JP4814812B2 - Anti-rust paint - Google Patents
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- JP4814812B2 JP4814812B2 JP2007032959A JP2007032959A JP4814812B2 JP 4814812 B2 JP4814812 B2 JP 4814812B2 JP 2007032959 A JP2007032959 A JP 2007032959A JP 2007032959 A JP2007032959 A JP 2007032959A JP 4814812 B2 JP4814812 B2 JP 4814812B2
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Description
本発明は、ステンレス、溶融亜鉛メッキ製品などの表面の錆止めとして長期間の錆止め効果に優れ、塩害に強い錆止め塗料に関し、特に変成エポキシ樹脂を含有する新規な錆止め塗料に関する。 The present invention relates to a rust-preventing paint that is excellent in rust-preventing effect for a long period of time as rust-preventing surfaces of stainless steel, hot-dip galvanized products, and the like, and is resistant to salt damage.
塩水、ガソリン、原油、強酸、強アルカリの薬品に対して耐久性の有る塗料について古くから多くの研究がされている。例えば、エポキシ樹脂を主成分とする塗料が市販されている。しかしこのエポキシ樹脂塗料を施した製品でも塗装面において長期間安定してエポキシ樹脂塗料膜が維持されるものでもなかった。特に、気温の低い地方、例えば、日本国の東北地方の冬期には気温５℃以下になることが多く、このような低温ではエポキシ樹脂塗料の硬化が進まず、使用できなかった。また、食品用の貯蔵容器など金属製品の錆止め塗料は塗料成分の溶出などの問題で厳しい規格があり、この規格に合格しなければ使用できなかった。そのため食品用規格に適した塗料として市販されるものは非常に少ない現状である。このような規格に適した食品用容器の塗料として出願人は特公平６−１３６６９号公報に記載される「変成エポキシ樹脂塗料」を発明した。 Salt water, gasoline, crude oil, has been a lot of research for a long time for the paint having the durability against chemicals of strong acid, strong alkaline. For example, a paint mainly composed of an epoxy resin is commercially available. However, even with the product coated with this epoxy resin paint, the epoxy resin paint film was not stably maintained for a long time on the painted surface. In particular, in winter in low-temperature regions, for example, in the Tohoku region of Japan, the temperature is often 5 ° C. or lower, and at such low temperatures, the epoxy resin coating does not progress and cannot be used. In addition, rust prevention paints for metal products such as food storage containers have strict standards due to problems such as elution of paint components, and could not be used unless they passed this standard. For this reason, there are very few commercially available paints suitable for food standards. The applicant invented “modified epoxy resin paint” described in Japanese Patent Publication No. 6-13669 as a paint for food containers suitable for such standards.
特許文献１記載の発明においては主剤と硬化剤との混合割合は６０：４０とし、硬化剤の含有量の関係で金属板上に塗装するに際して厚さ２００ミクロンの塗膜を得るために３回の塗布しなければならなかった。 In the invention described in Patent Document 1, the mixing ratio of the main agent and the curing agent is 60:40, and three times to obtain a 200-micron-thick coating film on the metal plate due to the content of the curing agent. Had to be applied.
従来の問題点を改善し、一回の塗布で２５０ミクロン以上の厚さに塗布でき、塗装面における長期間の耐久性を維持する塗料膜を形成する錆止め塗料が必要であった。また、被金属表面への一回の塗布作業にして、塗布膜厚みを厚くした錆止め塗料が要望されている。
本発明の課題は、塗装面の膜厚を厚くし、なお、耐久性に優れた錆止め塗料を提供することである。
本発明の課題は、塗装後、長期間経過しても劣化の見られることがない錆止め塗料を提供することである。
There has been a need for a rust-preventing paint that improves the conventional problems and can form a paint film that can be applied to a thickness of 250 microns or more in a single application and that maintains the long-term durability of the painted surface. In addition, there is a demand for a rust-preventing paint having a thick coating film as a single coating operation on the metal surface.
