JPH0625605A - Coating composition for pipe-connecting screw - Google Patents
Coating composition for pipe-connecting screwInfo
- Publication number
- JPH0625605A JPH0625605A JP17839392A JP17839392A JPH0625605A JP H0625605 A JPH0625605 A JP H0625605A JP 17839392 A JP17839392 A JP 17839392A JP 17839392 A JP17839392 A JP 17839392A JP H0625605 A JPH0625605 A JP H0625605A
- Authority
- JP
- Japan
- Prior art keywords
- film
- silicone
- acrylic polymer
- paint
- pipe
- 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.)
- Withdrawn
Links
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- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Sealing Material Composition (AREA)
- Paints Or Removers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガス管、水道管等各種
配管の管接続ねじのシール性及びねじ込み性を増大させ
る為のプリコート型の管接続ねじ用塗料に関する。特
に、錆等の発生し易い鋼管ねじに好適な管接続ねじ用塗
料に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precoat type paint for pipe connecting screws for increasing the sealing property and screwability of pipe connecting screws of various pipes such as gas pipes and water pipes. In particular, the present invention relates to a coating material for pipe connecting screws, which is suitable for steel pipe screws that are prone to rust and the like.
【０００２】ここで、管接続ねじとは、ソケット、ニッ
プル、ベンド、チーズ、ブッシュ、止めナット、キャッ
プ、プラグ、ユニオン等のねじ込み形管継ぎ手における
雌ねじ又は雄ねじ、さらには、水道短管の両端にねじ切
りされた雌ねじ又は雄ねじを含む概念である。[0002] Here, the pipe connecting screw means a female screw or a male screw in a screw type pipe joint such as a socket, a nipple, a bend, a cheese, a bush, a lock nut, a cap, a plug and a union, and further, both ends of a short water pipe. It is a concept including a threaded female screw or a male screw.
【０００３】[0003]
【従来の技術】従来、飲料水、工業用水等の移送用の配
管工事の際、従来の生テープ（ポリテトラフルオロエチ
レン製）と共に、現場施工の液体シール剤が多用されて
きている。2. Description of the Related Art Conventionally, in piping work for transporting drinking water, industrial water, etc., along with a conventional raw tape (made of polytetrafluoroethylene), a liquid sealant applied on site has been frequently used.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記液体シー
ル剤の場合、現場施工であり、且つ、溶剤を３０〜４０
％含むため、溶剤による水質汚染のおそれ、及び、溶剤
の経時蒸発にともなうシール塗膜の肉やせに起因するシ
ール圧の低下のおそれ、等の問題点があることが分かっ
た。However, in the case of the above liquid sealant, it is on-site construction and the solvent is 30-40.
%, It has been found that there are problems such as the possibility of water contamination by the solvent and the risk of reduction of the sealing pressure due to the thinning of the seal coating film due to evaporation of the solvent over time.
【０００５】本発明は、上記問題点を解決することがで
きる管接続ねじ用塗料を提供することを目的とする。It is an object of the present invention to provide a paint for pipe connecting screws which can solve the above problems.
【０００６】[0006]
【課題を解決するための手段】本発明者は、上記課題を
解決する為に、鋭意開発に努力をした結果、下記構成の
管接続ねじ用塗料に想到した。The inventors of the present invention have made intensive efforts to solve the above-mentioned problems, and as a result, have conceived a paint for pipe connection screws having the following constitution.
【０００７】製膜成分が溶剤で塗布可能な粘度に調製さ
れてなるプリコート型の管接続ねじ用塗料において、シ
リコーングラフトのアクリル系ポリマーを、前記製膜成
分の全部又は主成分とする。In a pre-coat type pipe connection screw paint prepared by adjusting the viscosity of the film-forming component with a solvent, the silicone-grafted acrylic polymer is the whole or main component of the film-forming component.
【０００８】[0008]
【手段の詳細な説明】次に、上記手段の各構成について
詳細な説明をおこなう。なお、以下の説明で、配合単位
は、特に断らない限り重量単位である。[Detailed Description of Means] Next, a detailed description will be given of each configuration of the above means. In the following description, the mixing unit is a weight unit unless otherwise specified.
