酸、無水ケイ酸、炭酸カルシウ
ム、クレー等を配合した白色配合では、天然ゴム
及び汎用合成ゴムに比較すれば耐熱性はすぐれて
いるが、カーボンブラツク配合に比較して耐候
性、耐熱性の点で劣る。
このため、従来の白色配合においては紫外線遮
蔽効果のあるチタン白、特にルチル型チタン白を
10重量部〜50重量部程度配合し耐候性を向上させ
ていたが、チタン白は隠蔽力を有するため、特に
顔料及び／または染料を加えたような着色組成物
の場合には不鮮明なくすんだ色相の加硫ゴム組成
物となり、商品価値の小さいものしか得られなか
つた。
このようなことから、本発明者らは耐候性にす
ぐれ、しかも鮮明な色相を有するエチレン・プロ
ピレン系加硫ゴム組成物を開発すべく鋭意検討を
重ねた結果、エチレン・プロピレン系ゴムに含水
酸および／または無水ケイ酸、特定の安定剤をそ
れぞれ特定量配合し、これを過酸化物加硫するこ
とにより耐候性にすぐれ、しかも色相の鮮明なゴ
ム組成物が得られることを見出し、本発明に至つ
た。
すなわち本発明は、エチレン・プロピレン系ゴ
ム100重量部あたり、含水ケイ酸および／または
無水ケイ酸を５〜100重量部、下記一般式（）、
（）で示される化合物から選ばれる少なくとも
１種を0.01〜３重量部および下記一般式（）、
（）で示される化合物から選ばれる少なくとも
１種を０〜３重量部含有する未加硫ゴム組成物を
過酸化物加硫してなる耐候性にすぐれたエチレ
ン・プロピレン系加硫ゴム組成物を提供するもの
である。
一般式（）
（式中、R1はC1〜3のアルキル基を示す。）
一般式（）
（式中、R2はC6〜10のアルキル基、R3はC1〜3のア
ルキル基、ｎは１〜５の実数を示す。）
一般式（）
（式中、R4はC1〜9のアルキル基を示す。）
一般式（）
（式中、R5はC1〜6のアルキル基を、ｍは１〜６
の整数を示す。）
本発明において、含水ケイ酸及び／または無水
ケイ酸が補強剤、充填剤として用いられ、その使
用量は色調の鮮明さ及び加硫ゴム組成物の物理的
性質を良好に保つために、通常エチレン・プロピ
レン系ゴム100重量部あたり５〜100重量部であ
る。
尚、本発明において補強剤、充填剤は含水ケイ
酸、無水ケイ酸であるに限られず、他の白色の補
強剤、白色充填剤を含水ケイ酸および／または無
水ケイ酸に対して約10％以下の範囲で添加しても
よい。
本発明は、上記した含水ケイ酸および／または
無水ケイ酸とともに、前記一般式（）〜（）
で示した安定剤を使用するものであるが、これら
各種の安定剤のうち、一般式（）、（）で示さ
れる化合物から選ばれる少なくとも１種は必須成
分であり、その使用量はエチレン・プロピレン系
ゴム100重量部に対して0.01〜３重量部である。
この範囲より配合量が少ないと耐熱性、耐候性が
十分でなく、この範囲を越えると不必要な量の使
用となつて不経済である。
尚、一般式（）で示される化合物において、
その分子末端は水素原子に代わる他の保護基であ
つてもよく、あるいは該アミンの塩であつてもよ
く、これらは効果上同等に扱われる。
一般式（）、（）で示される化合物は本発明
における必須成分ではなく、必ずしも必要ではな
いが、これらの化合物から選ばれる少なくとも１
種の添加はより効果を向上せしめる点で有効であ
り、一般にエチレン・プロピレン系ゴム100重量
部あたり３重量部以下の範囲で使用される。
かかる一般式（）〜（）で示される化合物
はいずれもポリオレフイン系プラスチツクの安定
剤として公知である（たとえば特公昭47−27624
号公報、特開昭56−62835号公報、特開昭51−
5349号公報など）が、加硫ゴム組成物に対する安
定剤としては全く知られていない。
加硫ゴム組成物が補強剤、加硫剤、加硫促進剤
等多種の添加剤を加え、さらに加硫工程を経るな
ど、通常のポリオレフイン系樹脂とはポリマー種
の違いのみならず、組成及び加工工程に大きい相
違があることを考慮すれば、本発明の如く、含水
ケイ酸および／または無水ケイ酸を含むエチレ
ン・プロピレン系ゴムという特定されたゴム組成
物に対してすぐれたすぐれた効果を発揮すること
は驚くべきことである。
含水ケイ酸および／または無水ケイ酸、上記安
定剤を配合されたエチレン・プロピレン系未加硫
ゴム組成物は、次いで加硫されるが、本発明にお
いては硫黄加硫等の加硫法では色相の鮮明な加硫
ゴム組成物が得られないため、過酸化物加硫が行
われる。この目的に用いる過酸化物としては有機
過酸化物であれは特に限定されるものではなく、
ジアシルパーオキサイド、ジアルキルパーオキサ
イド、パーオキシエステル、パーケタールなどの
