JPS63150339A - Rubber composition of improved heat resistance - Google Patents
Rubber composition of improved heat resistanceInfo
- Publication number
- JPS63150339A JPS63150339A JP29751886A JP29751886A JPS63150339A JP S63150339 A JPS63150339 A JP S63150339A JP 29751886 A JP29751886 A JP 29751886A JP 29751886 A JP29751886 A JP 29751886A JP S63150339 A JPS63150339 A JP S63150339A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- heat resistance
- rubber composition
- sulfur
- 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
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 41
- 239000005060 rubber Substances 0.000 title claims abstract description 41
- 239000000203 mixture Substances 0.000 title claims abstract description 20
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920003244 diene elastomer Polymers 0.000 claims abstract description 10
- 239000011593 sulfur Substances 0.000 claims abstract description 10
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 5
- 239000005061 synthetic rubber Substances 0.000 claims abstract description 5
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 4
- 229920001194 natural rubber Polymers 0.000 claims abstract description 4
- 125000000217 alkyl group Chemical group 0.000 claims abstract 3
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 3
- 125000004432 carbon atom Chemical group C* 0.000 claims 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- 229960002447 thiram Drugs 0.000 abstract description 3
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 abstract description 2
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 abstract description 2
- FIHBHSQYSYVZQE-UHFFFAOYSA-N 6-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound C=CC(=O)OCCCCCCOC(=O)C=C FIHBHSQYSYVZQE-UHFFFAOYSA-N 0.000 abstract 1
- 125000004386 diacrylate group Chemical group 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000003712 anti-aging effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- INQDDHNZXOAFFD-UHFFFAOYSA-N 2-[2-(2-prop-2-enoyloxyethoxy)ethoxy]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOCCOC(=O)C=C INQDDHNZXOAFFD-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- AUZONCFQVSMFAP-UHFFFAOYSA-N disulfiram Chemical compound CCN(CC)C(=S)SSC(=S)N(CC)CC AUZONCFQVSMFAP-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- JFZBUNLOTDDXNY-UHFFFAOYSA-N 2-[2-(2-methylprop-2-enoyloxy)propoxy]propyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(C)OCC(C)OC(=O)C(C)=C JFZBUNLOTDDXNY-UHFFFAOYSA-N 0.000 description 1
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
- CPGFMWPQXUXQRX-UHFFFAOYSA-N 3-amino-3-(4-fluorophenyl)propanoic acid Chemical compound OC(=O)CC(N)C1=CC=C(F)C=C1 CPGFMWPQXUXQRX-UHFFFAOYSA-N 0.000 description 1
- OWNRRUFOJXFKCU-UHFFFAOYSA-N Bromadiolone Chemical compound C=1C=C(C=2C=CC(Br)=CC=2)C=CC=1C(O)CC(C=1C(OC2=CC=CC=C2C=1O)=O)C1=CC=CC=C1 OWNRRUFOJXFKCU-UHFFFAOYSA-N 0.000 description 1
- 244000309456 Decussocarpus nagi Species 0.000 description 1
- 235000008375 Decussocarpus nagi Nutrition 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- SWHLOXLFJPTYTL-UHFFFAOYSA-N [2-methyl-3-(2-methylprop-2-enoyloxy)-2-(2-methylprop-2-enoyloxymethyl)propyl] 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(C)(COC(=O)C(C)=C)COC(=O)C(C)=C SWHLOXLFJPTYTL-UHFFFAOYSA-N 0.000 description 1
- ZZAGLMPBQOKGGT-UHFFFAOYSA-N [4-[4-(4-prop-2-enoyloxybutoxy)benzoyl]oxyphenyl] 4-(4-prop-2-enoyloxybutoxy)benzoate Chemical compound C1=CC(OCCCCOC(=O)C=C)=CC=C1C(=O)OC(C=C1)=CC=C1OC(=O)C1=CC=C(OCCCCOC(=O)C=C)C=C1 ZZAGLMPBQOKGGT-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- PGAXJQVAHDTGBB-UHFFFAOYSA-N dibutylcarbamothioylsulfanyl n,n-dibutylcarbamodithioate Chemical compound CCCCN(CCCC)C(=S)SSC(=S)N(CCCC)CCCC PGAXJQVAHDTGBB-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- YDKNBNOOCSNPNS-UHFFFAOYSA-N methyl 1,3-benzoxazole-2-carboxylate Chemical compound C1=CC=C2OC(C(=O)OC)=NC2=C1 YDKNBNOOCSNPNS-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005650 polypropylene glycol diacrylate Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000004354 sulfur functional group Chemical group 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- -1 thiuram disulfides Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 239000004636 vulcanized rubber Substances 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、タイヤやベルトなど各種のゴム製品に適用可
能なゴム組成物、特に耐熱性を必要とする空気入りタイ
ヤの部材１例えば、ケースゴム、トレッドゴムやビート
フィラーゴムなどに好適なゴム組成物に関するものであ
る。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a rubber composition applicable to various rubber products such as tires and belts, and particularly to members 1 of pneumatic tires that require heat resistance, such as cases. The present invention relates to a rubber composition suitable for rubber, tread rubber, beat filler rubber, etc.
