JP2003014166A - Heat-resistant hose - Google Patents
Heat-resistant hoseInfo
- Publication number
- JP2003014166A JP2003014166A JP2001192520A JP2001192520A JP2003014166A JP 2003014166 A JP2003014166 A JP 2003014166A JP 2001192520 A JP2001192520 A JP 2001192520A JP 2001192520 A JP2001192520 A JP 2001192520A JP 2003014166 A JP2003014166 A JP 2003014166A
- Authority
- JP
- Japan
- Prior art keywords
- polyamide
- heat
- hose
- layer
- silica
- 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
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 37
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 22
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- 229920001971 elastomer Polymers 0.000 claims abstract description 17
- 230000002378 acidificating effect Effects 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000004132 cross linking Methods 0.000 claims abstract description 12
- 239000004952 Polyamide Substances 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 229920002647 polyamide Polymers 0.000 claims abstract description 10
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 9
- 239000011147 inorganic material Substances 0.000 claims abstract description 8
- 229920001577 copolymer Polymers 0.000 claims description 12
- 229920002292 Nylon 6 Polymers 0.000 claims description 8
- 229920000571 Nylon 11 Polymers 0.000 claims description 2
- 229920000299 Nylon 12 Polymers 0.000 claims description 2
- 229920001007 Nylon 4 Polymers 0.000 claims description 2
- 229920002126 Acrylic acid copolymer Polymers 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 9
- 230000014759 maintenance of location Effects 0.000 description 5
- 238000004073 vulcanization Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000004898 kneading Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- -1 salt compound Chemical class 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 241000156978 Erebia Species 0.000 description 2
- 241000282320 Panthera leo Species 0.000 description 2
- 101001062854 Rattus norvegicus Fatty acid-binding protein 5 Proteins 0.000 description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 2
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 101100219325 Phaseolus vulgaris BA13 gene Proteins 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- CYPPCCJJKNISFK-UHFFFAOYSA-J kaolinite Chemical compound [OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[O-][Si](=O)O[Si]([O-])=O CYPPCCJJKNISFK-UHFFFAOYSA-J 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229910001737 paragonite Inorganic materials 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910000275 saponite Inorganic materials 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、耐熱ホースに関
し、特に自動車や建設車両、産業用機械等のオイルクー
ラーホース、エアブレーキホースとして好適な耐熱ホー
スに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-resistant hose, and more particularly to a heat-resistant hose suitable as an oil cooler hose or an air brake hose for automobiles, construction vehicles, industrial machines and the like.
【０００２】[0002]
【従来の技術】従来、オイルクーラーホース等の耐熱ホ
ースの内層及び外層を形成するゴムとしては、耐熱性に
優れるエチレン−メチルアクリル酸共重合体が、補強層
としては、ポリアミド繊維が主として用いられてきた。
このような耐熱ホースは、１４０℃程度の温度領域で
は、実用上、ゴムや補強糸の劣化は少なく、問題はなか
った。ところが、近年、エンジンルーム内が高温化した
ことにより、１６０℃程度になると、特に問題が生じる
可能性があることかわかってきた。例えば、上記耐熱ホ
ースに流体を封入し、１６０℃の高温下に、７２時間放
置して老化させた後に破壊圧力を測定すると、保持率は
５０％以下に低下する。その原因は、ゴム中の酸性架橋
サイトや配合剤中の酸性物質が、熱雰囲気下ではポリア
ミド繊維の酸分解を引き起こすからである。上記保持率
の低下を防止するために、エチレン−メチルアクリル酸
共重合体にクロム，ニッケル等の金属塩化合物を添加し
て、酸性架橋サイトを中和させることにより、ポリアミ
ド繊維の酸分解を抑制する方法がとられてきた。しかし
ながら、クロム，ニッケル等の金属化合物は、環境上好
ましくないという問題がある。2. Description of the Related Art Conventionally, ethylene-methylacrylic acid copolymer, which is excellent in heat resistance, is mainly used as a rubber for forming an inner layer and an outer layer of a heat-resistant hose such as an oil cooler hose, and a polyamide fiber is mainly used as a reinforcing layer. Came.