有機過酸化物の一種以上を用いることができる。
また必要に応じてエチレンジメタアクリレート、
トリメチルプロパントリメタアクリレート、トリ
アリルイソシアヌレートなどを過酸物加硫の助剤
として加えることができる。
この過酸化物加硫における加硫方法自体は何ら
本発明に特定されず、従来公知の方法が適用され
る。
本発明において、加硫ゴム組成物の着色のため
用いられる有機顔料及び／または有機染料は、通
常用いられるものであればよく、特に制限される
ものではない。さらに必要に応じてゴム用副資材
としての公知の軟化剤、可塑剤、加工助剤、酸化
亜鉛、ステアリン酸等を加えることができるが、
加硫ゴム組成物を着色しないものを使用すること
が望ましい。
また、本発明において、ゴム成分としてはエチ
レン・プロピレン系ゴム単独である必要は必ずし
もなく、これを主体として他の天然ゴム、各種合
成ゴムを必要に応じて混合して用いてもよい。
以下実施例に基づいて本発明を詳細に説明する
が本発明はこれらにより限定されるものではな
い。
実施例 １
第１表に示す配合に基づいて、エチレン・プロ
ピレン系ゴムおよび各種配合剤をオープンロール
を用いて混練した。得られた未加硫ゴム組成物を
蒸気プレス機を用いてNo.１〜12は170℃、No.13は
150℃で10分間それぞれ加硫し、長さ２mmのそれ
ぞれの加硫ゴムシートを得た。
このシートをサンシヤインウエザーメータで63
℃、120分中18分降雨サイクルで400時間、700時
間、1000時間暴露して耐候試験を行い、そのシー
トについて、JAS K6301第16項オゾン劣化試験
に規定してあるクラツク表示の方法に準じ、試験
片を二つ折りにした後広げたときの折り曲げた部
分のクラツク（き裂）の発生状態を下表に示す基
準に従つて評価した。結果を第２表に示す。
The present invention relates to an ethylene-propylene vulcanized rubber composition having excellent weather resistance and a clear hue. Ethylene/propylene rubber or ethylene/propylene rubber
Propylene/non-conjugated diene rubber (hereinafter collectively referred to as ethylene/propylene rubber)
is superior in weather resistance and heat resistance compared to general-purpose rubbers such as natural rubber, styrene-butadiene rubber, butadiene rubber, and isoprene rubber.
It is widely used in various fields such as automobile exterior rubber parts, engine parts, and building materials, but conventional products are black products that contain carbon black and do not contain reinforcing agents or fillers other than carbon black.
For example, a white compound containing hydrated silicic acid, anhydrous silicic acid, calcium carbonate, clay, etc. has superior heat resistance compared to natural rubber and general-purpose synthetic rubber, but has better weather resistance and heat resistance than a carbon black compound. inferior in terms of sex. For this reason, in conventional white formulations, titanium white, especially rutile titanium white, which has an ultraviolet shielding effect, is used.