（従来の技術）
最近、自動車の性能向上や高速道路網の発達に伴ない、
高運動性能、特にグリップ性能と高速耐久性を兼ね備え
た空気入りタイヤの要求が強まっている。(Conventional technology) Recently, with the improvement of automobile performance and the development of expressway networks,
There is an increasing demand for pneumatic tires with high maneuverability, especially those that combine grip performance and high-speed durability.
高グリップ性能を得るためには、トレッドゴム組成物の
ヒステリシスロスを大きくすることが必要であるが、高
速走行時、このヒステリシスロスのためタイヤが発熱し
、タイヤ温度が急激に上昇する。そのため、比較的耐熱
性の劣るジエン系ゴムから成るトレッドゴムやケースゴ
ムなどはこの急激な温度上昇に耐え切れず、ブロー（ｂ
ｌｏｗ）を発生し、これがセパレージ、ンやチャンクア
ウトなどタイヤ破壊の原因となっている。In order to obtain high grip performance, it is necessary to increase the hysteresis loss of the tread rubber composition, but when running at high speed, the tire generates heat due to this hysteresis loss, causing the tire temperature to rise rapidly. Therefore, tread rubber, case rubber, etc. made of diene rubber, which has relatively poor heat resistance, cannot withstand this rapid temperature rise, and
This causes tire damage such as separation, leakage, and chunk-out.
つｔシ、タイヤのグリップ性能と高速耐久性を向上する
ためには、このような急激な温度上昇下でもブローしな
いような高討熱性のゴムが必要となる。In order to improve the tire's grip performance and high-speed durability, it is necessary to use a rubber with high heat dissipation properties that will not blow out even under such rapid temperature rises.
ゴムの耐熱性を向上させるには、分子構造内に二重結合
を持たないゴムを用いる方法がある。従来から知られて
いるこのようなゴムとして、フッ素がム、シリコーンゴ
ムやＥＰＤＭゴムなどがある。One way to improve the heat resistance of rubber is to use rubber that does not have double bonds in its molecular structure. Conventionally known such rubbers include fluorine rubber, silicone rubber, and EPDM rubber.
或いは、従来から用いられている老化防止剤の中には、
耐熱性附与に有効なものが知られている。Alternatively, some of the conventionally used anti-aging agents include
Some are known to be effective in imparting heat resistance.
例えば、二次老防として用いられるツクラックＭＢや反
応性老防として用いられるツクラックＧ−１などの使用
はゴムの耐熱性向上に有効である。For example, the use of Tsukurak MB, which is used as a secondary anti-aging agent, and Tsukurak G-1, which is used as a reactive anti-aging agent, is effective in improving the heat resistance of rubber.
（発明が解決しようとする問題点）
耐熱性を向上させるために、分子構造内に二重結合を持
たないゴム、例えばフッ素ゴム、シリコーンがムやＥＰ
ＤＭなどを用いる方法は、イオウ加硫ができない、ジエ
ン系ゴムとうまくブレンドしない、また、ジエン系コ９
ムやコードとの界面接着がとれない等ジエン系ゴム対比
欠点が多い。(Problem to be solved by the invention) In order to improve heat resistance, rubbers that do not have double bonds in their molecular structure, such as fluororubber, silicone rubber, and EP
Methods using DM etc. cannot be vulcanized with sulfur, do not blend well with diene rubbers, and cannot be cured with diene rubbers.
It has many disadvantages compared to diene rubbers, such as not being able to adhere to the interface with rubber or cords.