【０００９】Ａ．本発明の塗料は、管接続ねじのシール
性及びねじ込み性を増大させる為のプリコート型の管接
続ねじ用塗料であり、製膜成分と、必要により滑剤付与
成分とが溶剤で塗布可能な粘度に調製されてなるこをを
前提的要件とする。A. The coating material of the present invention is a pre-coat type pipe connecting thread coating material for increasing the sealing property and screwability of the pipe connecting screw, and the film forming component and, if necessary, the lubricant imparting component have a viscosity that can be applied with a solvent. It is a prerequisite that it is prepared.
【００１０】Ｂ．本発明の塗料は、シリコーングラフト
のアクリル系ポリマーを製膜成分の全部又は主成分と
し、滑剤付与成分が必要なときは、フッ素樹脂粉末を滑
剤付与成分の全部又は主成分とする。B. In the coating material of the present invention, a silicone-grafted acrylic polymer is used as a whole or a main component of a film-forming component, and when a lubricant-providing component is required, a fluororesin powder is used as a whole or a main-component of the lubricant-providing component.
【００１１】(1) 上記シリコーン（ポリシロキサン）グ
ラフトのアクリル系ポルマーとは、幹部分がアクルル系
ポリマーで、枝部分がシリコーンであるグラフト共重合
体を意味する。このグラフト共重合体の合成法は、特に
限定されず、幹となる高分子Ａ（アクリル系ポリマー）
に枝となる高分子Ｂ（シリコーン）とを化学的につなぐ
方法、Ａ高分子にＢ単量体分子を重合させる方法、マク
ロマーを用いる方法、等任意である。(1) The acrylic polymer of the silicone (polysiloxane) graft means a graft copolymer in which the trunk portion is an acrylic polymer and the branch portion is silicone. The method for synthesizing the graft copolymer is not particularly limited, and the trunk polymer A (acrylic polymer) is used.
Any method such as a method of chemically linking a polymer B (silicone) that becomes a branch to the above, a method of polymerizing a B monomer molecule with a polymer A, a method of using a macromer, etc. are optional.
【００１２】ここでアクリル系ポリマーとしては、アク
リル酸、メタクリル酸、及びこれらの誘導体（アクリル
アミド、アクリロニトリル等）を単量体成分または主成
分とするものを上げることができる。Examples of the acrylic polymer include acrylic acid, methacrylic acid, and derivatives thereof (acrylamide, acrylonitrile, etc.) as monomer components or main components.
【００１３】また、シリコーンとしては、メチルシリコ
ーン、メチルフェニルシリコーン、及び、それらの側鎖
にフッ素、フッ化アルキル基等を導入したものを挙げる
ことができる。Examples of silicones include methyl silicone, methylphenyl silicone, and those having fluorine, a fluorinated alkyl group or the like introduced into their side chains.
【００１４】より具体的には、東亜合成株式会社から
「サイマック」（マクロマーを用いる方法で合成したも
の）の商品名シリーズで市販されているものを挙げるこ
とができる。More specifically, those commercially available from Toagosei Co., Ltd. under the trade name series of "Cymac" (synthesized by a method using a macromer) can be mentioned.
【００１５】(2) 本発明のシリコーグラフトのアクルル
系ポリマーを溶剤で適宜粘度に希釈した塗料は、滑性付
与剤は、必然的ではないが、管接続時のトルクを低減さ
せるため、または、大径（２インチ以上）の場合の耐水
圧性を確保するために添加するものである。フッ素樹脂
以外の固体潤滑剤を使用することも考えられるが、フッ
素樹脂以外では、所定の耐水圧性（特に、９０°戻し後
の）を確保し難いおそれがある。。(2) In the coating composition of the present invention, in which the acrylic polymer of the silico graft is diluted with a solvent to an appropriate viscosity, the slipperiness-imparting agent is not inevitable, but in order to reduce the torque at the time of pipe connection, or It is added to secure the water pressure resistance in the case of a large diameter (2 inches or more). It is possible to use a solid lubricant other than the fluororesin, but it may be difficult to secure a predetermined water pressure resistance (particularly after returning to 90 °) with other than the fluororesin. .
