JPS6126579B2 - - Google Patents
Info
- Publication number
- JPS6126579B2 JPS6126579B2 JP10148278A JP10148278A JPS6126579B2 JP S6126579 B2 JPS6126579 B2 JP S6126579B2 JP 10148278 A JP10148278 A JP 10148278A JP 10148278 A JP10148278 A JP 10148278A JP S6126579 B2 JPS6126579 B2 JP S6126579B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- adhesion
- weight
- rubber composition
- examples
- 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
- 229920001971 elastomer Polymers 0.000 claims description 34
- 239000005060 rubber Substances 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000004327 boric acid Substances 0.000 claims description 6
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 125000005619 boric acid group Chemical group 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- 229920003051 synthetic elastomer Polymers 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 9
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 8
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 150000001642 boronic acid derivatives Chemical class 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- NPXFUIWZQKUEQK-UHFFFAOYSA-N 6-chloro-1h-pyrrolo[2,3-b]pyridine-3-carboxylic acid Chemical compound ClC1=CC=C2C(C(=O)O)=CNC2=N1 NPXFUIWZQKUEQK-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- LGQXXHMEBUOXRP-UHFFFAOYSA-N tributyl borate Chemical compound CCCCOB(OCCCC)OCCCC LGQXXHMEBUOXRP-UHFFFAOYSA-N 0.000 description 2
- 239000004636 vulcanized rubber Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- DQVXWCCLFKMJTQ-UHFFFAOYSA-N (4-methylphenoxy)boronic acid Chemical compound CC1=CC=C(OB(O)O)C=C1 DQVXWCCLFKMJTQ-UHFFFAOYSA-N 0.000 description 1
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 description 1
- MHKLKWCYGIBEQF-UHFFFAOYSA-N 4-(1,3-benzothiazol-2-ylsulfanyl)morpholine Chemical compound C1COCCN1SC1=NC2=CC=CC=C2S1 MHKLKWCYGIBEQF-UHFFFAOYSA-N 0.000 description 1
- 239000004594 Masterbatch (MB) Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229920003049 isoprene rubber Polymers 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- CMAUJSNXENPPOF-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-n-cyclohexylcyclohexanamine Chemical compound C1CCCCC1N(C1CCCCC1)SC1=NC2=CC=CC=C2S1 CMAUJSNXENPPOF-UHFFFAOYSA-N 0.000 description 1
- 229940032017 n-oxydiethylene-2-benzothiazole sulfenamide Drugs 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- AJSTXXYNEIHPMD-UHFFFAOYSA-N triethyl borate Chemical compound CCOB(OCC)OCC AJSTXXYNEIHPMD-UHFFFAOYSA-N 0.000 description 1
- WRECIMRULFAWHA-UHFFFAOYSA-N trimethyl borate Chemical compound COB(OC)OC WRECIMRULFAWHA-UHFFFAOYSA-N 0.000 description 1
- LTEHWCSSIHAVOQ-UHFFFAOYSA-N tripropyl borate Chemical compound CCCOB(OCCC)OCCC LTEHWCSSIHAVOQ-UHFFFAOYSA-N 0.000 description 1
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 1
Description
本発明は、ゴム組成物に関し、更に詳しくはゴ
ムに所定量の有機硼酸塩を添加した組成物に関す
る。すなわち、本発明のゴム組成物は、未加硫時
におけるゴム組成物の吸水によつて、加硫接着時
の接着性が低下するのを有効に防止し、安定した
接着力を得ることを特徴とするものであり、スチ
ールタイヤ等のスチールコードの被覆ゴムに好ま
しく利用される。
従来、スチールタイヤ等のスチールコードとゴ
ムを接着させるには、一般には真鍮、青銅等の銅
合金をメツキしたスチールコードを用いており、
このようなスチールコードは表面にメツキされた
銅合金とゴム組成物中に配合された硫黄によつて
ゴムと金属との界面に硫化物架橋が行われ接着が
達成されることが知られている。この方法は容易