Approximately 10 to 50 parts by weight were added to improve weather resistance, but since titanium white has a hiding power, it becomes unclear and dull, especially in the case of colored compositions containing pigments and/or dyes. The result was a vulcanized rubber composition with a different color, and only a product with low commercial value could be obtained. For this reason, the present inventors have conducted intensive studies to develop an ethylene-propylene-based vulcanized rubber composition that has excellent weather resistance and a clear hue. It has been discovered that a rubber composition with excellent weather resistance and a clear hue can be obtained by blending specific amounts of silicic anhydride and/or a specific stabilizer and vulcanizing this with peroxide, and the present invention has been made based on the present invention. It came to this. That is, the present invention uses 5 to 100 parts by weight of hydrated silicic acid and/or anhydrous silicic acid per 100 parts by weight of ethylene-propylene rubber, and the following general formula (),
0.01 to 3 parts by weight of at least one compound selected from the compounds represented by () and the following general formula (),
An ethylene-propylene-based vulcanized rubber composition with excellent weather resistance is obtained by peroxide vulcanization of an unvulcanized rubber composition containing 0 to 3 parts by weight of at least one compound selected from the compounds shown in parentheses. This is what we provide. General formula () (In the formula, R 1 represents a C 1-3 alkyl group.) General formula () (In the formula, R 2 is a C 6-10 alkyl group, R 3 is a C 1-3 alkyl group, and n is a real number of 1-5.) General formula () (In the formula, R 4 represents a C 1-9 alkyl group.) General formula () (In the formula, R 5 is a C 1-6 alkyl group, m is 1-6
indicates an integer. ) In the present invention, hydrated silicic acid and/or anhydrous silicic acid are used as reinforcing agents and fillers, and the amount used is usually determined in order to maintain good color clarity and physical properties of the vulcanized rubber composition. The amount is 5 to 100 parts by weight per 100 parts by weight of ethylene-propylene rubber. In the present invention, the reinforcing agent and filler are not limited to hydrated silicic acid and anhydrous silicic acid, but other white reinforcing agents and white fillers are used in an amount of about 10% based on hydrated silicic acid and/or silicic anhydride. It may be added in the following range. The present invention provides the above-mentioned hydrous silicic acid and/or anhydrous silicic acid as well as the general formulas () to ()
Among these various stabilizers, at least one selected from the compounds represented by the general formulas () and () is an essential component, and the amount used is equal to ethylene, The amount is 0.01 to 3 parts by weight per 100 parts by weight of propylene rubber.
If the amount is less than this range, the heat resistance and weather resistance will be insufficient, and if it exceeds this range, an unnecessary amount will be used and it will be uneconomical. In addition, in the compound represented by the general formula (),
The terminal end of the molecule may be another protecting group in place of the hydrogen atom, or may be a salt of the amine, and these are treated equally effectively. The compounds represented by the general formulas () and () are not essential components in the present invention, and at least one selected from these compounds is not necessarily required.
Addition of seeds is effective in further improving the effect, and is generally used in an amount of 3 parts by weight or less per 100 parts by weight of ethylene-propylene rubber. All of the compounds represented by the general formulas () to () are known as stabilizers for polyolefin plastics (for example, Japanese Patent Publication No. 47-27624).
No. 1, JP-A-56-62835, JP-A-51-
No. 5349, etc.) are not known at all as stabilizers for vulcanized rubber compositions. Vulcanized rubber compositions are made with various additives such as reinforcing agents, vulcanizing agents, and vulcanization accelerators, and then undergo a vulcanization process. Considering the large differences in processing steps, the present invention provides superior effects on the specified rubber compositions of ethylene-propylene rubber containing hydrous silicic acid and/or anhydrous silicic acid. What it does is amazing. The ethylene/propylene unvulcanized rubber composition blended with hydrous silicic acid and/or anhydrous silicic acid and the above-mentioned stabilizer is then vulcanized, but in the present invention, sulfur vulcanization and other vulcanization methods are used to Since a clear vulcanized rubber composition cannot be obtained, peroxide vulcanization is performed. The peroxide used for this purpose is not particularly limited as long as it is an organic peroxide.
One or more organic peroxides such as diacyl peroxide, dialkyl peroxide, peroxy ester, and perketal can be used.
Also, if necessary, ethylene dimethacrylate,
Trimethylpropane trimethacrylate, triallylisocyanurate, and the like can be added as auxiliaries for peracid vulcanization. The vulcanization method itself in this peroxide vulcanization is not specified in any way by the present invention, and conventionally known methods can be applied. In the present invention, the organic pigment and/or organic dye used for coloring the vulcanized rubber composition are not particularly limited as long as they are commonly used. Furthermore, if necessary, known auxiliary materials for rubber such as softeners, plasticizers, processing aids, zinc oxide, stearic acid, etc. can be added.
