JPS6322847A - High-loss rubber composition - Google Patents
High-loss rubber compositionInfo
- Publication number
- JPS6322847A JPS6322847A JP7404186A JP7404186A JPS6322847A JP S6322847 A JPS6322847 A JP S6322847A JP 7404186 A JP7404186 A JP 7404186A JP 7404186 A JP7404186 A JP 7404186A JP S6322847 A JPS6322847 A JP S6322847A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- rubber composition
- properties
- resin
- dicyclopentadiene
- 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 47
- 239000000203 mixture Substances 0.000 title claims abstract description 25
- ZSWFCLXCOIISFI-UHFFFAOYSA-N cyclopentadiene Chemical compound C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 22
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 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 claims abstract description 18
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 9
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 9
- 229920001194 natural rubber Polymers 0.000 claims abstract description 9
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 abstract description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052794 bromium Inorganic materials 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000013016 damping Methods 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000000116 mitigating effect Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-methylbut-2-ene Chemical compound CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- IAQRGUVFOMOMEM-UHFFFAOYSA-N but-2-ene Chemical compound CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- QMMOXUPEWRXHJS-UHFFFAOYSA-N pentene-2 Natural products CCC=CC QMMOXUPEWRXHJS-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000010734 process oil Substances 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- MHNNAWXXUZQSNM-UHFFFAOYSA-N 2-methylbut-1-ene Chemical compound CCC(C)=C MHNNAWXXUZQSNM-UHFFFAOYSA-N 0.000 description 1
- YHQXBTXEYZIYOV-UHFFFAOYSA-N 3-methylbut-1-ene Chemical compound CC(C)C=C YHQXBTXEYZIYOV-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- XNMQEEKYCVKGBD-UHFFFAOYSA-N dimethylacetylene Natural products CC#CC XNMQEEKYCVKGBD-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920005555 halobutyl Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N penta-1,3-diene Chemical compound CC=CC=C PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000010399 physical interaction Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- -1 softeners Substances 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は高ロスゴム組成物に係り、特に自動車、各種機
械等の振動に対する防振、制振、並びに地震に対する免
震、除震など振動エネルギーの伝達緩和、吸収装置に使
用するに好適な高ロス特性を有するゴム組成物に関する
。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a high-loss rubber composition, and is particularly applicable to vibration isolation and damping of automobiles, various machines, etc., as well as seismic isolation and damping of earthquakes. The present invention relates to a rubber composition having high loss properties suitable for use in transmission mitigation and absorption devices.
［従来の技術］
各種の振動エネルギーの伝達緩和、吸収装置には、通常
、高ロス特性を有するゴム組成物が使用されているが、
従来、このような用途に供するゴム組成物には、高ロス
特性をもたせるために、カーボンを多量に配合すると共
に、加工性を改善し、加硫後の伸び特性を改善する目的
で軟化剤を添加使用している。[Prior Art] Rubber compositions with high loss characteristics are usually used in various types of vibration energy transmission mitigation and absorption devices.
Conventionally, rubber compositions used for such purposes have been blended with a large amount of carbon in order to have high loss properties, and have also been mixed with softeners to improve processability and elongation properties after vulcanization. Additives are used.
［発明が解決しようとする問題点］
しかしながら、軟化剤を添加したゴム組成物では、軟化
剤自体がゴムタＰ性を有さず、しかもゴムとの間に反応
が生じないため、加硫ゴムの物性の低下をまねく場合が
多かった。[Problems to be Solved by the Invention] However, in a rubber composition containing a softener, the softener itself does not have rubber properties and does not react with the rubber. This often led to a decline in physical properties.
一方、ハイスチレン配合のＳＢＨのように、ゴムそのも
のが常温で高ロス特性を有するものもあるが、このゴム
は、使用する温度によってそのりｉ外車及びロス特性が
大きく変動するため、実使用においては安定した性能を
得ることはできないという問題があった。On the other hand, the rubber itself has high loss characteristics at room temperature, such as SBH containing high styrene, but the loss characteristics of this rubber vary greatly depending on the temperature at which it is used, so it cannot be used in actual use. The problem was that stable performance could not be obtained.