In such a heat-resistant hose, in the temperature range of about 140 ° C., practically, rubber and the reinforcing yarn were less deteriorated and there was no problem. However, in recent years, it has become clear that a problem may occur particularly when the temperature of the engine room rises to about 160 ° C. due to a high temperature inside the engine room. For example, when a fluid is enclosed in the heat resistant hose and left to stand at a high temperature of 160 ° C. for 72 hours to be aged and then the breaking pressure is measured, the retention rate decreases to 50% or less. The reason is that acidic cross-linking sites in rubber and acidic substances in compounding agents cause acid decomposition of polyamide fibers in a hot atmosphere. In order to prevent the retention rate from decreasing, a metal salt compound such as chromium or nickel is added to the ethylene-methylacrylic acid copolymer to neutralize the acidic cross-linking site, thereby suppressing acid decomposition of the polyamide fiber. The method of doing has been taken. However, metal compounds such as chromium and nickel have the problem that they are not environmentally preferable.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、上記事情に
鑑みなされたもので、高温下でも、補強層を形成する補
強糸の劣化が少ない耐熱ホースを提供することを目的と
するものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a heat-resistant hose in which the reinforcing yarn forming the reinforcing layer is less deteriorated even at high temperatures. .
【０００４】[0004]
【課題を解決するための手段】本発明者らは、上記目的
を達成するために鋭意研究を重ねた結果、内層と外層と
の間にポリアミド系繊維補強層を有するホースにおい
て、内層及び外層を、特定量のシリカ系無機物を添加し
た、酸性架橋サイト含有エチレン−メチルアクリル酸共
重合体を主成分とするゴム組成物で形成することによ
り、加硫後に生じる酸遊離架橋サイトや配合剤中の酸性
物質がシリカによって吸着されるので、補強層を形成す
る補強糸が熱老化しても劣化の促進が抑制されることを
見出した。本発明は、かかる知見に基づいて完成したも
のである。すなわち、本発明は、内層と外層との間にポ
リアミド系繊維補強層を有するホースにおいて、内層及
び外層が、酸性架橋サイト含有エチレン−メチルアクリ
ル酸共重合体を主成分とするゴム組成物であって、酸性
架橋サイト含有エチレン−メチルアクリル酸共重合体１
００質量部に対してシリカ系無機物１〜３０質量部を含
むゴム組成物からなることを特徴とする耐熱ホースを提
供するものである。Means for Solving the Problems As a result of intensive studies to achieve the above object, the present inventors have found that in a hose having a polyamide fiber reinforced layer between an inner layer and an outer layer, the inner layer and the outer layer are , By adding a specific amount of silica-based inorganic material, by forming a rubber composition containing ethylene-methylacrylic acid copolymer containing an acidic cross-linking site as a main component, the acid free cross-linking site or compounding agent generated after vulcanization It has been found that since the acidic substance is adsorbed by silica, the deterioration of the reinforcing yarn forming the reinforcing layer is suppressed even if the reinforcing yarn is heat-aged. The present invention has been completed based on such findings. That is, the present invention is a hose having a polyamide fiber reinforced layer between the inner layer and the outer layer, the inner layer and the outer layer is a rubber composition containing an acidic cross-linking site-containing ethylene-methylacrylic acid copolymer as a main component. And ethylene-methylacrylic acid copolymer 1 containing an acidic cross-linking site
A heat resistant hose comprising a rubber composition containing 1 to 30 parts by mass of a silica-based inorganic material with respect to 00 parts by mass.