で有用な方法であるが種々の要因によつて接着性
が不安定になる。例えば温度、湿度、保管方法、
保管時間等の条件により接着性は大巾に左右され
る。特に未加硫のゴム組成物が吸水しやすい環境
条件に放置されるとゴム組成物中の水分が接着形
成を著しく阻害する。
また、一般にゴム製品の製造に当つては未加硫
ゴムの混練りから接着加硫を行なう間、長時間を
経過することが多く特に我国のような高温多湿な
気象条件下では製造工程中未加硫ゴム組成物が空
気中の水分を吸収することは避けられない。
これらの改良を目的として特開昭52−43851、
や特公昭49−2518、特公昭50−36478等に示され
る方法が提案されている。特に特公昭49−2518や
特公昭50−36478で示されているゴム組成物に硼
酸、無水硼酸、硼酸金属塩を加える方法は加硫時
の接着性を安定化する効果は大きく中でも硼酸金
属塩の効果はきわめて大きい。しかしながらこれ
らの配合剤を加えることによつて加硫時の接着性
は確かに安定するが、加硫接着後にワイヤーとゴ
ムの複合体の動的接着性が著るしく低下する。
本発明はかかる従来の欠点を解消せんとしてな
されたもので、ゴム製品の製造中における未加硫
ゴムが吸水することによつて加硫時にスチールコ
ードとゴムの接着性が低下することを防止し、安
定した接着性を得るゴム組成物を提供することを
目的とし、特に加硫後の動的な接着性を損うこと
なく加硫時に安定した接着性を得ることができ
る。
本発明者らは、上述の目的達成のため種々研究
を重ねた結果、ゴム組成物と金属を接着するに当
りあらかじめゴム組成物中に有機硼酸塩を所定量
添加することによつて加硫後の動的接着性を損う
ことなく加硫時に安定した接着性を得ることを見
出し本発明を完成した。
本発明でゴムと接着される金属としては銅、亜
鉛及び真鍮、青銅等の銅合金である。
また本発明でいう有機硼酸塩とは硼酸の水素原
子を置換基を有するかまたは有しない、アルキル
基および／または芳香族基で置換した化合物をい
い、次の構造式で示すようなものである。
上式中、ＲはC1〜C10のアルキル基、またはア
リール基を表わす。上記アルキル基中、C1〜C5
のアルキル基が好ましい。上式で示される具体的
な有機硼酸塩化合物として、トリメチルボレー
ト、トリエチルボレート、トリ−ｎ−プロピルボ
レート、トリ−ｎ−ブチルボレート、ヘキシルメ
タボレート、トリ−ｍ，ｐ−クレジルボレート、
トリ−ｍ，ｐ−フエノールボレート等が挙げられ
る。
さらに、本発明で使用される有機硼酸塩の他の
例として、硼酸のグリコール塩、例えば下記の式
で表わされるトリ−ヘキシレングリコールビボレ
ート
等も使用できる。
本発明で添加する有機硼酸塩の量は、原料エラ
ストマー100重量部あたり0.1ないし10重量部であ
り、さらに0.1ないし５重量部が好ましい。0.1重
量部未満では、本発明の効果が得られにくく、ま
た10重量部を超えると加硫ゴムの物性例えばモジ
ユラス引張強さの低下を伴うので好ましくない。
また、原料エラストマーとしては通常の方法で加
硫可能な天然ゴムまたは合成ゴムポリイソプレ
ン、あるいはこれらのブレンドが使用される。
以下、実施例、標準例および比較例により本発
明をさらに詳しく説明する。
実施例１〜23、標準例１〜３および比較例１〜５
第１表および第２表に示す配合に従つてゴム組
成物を調製した。すなわち、硫黄、加硫促進剤
（OBS：Ｎ−オキシジエチレン−２−ベンゾチア
ゾールスルフエンアミド、DZ：Ｎ，Ｎ−ジシク
ロヘキシル−２−ベンゾチアゾールスルフエンア
ミド）以外の原料ゴム及び配合剤（実施例におい
ては有機硼酸塩を所定量含む）をバンバリー型ミ
キサーにて混合したマスターバツチに残りの配合
剤をオープンロールで加えてゴム組成物を調製し
た。
〔接着試験〕
12.5ｍ／ｍ間隔で平行に並べた黄銅メツキ
（Cu／Zn＝70/30）スチールコード（１×５構造
素線径0.25ｍ／ｍ）の両側からゴム組成物をコー
テイングし、埋め込み幅12.5ｍ／ｍにしたフアブ
リツクを温度30℃、相対湿度86％の雰囲気に０〜
３週間放置した後、160℃×20分加熱し、試験サ
ンプルとし、ASTM−D2229に準拠してワイヤー
を引抜き、その時の引抜力（Kg）とゴム被覆率
（％）で評価した。
動的接着はガードナー（Gardner）らの方法に
準じコンプレツシヨン（Compression）型の試験
（サンプルの中央にワイヤーを埋め込み、くり返
し圧縮疲労をあたえる）を行なつた。接着性は処
理後のワイヤー引抜力で評価した。処理はグツド
リツチフレクソメータを用い、ASTMD623に準
じた方法（回転速度1800r・ｐ・ｍ、静荷重25
Kg、歪4.44mm100℃、50分間）で行なつた。
第１表中、未加硫放置後の接着性はトリ−ｍ−
ブチルボレートにおいて見られるように0.05重量
部ではあまり効果は見られず、0.1重量部加える
と効果が現われる。しかし２重量部では飽和に達
しており５重量部以上加えてもあまり変らない。
（標準例１、比較例１、実施例１〜６）
また実施例７〜９、および実施例10〜13はトリ
−ｍ，ｐ−クレジルボレートおよびトリ−ヘキシ
レングリコールをそれぞれ配合した実施例であり
この場合においても接着力および動的接着性の改
善効果が明らかである。
一方、比較例２〜４から分かるように、硼酸亜
鉛を加えたものは、未加硫放置後の接着性は有機
硼酸塩と同様効果があるが動的接着性がきわめて
劣つている。
次に原料エラストマーとして天然ゴムとイソプ
レンゴムの50/50ブレンドを採用し、これに有機
硼酸塩を所定量配合した（実施例14〜17）。この
場合、有機硼酸塩を配合しない例を標準例２とし
て第２表に示す。接着力試験は前記の如くであ
る。第２表からも分かるように、ブレンドに対し
ても本発明の効果は明らかである。
加硫促進剤としてOBSを使用し、トリ−ｍ−
ブチルボレート、トリ−ｍ，ｐ−クレジルボレー
ト、トリ−ヘキシレングリコールビボレートをそ
れぞれ配合し、前記と同様の試験を行つた。
この場合においても第２表に示されるように、
所期の効果を得ることができた。
The present invention relates to a rubber composition, and more particularly to a composition in which a predetermined amount of an organic borate is added to rubber. That is, the rubber composition of the present invention is characterized in that it effectively prevents the adhesion during vulcanization from decreasing due to water absorption of the rubber composition during unvulcanization, and obtains stable adhesive strength. It is preferably used as a coating rubber for steel cords such as steel tires. Conventionally, steel cords plated with copper alloys such as brass and bronze have been used to bond rubber to steel cords such as steel tires.