［問題点を解決するための手段及び作用］本発明の高ロ
スゴム組成物は、シクロペンタジェン樹脂及び／又はジ
シクロペンタジェン８１１ｔｔを、天然ゴムを主成分と
するゴム１００重ω一部に対し、１５〜ｌ ＯＯｌ 計
部配合してなるものである。[Means and effects for solving the problems] The high-loss rubber composition of the present invention contains cyclopentadiene resin and/or dicyclopentadiene 811tt for a portion of 100 wt ω of rubber whose main component is natural rubber. , 15~lOOl.
かかる本発明によれば、シクロペンタジェン樹Ｉｌｌび
／又はシンクロペンタジェン樹脂の配合により、天然ゴ
ムの高ロス性を具備すると共に、その温度依存性、破壊
特性、接着性等が著しく改善された高ロスゴム組成物が
提供される。According to the present invention, by blending a cyclopentadiene resin and/or a synchropentadiene resin, it has the high loss properties of natural rubber, and its temperature dependence, fracture properties, adhesive properties, etc. are significantly improved. A high loss rubber composition is provided.
即ち、本発明者らは、高ロス特性に優れている上に、温
度依存性や破壊特性、接着性等の特性にも優れるゴム組
成物を得るべく鋭意検討を重ねたところ、特定のシクロ
ペンタジェン樹脂又はジシクロペンタジェン樹脂が、ゴ
ムの加工性を改善し、加硫時にはゴムとの間に化学的反
応又は物理的な相互作用が生じてゴム特性の向上に寄与
することを見出した。具体的には、シクロペンタジェン
８４脂又はジシクロペンタジェン樹脂は、通常のプロセ
スオイルに比べ。That is, the present inventors conducted intensive studies to obtain a rubber composition that not only has excellent high loss properties but also has excellent properties such as temperature dependence, fracture properties, and adhesive properties, and found that a specific cyclopenta It has been found that the gene resin or dicyclopentadiene resin improves the processability of rubber, and that a chemical reaction or physical interaction occurs with the rubber during vulcanization, contributing to improvement of the rubber properties. Specifically, cyclopentadiene 84 fat or dicyclopentadiene resin is compared to normal process oil.
■ ゴムに配合する際の作業性が良く、発熱も小さい。■ Good workability when compounding into rubber, and generates little heat.
■ 配合による破壊特性の低下が小さい。■ There is little decrease in fracture properties due to blending.
・■ これらを天然ゴムに配合したものは、温度依存性
が低く、かつゴムー金居接着性が良好であル、シかも、
通常のプロセスオイルにみらレル長期使用時の移行がほ
とんど認められず、ゴム特性の長期安定性にも優れるこ
となどが確認された。・■ Those blended with natural rubber have low temperature dependence and good rubber-to-metal adhesion.
It was confirmed that almost no migration was observed in ordinary process oil during long-term use, and that the rubber properties were excellent in long-term stability.
本発明はこのような知見に基きなされたものである。The present invention was made based on this knowledge.
以下に本発明の詳細な説明する。The present invention will be explained in detail below.
本発明において、天然ゴムを主成分とするゴムに配合す
るシクロペンタジェン樹脂又はジシクロペンタジェン樹
脂とは、シクロペンタジェン又はジシクロペンタジェン
を主体とする石油樹脂であって、シクロペンタジェン又
はジシクロペンタジェンと、これと共重合可能なオレフ
ィン類炭化水素との共重合体、あるいは、シクロペンタ
ジェン及び／又はジシクロペンタジェンの重合体を言う
、なお、これらの樹脂には、シクロペンタジェン、ジシ
クロペンタジェン又はシクロペンタジェンとジシクロペ
ンタジェンとの混合の重量で、樹脂重量の３０重量％以
上、好ましくは５０重量％以上含有されていることが必
要とされる。In the present invention, the cyclopentadiene resin or dicyclopentadiene resin blended into the rubber whose main component is natural rubber is a petroleum resin whose main component is cyclopentadiene or dicyclopentadiene. This refers to a copolymer of dicyclopentadiene and an olefinic hydrocarbon copolymerizable with it, or a polymer of cyclopentadiene and/or dicyclopentadiene. It is required that the content of the resin is 30% by weight or more, preferably 50% by weight or more of the resin weight, based on the weight of diene, dicyclopentadiene, or a mixture of cyclopentadiene and dicyclopentadiene.