また耐熱性附与に優れた老防のツクラックＭＢやツクラ
ックＧ−１などの使用は、比較的マイルドな温度上昇の
下で、長時間使用する場合の、ゴムの物性低下を防ぐた
めのものであシ、急激な温度上昇下、ゴムの主鎖及び架
橋点の急激な切断により発生するブローを防ぐ効果は殆
んどない。なお、条件によりてはブロー発生を促進する
場合すらあるのが現状である。In addition, the use of anti-aging materials such as Tsukurak MB and Tsukurak G-1, which have excellent heat resistance, is to prevent the physical properties of the rubber from deteriorating when used for a long time under relatively mild temperature rises. There is almost no effect in preventing blowing caused by rapid cleavage of the main chain and crosslinking points of the rubber under conditions of rapid temperature rise. Note that, depending on the conditions, the current situation is that blowing may even be promoted.
以上の観点から本発明は、他の物性を低下させないで、
急激な温度上昇の下、ゴムがブローしないような耐熱性
を向上させたゴム組成物を提供することを狙いとしたも
のである。From the above points of view, the present invention provides the following advantages:
The aim is to provide a rubber composition with improved heat resistance so that the rubber does not blow out under rapid temperature rises.
（問題点を解決するための手段）
本発明者等は、上記問題点を解決するため鋭意研究検討
を重ねた結果、特定構造の基を２個以上含有する化合物
がこの解決に極めて有効であることを突き止め１本発明
に到達した。(Means for Solving the Problems) As a result of extensive research and consideration in order to solve the above problems, the present inventors have found that compounds containing two or more groups with a specific structure are extremely effective in solving the problems. We discovered this and arrived at the present invention.
即ち、本発明は天然コ０ムおよび／または合成がムから
なるジエン系ゴムと加硫剤としてイオウお基）を含有す
る化合物を添加することを特徴とする耐熱性を改良した
ゴム組成物を提供するものである。That is, the present invention provides a rubber composition with improved heat resistance characterized by adding a diene rubber consisting of a natural comb and/or a synthetic rubber and a compound containing a sulfur group as a vulcanizing agent. This is what we provide.
以下、その詳細に就いて説明する。The details will be explained below.
本発明において、ゴム成分としては、天然ゴムまたは合
成ゴムの単独あるいはこれらをブレンドして使用するこ
とができる。この合成ゴムの例とンゴムやスチレン・ブ
タジェンゴム等が、Ｍ’られる。In the present invention, as the rubber component, natural rubber or synthetic rubber can be used alone or as a blend thereof. Examples of this synthetic rubber include rubber, styrene-butadiene rubber, etc.
本発明において用いられる加硫剤としては、イオウま九
はイオウ供与剤の単独あるいはこれらを併用することが
できる。このイオウ供与剤の例としては、テトラメチル
チウラムジスルフィド、テトラエチルチウラムジスルフ
ィドやテトラブチルチウラムジスルフィドなどのチウラ
ムジスルフィド類、ジペンタメチレンチウラムテトラス
ルフィ０．５〜１５重量部が好ましい。即ち０．５重量
部未満では、コ０ム組成物として充分な硬度や弾性率を
得ることが出来ない。また−万、１５重ｉｔ部を越える
と、硬度や弾性率が大きくなりすぎて十分なゴム弾性体
を得ることが出来ない。よシ好ましくは１．０〜１０重
量部である。As the vulcanizing agent used in the present invention, sulfur donor and sulfur donor can be used alone or in combination. Preferred examples of the sulfur donor include thiuram disulfides such as tetramethylthiuram disulfide, tetraethylthiuram disulfide and tetrabutylthiuram disulfide, and 0.5 to 15 parts by weight of dipentamethylenethiuram tetrasulfide. That is, if the amount is less than 0.5 parts by weight, sufficient hardness and elastic modulus cannot be obtained as a comb composition. If the weight exceeds -15,000, the hardness and elastic modulus become too large, making it impossible to obtain a sufficient rubber elastic body. The amount is preferably 1.0 to 10 parts by weight.
基の代表的なものとしては、Ｒが水素のを有する化合物
が顕著な効果がちりよシ好ましい。As representative examples of the group, compounds in which R is hydrogen are preferred because of their remarkable effects.
以下にその具体例を示す。A specific example is shown below.
