JPH0615216B2 - Method for manufacturing oil resistant rubber hose - Google Patents
Method for manufacturing oil resistant rubber hoseInfo
- Publication number
- JPH0615216B2 JPH0615216B2 JP62315046A JP31504687A JPH0615216B2 JP H0615216 B2 JPH0615216 B2 JP H0615216B2 JP 62315046 A JP62315046 A JP 62315046A JP 31504687 A JP31504687 A JP 31504687A JP H0615216 B2 JPH0615216 B2 JP H0615216B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- layer
- hose
- rubber hose
- unvulcanized
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は主として自動車の燃料油系統や潤滑油系統など
に使用される耐油性ゴムホースの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a method for producing an oil resistant rubber hose mainly used in fuel oil systems and lubricating oil systems of automobiles.
〈従来の技術〉 従来、このような目的に使用される耐油性ゴムホースは
アクリロニトリルブタジエン系ゴムからなる内管ゴム層
を有するものが一般的であった。しかし、最近の自動車
産業においては環境汚染問題や経済性などの社会的要求
から、例えば燃料油系ゴムホースにおいては、エンジン
ルームの高温化や高圧循環に伴う燃料油の酸化により内
管ゴム層が硬化劣化し、また、アルコール混合ガソリン
による軟化や大気中への透過量の増大の問題も生じ、使
用出来なくなってきている。潤滑油系ゴムホースにおい
ても、高温による潤滑油の酸化劣化や近年急速に使用さ
れてきた合成潤滑油により、内管ゴム層が著しく劣化す
ることが判明している。<Prior Art> Conventionally, an oil resistant rubber hose used for such a purpose generally has an inner tube rubber layer made of acrylonitrile butadiene rubber. However, in the recent automobile industry, due to social requirements such as environmental pollution problems and economical efficiency, for example, in fuel oil type rubber hoses, the inner rubber layer is hardened due to the oxidation of fuel oil accompanying the high temperature of the engine room and the high pressure circulation. Deterioration, and problems such as softening due to alcohol-blended gasoline and increase in the amount of permeation into the atmosphere also occur, making it unusable. It has been found that in a lubricating oil type rubber hose, the inner rubber layer is significantly deteriorated due to the oxidative deterioration of the lubricating oil due to high temperature and the synthetic lubricating oil which has been rapidly used in recent years.
そこで、このような厳しい条件での耐油性に優れた内管
ゴム材料としてフッ素ゴムが使用されるようになってき
た。Therefore, fluororubber has come to be used as an inner tube rubber material having excellent oil resistance under such severe conditions.
〈発明が解決しようとする問題点〉 しかし、フッ素ゴムは大変高価であるため、内管ゴム層
をフッ素ゴムからなる薄肉の内側層と低コストゴム材料
からなる外側層の二重構造としたゴムホースが種々提案
されている。ところが、フッ素ゴムと他のゴムとの層間
接着が大変困難で、これらの接着性を改良しようとする
提案が数多くなされているけれども、いまだ完全とはい
い難い。例えば、特公昭55−16830号、特公昭55−16831
号、特公昭55−2336号、特開昭55−51554号、特開昭54
−158481号、特公昭57−49391号、特公昭59−35787号な
どの提案は、いずれも成形プレスによる加圧加硫におい
ても接着状態は層間剥離であり、ホース製品では更に接
着力が低下するため、実用化が困難であった。<Problems to be solved by the invention> However, since fluororubber is very expensive, a rubber hose having a double structure of an inner tube rubber layer having a thin inner layer made of fluororubber and an outer layer made of a low-cost rubber material has been proposed. Various proposals have been made. However, interlayer adhesion between fluororubber and other rubbers is very difficult, and many proposals have been made to improve the adhesiveness between them, but it is still not perfect. For example, Japanese Patent Publication No. 55-16830, Japanese Patent Publication No. 55-16831
JP-B-55-2336, JP-A-55-51554, JP-A-54
Proposals such as -158481, Japanese Patent Publication No. 57-49391, and Japanese Patent Publication No. 59-35787 all cause delamination in the adhesive state even under pressure vulcanization by a molding press, further reducing the adhesive strength in hose products. Therefore, practical application was difficult.