【０００５】[0005]
【発明の実施の形態】本発明の耐熱ホースの構造として
は、例えば図１に示す耐熱ホース１０が挙げられる。耐
熱ホース１０は、内層１と外層２との間に補強層３を設
けた構成とされている。補強層３はポリアミド系繊維
を、例えばスパイラル状（図２参照）、ブレード状（図
３参照）のように編んだものであり、内層１の上に配置
されている。本発明において、内層及び外層を形成する
ゴム組成物は、酸性架橋性サイト含有エチレン−メチル
アクリル酸共重合体を主成分とするものであればよい。
酸性架橋性サイト含有エチレン−メチルアクリル酸共重
合体の含有量は、内層及び外層を形成するゴム組成物中
２５〜７５質量％であることが好ましく、３５〜６５質
量％がより好ましい。本発明においては、酸性架橋性サ
イト含有エチレン−メチルアクリル酸共重合体に、他の
ポリマーを併用してもよい。他のポリマーとしては、ア
クリルポリマー，ＥＰＤＭ，ＮＢＲ，ＩＩＲ，ＨＮＢ
Ｒ，ＦＫＭ，ＮＲ，ＳＢＲ，ＣＲなどが挙げられる。ま
た、通常用いられる充填剤、加工助剤、老化防止剤、加
硫剤、加硫促進剤を、本発明の効果を損なわない範囲で
添加することができる。BEST MODE FOR CARRYING OUT THE INVENTION As a structure of the heat resistant hose of the present invention, for example, a heat resistant hose 10 shown in FIG. The heat-resistant hose 10 has a structure in which a reinforcing layer 3 is provided between an inner layer 1 and an outer layer 2. The reinforcing layer 3 is formed by knitting polyamide fibers in a spiral shape (see FIG. 2) or a blade shape (see FIG. 3), for example, and is arranged on the inner layer 1. In the present invention, the rubber composition forming the inner layer and the outer layer may be one having an acidic crosslinkable site-containing ethylene-methylacrylic acid copolymer as a main component.
The content of the acid-crosslinkable site-containing ethylene-methylacrylic acid copolymer is preferably 25 to 75% by mass, and more preferably 35 to 65% by mass in the rubber composition forming the inner layer and the outer layer. In the present invention, another polymer may be used in combination with the ethylene-methylacrylic acid copolymer containing an acidic crosslinkable site. Other polymers include acrylic polymers, EPDM, NBR, IIR, HNB
R, FKM, NR, SBR, CR and the like can be mentioned. Further, commonly used fillers, processing aids, antioxidants, vulcanizing agents, and vulcanization accelerators can be added within a range that does not impair the effects of the present invention.
【０００６】本発明においては、内層及び外層を形成す
るゴム組成物にシリカ系無機物を含有させる。なお、シ
リカ系無機物は環境上問題のない化合物である。シリカ
系無機物の配合量は、酸性架橋性サイト含有エチレン−
メチルアクリル酸共重合体１００質量部に対して１〜３
０質量部であるが、２〜２０質量部が好ましい。シリカ
無機物の配合量が１質量部未満であると、本発明の効果
を得ることができず、３０質量部を超えると、混練り時
に混練り機のロータへの密着性が強くなり、実用に供す
ることができない。シリカ系無機物として具体的には、
シリカ、含水非晶質二酸化けい素，含水けい酸アルミニ
ウム，けい砂，けい石粉末，カオリナイト，モンモリロ
ナイト，サポナイト，白雲母，パラゴナイト，シリカゲ
ルなどを挙げることができる。このうち本発明において
は、シリカ、含水非晶質二酸化けい素，含水けい酸アル
ミニウムが好ましい。In the present invention, the rubber composition forming the inner layer and the outer layer contains a silica-based inorganic material. The silica-based inorganic material is a compound that has no environmental problems. The amount of the silica-based inorganic material blended is such that the acidic crosslinkable site-containing ethylene-
1 to 3 with respect to 100 parts by mass of the methyl acrylic acid copolymer
It is 0 part by mass, but 2 to 20 parts by mass is preferable. If the amount of the silica inorganic compound is less than 1 part by mass, the effect of the present invention cannot be obtained, and if it exceeds 30 parts by mass, the adhesion to the rotor of the kneading machine becomes strong during kneading, which is suitable for practical use. I can't serve. Specifically as a silica-based inorganic substance,
Examples thereof include silica, hydrous amorphous silicon dioxide, hydrous aluminum silicate, silica sand, silica powder, kaolinite, montmorillonite, saponite, muscovite, paragonite, and silica gel. Of these, silica, hydrous amorphous silicon dioxide and hydrous aluminum silicate are preferred in the present invention.
