JPH0243870Y2 - - Google Patents
Info
- Publication number
- JPH0243870Y2 JPH0243870Y2 JP12834482U JP12834482U JPH0243870Y2 JP H0243870 Y2 JPH0243870 Y2 JP H0243870Y2 JP 12834482 U JP12834482 U JP 12834482U JP 12834482 U JP12834482 U JP 12834482U JP H0243870 Y2 JPH0243870 Y2 JP H0243870Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- recoverable
- adhesive layer
- steel pipe
- rust preventive
- 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
- 239000012790 adhesive layer Substances 0.000 claims description 16
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 230000003449 preventive effect Effects 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- -1 polyethylene Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 2
- 239000012964 benzotriazole Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- XBPCUCUWBYBCDP-UHFFFAOYSA-N Dicyclohexylamine Chemical compound C1CCCCC1NC1CCCCC1 XBPCUCUWBYBCDP-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 244000028419 Styrax benzoin Species 0.000 description 1
- 235000000126 Styrax benzoin Nutrition 0.000 description 1
- 235000008411 Sumatra benzointree Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000013556 antirust agent Substances 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- 125000003354 benzotriazolyl group Chemical class N1N=NC2=C1C=CC=C2* 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Laminated Bodies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Description
【考案の詳細な説明】
本考案は熱回復性物品の改良に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in heat-recoverable articles.
従来、石油、ガス等の輸送鋼管の外面防食用或
いは鋼管溶接部の外面防食用として、熱回復性基
材の表面に接着剤層を形成した熱回復性物品が用
いられている。 2. Description of the Related Art Conventionally, heat-recoverable articles having an adhesive layer formed on the surface of a heat-recoverable base material have been used to protect the outer surfaces of steel pipes for transporting oil, gas, etc., or to protect the outer surfaces of welded joints of steel pipes.
これら、従来の熱回復性物品は使用に際しバー
ナー等で加熱し、熱収縮させて鋼管表面に密着さ
せるものであるが、鋼管表面に凹凸や段差がある
場合、凹凸部や段差部において熱回復性物品が密
着せず、小間〓が形成されることがあつた。かよ
うな小間〓が形成されると鋼管表面が空気に曝さ
れることになり、錆を生じ易いが、これを防止す
る有効な手段は未だ得られていない。 These conventional heat-recoverable products are heated with a burner, etc. before use, and are heat-shrinked to adhere tightly to the surface of the steel pipe. In some cases, items did not fit closely together, resulting in the formation of a booth. When such a booth is formed, the surface of the steel pipe is exposed to the air, which tends to cause rust, but no effective means for preventing this has yet been found.
本考案は従来技術の有する上記問題を解決した
熱回復性物品に係り、熱回復性基材の表面に接着
剤層および気化性防錆剤を均一に分散せしめた接
着剤層が互に隣接するように設けられて成るもの
である。 The present invention relates to a heat-recoverable article that solves the above-mentioned problems of the prior art, in which an adhesive layer and an adhesive layer in which a volatile rust preventive agent is uniformly dispersed are adjacent to each other on the surface of a heat-recoverable base material. It is constructed as follows.
以下、図面により本考案の実例を説明する。第
１図はチユーブ状の熱回復性物品を示し、１は熱
回復性基材であり、ポリエチレン、ポリプロピレ
ン、ポリ塩化ビニル、エチレン−酢酸ビニル共重
合体等の熱可塑性プラスチツク、天然ゴム、シリ
コーンゴム、ブチルゴム、エチレン−プロピレン
共重合体ゴム等のゴム或いはこれらの混合物に所
望により老化防止剤、充填剤、着色剤等の添加剤
を適量配合して成るものであり、例えばこれらの
成分を均一にチユーブ状に成形した後必要に応じ
て架橋し、次いで径方向に熱延伸してその径を拡
大させ、更にこの拡大状態を維持して冷却させる
ことにより熱収縮性を付与する方法等により得ら
れる。 Hereinafter, examples of the present invention will be explained with reference to the drawings. FIG. 1 shows a tube-shaped heat-recoverable article, in which 1 is a heat-recoverable base material made of thermoplastics such as polyethylene, polypropylene, polyvinyl chloride, ethylene-vinyl acetate copolymer, natural rubber, silicone rubber, etc. , butyl rubber, ethylene-propylene copolymer rubber, etc., or a mixture thereof, with appropriate amounts of additives such as anti-aging agents, fillers, and colorants, as desired. It can be obtained by a method such as forming it into a tube shape, crosslinking it if necessary, then expanding the diameter by hot stretching in the radial direction, and then imparting heat shrinkability by maintaining this expanded state and cooling it. .
熱回復性基材１の内面の略中央部には、気化性
防錆剤を均一に分散せしめた接着剤層（以下防錆
剤分散接着層と称す）２が設けられており、該防
錆剤分散接着層２の両隣接部には各々接着剤層３
が設けられている。 Approximately at the center of the inner surface of the heat-recoverable base material 1, an adhesive layer 2 (hereinafter referred to as rust preventive dispersed adhesive layer) in which a volatile rust preventive agent is uniformly dispersed is provided. An adhesive layer 3 is provided on both adjacent parts of the agent-dispersed adhesive layer 2.
is provided.