また、特開昭56−121762号、特開昭61−140692号、特開
昭61−244545号、特開昭62−46641号、特開昭62−46642
号、特公昭61−16621号、特公昭61−16622号などの提案
は、少なくともいずれか一方の層が過酸化物加硫であ
り、たとえ層間接着力が充分であっても加硫中の酸素や
有機物の加硫阻害を避けるために、ホース表面を鉛や樹
脂で被覆するなどの特別の対策を必要とし、結果的にコ
ストアップにつながるのである。Further, JP-A-56-121762, JP-A-61-140692, JP-A-61-244545, JP-A-62-46641 and JP-A-62-46642.
Nos. 6,166,621 and 61,622 are proposed in that at least one of the layers is a peroxide vulcanizate, and even if the interlayer adhesive strength is sufficient, the oxygen during vulcanization is sufficient. In order to avoid vulcanization inhibition of organic substances and vulcanization of organic substances, special measures such as coating the surface of the hose with lead or resin are required, resulting in an increase in cost.
本発明はこのような事情に鑑み、耐油性ホースとしての
諸性能を満足し、内管ゴム層のフッ素ゴム内側層と低コ
ストゴム材料からなる外側層間の接着性が極めて優れ、
しかも安価に製造する製造方法を提供することを目的と
する。In view of such circumstances, the present invention satisfies various performances as an oil resistant hose, and the adhesion between the fluororubber inner layer of the inner tube rubber layer and the outer layer made of a low-cost rubber material is extremely excellent,
Moreover, it is an object of the present invention to provide a manufacturing method for manufacturing at low cost.
〈問題点を解決するための手段〉 本発明は内管ゴム層と外管ゴム層との間に補強糸層を有
するゴムホースを製造するに際して、フッ素ゴムからな
る内側層と極性基含有ゴムからなる外側層の二重の内管
ゴム層をフレキシブルマンドレルを使用することなく同
時に押出す工程により形成し、上記内管ゴム層の外面に
補強糸層及び未加硫外管ゴム層を配設し、得られた未加
硫ゴムホースにこの未加硫ゴムホースの内径より大なる
外径を有する全長に亘って同一径の金属製のマンドレル
を挿入した後、加圧加硫することを特徴とする。<Means for Solving Problems> The present invention comprises an inner layer made of fluororubber and a polar group-containing rubber when producing a rubber hose having a reinforcing thread layer between an inner rubber layer and an outer rubber layer. A double inner tube rubber layer of the outer layer is formed by a step of simultaneously extruding without using a flexible mandrel, and a reinforcing yarn layer and an unvulcanized outer tube rubber layer are disposed on the outer surface of the inner tube rubber layer, It is characterized in that a metal mandrel having the same diameter is inserted into the obtained unvulcanized rubber hose over the entire length having an outer diameter larger than the inner diameter of the unvulcanized rubber hose, and then pressure vulcanization is performed.
内管ゴム内側層のフッ素ゴムは、例えばフッ化ビニリデ
ン・六フッ化プロピレン共重合体やフッ化ビニリデン・
六フッ化プロピレン・四フッ化エチレン三元共重合体な
どの高度にフッ素化された共重合体を原料ゴムとし、こ
れに加硫系薬剤、金属酸化物などの副資材が適宜配合さ
れる。加硫系薬剤としては芳香族ポリオール化合物など
のポリオール加硫系薬剤が好ましい。The fluororubber of the inner tube rubber inner layer is, for example, vinylidene fluoride / hexafluoropropylene copolymer or vinylidene fluoride /
A highly fluorinated copolymer such as a propylene hexafluoride / tetrafluoroethylene terpolymer is used as a raw material rubber, and a vulcanizing agent, a secondary material such as a metal oxide, and the like are appropriately mixed therein. As the vulcanizing agent, a polyol vulcanizing agent such as an aromatic polyol compound is preferable.