【００１６】フッ素樹脂としては、ポリテトラフルオロ
エチレン（ＴＰＥＥ）、ポリクロロトリフルオロエチレ
ン等の焼成・非焼成タイプを挙げることができる。これ
らの内で、焼成ＴＰＥＥがフッ素樹脂添加効果（上記シ
ール性・滑り性）が顕著である。そして、フッ素樹脂の
粒径は、通常、0.１〜４５０μｍ、望ましくは、１〜３
００μｍとする。Examples of the fluororesin include fired and non-fired types such as polytetrafluoroethylene (TPEE) and polychlorotrifluoroethylene. Among them, the effect of adding the fluororesin (the above-mentioned sealing property / sliding property) of the fired TPEE is remarkable. The particle size of the fluororesin is usually 0.1 to 450 μm, and preferably 1 to 3 μm.
00 μm.
【００１７】(4) 本発明の管接続ねじ用塗料は、上記製
膜成分、滑性付与成分の他に、無機顔料、防錆剤、界面
活性剤、硬化剤、等他の薬剤を適宜配合する。(4) The coating material for pipe connection screw of the present invention appropriately contains other chemicals such as an inorganic pigment, an anticorrosive agent, a surfactant, a curing agent, etc. in addition to the above-mentioned film-forming component and lubricity imparting component. To do.
【００１８】そして、溶剤により塗布可能な粘度、通
常、２０〜１０００cPs 、スプレー・浸漬等の量産塗布
の場合は、粘度が低い方が望ましく、２０〜３００cPs
となるようにして調製する。The viscosity which can be applied by a solvent is usually 20 to 1000 cPs, and in the case of mass production coating such as spraying and dipping, the viscosity is preferably lower and 20 to 300 cPs.
To prepare.
【００１９】ここで使用可能な溶剤は、特に限定されな
いが、臭いが強くなく、毒性が低く、かつ、引火点の高
いものが望ましい。キシレン、トルエン、酢酸エチル、
酢酸ブチル、ＭＥＫ、ブタノール、プロパノール、セロ
ソルブ、及びそれらの混合溶剤、等を挙げることができ
る。The solvent that can be used here is not particularly limited, but it is desirable that it has no strong odor, low toxicity, and high flash point. Xylene, toluene, ethyl acetate,
Examples thereof include butyl acetate, MEK, butanol, propanol, cellosolve, and mixed solvents thereof.
【００２０】(4) 上記のようにして調製したシール用塗
料は、予め、継ぎ手のねじ部（雄螺子、雌螺子を問わな
い。）に塗布する。塗布量は、通常、山部で０．５〜２
０μｍ、望ましくは、１〜５μｍ、谷部で５〜２００μ
ｍ、望ましくは４０〜８０μｍとする（いずれも乾燥膜
厚）。そして、生産性の見地、及び、耐溶剤性・耐薬品
性の見地から、加熱硬化させることが望ましい。加熱硬
化の態様は、通常、１００〜２００℃×３０〜６０min
とする。(4) The sealing paint prepared as described above is applied in advance to the threaded portion of the joint (whether it is a male screw or a female screw). The amount of coating is usually 0.5 to 2 in the mountain area.
0 μm, preferably 1-5 μm, 5-200 μ at the valley
m, preferably 40 to 80 μm (all are dry film thickness). From the viewpoint of productivity and the viewpoint of solvent resistance and chemical resistance, it is desirable to heat-cure. The mode of heat curing is usually 100 to 200 ° C. × 30 to 60 min.
And
【００２１】[0021]
【発明の作用・効果】本発明の管接続ねじ用塗料は、上
記構成により、下記のような作用効果を奏するものであ
る。The operation and effect of the present invention has the following effects due to the coating composition for a pipe connecting screw of the present invention.
【００２２】現場施工でなく、工場塗布可能であるの
で、水質汚染のおそれ、及び、溶剤の経時蒸発にともな
うシール塗膜の肉やせに起因するシール圧の低下のおそ
れがない。Since it can be applied in a factory instead of on-site construction, there is no risk of water pollution and reduction of sealing pressure due to thinning of the seal coating film due to evaporation of the solvent over time.