１．３−ブチレングリコールジアクリレート、１．ｓ−
″２ンタ／ジオールジアクリレート、ネオペンチルグリ
コールジアクリレー）、１．６−へキサンノオールジア
クリレート、ジエチレングリコールノアクリレート、ト
リエチレングリコールジアクリレート、テトラエチレン
グリコールノアクリレート、ポリエチレングリコールジ
アクリレート、ポリプロピレングリユールジアクリレー
ト、ポリエステル型ジアクリレート、ビス（４−アクリ
ロキシポリエトキシフェニルプロパン；
チル型ジアクリレート、オリがエステルジアクリレート
二Ａ子Ｍ−Ｎ）−Ｍ−Ａ （Ａ ニアクリル酸、凪２価
アルコール、Ｎ；２塩基酸、ｎ：２〜３）。1.3-butylene glycol diacrylate, 1. s-
``2/diol diacrylate, neopentyl glycol diacrylate), 1,6-hexaneol diacrylate, diethylene glycol no acrylate, triethylene glycol diacrylate, tetraethylene glycol no acrylate, polyethylene glycol diacrylate, polypropylene glycol diacrylate Eul diacrylate, polyester diacrylate, bis(4-acryloxypolyethoxyphenylpropane; chill diacrylate, oriester diacrylate diacrylate M-N)-M-A (A diacrylic acid, Nagi dihydric alcohol , N: dibasic acid, n: 2-3).
七の他。Seven others.
（イ）３個以上の一〇−Ｃ−ＣＨ＝ＣＨ２を有する化合
物の例。(a) Examples of compounds having three or more 10-C-CH=CH2.
ペンタエリスリトールトリアクリレート、ト、ツケ。９
；茶。／＃ ７ ） ＩＪア□ヮー１、ヶ、。Pentaerythritol triacrylate. 9
;tea. /# 7) IJa □ヮヮヮヮ.
メチロールメタンテトラアクリレート、ジペンタエリス
リトールヘキサ／ペンタアクリレート、オリがエステル
？リアクリレート；
ルコール、Ｙ；多塩基酸、ｎ；２〜３）、その他Ｏ
ジプロピレングリコールジメタクリレート。Methylolmethanetetraacrylate, dipentaerythritol hexa/pentaacrylate, ori is ester? Reacrylate; alcohol, Y; polybasic acid, n; 2-3), others O dipropylene glycol dimethacrylate.
トリメチロールエタントリメタクリレート、トリメチロ
ールプロパントリメタクリレート、その他。Trimethylolethane trimethacrylate, trimethylolpropane trimethacrylate, and others.
なお、これら化合物は、単独であってもよいし２種以上
の併用であってもよい。Note that these compounds may be used alone or in combination of two or more.
本発明においてこれら化合物の配合量は、ゴム成分１０
０重量部に対して０．１重量部以上、好ましくは１．０
重量部以上である。その理由はその配合量がＯ，１重量
部未満では本発明の目的とする耐熱性向上に対し所望の
効果を得ることができない・なお、本発明においては、
上述のイオウおよび／を有する化合物のほかにゴム工業
で通常使用される配合剤１例えば充填剤、軟化剤、老化
防止剤、加硫促進剤や加硫促進助剤などを必要に応じて
、通常の配合量の範囲内で配合することができる。In the present invention, the compounding amount of these compounds is 10% of the rubber component.
0.1 parts by weight or more, preferably 1.0 parts by weight
Parts by weight or more. The reason for this is that if the blending amount is less than 1 part by weight, the desired effect of improving heat resistance, which is the objective of the present invention, cannot be obtained.In addition, in the present invention,
In addition to the above-mentioned compounds containing sulfur and/or sulfur, compounding agents commonly used in the rubber industry, such as fillers, softeners, anti-aging agents, vulcanization accelerators and vulcanization accelerators, etc., may be added as necessary. It can be blended within the range of blending amount.
以下、実施例によ）、よシ具体的に説明する。Hereinafter, a detailed explanation will be given (based on examples).
（実施例）
実施例１〜１５、比較例１〜３
天然ゴムとスチレン−ブタジェン共重合体ゴムを８対２
０割合（重量）でブレンドしたゴム成分１００重量部に
対し、アロマオイル１０重量部。(Example) Examples 1 to 15, Comparative Examples 1 to 3 Natural rubber and styrene-butadiene copolymer rubber 8:2
10 parts by weight of aroma oil per 100 parts by weight of the rubber component blended at a ratio (weight) of 0.