【０００７】補強層を形成するポリアミド系繊維として
は、ポリアミド６，ポリアミド６／６，ポリアミド４／
６，ポリアミド６／１０，ポリアミド１１及びポリアミ
ド１２等が挙げられる。これらは単独で用いてもよく、
二種以上の混撚り物であってもよい。本発明において、
内層と補強層と外層の厚さの比（内層／補強層／外層）
は、１／１／0.５〜５／１／５が好ましく、1.３／１／
0.８〜４／１／3.８がより好ましい。本発明の耐熱ホー
スを製造する際のゴム組成物の加硫は、１１０〜１９０
℃で１０〜１８０分で行い、必要に応じて１１０〜１９
０℃で３０〜６００分の二次加硫を行なう。As the polyamide fiber forming the reinforcing layer, polyamide 6, polyamide 6/6, polyamide 4 /
6, polyamide 6/10, polyamide 11 and polyamide 12 and the like. These may be used alone,
It may be a mixed twist of two or more kinds. In the present invention,
Thickness ratio of inner layer, reinforcing layer and outer layer (inner layer / reinforcing layer / outer layer)
Is preferably 1/1 / 0.5 to 5/5/1, 1.3 / 1 /
0.8 to 4/1 / 3.8 is more preferable. Vulcanization of the rubber composition when producing the heat resistant hose of the present invention is 110-190.
10 to 180 minutes at ℃, 110 to 19 as needed
Secondary vulcanization is performed at 0 ° C. for 30 to 600 minutes.
【０００８】[0008]
【実施例】次に、本発明を実施例によりさらに詳しく説
明するが、本発明はこれらの例によってなんら限定され
るものではない。
実施例１〜６及び比較例１〜３
表１及び表２に示すゴム組成物で内層及び外層を形成
し、図１及び図２に示す形状の耐熱ホースを作製した。
表１及び表２に示すゴム組成物を、直径7.６ｍｍのマン
ドル上に厚み約1.６ｍｍに押し出し、内層１とした。こ
の内層１の上に太さ１４００ｄｅｘ、６回／１０ｃｍ撚
りの東レ製６６ナイロン（商品名：＃１７８１）を１２
本引き揃えてスパイラル上に巻きつけ、更にその上に逆
向きに二層目を、１２本引き揃えて巻きつけ、補強層３
を形成した。この補強層３の上に、表１及び表２に示す
ゴム組成物を厚み約1.３ｍｍに押し出し、外層２とし、
ホース状物を形成した。このホース状物を、１５０℃で
１時間加硫し、マンドルを引き出した後、１５０℃で４
時間二次加硫を行ない、ホースを作製した。得られたホ
ースに、油（ＡＴＦオイル、ＤｅｘｒｏｎIII ）を封入
し、１６０℃の雰囲気下で７２時間老化処理を行い、そ
の後、破裂圧の低下をＪＡＳＯ Ｍ３１９により測定し
た。老化前の破裂圧を１００としたときの破裂圧の保持
率を表１及び表２に示す。保持率が７０％以上の場合を
○とし、保持率が７０％未満の場合を×とした。また、
混練り性については、ロータに粘着せず、首尾よく混練
できたものを○、ロータに密着してしまい、首尾よく混
練できなかった場合を×とした。表１及び表２に示す結
果から、実施例においては、破裂圧及び混練性ともに良
好であり、良好な耐熱ホースが得られたことがわかる。EXAMPLES Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples. Examples 1 to 6 and Comparative Examples 1 to 3 Inner layers and outer layers were formed from the rubber compositions shown in Tables 1 and 2 to prepare heat resistant hoses having the shapes shown in FIGS. 1 and 2.