ナオ、シクロペンタジェン又はジシクロペンタジェンと
共重合可能なオレフィン類炭化水素としては、１−ブテ
ン、２−ブテン、イソブチレン。Examples of olefinic hydrocarbons copolymerizable with NaOH, cyclopentadiene, or dicyclopentadiene include 1-butene, 2-butene, and isobutylene.
１−ペンテン、２−ペンテン、２−メチル−１−ブテン
、３−メチル−１−ブテン、２−メチル−２−ブテン等
のオレフィン系炭化水素；ブタジェン、イソプレン、３
−メチルブタジェン１．２等のジオレフィン系炭化水素
；及びスチレン、α−メチルスチレン、ビニルトルエン
等のビニル置換芳香族炭化水素等が挙げられ、これらは
適当な触媒の存在下にシクロペンタジェン又はジシクロ
ペンタジェンとフリーデルクラフト反応等により共重合
可能である。Olefinic hydrocarbons such as 1-pentene, 2-pentene, 2-methyl-1-butene, 3-methyl-1-butene, 2-methyl-2-butene; butadiene, isoprene, 3
- diolefinic hydrocarbons such as methylbutadiene 1.2; and vinyl-substituted aromatic hydrocarbons such as styrene, α-methylstyrene, and vinyltoluene; Alternatively, it can be copolymerized with dicyclopentadiene by Friedel-Crafts reaction or the like.
本発明において、このようなシクロペンタジェン樹脂又
はジシクロペンタジェン樹脂は加硫ゴムの物性面での有
効性のためには、その分子量及び２型詰合の反応性を考
慮した場合、軟化点（虜球式ＪＩＳ Ｋ−５９０２）
が５０〜２００℃、臭素価（ＡＳＴＭ Ｄ−１１５８
−５７７）が４０〜１５０の範囲であることが好ましい
、より好ましい軟化点は８０〜１５０°Ｃであり、より
好ましい臭素価は５０〜１５０である。In the present invention, in order for the cyclopentadiene resin or dicyclopentadiene resin to be effective in terms of the physical properties of vulcanized rubber, the softening point must be low when considering its molecular weight and reactivity of type 2 packing. (Captive ball type JIS K-5902)
is 50-200℃, bromine number (ASTM D-1158
-577) is preferably in the range of 40 to 150, the more preferred softening point is 80 to 150°C, and the more preferred bromine number is 50 to 150.
本発明において、これらのシクロペンタジェン樹脂及び
／又はジシクロペンタジェン樹脂の配合量は、得られる
ゴム組成物の加工性とゴムのロス特性の点から、天然ゴ
ムを主成分とするゴム１００重量部に対して１５〜１０
０重量部にする必要があり、好ましくは２０〜８０重量
部である。In the present invention, the blending amount of these cyclopentadiene resins and/or dicyclopentadiene resins is determined from the viewpoint of processability of the obtained rubber composition and rubber loss characteristics, based on the weight of 100% rubber mainly composed of natural rubber. 15 to 10 per portion
The amount should be 0 parts by weight, preferably 20 to 80 parts by weight.
なお１本発明のゴム組成物のゴム成分としては、天然ゴ
ムを主成分とし、必要に応じて、ＢＲ，ＮＢＲ、ブチル
ゴム、ハロゲン化ブチルゴム、クロロプレンゴムなどを
含有していても良い、この場合、ゴム成分中の天然ゴム
の割合は６０重量％以上であることが望ましい。Note that the rubber component of the rubber composition of the present invention is mainly composed of natural rubber, and may contain BR, NBR, butyl rubber, halogenated butyl rubber, chloroprene rubber, etc. as necessary. In this case, The proportion of natural rubber in the rubber component is preferably 60% by weight or more.
このような本発明のゴム組成物は、必要に応じて、各種
充填剤、老化防止剤、可塑材、軟化剤、オイル等、ゴム
材料に一般的な配合剤を含有していても良い。Such a rubber composition of the present invention may contain compounding agents commonly used in rubber materials, such as various fillers, anti-aging agents, plasticizers, softeners, oils, etc., as necessary.