ｌ５ＡＦ力−ゴンブラツク５０重量部、ステアリン酸３
重量部、亜鉛華５重量部、Ｎ−フェニル−Ｖ−（１，３
−ジメチルブチル）−Ｐ−フェニレンジアミン１重量部
、ノベンゾチアジルジスルフイド０、３ 重量部、Ｎ−
オキシジエチレン−２−ベンゾチアゾリルスルフェンア
ミド０．３重量部、イオウ２．５重量部と槙々の耐熱性
向上剤を各５重量部配合し１４５℃で２０分間加硫し加
硫物を調製した。l5AF Force - 50 parts by weight of Gonblack, 3 parts of stearic acid
parts by weight, 5 parts by weight of zinc white, N-phenyl-V-(1,3
-dimethylbutyl)-P-phenylenediamine 1 part by weight, nobenzothiazyl disulfide 0.3 parts by weight, N-
0.3 parts by weight of oxydiethylene-2-benzothiazolylsulfenamide, 2.5 parts by weight of sulfur, and 5 parts by weight each of a heat resistance improver from Maki were mixed and vulcanized at 145°C for 20 minutes to obtain a vulcanized product. Prepared.
得られた各加硫物のプロウアウト温度は約７瓢×７■Ｘ
３．５ ｓａｗの加硫ゴム試料片を電気坩堝炉（いす
ず製作所類）に入れ、５℃間隔で２７５℃から３３０
’Ｃまでの各温度で約２０分間放置後、試料片を取り出
し半分に切り、内部に気泡が発生）シているか否かを肉
眼で観察し、気泡が発生した最初の温度をプロウアウト
温度とした。The plow-out temperature of each vulcanizate obtained was approximately 7×7×
3.5 Place the saw vulcanized rubber sample piece into an electric crucible furnace (Isuzu Seisakusho) and heat from 275°C to 330°C at 5°C intervals.
After being left at each temperature up to 'C for about 20 minutes, the sample piece was taken out, cut in half, and visually observed to see if air bubbles were generated inside.The temperature at which air bubbles first appeared was taken as the plowout temperature. .
得られた結果を〔表；配合と評価結果〕に示す。The obtained results are shown in [Table; Formulation and evaluation results].
この結果より次のことが判る。From this result, the following can be seen.
を配合したゴム組成物は、配合していない比較例１と比
較して、プロウアウト温度が２０℃〜４５℃上昇してお
）、耐熱性が非常に向上していることがわかる（実施例
１〜１４）。It can be seen that the rubber composition in which the rubber composition was blended had significantly improved heat resistance (the plow-out temperature increased by 20 to 45 °C) compared to Comparative Example 1 in which it was not blended (Example 1). ~14).
（イ）特に３個以上の一〇−Ｃ−ＣＨ−ＣＨ２基を有す
る化合物を配合したコ９ム組成物は、プロウアウト温度
が４０℃〜４５℃上昇しておシ、特に効果が大きい（実
施例１〜５）。(a) In particular, a composition containing a compound having three or more 10-C-CH-CH2 groups has a particularly large effect, with the plow-out temperature increasing by 40°C to 45°C. Examples 1-5).
金物に比較してや＼小さい（実施例１５）。It is rather small compared to hardware (Example 15).
に） なお、通常、耐熱性向上に効果があると考えられ
ているツクラックＭＢやツクラックＧ−１等の老防は、
このような高温でのプロウアウトに対して、全く効果が
ない（比較例２，３）。) In addition, anti-oxidants such as Tsukurak MB and Tsukurak G-1, which are usually considered to be effective in improving heat resistance,
There is no effect at all on plow-out at such high temperatures (Comparative Examples 2 and 3).
（発明の効果）
含有するゴム組成物とすることによシ、ジエン系ゴムの
耐熱性（プロウアウト温度の上昇）を大幅に向上するこ
とが出来た。(Effects of the Invention) The heat resistance (increase in plow-out temperature) of the diene rubber could be significantly improved by creating a rubber composition containing the above.
（２） このゴム組成物は、タイヤやベルト等の耐熱
性向上、ひいてはその性能向上に大きい効果を果すもの
と期待される。(2) This rubber composition is expected to have a great effect on improving the heat resistance of tires, belts, etc., and ultimately on improving their performance.
Claims (3)
系ゴムと加硫剤としてイオウおよび／またはイオウ供与
剤を含む系に対して、炭素原子と結合する２個以上の▲
数式、化学式、表等があります▼基（Ｒ；Ｈまたはアル
キル基）を 含有する化合物を添加することを特徴とする耐熱性を改
良したゴム組成物。(1) For a system containing diene rubber consisting of natural rubber and/or synthetic rubber and sulfur and/or sulfur donor as a vulcanizing agent, two or more ▲ that bond to carbon atoms
There are mathematical formulas, chemical formulas, tables, etc. ▼ A rubber composition with improved heat resistance characterized by the addition of a compound containing a group (R; H or alkyl group).