It is known that such steel cords achieve adhesion by sulfide crosslinking at the interface between the rubber and metal due to the copper alloy plated on the surface and the sulfur mixed in the rubber composition. . Although this method is easy and useful, the adhesiveness becomes unstable due to various factors. For example, temperature, humidity, storage method,
Adhesive properties vary depending on conditions such as storage time. In particular, if an unvulcanized rubber composition is left in an environment where it tends to absorb water, the moisture in the rubber composition will significantly inhibit adhesive formation. Additionally, in general, when manufacturing rubber products, it often takes a long time from kneading unvulcanized rubber to adhesive vulcanization, especially under hot and humid weather conditions like in our country. It is inevitable that vulcanized rubber compositions absorb moisture from the air. For the purpose of these improvements, Japanese Patent Application Laid-Open No. 52-43851,
, Japanese Patent Publication No. 49-2518, Japanese Patent Publication No. 36478-1973, etc. have been proposed. In particular, the method of adding boric acid, boric anhydride, or boric acid metal salts to a rubber composition as shown in Japanese Patent Publication No. 49-2518 and Japanese Patent Publication No. 50-36478 has the greatest effect of stabilizing the adhesive properties during vulcanization, especially boric acid metal salts. The effect is extremely large. However, although the addition of these compounding agents certainly stabilizes the adhesion during vulcanization, the dynamic adhesion of the wire-rubber composite after vulcanization adhesion is significantly reduced. The present invention has been made to overcome these conventional drawbacks, and is designed to prevent the deterioration of the adhesion between steel cord and rubber during vulcanization due to water absorption in unvulcanized rubber during the manufacture of rubber products. The purpose of the present invention is to provide a rubber composition that can obtain stable adhesive properties, and in particular can provide stable adhesive properties during vulcanization without impairing dynamic adhesive properties after vulcanization. As a result of various studies to achieve the above-mentioned objective, the present inventors discovered that when bonding a rubber composition and a metal, by adding a predetermined amount of organic borate to the rubber composition in advance, The present invention was completed by discovering that stable adhesion can be obtained during vulcanization without impairing dynamic adhesion. The metals to be bonded to rubber in the present invention include copper, zinc, and copper alloys such as brass and bronze. In addition, the organic borate as used in the present invention refers to a compound in which the hydrogen atom of boric acid is substituted with an alkyl group and/or an aromatic group, with or without a substituent, as shown by the following structural formula. . In the above formula, R represents a C1 to C10 alkyl group or an aryl group. In the above alkyl group, C 1 to C 5