An object of the present invention is to provide a rust-preventing paint having a thick coating surface and excellent durability.
An object of the present invention is to provide a rust-preventing paint that does not show deterioration even after a long period of time after coating.
上記課題を解決するために請求項１に記載の発明は、エポキシ樹脂塗料５０〜７０重量％、固形エポキシ樹脂６〜１５重量％、塩化ビニリデン系樹脂エマルジョン０．５〜７．０重量％、金属箔片１５〜２０重量％及び垂止剤５〜７重量％からなる主剤に対し硬化剤を混合割合が全体量の２８〜３８重量％となるように組み合わせたことを特徴とする錆止め塗料を提供する。 In order to solve the above-mentioned problems, the invention described in claim 1 includes an epoxy resin paint 50 to 70% by weight , a solid epoxy resin 6 to 15% by weight , a vinylidene chloride resin emulsion 0.5 to 7.0% by weight , a metal providing rust coating, characterized in that the mixing ratio of the curing agent to base resin consisting of foil segments 15 to 20 wt% and Shidetomezai 5-7 wt% is combined such that 28 to 38 wt% of the total amount To do.
本発明の課題は、前記金属箔片がステンレス箔片またはキュプロニッケル箔片である構成、前記垂止剤がアルコール系溶剤中に脂肪酸アマイドを含むものである構成によって達成できる。 The object of the present invention can be achieved by a structure in which the metal foil piece is a stainless steel foil piece or a cupronickel foil piece, and a structure in which the suspending agent contains a fatty acid amide in an alcohol solvent.
本発明の錆止め塗料の主成分であるエポキシ樹脂としては、エポキシ樹脂塗料に使用する組成や硬化剤の異なる各種のものを使用可能である。例えば、大日本塗料株式会社製の「エポニックス＃１０クリア（商品名）」、「ＳＤＣコート（商品名）＃４０２」などである。 As the epoxy resin that is the main component of the rust-preventing paint according to the present invention, various kinds of compositions having different compositions and curing agents used for the epoxy resin paint can be used. For example, “Eponix # 10 clear (product name)”, “SDC coat (product name) # 402” manufactured by Dainippon Paint Co., Ltd., etc.
本発明の錆止め塗料は、主剤に垂止剤が５〜７重量％を含有するから主剤と硬化剤とを混合し、金属板の表面に塗布したときに密着性がよく、塗布後にこの塗料が垂れる恐れは無かった。この垂止剤の添加により一回の塗布で２５０ミクロンの厚みの塗膜を形成することができた。この垂止剤の含有量が４重量％以下では塗布後に垂れることがあり、均一な塗膜が出来ず、８重量％以上では塗布乾燥したときに表面にブツブツが生じて美観に問題があった。 Since the rust preventive paint of the present invention contains 5 to 7% by weight of the suspending agent in the main agent, the main agent and the curing agent are mixed, and when applied to the surface of the metal plate, the adhesion is good. There was no fear of dripping. By adding this suspending agent, a coating film having a thickness of 250 microns could be formed by a single application. If the content of the suspending agent is 4% by weight or less, it may sag after coating, and a uniform coating film cannot be formed. If the content is 8% by weight or more, there is a problem of aesthetics due to unevenness on the surface when the coating is dried. .
本発明の錆止め塗料に使用する固形エポキシ樹脂として、例えば、ジャパンエポキシレジン株式会社製の「シェルポキシ＃１００４（商品名）」を使用できる。
この固形エポキシ樹脂の含有量は固形エポキシ樹脂が６〜１５重量％であるから乾燥塗膜の性能に優れ、塗装時に添加する硬化剤との組み合わせにより、耐海水、耐溶剤，耐硫化物の性能が向上し、塩水や原油に対して特に効果を発揮する。この固形エポキシ樹脂の含有量が６重量％以下では塗料としての性能を発揮せず、１６重量％以上になると塩化ビニリデン系樹脂エマルジョンを添加したときに固くなり過ぎて塗料にならない。
As a solid epoxy resin used for the rust preventive paint of the present invention, for example, “Shellpoxy # 1004 (trade name)” manufactured by Japan Epoxy Resin Co., Ltd. can be used.