を含有する化 合物が、３個以上の▲数式、化学式、表等があります▼
基を含有す る化合物である特許請求の範囲第（１）項記載のゴム組
成物。(2) There are two or more ▲ mathematical formulas, chemical formulas, tables, etc. There are three or more ▲ mathematical formulas, chemical formulas, tables, etc. that contain compounds containing two or more groups ▼
The rubber composition according to claim (1), which is a compound containing a group.
１）項記載のゴム組成物。(3) Claim No. 1 in which the alkyl group is a methyl group (
The rubber composition described in item 1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29751886A JPS63150339A (en) | 1986-12-16 | 1986-12-16 | Rubber composition of improved heat resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29751886A JPS63150339A (en) | 1986-12-16 | 1986-12-16 | Rubber composition of improved heat resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63150339A true JPS63150339A (en) | 1988-06-23 |
Family
ID=17847555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29751886A Pending JPS63150339A (en) | 1986-12-16 | 1986-12-16 | Rubber composition of improved heat resistance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63150339A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0859024A1 (en) * | 1997-02-12 | 1998-08-19 | The Goodyear Tire & Rubber Company | A sulfur-vulcanized rubber compound having improved reversion resistance |
| EP0879843A1 (en) * | 1997-05-23 | 1998-11-25 | Shin-Etsu Chemical Co., Ltd. | Rubber compositions for adhesion to organic resins and integrally bonded moldings |
| JPH11302458A (en) * | 1998-04-24 | 1999-11-02 | Bridgestone Corp | Rubber composition and pneumatic tire using the same |
| WO2001057129A1 (en) * | 2000-02-04 | 2001-08-09 | Bridgestone Corporation | Rubber composition and pneumatic tire made with the same |
| GB2360784A (en) * | 2000-03-31 | 2001-10-03 | Goodyear Tire & Rubber | Antireversion agent for inserts used in runflat tires |
| JP2009299066A (en) * | 2009-08-10 | 2009-12-24 | Bridgestone Corp | Rubber composition for reinforcing sidewall section and run flat tire |
| JP4521074B2 (en) * | 1998-06-08 | 2010-08-11 | 株式会社ブリヂストン | Rubber composition and pneumatic tire using the same |
| JP2013159740A (en) * | 2012-02-07 | 2013-08-19 | Toyo Tire & Rubber Co Ltd | Rubber composition for tire tread and pneumatic tire |
| JP2014009249A (en) * | 2012-06-27 | 2014-01-20 | Sumitomo Rubber Ind Ltd | Rubber composition for tire and pneumatic tire using the same |
| JP2015231814A (en) * | 2014-06-10 | 2015-12-24 | 株式会社ブリヂストン | tire |
-
1986
- 1986-12-16 JP JP29751886A patent/JPS63150339A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0859024A1 (en) * | 1997-02-12 | 1998-08-19 | The Goodyear Tire & Rubber Company | A sulfur-vulcanized rubber compound having improved reversion resistance |
| EP0879843A1 (en) * | 1997-05-23 | 1998-11-25 | Shin-Etsu Chemical Co., Ltd. | Rubber compositions for adhesion to organic resins and integrally bonded moldings |
| JPH11302458A (en) * | 1998-04-24 | 1999-11-02 | Bridgestone Corp | Rubber composition and pneumatic tire using the same |
| JP4553274B2 (en) * | 1998-04-24 | 2010-09-29 | 株式会社ブリヂストン | Rubber composition and pneumatic tire using the same |
| JP4521074B2 (en) * | 1998-06-08 | 2010-08-11 | 株式会社ブリヂストン | Rubber composition and pneumatic tire using the same |
| WO2001057129A1 (en) * | 2000-02-04 | 2001-08-09 | Bridgestone Corporation | Rubber composition and pneumatic tire made with the same |
| GB2360784A (en) * | 2000-03-31 | 2001-10-03 | Goodyear Tire & Rubber | Antireversion agent for inserts used in runflat tires |
| JP2009299066A (en) * | 2009-08-10 | 2009-12-24 | Bridgestone Corp | Rubber composition for reinforcing sidewall section and run flat tire |
| JP2013159740A (en) * | 2012-02-07 | 2013-08-19 | Toyo Tire & Rubber Co Ltd | Rubber composition for tire tread and pneumatic tire |
| JP2014009249A (en) * | 2012-06-27 | 2014-01-20 | Sumitomo Rubber Ind Ltd | Rubber composition for tire and pneumatic tire using the same |
| JP2015231814A (en) * | 2014-06-10 | 2015-12-24 | 株式会社ブリヂストン | tire |
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