The rubber compositions shown in Tables 1 and 2 were extruded on a mandrel having a diameter of 7.6 mm to a thickness of about 1.6 mm to obtain an inner layer 1. 12 Toray 66 nylon (trade name: # 1781) manufactured by Toray with a thickness of 1400 dex and twisted 6 times / 10 cm on the inner layer 1
Align and wrap it around the spiral, and then lay the 12 layers of the second layer in the opposite direction on the spiral.
Was formed. On the reinforcing layer 3, the rubber compositions shown in Tables 1 and 2 were extruded to a thickness of about 1.3 mm to form an outer layer 2,
A hose was formed. This hose-like material was vulcanized at 150 ° C for 1 hour, and after pulling out the mandrel,
Secondary vulcanization was carried out for an hour to produce a hose. The obtained hose was filled with oil (ATF oil, Dexron III) and aged for 72 hours in an atmosphere of 160 ° C., after which the decrease in burst pressure was measured by JASO M319. The burst pressure retention rates when the burst pressure before aging is 100 are shown in Tables 1 and 2. When the retention rate was 70% or more, it was evaluated as ◯, and when the retention rate was less than 70%, it was evaluated as x. Also,
Regarding the kneading properties, those that could be successfully kneaded without sticking to the rotor were evaluated as ◯, and those that could not be successfully kneaded due to the close contact with the rotor were evaluated as x. From the results shown in Tables 1 and 2, it can be seen that in Examples, the burst pressure and the kneading property were good, and a good heat-resistant hose was obtained.
【０００９】[0009]
【表１】 [Table 1]
【００１０】（注）
＊１：デュポン社製、酸性架橋サイト含有エチレン−メ
チルアクリル酸共重合体
＊２：旭カーボン社製、ＦＥＦ
＊３：花王社製
＊４：日本シリカ工業社製
＊５：ライオンアクゾ社製
＊６：東邦化学社製
＊７：アデカ・アーガス化学社製
＊８：住友化学工業社製
＊９：大内新興化学工業社製(Note) * 1: DuPont, ethylene-methylacrylic acid copolymer containing acidic cross-linking sites * 2: Asahi Carbon Co., Ltd., FEF * 3: Kao Co., Ltd. * 4: Nippon Silica Industry Co., Ltd. * 5 : Lion Akzo * 6: Toho Kagaku * 7: Adeka Argus Chemical * 8: Sumitomo Chemical * 9: Ouchi Shinko Chemical
【００１１】[0011]
【表２】 [Table 2]
【００１２】（注）
＊１：デュポン社製、酸性架橋サイト含有エチレン−メ
チルアクリル酸共重合体
＊２：旭カーボン社製、ＦＥＦ
＊３：花王社製
＊４：日本シリカ工業社製
＊５：ライオンアクゾ社製
＊６：東邦化学社製
＊７：アデカ・アーガス化学社製
＊８：住友化学工業社製
＊９：大内新興化学工業社製(Note) * 1: DuPont, ethylene-methylacrylic acid copolymer containing acidic cross-linking sites * 2: Asahi Carbon Co., Ltd., FEF * 3: Kao * 4: Nippon Silica Industry * 5 : Lion Akzo * 6: Toho Kagaku * 7: Adeka Argus Chemical * 8: Sumitomo Chemical * 9: Ouchi Shinko Chemical
【００１３】[0013]
【発明の効果】本発明の耐熱ホースは、高温下でも、補
強層を形成する補強糸の劣化が少ないものである。INDUSTRIAL APPLICABILITY The heat-resistant hose of the present invention has little deterioration of the reinforcing yarn forming the reinforcing layer even at high temperatures.
【図１】 本発明の耐熱ホースの一例を示す断面図であ
る。FIG. 1 is a cross-sectional view showing an example of a heat-resistant hose of the present invention.
【図２】 本発明の耐熱ホースにおける補強層の形状の
一例を示す図である。FIG. 2 is a diagram showing an example of the shape of a reinforcing layer in the heat resistant hose of the present invention.