本発明の高ロスゴム組成物は極めて優れた高口ス特性を
有し、しかも、温度依存性、破壊特性、接着性等も良好
であることから、振動エネルギーの吸収、緩和に係わる
ゴム材料として、防振、制振、免震等の装置に有効に適
用可能である。特に、本発明の高ロスゴム組成物を免震
装置に適用した場合には、その伸び特性、温度依存性、
ゴム−金属接着性及び長期物性の安定性といった面で、
優れた特性を有する製品を得ることが可能である。The high-loss rubber composition of the present invention has extremely excellent high-loss properties, and also has good temperature dependence, breaking properties, adhesive properties, etc., so it can be used as a rubber material for absorbing and mitigating vibration energy. It can be effectively applied to devices such as vibration isolation, damping, and seismic isolation. In particular, when the high loss rubber composition of the present invention is applied to a seismic isolation device, its elongation characteristics, temperature dependence,
In terms of rubber-metal adhesion and long-term stability of physical properties,
It is possible to obtain products with excellent properties.
【実施例］
以下に実施例及び比較例を挙げて本発明を更に具体的に
説明するが、本発明はその要旨を超えない限り、以下の
実施例に限定されるものではない。[Examples] The present invention will be described below in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to the following Examples unless it exceeds the gist thereof.
実施例１〜３．比較例１，２
第１表に示す組成のゴム組成物を製造し、各々、その物
性を調べた。結果を第１表に示す。Examples 1-3. Comparative Examples 1 and 2 Rubber compositions having the compositions shown in Table 1 were manufactured, and their physical properties were examined. The results are shown in Table 1.
第１表より、比較例１．２のゴム組成物では、７０マオ
イルを多量に使用しているところから、温度依存性及び
破断時伸びが著しく低いのに対し、ジシクロペンタジェ
ン樹脂を配合した実施例１〜３の本発明のゴム組成物で
は、ロス特性、温度依存性、ゴム破壊特性、接着性の品
持性がいずれも良好で４全体として非常にバランスがと
れていることが明らかである。From Table 1, the rubber composition of Comparative Example 1.2 uses a large amount of 70ma oil, so its temperature dependence and elongation at break are extremely low, whereas the rubber composition containing dicyclopentadiene resin It is clear that the rubber compositions of the present invention in Examples 1 to 3 had good loss properties, temperature dependence, rubber breaking properties, and adhesive properties, and were very well balanced overall. be.
第１表
木１： ジシクロペンタジェンの重合体、軟化点１１６
℃、臭素価６５゜
＊２： ｈｏｏ ２５°Ｃ１１００％引張変形時
の試料のヒステリシス比であり、ロス特性のメジャーと
した。なお、引張速れる。First table wood 1: Dicyclopentadiene polymer, softening point 116
°C, bromine number 65°*2: hoo This is the hysteresis ratio of the sample at 1100% tensile deformation at 25°C, and was used as a measure of loss characteristics. In addition, the tensile speed is increased.
と３０″Ｃにおける値Ｅ′ との比であり、温度依存
性の指標とした。and the value E' at 30''C, and was used as an index of temperature dependence.
木４： Ｅｂ（％） 引張速度３００ ｍｍ／ ｍ
ｉ ｎ テｆ）引張試験（２５℃）による破断時伸び
である。Wood 4: Eb (%) Tensile speed 300 mm/m
In Tef) Elongation at break measured by tensile test (25°C).
木５ ： Ｍｄｍ Ｃｋｇ／Ｃｍ’） 引張速度
３００ｍｍ／ｍｉｎでの引張試験（２５°Ｃ）による１
００％歪時の応力［発明の効果］
以上詳述した通り、本発明の高ロスゴム組成物は、ロス
特性に優れると共に、温度依存性、破壊特性、接着性等
の特性にも著しく優れていることから、各種の免震、除
震、防振、制振装置のゴム材料として極めて有効であり
、あらゆる環境下に長期間安定して、その高ロス特性を
発揮することができる。Wood 5: Mdm Ckg/Cm') 1 by tensile test (25°C) at a tensile speed of 300 mm/min
Stress at 00% strain [Effects of the invention] As detailed above, the high loss rubber composition of the present invention has excellent loss properties and is also extremely excellent in properties such as temperature dependence, fracture properties, and adhesive properties. Therefore, it is extremely effective as a rubber material for various types of seismic isolation, vibration isolation, vibration damping, and damping devices, and is stable for long periods of time in all environments and can exhibit its high loss characteristics.