内管ゴム外側層の極性基含有ゴムとしては塩素基を含有
するエピクロルヒドリン系ゴム、クロロスルホン化ポリ
エチレンゴム、塩素化ポリエチレンゴムなどがあり、こ
の中のエピクロルヒドリン系ゴムにはエピクロルヒドリ
ンホモポリマーやエピクロルヒドリンとエチレンオキサ
イドのコポリマー、更にこれらにアリルグリシジルエー
テルを加えたポリマーなどがある。また、アクリル基を
含有する極性基含有ゴムとしては、アクリロニトリルブ
タジエンゴムやその水素化物、エチレンアクリルゴムな
どがある。The polar group-containing rubber of the outer layer of the inner tube rubber includes epichlorohydrin-based rubber containing a chlorine group, chlorosulfonated polyethylene rubber, chlorinated polyethylene rubber, etc., among which epichlorohydrin-based rubber includes epichlorohydrin homopolymer or epichlorohydrin and ethylene. There are copolymers of oxide, and polymers obtained by adding allyl glycidyl ether to these. As the polar group-containing rubber containing an acrylic group, there are acrylonitrile butadiene rubber, its hydride, ethylene acrylic rubber and the like.
本発明においてこれらの極性基含有ゴムにテトラアルキ
ルホスホニウムベンゾトリアゾールを配合することによ
りフッ素ゴムとの層間接着力が著しく改良されることを
見い出した。このテトラアルキルホスホニウムベンゾト
リアゾールのアルキル基としてはブチル基が好ましいが
これに限定されることはない。従来、有機ホスホニウム
塩として、フッ素ゴム用加硫促進剤であるホスホニウム
クロライド化合物が公知であるが、充分な目的を達し得
なかったところ、本発明においてホスホニウムベンゾト
リアゾール化合物を見い出したのである。配合量は原料
ゴム100重量部当り0.1〜２重量部、好ましくは0.5〜１
重量部が適当である。またこれに加えてスコーチ防止剤
を配合すれば加工時のスコーチによる問題も発生しな
い。スコーチ防止剤としてはＮ−シクロヘキシルチオフ
タルイミドやスルホンアミド誘導体などが有効性が高
い。In the present invention, it has been found that blending these polar group-containing rubbers with a tetraalkylphosphonium benzotriazole significantly improves the interlayer adhesive strength with the fluororubber. A butyl group is preferable as the alkyl group of the tetraalkylphosphonium benzotriazole, but the alkyl group is not limited thereto. Conventionally, as an organic phosphonium salt, a phosphonium chloride compound which is a vulcanization accelerator for fluororubber has been known, but when a sufficient object could not be achieved, a phosphonium benzotriazole compound was found in the present invention. The compounding amount is 0.1 to 2 parts by weight, preferably 0.5 to 1 per 100 parts by weight of raw rubber.
Parts by weight are suitable. If a scorch inhibitor is added in addition to this, problems due to scorch during processing do not occur. As the anti-scorch agent, N-cyclohexyl thiophthalimide and sulfonamide derivative are highly effective.
内管ゴム外側層にエピクロルヒドリン系ゴムを使用する
場合はメルカプトイミダゾリン加硫系がフッ素ゴムとの
層間接着力に優れ好ましい。アクリロニトリルブタジエ
ン系ゴムを使用する場合はモルホリン・ジスルフィド加
硫系がフッ素ゴムとの層間接着力に優れスコーチ安定性
も高いことを見いだした。When an epichlorohydrin type rubber is used for the outer layer of the inner tube rubber, a mercaptoimidazoline vulcanization type is preferred because of its excellent interlayer adhesion with the fluororubber. When using acrylonitrile butadiene type rubber, it was found that the morpholine / disulfide vulcanization type has excellent interlaminar adhesion with fluororubber and high scorch stability.