【図３】 本発明の耐熱ホースにおける補強層の形状の
他の例を示す図である。FIG. 3 is a diagram showing another example of the shape of the reinforcing layer in the heat resistant hose of the present invention.
１ 内層 ２ 外層 ３ 補強層 1 Inner layer 2 outer layer 3 Reinforcing layer
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０８Ｌ 23/08 Ｃ０８Ｌ 23/08 Ｆターム(参考） 3H111 AA02 BA13 BA25 BA34 CA53 CB04 CB14 CB21 CC03 CC19 DA11 DB02 DB11 EA04 4F100 AA20A AA20C AK04A AK04C AK25A AK25C AK46B AK48B AL01A AL01C AL05A AL05C AN02A AN02C BA02 BA03 BA08 BA10A BA10C DA11 DE01A DE01C DG01B DG07B DH00B EJ05A EJ05C EJ06 GB32 GB51 JB20A JB20C JJ03 JL00 4J002 BB071 BG041 DJ006 DJ016 DJ036 DJ056 GF00 GM00 GN00 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) C08L 23/08 C08L 23/08 F term (reference) 3H111 AA02 BA13 BA25 BA34 CA53 CB04 CB14 CB21 CC03 CC19 DA11 DB02 DB11 EA04 4F100 AA20A AA20C AK04A AK04C AK25A AK25C AK46B AK48B AL01A AL01C AL05A AL05C AN02A AN02C BA02 BA03 BA08 BA10A BA10C DA11 DE01A DE01C DG01B DG07B DH00B EJ05A EJ05C EJ06 GB32 GB51 JB20A JB20C JJ03 JL00 4J002 BB071 BG041 DJ006 DJ016 DJ036 DJ056 GF00 GM00 GN00
Claims (4)
強層を有するホースにおいて、内層及び外層が、酸性架
橋サイト含有エチレン−メチルアクリル酸共重合体を主
成分とするゴム組成物であって、該酸性架橋サイト含有
エチレン−メチルアクリル酸共重合体１００質量部に対
してシリカ系無機物１〜３０質量部を含むゴム組成物か
らなることを特徴とする耐熱ホース。1. A hose having a polyamide fiber reinforcing layer between an inner layer and an outer layer, wherein the inner layer and the outer layer are rubber compositions containing an ethylene-methylacrylic acid copolymer containing an acidic crosslinking site as a main component. A heat-resistant hose comprising a rubber composition containing 1 to 30 parts by mass of a silica-based inorganic material with respect to 100 parts by mass of the ethylene-methylacrylic acid copolymer containing the acidic cross-linking site.
アミド６／６，ポリアミド４／６，ポリアミド６／１
０，ポリアミド１１及びポリアミド１２から選ばれるも
のである請求項１に記載の耐熱ホース。2. The polyamide fiber is polyamide 6, polyamide 6/6, polyamide 4/6, polyamide 6/1.
The heat resistant hose according to claim 1, which is selected from 0, polyamide 11 and polyamide 12.
１又は２に記載の耐熱ホース。3. The heat-resistant hose according to claim 1, wherein the silica-based inorganic material is silica.