【００２３】強靭な密着性良好な塗膜を継ぎ手ねじ部
に対して形成可能なアクリル系ポリマーを幹とし、撥水
性・滑り性を有し、耐寒性・耐熱性・耐候性・長期酸化
安定性の良好なシリコーンがグラフトされているため、
シールの熱安定性・耐寒性及び耐老化性等に優れ、長期
にわたり、継ぎ手ねじ部に良好なシール性を付与する。Acrylic polymer, which is capable of forming a tough coating with good adhesion to the thread part of the joint, has water repellency and slip properties, and has cold resistance, heat resistance, weather resistance, and long-term oxidation stability. Because the good silicone of is grafted,
It has excellent heat stability, cold resistance, aging resistance, etc. of the seal, and provides good sealing property to the threaded portion of the joint for a long time.
【００２４】なお、本発明と同様の問題点を解決するた
めに、下記構成のパッキング継ぎ手が提案されている
（特公昭５９−４５８７２号）。In order to solve the same problems as in the present invention, a packing joint having the following structure has been proposed (Japanese Patent Publication No. 59-45872).
【００２５】「ねじを有する管継手のねじ部分に、該ね
じ部を被覆した、フッ素ゴムとポリテトラフルオロエチ
レンを含むパッキング被覆層が予め固着形成されている
ことを特徴とするパッキング継ぎ手。」 即ち、加硫配合のフッ素ゴムとポリテトラフルオロエチ
レン（ＰＴＥＦ）とを、塗布可能な粘度（１０００〜１
００００cPs ）、固形分（２０〜８０重量％）なるよう
に調製した継ぎ手ねじ部のプリコート型塗料が提案され
ている。"A packing joint characterized in that a packing coating layer containing fluororubber and polytetrafluoroethylene, which covers the threaded portion, is fixedly formed in advance on the threaded portion of the pipe joint having the thread." , A vulcanized fluorine rubber and polytetrafluoroethylene (PTEF) can be applied to a viscosity (1000-1
0000 cPs), and a pre-coat type coating material for a screw part of a joint, which is prepared so as to have a solid content (20 to 80% by weight), has been proposed.
【００２６】しかし、上記構成の塗料に比しても、本発
明は、下記のような有利な点を有する。However, the present invention has the following advantages as compared with the coating material having the above-mentioned constitution.
【００２７】アクルル系ポリマーの場合、フッ素ゴム
に比して、希釈溶剤の種類も限定されない。なお、フッ
素ゴムの場合、臭が強い、酢酸イソアミル等の臭気の強
いものに限定される。In the case of the acrylic polymer, the kind of the diluent solvent is not limited as compared with the fluororubber. The fluororubber is limited to those having a strong odor and having a strong odor such as isoamyl acetate.
【００２８】塗布粘度を本塗料の場合、２０〜１００
０cPs と低くでき工場量産塗布上望ましい。フッ素ゴム
系塗料の場合、１０００〜１００００cPs である。In the case of the present coating composition, the coating viscosity is 20-100.
It can be as low as 0 cPs, which is desirable for factory mass production coating. In the case of fluororubber-based paint, it is 1000 to 10000 cPs.
【００２９】また、フッ素樹脂のような滑性付与剤を
添加しなくても、実用に耐える塗膜を継ぎ手ねじ部表面
に形成可能であり、作業面及びコスト面からも有利であ
る。Further, it is possible to form a coating film that can be used practically on the surface of the joint screw portion without adding a slipperiness-imparting agent such as a fluororesin, which is advantageous in terms of work and cost.
【００３０】[0030]
【実施例】以下、本発明の効果を確認する為に行なった
実施例について説明する。EXAMPLES Examples which were carried out to confirm the effects of the present invention will be described below.
【００３１】Ａ．性能試験は、下記の如く行なった。A. The performance test was performed as follows.