内管ゴム層の外面に補強糸層を編み上げるに際し、編み
角を静止角（54゜44′）より小さな角度である50゜前後
とすれば、編み上げ速度も速くなり、後の未加硫ゴムホ
ースに全長に亘って同一径の金属製マンドレルを挿入す
る工程での作業性が向上し、挿入後の編み角も静止角に
近づき好ましい。When knitting the reinforcing thread layer on the outer surface of the inner tube rubber layer, if the knitting angle is around 50 °, which is smaller than the static angle (54 ° 44 '), the knitting speed will be faster and the unvulcanized rubber hose later The workability in the step of inserting the metal mandrel having the same diameter over the entire length is improved, and the knitting angle after insertion approaches the static angle, which is preferable.
外管ゴム層は公知の塩素基を含有するエピクロルヒドリ
ン系ゴム、クロロスルホン化ポリエチレン、クロロプレ
ンゴムなどが使用出来るが、エピクロルヒドリンとエチ
レンオキサイドとアリルグリシジルエーテルとの共重合
物が耐候性に優れ、このゴムのトリアジン加硫系は圧縮
永久歪みに優れさらに好ましい。The outer rubber layer may be made of known chlorine-containing epichlorohydrin-based rubber, chlorosulfonated polyethylene, chloroprene rubber, etc., but a copolymer of epichlorohydrin, ethylene oxide, and allyl glycidyl ether has excellent weather resistance. The triazine vulcanization system (1) is more preferable because of its excellent compression set.
未加硫ゴムホースにこの未加硫ゴムホースの内径より大
なる外径を有する全長に亘って同一径の金属製のマンド
レルを補強糸層の編み角を静止角に近づけて挿入するこ
とにより、ホース全体が均等に加圧されてホースの内径
を均等にし、内管ゴム層の層間を圧着し、加圧加硫後の
ゴムホースの層間接着力と耐圧性が向上するのである。
ここで全長に亘って同一径の金属製のマンドレルを所望
の曲がり形状とすれば、耐圧性に優れた耐油性曲がりゴ
ムホースが製造可能となるのも本発明の大きな特徴であ
る。By inserting a metal mandrel of the same diameter having an outer diameter larger than the inner diameter of this unvulcanized rubber hose into the unvulcanized rubber hose with the braiding angle of the reinforcing thread layer close to the static angle, Is uniformly pressed to make the inner diameter of the hose uniform, the layers of the inner tube rubber layer are pressure-bonded, and the interlayer adhesion and pressure resistance of the rubber hose after pressure vulcanization are improved.
It is a major feature of the present invention that an oil-resistant bent rubber hose having excellent pressure resistance can be manufactured by forming a metal mandrel having the same diameter over the entire length into a desired bent shape.
加圧加硫はゴム層に過酸化物加硫系を使用していないた
め酸素や有機物による加硫阻害の問題がなく、したがっ
て鉛や樹脂をホースの表面に被覆することなく直接蒸気
加硫ができるのである。Since pressure vulcanization does not use a peroxide vulcanization system for the rubber layer, there is no problem of vulcanization inhibition by oxygen or organic substances, and therefore direct steam vulcanization can be performed without coating the surface of the hose with lead or resin. You can do it.
〈実施例〉 以下、本発明を実施例に基づいて更に詳細に説明する。<Example> Hereinafter, the present invention will be described in more detail based on examples.
実施例１ 第１図に示す構造の耐油性ゴムホースを次のようにして
製造した。第１表(F-1)に示す配合からなるフッ素ゴム
未加硫組成物が内管ゴム内側層(1)、第２表(C-1)に示す
配合からなるエピクロルヒドリン系ゴム未加硫組成物が
内管ゴム外側層(2)となるように二重押出機によりフレ
キシブルマンドレルを使用することなく同時に押出し成
形した。この内管ゴムホースの内径は7.5mm、肉厚は2.0
mmでそのうち内側層の肉厚は約0.5mmであった。Example 1 An oil resistant rubber hose having the structure shown in FIG. 1 was manufactured as follows. The unvulcanized fluororubber composition having the composition shown in Table 1 (F-1) is the inner rubber layer (1), and the epichlorohydrin-based rubber unvulcanized composition having the composition shown in Table 2 (C-1). The material was simultaneously extruded by a double extruder without using a flexible mandrel so that the inner tube rubber outer layer (2) was formed. The inner rubber hose has an inner diameter of 7.5 mm and a wall thickness of 2.0.