The alkyl group is preferred. Specific organic borate compounds represented by the above formula include trimethylborate, triethylborate, tri-n-propylborate, tri-n-butylborate, hexyl metaborate, tri-m,p-cresylborate,
Examples include tri-m,p-phenolborate and the like. Furthermore, other examples of organic borates used in the present invention include glycol salts of boric acid, such as tri-hexylene glycol biborate represented by the following formula: etc. can also be used. The amount of organic borate added in the present invention is 0.1 to 10 parts by weight, more preferably 0.1 to 5 parts by weight, per 100 parts by weight of the raw material elastomer. If it is less than 0.1 part by weight, it is difficult to obtain the effects of the present invention, and if it exceeds 10 parts by weight, the physical properties of the vulcanized rubber, such as modulus tensile strength, are undesirably reduced.
Further, as the raw material elastomer, natural rubber or synthetic rubber polyisoprene, which can be vulcanized by a conventional method, or a blend thereof is used. Hereinafter, the present invention will be explained in more detail with reference to Examples, Standard Examples, and Comparative Examples. Examples 1 to 23, Standard Examples 1 to 3, and Comparative Examples 1 to 5 Rubber compositions were prepared according to the formulations shown in Tables 1 and 2. That is, raw rubber and compounding agents other than sulfur, vulcanization accelerator (OBS: N-oxydiethylene-2-benzothiazolesulfenamide, DZ: N,N-dicyclohexyl-2-benzothiazolesulfenamide) (Example A rubber composition was prepared by adding the remaining ingredients using an open roll to a masterbatch prepared by mixing a predetermined amount of an organic borate in a Banbury type mixer. [Adhesion test] Rubber composition was coated on both sides of brass-plated (Cu/Zn=70/30) steel cords (1×5 structure strand diameter 0.25 m/m) arranged in parallel at 12.5 m/m intervals, A fabric with an embedded width of 12.5 m/m was placed in an atmosphere of 30°C and relative humidity of 86%.
After being left for 3 weeks, it was heated at 160° C. for 20 minutes, used as a test sample, and the wire was pulled out in accordance with ASTM-D2229, and evaluated by the pulling force (Kg) and rubber coverage (%) at that time. For dynamic adhesion, a compression type test (a wire was embedded in the center of the sample and repeated compression fatigue was applied) was conducted according to the method of Gardner et al. Adhesion was evaluated by the wire pulling force after treatment. The processing was carried out using a Gutudoritsu flexometer, using a method according to ASTMD623 (rotation speed 1800 r/p/m, static load 25
Kg, strain 4.44mm, 100℃, 50 minutes). In Table 1, the adhesion after being left unvulcanized is
As seen with butyl borate, 0.05 part by weight does not have much effect, but an effect appears when 0.1 part by weight is added. However, saturation is reached at 2 parts by weight, and there is no significant change even if 5 parts by weight or more is added.