ースとして用いるものである請求項１〜３のいずれかに
記載の耐熱ホース。4. The heat-resistant hose according to claim 1, which is used as an oil cooler hose and an air brake hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001192520A JP4801850B2 (en) | 2001-06-26 | 2001-06-26 | Heat resistant hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001192520A JP4801850B2 (en) | 2001-06-26 | 2001-06-26 | Heat resistant hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003014166A true JP2003014166A (en) | 2003-01-15 |
| JP4801850B2 JP4801850B2 (en) | 2011-10-26 |
Family
ID=19030960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001192520A Expired - Fee Related JP4801850B2 (en) | 2001-06-26 | 2001-06-26 | Heat resistant hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4801850B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2410308A (en) * | 2004-01-20 | 2005-07-27 | Uponor Innovation Ab | Pipe with polar resin inner layer |
| JP2008132641A (en) * | 2006-11-28 | 2008-06-12 | Bridgestone Corp | Cylindrical flexible film body |
| CN100451417C (en) * | 2007-06-22 | 2009-01-14 | 天津鹏翎胶管股份有限公司 | Turbine booster hose of ethyleneacrylate rubber and its production |
| JP2012067212A (en) * | 2010-09-24 | 2012-04-05 | Bridgestone Corp | Refrigerant transportation hose and polyamide resin composition for forming gas barrier layer thereof |
| ITRM20120318A1 (en) * | 2012-07-06 | 2014-01-07 | Sati Tek S R L | SELECTIVE POLYMERIC MEMBRANE, IN PARTICULAR FOR METAL-AIR ALKALINE BATTERIES, AND METAL-AIR BATTERY THAT INCLUDES THIS MEMBRANE. |
| CN107084285A (en) * | 2017-04-10 | 2017-08-22 | 山东美晨科技股份有限公司 | A kind of ethylene-acrylate rubber turbine pressurized hose and preparation method thereof |
| CN111396650A (en) * | 2019-10-21 | 2020-07-10 | 周明 | High-temperature high-pressure steam boiler hose and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61201981A (en) * | 1985-02-28 | 1986-09-06 | 豊田合成株式会社 | Hose |
| JPH09227749A (en) * | 1996-02-20 | 1997-09-02 | Denki Kagaku Kogyo Kk | Elastomer composition and rubber hose |
| JPH1128788A (en) * | 1997-07-08 | 1999-02-02 | Tokai Rubber Ind Ltd | Rubber laminated material and rubber hose composed thereof |
| JPH11246749A (en) * | 1997-12-10 | 1999-09-14 | Advanced Elastomer Syst Lp | High temperature, oil resistant, thermoplastic vulcanizates made from polar plastics and acrylate or ethylene / acrylate elastomers |
-
2001
- 2001-06-26 JP JP2001192520A patent/JP4801850B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61201981A (en) * | 1985-02-28 | 1986-09-06 | 豊田合成株式会社 | Hose |
| JPH09227749A (en) * | 1996-02-20 | 1997-09-02 | Denki Kagaku Kogyo Kk | Elastomer composition and rubber hose |
| JPH1128788A (en) * | 1997-07-08 | 1999-02-02 | Tokai Rubber Ind Ltd | Rubber laminated material and rubber hose composed thereof |
| JPH11246749A (en) * | 1997-12-10 | 1999-09-14 | Advanced Elastomer Syst Lp | High temperature, oil resistant, thermoplastic vulcanizates made from polar plastics and acrylate or ethylene / acrylate elastomers |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2410308A (en) * | 2004-01-20 | 2005-07-27 | Uponor Innovation Ab | Pipe with polar resin inner layer |
| GB2410308B (en) * | 2004-01-20 | 2008-06-25 | Uponor Innovation Ab | Multilayer pipe |
| JP2008132641A (en) * | 2006-11-28 | 2008-06-12 | Bridgestone Corp | Cylindrical flexible film body |
| CN100451417C (en) * | 2007-06-22 | 2009-01-14 | 天津鹏翎胶管股份有限公司 | Turbine booster hose of ethyleneacrylate rubber and its production |
| JP2012067212A (en) * | 2010-09-24 | 2012-04-05 | Bridgestone Corp | Refrigerant transportation hose and polyamide resin composition for forming gas barrier layer thereof |
| ITRM20120318A1 (en) * | 2012-07-06 | 2014-01-07 | Sati Tek S R L | SELECTIVE POLYMERIC MEMBRANE, IN PARTICULAR FOR METAL-AIR ALKALINE BATTERIES, AND METAL-AIR BATTERY THAT INCLUDES THIS MEMBRANE. |
| CN107084285A (en) * | 2017-04-10 | 2017-08-22 | 山东美晨科技股份有限公司 | A kind of ethylene-acrylate rubber turbine pressurized hose and preparation method thereof |
| CN111396650A (en) * | 2019-10-21 | 2020-07-10 | 周明 | High-temperature high-pressure steam boiler hose and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| JP4801850B2 (en) | 2011-10-26 |
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