The thickness of the inner layer was about 0.5 mm.
この内管ゴムホースにポリエステル繊維からなる補強糸
層(3)を編み角52゜でブレード編みにより編み上げ、そ
の外側に第２表(C-2)に示す配合からなるエピクロルヒ
ドリン系ゴム未加硫組成物を外管ゴム層(4)として押出
し被覆した。この未加硫ゴムホースの内径は7.0mmとな
った。この未加硫ゴムホースに外径が7.5mmの全長にわ
たって同一径の金属製マンドレルを圧縮空気を使って挿
入した。挿入後の補強糸層(3)はほぼ静止角となった。
これを、直接蒸気加硫により６kgf/cm2で２０分間加硫
した後、金属製マンドレルを引き抜いて、洗浄、加熱処
理して所望の耐油性ホースを得た。 A reinforcing yarn layer (3) made of polyester fiber was knitted on the inner rubber hose by braiding at a knitting angle of 52 °, and an epichlorohydrin-based rubber unvulcanized composition having the composition shown in Table 2 (C-2) on the outer side thereof. Was extrusion-coated as an outer tube rubber layer (4). The inner diameter of this unvulcanized rubber hose was 7.0 mm. A metal mandrel of the same diameter was inserted into this unvulcanized rubber hose over the entire length of 7.5 mm using compressed air. After the insertion, the reinforcing yarn layer (3) had an almost static angle.
This was vulcanized by direct steam vulcanization at 6 kgf / cm 2 for 20 minutes, then the metal mandrel was pulled out, washed and heat-treated to obtain a desired oil-resistant hose.
この耐油性ホース内に燃料油Ｃに３wt％のラウリルパー
オキサイドを添加したモデルサワーガソリンを60℃に加
温して８時間循環させた後、室温で16時間放置し更に12
0℃で96時間熱老化させるのを１サイクルとする複合劣
化試験を２サイクル行なった。In this oil resistant hose, model sour gasoline with 3 wt% of lauryl peroxide added to fuel oil C was heated to 60 ° C and circulated for 8 hours, then left at room temperature for 16 hours and further 12 hours.
Two cycles of a composite deterioration test were conducted in which one cycle was heat aging at 0 ° C. for 96 hours.
この複合劣化試験後のホースの破裂圧力は82kgf/cm
2（初期に対する変化率は−９％）であり、内管ゴム内
側層(1)と外側層(2)は層間剥離が出来ない程度の接着強
度を保持していた。The burst pressure of the hose after this composite deterioration test is 82 kgf / cm.
2 (the rate of change with respect to the initial stage was -9%), and the inner tube rubber inner layer (1) and the outer layer (2) retained the adhesive strength to the extent that delamination was not possible.
なお、このホースの内管ゴム内側層及び外側層と同一配
合の未加硫ゴム組成物でプレス加硫によりJISK6301の剥
離試験に規定された試験片を作成し、試験を行なった結
果、剥離強度は11kgf/25mmでゴム破断であった。Incidentally, an unvulcanized rubber composition having the same composition as the inner tube rubber inner layer and outer layer of this hose was used to prepare a test piece specified in the peel test of JIS K6301 by press vulcanization, and the result of the test was the peel strength. The rubber was broken at 11 kgf / 25 mm.