【００３２】(1) 組み立て試験体の作成 表１に示す組成の市販ワニスに、焼成ＰＴＦＥ（粒径
１２０〜１５０μｍ）を表示の量、及び、ワニスとＰＴ
ＦＥ合計量１００部に対して顔料２０部を添加して十分
に攪拌し均一混合させ、さらに、溶媒（トルエン）を粘
度が３０cPsとなるように添加して混合し、各塗料を調
製した。こうして調製した各塗料を、鋼管製ソケット
（２インチ）の雌ねじ（脱脂処理後）に浸漬塗布する。
このとき、乾燥塗膜厚は山部２〜５μｍ、谷部４０〜８
０μｍであった。(1) Preparation of assembly test body A commercially available varnish having the composition shown in Table 1 was used, and the amount of baked PTFE (particle size: 120 to 150 μm) indicated, and the varnish and PT
20 parts of the pigment was added to 100 parts of the total amount of FE, sufficiently stirred and uniformly mixed, and further, a solvent (toluene) was added and mixed so that the viscosity was 30 cPs to prepare each paint. Each paint thus prepared is applied by dipping onto the female screw (after degreasing treatment) of a steel pipe socket (2 inches).
At this time, the dry coating film thickness is 2 to 5 μm in the peak portion and 40 to 8 in the valley portion.
It was 0 μm.
【００３３】２４時間室温放置後、端部に雄ねじを切
った鋼管（２インチ）をねじ込む（最終締めつけトル
ク：２０kgf ・ｍ、１９６Ｊ）。After being left at room temperature for 24 hours, a steel pipe (2 inches) having an external thread on the end is screwed in (final tightening torque: 20 kgf · m, 196J).
【００３４】(2) 試験項目 耐圧性 上記組み立て試験体を、１８０°戻し回転（実施例１・
２）または９０°戻し回転（実施例３）させ、２４時間
経過後に、水道圧（１０kgf/ cｍ2 、９８×１０4 Pa
）を負荷して、水漏れの有無を試験した。(2) Test item Pressure resistance The above-mentioned assembled test piece was rotated by 180 ° (Example 1,
2) or 90 ° return rotation (Example 3), and after 24 hours, tap water pressure (10 kgf / cm 2 , 98 × 10 4 Pa)
) Was loaded and the presence or absence of water leakage was tested.
【００３５】防錆力 上記組み立て試験体について、 JIS Z 2371 の塩水噴霧
試験を行ない、ねじ部における錆の発生の有無を目視観
察した。Anticorrosive power The above-mentioned assembled test piece was subjected to a JIS Z 2371 salt spray test, and the presence or absence of rust on the threaded portion was visually observed.
【００３６】塗膜密着性 脱脂処理した軟鋼板の上に、各塗料を乾燥膜厚１５０μ
ｍとなるように塗布し、 JIS D 0202 に準じて、１００
個のます目を作り、セロハン粘着テープを張りつけて急
激に剥し、残ったます目の数を数える。Coating Adhesion Each coating material was dried to a thickness of 150 μm on a degreased mild steel plate.
It is applied so that it becomes m, and it is 100 according to JIS D 0202.
Make individual squares, attach cellophane adhesive tape and peel off rapidly, and count the number of remaining squares.
【００３７】水質性試験 ５×１５cmのガラス板に各塗料（試料）を両面合わせて
１００cm2 に均一に塗布、常温にて２４時間放置したも
のを試験片とした。該試験片を流水で１時間洗浄した
後、予め準備した蒸留水１Ｌ中に浸漬し、２４時間後、
試験片を取り出した。そして、その浸漬液について、厚
生省衛生検査指針上水試験方法（日本水道協会）に準拠
して、臭気・味の異常について測定した。Water quality test Each coating (sample) was evenly applied to 100 cm 2 on both sides of a 5 × 15 cm glass plate, and allowed to stand at room temperature for 24 hours to obtain a test piece. The test piece was washed with running water for 1 hour, then immersed in 1 L of distilled water prepared in advance, and after 24 hours,
The test piece was taken out. Then, the immersion liquid was measured for odor and taste abnormalities in accordance with the Ministry of Health, Labor and Welfare Hygiene Inspection Guideline Water Test Method (Japan Waterworks Association).
【００３８】耐ガス漏れ性 Ｎ2 ガス圧５kg/cｍ2 を継ぎ手部に負荷させて、ガス漏
れの有無を判定した。Gas Leakage Resistance The joint portion was loaded with N 2 gas pressure of 5 kg / cm 2 and the presence or absence of gas leakage was determined.