It is desirable to use a vulcanized rubber composition that does not color. Furthermore, in the present invention, the rubber component does not necessarily have to be ethylene-propylene rubber alone; it may be used as a main component, and other natural rubbers and various synthetic rubbers may be mixed as needed. The present invention will be described in detail below based on Examples, but the present invention is not limited thereto. Example 1 Based on the formulation shown in Table 1, ethylene-propylene rubber and various compounding agents were kneaded using an open roll. The obtained unvulcanized rubber composition was heated at 170°C for Nos. 1 to 12 and at 170°C for No. 13 using a steam press machine.
Each was vulcanized at 150°C for 10 minutes to obtain each vulcanized rubber sheet with a length of 2 mm. 63 with this sheet on Sunshine Weather Meter
℃, 400 hours, 700 hours, and 1000 hours of exposure in a rain cycle of 18 minutes in 120 minutes, and the sheet was subjected to a crack marking method specified in JAS K6301 Section 16 Ozone Deterioration Test. When the test piece was folded in half and then unfolded, the occurrence of cracks in the folded portion was evaluated according to the criteria shown in the table below. The results are shown in Table 2.
【表】【table】
【表】【table】
【表】【table】
【表】【table】
【表】【table】
Claims (1)
り、含水ケイ酸および／または無水ケイ酸を５〜
100重量部、下記一般式（）、（）で示される
化合物から選ばれる少なくとも１種を0.01〜３重
量部および下記一般式（）、（）で示される化
合物から選ばれる少なくとも、１種を０〜３重量
部含有する未加硫ゴム組成物を過酸化物加硫して
なる耐候性にすぐれたエチレン・プロピレン系加
硫ゴム組成物。 一般式（） （式中、R1はC1〜3のアルキル基を示す。） 一般式（） （式中、R2はC6〜10のアルキル基、R3はC1〜3のア
ルキル基、ｎは１〜５の実数を示す。） 一般式（） （式中、R4はC1〜9のアルキル基を示す。） 一般式（） （式中、R5はC1〜6のアルキル基を、ｍは１〜６
の整数を示す。）[Claims] 1. Hydrous silicic acid and/or anhydrous silicic acid in 5 to 5 parts per 100 parts by weight of ethylene-propylene rubber.
100 parts by weight, 0.01 to 3 parts by weight of at least one compound selected from the following general formulas () and (), and 0.01 to 3 parts by weight of at least one compound selected from the following general formulas () and (). An ethylene/propylene vulcanized rubber composition having excellent weather resistance, obtained by vulcanizing an unvulcanized rubber composition containing up to 3 parts by weight with peroxide. General formula () (In the formula, R 1 represents a C 1-3 alkyl group.) General formula () (In the formula, R 2 is a C 6-10 alkyl group, R 3 is a C 1-3 alkyl group, and n is a real number of 1-5.) General formula () (In the formula, R 4 represents a C 1-9 alkyl group.) General formula () (In the formula, R 5 is a C 1-6 alkyl group, m is 1-6
indicates an integer. )
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59157662A JPS6136345A (en) | 1984-07-30 | 1984-07-30 | Ethylene-propylene based vulcanized rubber composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59157662A JPS6136345A (en) | 1984-07-30 | 1984-07-30 | Ethylene-propylene based vulcanized rubber composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6136345A JPS6136345A (en) | 1986-02-21 |
| JPH0419260B2 true JPH0419260B2 (en) | 1992-03-30 |
Family
ID=15654632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59157662A Granted JPS6136345A (en) | 1984-07-30 | 1984-07-30 | Ethylene-propylene based vulcanized rubber composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6136345A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62119242A (en) * | 1985-11-19 | 1987-05-30 | Sumitomo Chem Co Ltd | Rubber composition composed of ethylene-alpha-olefin copolymer |
| JPH04189857A (en) * | 1990-11-22 | 1992-07-08 | Sumitomo Chem Co Ltd | Ethylene-alpha-olefin copolymer-based vulcanized rubber composition |
| JPH0593113A (en) * | 1991-10-01 | 1993-04-16 | Tatsuta Electric Wire & Cable Co Ltd | Radiation-resistant elastomer composition |
| WO2023199978A1 (en) * | 2022-04-13 | 2023-10-19 | 株式会社Adeka | Resin additive composition, method for producing resin additive composition, method for improving blocking resistance of resin additive composition, resin composition, resin structure, method for producing resin composition, hindered amine compound, and phenolic antioxidant |
-
1984
- 1984-07-30 JP JP59157662A patent/JPS6136345A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6136345A (en) | 1986-02-21 |
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