実施例２ 内管ゴム内側層(1)を第１表(F-2)に示す配合からなるフ
ッ素ゴム及び内管ゴム外側層(2)を第３表(N-1)に示す配
合からなるアクリロニトリルブタジエンゴムに置きかえ
た以外は実施例１と同様の製造方法により、実施例１と
ほぼ同様の寸法の耐油性ホースを得た。このホースを実
施例１と同様の複合劣化試験を行なった後のホースの破
裂圧力は75kgf/cm2（初期に対する変化率は−11.8％）
であり、内管ゴム内側層(1)と外側層(2)は層間剥離が出
来ないほどの接着強度を保持していた。Example 2 The inner tube rubber inner layer (1) has a composition shown in Table 1 (F-2) and the fluororubber inner layer rubber outer layer (2) has a composition shown in Table 3 (N-1). An oil resistant hose having substantially the same dimensions as in Example 1 was obtained by the same manufacturing method as in Example 1 except that the hose was replaced with acrylonitrile butadiene rubber. The hose burst pressure after this hose was subjected to the same composite deterioration test as in Example 1 was 75 kgf / cm 2 (change rate from the initial stage was -11.8%).
The inner tube rubber inner layer (1) and the outer tube rubber layer (2) had such adhesive strength that delamination was not possible.
なお、このホースの内管ゴム内側層及び外側層と同一配
合の未加硫ゴム組成物でプレス加硫によりJISK6301の剥
離試験に規定された試験片での剥離強度は9.5kgf/25mm
でゴム破断であった。 The inner tube rubber inner layer of this hose and the outer layer have the same composition as the unvulcanized rubber composition by press vulcanization and the peel strength of the test piece specified in the peel test of JIS K6301 is 9.5 kgf / 25 mm.
The rubber was broken.
〈発明の効果〉 以上詳述したように、本発明の製造方法による耐油性ゴ
ムホースは内管ゴム内側層のフッ素ゴムと外側層の極性
基含有ゴムとの層間接着力が著しく改良され、サワーガ
ソリン等が使用される苛酷な使用条件にも耐えうるので
ある。また、製造工程で従来適用されていたフレキシブ
ルマンドレルや鉛被覆なども必要とせず、この種の耐油
性ゴムホースでは困難とされていた曲がり形状のホース
も容易に製造することが可能となって発明の適用分野が
更に拡大する効果が得られたのである。<Effects of the Invention> As described in detail above, the oil-resistant rubber hose produced by the manufacturing method of the present invention has a significantly improved interlayer adhesion between the inner layer rubber inner layer fluororubber and the outer layer polar group-containing rubber. It is able to withstand the harsh conditions of use. Further, it does not require a flexible mandrel or lead coating that has been conventionally applied in the manufacturing process, and it is possible to easily manufacture a bent hose that has been difficult with this type of oil resistant rubber hose. The effect is that the field of application is further expanded.
第１図は本発明の製造方法による耐油性ゴムホースの軸
直角方向の断面図である。 (1)……内管ゴム内側層、(2)……内管ゴム外側層 (3)……補強糸層、(4)……外管ゴム層FIG. 1 is a cross-sectional view of an oil resistant rubber hose according to the manufacturing method of the present invention in a direction perpendicular to its axis. (1) …… Inner tube rubber inner layer, (2) …… Inner tube rubber outer layer (3) …… Reinforcing thread layer, (4) …… Outer tube rubber layer
Claims (4)
を有するゴムホースを製造するに際して、フッ素ゴムか
らなる内側層と極性基含有ゴムからなる外側層の二重の
内管ゴム層をフレキシブルマンドレルを使用することな
く同時に押出す工程により形成し、該内管ゴム層の外面
に補強糸層及び未加硫外管ゴム層を配設して得られた未
加硫ゴムホースに、該未加硫ゴムホースの内径より大な
る外径を有する全長に亘って同一径の金属製のマンドレ
ルを挿入した後、加圧加硫することを特徴とする耐油性
ゴムホースの製造方法。1. When manufacturing a rubber hose having a reinforcing thread layer between an inner rubber layer and an outer rubber layer, a double inner pipe having an inner layer made of fluororubber and an outer layer made of polar group-containing rubber. A rubber layer is formed by a step of extruding simultaneously without using a flexible mandrel, and an unvulcanized rubber hose obtained by disposing a reinforcing yarn layer and an unvulcanized outer tube rubber layer on the outer surface of the inner tube rubber layer. A method for producing an oil-resistant rubber hose, comprising inserting a metal mandrel having the same diameter over an entire length having an outer diameter larger than the inner diameter of the unvulcanized rubber hose, and then vulcanizing under pressure.