このような本発明の高ロスゴム組成物は、特に免震ゴム
のゴム材料として極めて好適である。The high-loss rubber composition of the present invention is particularly suitable as a rubber material for seismic isolation rubber.
第１図は実施例及び比較例でヒステリシス比のΔ１１定
に用いた応力−歪曲線を示すグラフである。
代理人 弁理士 重 野 剛第１図
手続補正書
昭和６２年６月３日FIG. 1 is a graph showing stress-strain curves used to determine the hysteresis ratio Δ11 in Examples and Comparative Examples. Agent Patent Attorney Tsuyoshi Shigeno Diagram 1 Procedure Amendment June 3, 1986
Claims (1)
タジエン樹脂を、天然ゴムを主成分とするゴム１００重
量部に対し、１５〜１００重量部配合してなる高ロスゴ
ム組成物。(1) A high-loss rubber composition comprising 15 to 100 parts by weight of cyclopentadiene resin and/or dicyclopentadiene resin per 100 parts by weight of rubber whose main component is natural rubber.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61074041A JP2581670B2 (en) | 1986-03-31 | 1986-03-31 | Rubber composition for seismic isolation |
| US07/007,302 US4830927A (en) | 1986-02-07 | 1987-01-27 | Anti-seismic bearing and assembly of anti-seismic bearings |
| FR8701474A FR2594193B1 (en) | 1986-02-07 | 1987-02-06 | ANISISMIC SUPPORT AND ANISISMIC SUPPORT ASSEMBLY |
| US07/223,189 US4978581A (en) | 1986-02-07 | 1988-07-22 | Anti-seismic bearing |
| US07/317,700 US4933238A (en) | 1986-02-07 | 1989-03-01 | Anti-seismic bearing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61074041A JP2581670B2 (en) | 1986-03-31 | 1986-03-31 | Rubber composition for seismic isolation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6322847A true JPS6322847A (en) | 1988-01-30 |
| JP2581670B2 JP2581670B2 (en) | 1997-02-12 |
Family
ID=13535686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61074041A Expired - Lifetime JP2581670B2 (en) | 1986-02-07 | 1986-03-31 | Rubber composition for seismic isolation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2581670B2 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4838615A (en) * | 1971-09-17 | 1973-06-07 | ||
| JPS50138043A (en) * | 1974-04-23 | 1975-11-04 | ||
| JPS53115763A (en) * | 1977-03-18 | 1978-10-09 | Kanegafuchi Chem Ind Co Ltd | Composition comprising non-crystalline dicyclopentadiene ring-opened polymer and rubber |
| JPS55137143A (en) * | 1979-04-11 | 1980-10-25 | Sumitomo Chem Co Ltd | Rubber composition |
| JPS5638335A (en) * | 1979-09-05 | 1981-04-13 | Japan Synthetic Rubber Co Ltd | Rubber composition |
| JPS57128737A (en) * | 1981-02-02 | 1982-08-10 | Bridgestone Corp | Vibration damping material |
-
1986
- 1986-03-31 JP JP61074041A patent/JP2581670B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4838615A (en) * | 1971-09-17 | 1973-06-07 | ||
| JPS50138043A (en) * | 1974-04-23 | 1975-11-04 | ||
| JPS53115763A (en) * | 1977-03-18 | 1978-10-09 | Kanegafuchi Chem Ind Co Ltd | Composition comprising non-crystalline dicyclopentadiene ring-opened polymer and rubber |
| JPS55137143A (en) * | 1979-04-11 | 1980-10-25 | Sumitomo Chem Co Ltd | Rubber composition |
| JPS5638335A (en) * | 1979-09-05 | 1981-04-13 | Japan Synthetic Rubber Co Ltd | Rubber composition |
| JPS57128737A (en) * | 1981-02-02 | 1982-08-10 | Bridgestone Corp | Vibration damping material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2581670B2 (en) | 1997-02-12 |
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