気化性防錆剤は、被着体の材質に応じて選択使
用することができ、例えば被着体が鉄或いは鉄合
金である場合にはシクロヘキシルアミン、ジシク
ロヘキシルアミン、イソプロピルアミン等の有機
アミンと安息香酸、亜硝酸或いは各種脂防酸との
塩等が用いられ、被着体が銅或いは銅合金である
場合にはベンゾトリアゾール、ベンゾトリアゾー
ル誘導体或いはベンゾトリアゾールと有機アミン
との塩等が用いられる。 Volatile rust inhibitors can be selected depending on the material of the adherend; for example, when the adherend is iron or iron alloy, organic amines such as cyclohexylamine, dicyclohexylamine, isopropylamine, and benzoin are used. A salt with an acid, nitrous acid, or various acid-proofing fats is used, and when the adherend is copper or a copper alloy, benzotriazole, a benzotriazole derivative, or a salt of benzotriazole with an organic amine is used.
第１図に示す熱回復性物品を例えば鋼管溶接部
の外面防食用に用いるには、鋼管の端末において
防食ライニング層を取り除いて金属表面を露出さ
せて鋼管同志を溶接し、その後熱回復性物品をそ
の防錆剤分散接着層が鋼管の金属表面露出部（溶
接部）上に、接着剤層が鋼管の防食ライニング層
上に対応するように位置せしめた後、バーナー等
で加熱し熱収縮せしめればよく、この加熱により
熱回復性物品が鋼管に接着され、気化性防錆剤の
揮散が開始される。従つて、熱収縮性物品と鋼管
溶接部に小間〓が形成されても、気化性防錆剤が
小間〓に滞留するので、鋼管への錆の発生を防止
できる。 In order to use the heat-recoverable article shown in FIG. 1, for example, to protect the external surface of a welded steel pipe, the anti-corrosion lining layer is removed at the end of the steel pipe to expose the metal surface, and the steel pipes are welded together, and then the heat-recoverable article After positioning the anti-rust agent dispersion adhesive layer on the exposed metal surface (welded part) of the steel pipe and the adhesive layer on the anti-corrosion lining layer of the steel pipe, heat it with a burner etc. to cause it to shrink. This heating causes the heat-recoverable article to be bonded to the steel pipe, and the volatile rust preventive agent starts to volatilize. Therefore, even if a booth is formed between the heat-shrinkable article and the steel pipe, the volatile rust preventive agent remains in the booth, thereby preventing rust from forming on the steel pipe.
第２図および第３図はシート状の熱回復性物品
を示し、熱回復性基材１の片面上所定部に防錆剤
分散接着層２が設けられ、これに隣接するように
接着層３が設けられている。 2 and 3 show a sheet-like heat-recoverable article, in which a rust preventive agent-dispersed adhesive layer 2 is provided at a predetermined portion on one side of a heat-recoverable base material 1, and an adhesive layer 3 is provided adjacent to this. is provided.
上記実例においてはいずれも熱収縮性基材を用
いたが、本考案においては熱拡大性基材を用いる
ことができ、この場合に得られる熱回復性物品
は、例えば鋼管の内面ライニング用に使用でき
る。 Although heat-shrinkable base materials were used in all of the above examples, heat-expandable base materials can be used in the present invention, and the heat-recoverable articles obtained in this case can be used, for example, for inner lining of steel pipes. can.
本考案は上記のように構成され、所定の接着剤
層にのみ気化性防錆剤を分散せしめているので、
防錆剤の使用量を節約できる。 The present invention is constructed as described above, and the volatile rust preventive agent is dispersed only in the predetermined adhesive layer.
The amount of rust inhibitor used can be reduced.
第１図は本考案に係る熱回復性物品の実例を示
す断面図、第２図および第３図は他の実例を示す
平面図である。
１……熱回復性基材、２……防錆剤分散接着
層、３……接着剤層。
FIG. 1 is a sectional view showing an example of a heat recovery article according to the present invention, and FIGS. 2 and 3 are plan views showing other examples. 1... Heat recovery base material, 2... Rust preventive agent dispersed adhesive layer, 3... Adhesive layer.
Claims (1)
防錆剤を均一に分散せしめた接着剤層が互に隣接
するように設けられて成る熱回復性物品。 A heat-recoverable article comprising: a heat-recoverable substrate; an adhesive layer and an adhesive layer in which a volatile rust preventive agent is uniformly dispersed are provided adjacent to each other on the surface of a heat-recoverable base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12834482U JPS5933768U (en) | 1982-08-24 | 1982-08-24 | heat recoverable articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12834482U JPS5933768U (en) | 1982-08-24 | 1982-08-24 | heat recoverable articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5933768U JPS5933768U (en) | 1984-03-02 |
| JPH0243870Y2 true JPH0243870Y2 (en) | 1990-11-21 |
Family
ID=30291183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12834482U Granted JPS5933768U (en) | 1982-08-24 | 1982-08-24 | heat recoverable articles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5933768U (en) |
-
1982
- 1982-08-24 JP JP12834482U patent/JPS5933768U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5933768U (en) | 1984-03-02 |
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