アルキルホスホニウムベンゾトリアゾールを含有するこ
とを特徴とする特許請求の範囲第１項記載の耐油性ゴム
ホースの製造方法。2. The method for producing an oil resistant rubber hose according to claim 1, wherein the polar group-containing rubber of the outer layer of the inner tube rubber contains tetraalkylphosphonium benzotriazole.
ム又はアクリロニトリルブタジエン系ゴムである特許請
求の範囲第１項又は第２項記載の耐油性ゴムホースの製
造方法。3. The method for producing an oil resistant rubber hose according to claim 1 or 2, wherein the polar group-containing rubber is epichlorohydrin type rubber or acrylonitrile butadiene type rubber.
ホリン・ジスルフィド加硫系である特許請求の範囲第３
項記載の耐油性ゴムホースの製造方法。4. An acrylonitrile butadiene rubber is a morpholine disulfide vulcanized rubber.
A method for manufacturing an oil resistant rubber hose as described in the item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62315046A JPH0615216B2 (en) | 1987-12-12 | 1987-12-12 | Method for manufacturing oil resistant rubber hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62315046A JPH0615216B2 (en) | 1987-12-12 | 1987-12-12 | Method for manufacturing oil resistant rubber hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01156057A JPH01156057A (en) | 1989-06-19 |
| JPH0615216B2 true JPH0615216B2 (en) | 1994-03-02 |
Family
ID=18060778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62315046A Expired - Lifetime JPH0615216B2 (en) | 1987-12-12 | 1987-12-12 | Method for manufacturing oil resistant rubber hose |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0615216B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011075003A (en) * | 2009-09-30 | 2011-04-14 | Ono Rubber Kogyo Kk | Bending foamed rubber hose and method of manufacturing bending foamed rubber hose |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2650777B1 (en) * | 1989-08-09 | 1991-11-29 | Hutchinson Sa | FLEXIBLE PIPE WITH GOOD CHARACTERISTICS OF RESISTANCE TO EXTERNAL AGGRESSIONS AND MANUFACTURING METHOD THEREOF |
| JP5117780B2 (en) * | 2007-07-09 | 2013-01-16 | 株式会社ブリヂストン | Manufacturing method of rubber molding |
| JP5563857B2 (en) * | 2010-03-24 | 2014-07-30 | 株式会社ニチリン | Vulcanized adhesive laminate of fluororubber and synthetic rubber |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5549250A (en) * | 1978-10-02 | 1980-04-09 | Tokai Rubber Ind Ltd | Duct for circulating gasoline |
| US4435352A (en) * | 1981-09-04 | 1984-03-06 | The Goodyear Tire & Rubber Company | Method for making a hose having an index mark |
| JPS58132538A (en) * | 1982-02-03 | 1983-08-06 | Hitachi Cable Ltd | Vulcanization method and tube expanding jig of tubular composite rubber |
| JPS6033662B2 (en) * | 1982-03-23 | 1985-08-03 | 東海ゴム工業株式会社 | Rubber hose for gasoline circulation pipe connection |
| JPS6033663B2 (en) * | 1982-03-23 | 1985-08-03 | 東海ゴム工業株式会社 | Rubber hose for gasoline circulation pipe connection |
| JPS6219414A (en) * | 1985-07-19 | 1987-01-28 | Tokai Rubber Ind Ltd | Manufacture of molded rubber hose |
| JPS6246642A (en) * | 1985-08-24 | 1987-02-28 | 豊田合成株式会社 | Manufacture of rubber laminate |
-
1987
- 1987-12-12 JP JP62315046A patent/JPH0615216B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011075003A (en) * | 2009-09-30 | 2011-04-14 | Ono Rubber Kogyo Kk | Bending foamed rubber hose and method of manufacturing bending foamed rubber hose |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01156057A (en) | 1989-06-19 |
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