(Standard Example 1, Comparative Example 1, Examples 1 to 6) Examples 7 to 9 and Examples 10 to 13 are examples in which tri-m, p-cresyl borate and tri-hexylene glycol were blended, respectively. Even in this case, the effect of improving adhesive strength and dynamic adhesiveness is clear. On the other hand, as can be seen from Comparative Examples 2 to 4, those to which zinc borate was added had the same effect on adhesion as organic borates after being left unvulcanized, but were extremely poor in dynamic adhesion. Next, a 50/50 blend of natural rubber and isoprene rubber was used as the raw material elastomer, and a predetermined amount of organic borate was blended therein (Examples 14 to 17). In this case, an example in which no organic borate is blended is shown in Table 2 as Standard Example 2. The adhesion test was as described above. As can be seen from Table 2, the effect of the present invention is also evident on blends. Using OBS as a vulcanization accelerator, tri-m-
Butylborate, tri-m,p-cresylborate, and tri-hexylene glycol biborate were each blended, and the same tests as above were conducted. In this case as well, as shown in Table 2,
I was able to get the desired effect.
【表】【table】
【表】【table】
【表】【table】
【表】
以上述べたように有機硼酸塩を配合した本発明
のゴム組成物は、未加硫放置後のワイヤコードと
ゴムの接着に対する安定化にきわめて効果があ
り、しかも加硫接着後の動的接着性を損うことな
く安定した接着性が得られるという効果を奏す
る。[Table] As described above, the rubber composition of the present invention containing an organic borate is extremely effective in stabilizing the adhesion between the wire cord and the rubber after being left unvulcanized, and is also highly effective in stabilizing the adhesion between the wire cord and rubber after being left unvulcanized. The effect is that stable adhesion can be obtained without impairing target adhesion.
Claims (1)
ンゴム100重量部に対し、硼酸の水素原子を置換
基を有するかまたは有しない、アルキル基およ
び／または芳香族基で置換した化合物0.1〜10重
量部を添加したことを特徴とする、銅または銅合
金でメツキされたスチールコードとの接着性のよ
いスチールコード被覆ゴム組成物。1. To 100 parts by weight of natural rubber and/or synthetic polyisoprene rubber, 0.1 to 10 parts by weight of a compound in which the hydrogen atom of boric acid is substituted with an alkyl group and/or an aromatic group with or without a substituent is added. A steel cord-coated rubber composition having good adhesion to steel cord plated with copper or copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10148278A JPS5529520A (en) | 1978-08-22 | 1978-08-22 | Rubber composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10148278A JPS5529520A (en) | 1978-08-22 | 1978-08-22 | Rubber composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5529520A JPS5529520A (en) | 1980-03-01 |
| JPS6126579B2 true JPS6126579B2 (en) | 1986-06-21 |
Family
ID=14301926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10148278A Granted JPS5529520A (en) | 1978-08-22 | 1978-08-22 | Rubber composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5529520A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6097450A (en) * | 1983-10-31 | 1985-05-31 | Fujitsu Ltd | Detecting method of defective memory card |
| DE3807096A1 (en) * | 1988-03-04 | 1989-09-14 | Bayer Ag | METHOD FOR PRODUCING RUBBER / METAL COMPOSITE MATERIALS WITH HIGH RUBBER / METAL LIABILITY |
| JP5356090B2 (en) * | 2009-03-30 | 2013-12-04 | 東洋ゴム工業株式会社 | Rubber composition for covering steel cord and pneumatic tire |
| JP5565442B2 (en) * | 2012-10-05 | 2014-08-06 | 横浜ゴム株式会社 | Rubber composition and pneumatic tire using the same |
| JP5565427B2 (en) * | 2012-03-19 | 2014-08-06 | 横浜ゴム株式会社 | Rubber composition for tire and pneumatic tire using the same |
| CN104220508B (en) * | 2012-03-19 | 2016-05-04 | 横滨橡胶株式会社 | The pneumatic tire that rubber composition obtains with using this rubber composition |
| JP2023023662A (en) * | 2021-08-05 | 2023-02-16 | 株式会社ブリヂストン | Crosslinking method of elastomer |
| JP2023023661A (en) * | 2021-08-05 | 2023-02-16 | 株式会社ブリヂストン | Method for restoring crosslinked site of crosslinked elastomer to uncrosslinked state |
| JP2023023660A (en) * | 2021-08-05 | 2023-02-16 | 株式会社ブリヂストン | Crosslinked elastomer and method for producing the same |
-
1978
- 1978-08-22 JP JP10148278A patent/JPS5529520A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5529520A (en) | 1980-03-01 |
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