【００３９】Ｂ．試験結果と評価 試験結果を示す表２から、本発明の各実施例の塗料は、
管接続ねじ用塗料としての諸性能に優れていることが分
かる。B. Test Results and Evaluation From Table 2 showing the test results, the coating materials of the respective examples of the present invention are
It can be seen that it has excellent performance as a paint for pipe connection screws.
【００４０】アクリル系ポリマーの強靭性と継ぎ手ねじ
部に対する密着性、及び、シリコーンの撥水性による止
水力、さらには、シリコーンのもつ良好な滑り性・耐寒
性・耐熱性・耐候性・長期酸化安定性、が組み合わさっ
て、上記管接続ねじ用塗料としての高性能を示すものと
推定される。[0040] The toughness of the acrylic polymer and the adhesion to the threaded portion of the joint, and the waterproofness due to the water repellency of silicone, as well as the good slidability, cold resistance, heat resistance, weather resistance and long-term oxidation stability of silicone. It is presumed that, in combination, the high performance as the above-mentioned paint for pipe connection threads is exhibited.
【００４１】[0041]
【表１】 [Table 1]
【００４２】[0042]
【表２】 [Table 2]
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ１６Ｌ 15/04 Ｚ 7123−3Ｊ Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display area F16L 15/04 Z 7123-3J
Claims (4)
されてなるプリコート型の管接続ねじ用塗料において、 シリコーングラフトのアクリル系ポリマーを、前記製膜
成分の全部又は主成分とする、ことを特徴とする管接続
ねじ用塗料。1. A precoat type paint for pipe connection threads, wherein the film-forming component is adjusted to have a viscosity that can be applied with a solvent, and the silicone-grafted acrylic polymer is used as the whole or main component of the film-forming component. A paint for pipe connection screws, which is characterized in that
可能な粘度に調製されてなるプリコート型の管接続ねじ
用塗料において、 シリコーングラフト型アクリル系ポリマーを、前記製膜
成分の全部又は主成分とし、 フッ素樹脂粉末を、前記滑性付与成分の全部又は主成分
する、ことを特徴とする管接続ねじ用塗料。2. A precoat type coating material for pipe connecting threads, comprising a film-forming component and a lubricity-imparting component adjusted to have a viscosity that can be applied with a solvent, wherein a silicone graft-type acrylic polymer is added to all of the film-forming components. Alternatively, it is a main component, and a fluororesin powder is contained in all or the main components of the above-mentioned lubricity-imparting component, and a paint for pipe connection screws.
管接続ねじの雌ねじ部又は雄ねじ部に予め塗布して、シ
ール塗膜を形成することを特徴とする管接続ねじのシー
ル方法。3. The paint for pipe connection screw according to claim 1,
A method for sealing a pipe connecting screw, which comprises applying a seal coating film on a female screw portion or a male screw portion of the pipe connecting screw in advance.
れたシール塗膜を雌ねじ又は雄ねじに有することを特徴
とする管接続ねじ。4. A pipe connecting screw having a seal coating film formed of the seal paint according to claim 1 on a female screw or a male screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17839392A JPH0625605A (en) | 1992-07-06 | 1992-07-06 | Coating composition for pipe-connecting screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17839392A JPH0625605A (en) | 1992-07-06 | 1992-07-06 | Coating composition for pipe-connecting screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0625605A true JPH0625605A (en) | 1994-02-01 |
Family
ID=16047720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17839392A Withdrawn JPH0625605A (en) | 1992-07-06 | 1992-07-06 | Coating composition for pipe-connecting screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0625605A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011006612A (en) * | 2009-06-26 | 2011-01-13 | Kurimoto Ltd | Coating composition for metallic pipe and metallic pipe coated with the coating |
| JP2014185238A (en) * | 2013-03-22 | 2014-10-02 | Kurimoto Ltd | Coating composition for metallic pipe and metallic pipe coated with the same |
-
1992
- 1992-07-06 JP JP17839392A patent/JPH0625605A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011006612A (en) * | 2009-06-26 | 2011-01-13 | Kurimoto Ltd | Coating composition for metallic pipe and metallic pipe coated with the coating |
| JP2014185238A (en) * | 2013-03-22 | 2014-10-02 | Kurimoto Ltd | Coating composition for metallic pipe and metallic pipe coated with the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19991005 |