The content of the solid epoxy resin is 6 to 15 % by weight of the solid epoxy resin, so that the performance of the dry coating film is excellent. By combining with a curing agent added at the time of coating, the performance of seawater resistance, solvent resistance, and sulfide resistance Improved, especially effective against salt water and crude oil. When the content of the solid epoxy resin is 6% by weight or less, the performance as a paint is not exhibited. When the content is 16% by weight or more, when the vinylidene chloride resin emulsion is added, it becomes too hard and does not become a paint.
本発明に使用する塩化ビニリデン系樹脂エマルジョンは、例えば、旭化成工業株式会社製造のサランラテックスＲタイプｌ３２１（商品名）が使用できる。この含有量は主剤の０．５〜７．０重量％が好ましく、０．５重量％未満では塗膜としての耐久性に問題があり、７．０重量％を越えたときはエポキシ樹脂との親和性に支障をきたし、所期の効果を得ることができない。最も好ましいのは３〜６重量％である。
この塩化ビニリデン系樹脂エマルジョンとエポキシ樹脂との混合物の溶剤としてはエポキシシンナーが好ましい。
As the vinylidene chloride resin emulsion used in the present invention, for example, Saran latex R type 1321 (trade name) manufactured by Asahi Kasei Kogyo Co., Ltd. can be used. The content is preferably 0.5 to 7.0 wt% of the base resin, there is a problem with durability as a paint film is less than 0.5 wt%, of the epoxy resin when it exceeds 7.0 wt% The affinity is hindered and the desired effect cannot be obtained. Most preferred is 3 to 6% by weight .
As a solvent for the mixture of the vinylidene chloride resin emulsion and the epoxy resin, epoxy thinner is preferable.
本発明錆止め塗料の金属箔片は、ステンレス箔片、ニッケル箔片などが使用でき、ステンレス箔片として一般に知られるＳＵＳ３１６Ｌ、ＳＵＳ ３０４Ｌなどで、キュプロニッケル箔片としては銅が９０〜７０重量％、ニッケルが１０〜３０重量％の組成のものなどが使用できる。箔片の形状としては厚さ３ミクロン以下で幅１００ミクロン以下、長さ１００ミクロン以下の小判状，木の葉状の箔片である。この箔片の比表面積が１０００ｃｍ２／ｇ以上のものが良好である。
本発明の錆止め塗料の主剤に含まれる金属箔片の含有量は、５〜４０重量％が好ましく、４重量％以下では金属箔の効果が現れず４１重量％以上では塗布したときに均一な塗膜を形成しなかった。
Metal Hakuhen of the present invention antirust paint, stainless steel foil strip, such as a nickel foil member can be used, SUS316L, commonly known as stainless steel foil strip, SUS 304L or the like, 90 to 70% by weight copper as cupronickel foil piece, A nickel composition having a composition of 10 to 30% by weight can be used. The shape of the foil piece is an oval or leaf-like foil piece having a thickness of 3 microns or less, a width of 100 microns or less, and a length of 100 microns or less. The foil piece having a specific surface area of 1000 cm 2 / g or more is good.
The content of the metal foil pieces contained in the main agent of rust paint of the present invention, uniform coating when preferably 5 to 40 wt%, was applied in 4% by weight the effect of the metal foil appeared not 41 wt% or more No film was formed.
本発明の錆止め塗料は、食品製造貯蔵などに使用するステンレス製タンクの錆止め塗料として使用できるばかりでなく、海上に設置される巨大構造物（メガフロート）、溶融亜鉛メッキの防護剤として好適である。その他、鉄塔上部の細い部材や食品工場の塩素系消毒薬清掃散布の場所などにも利用することができる。 The rust preventive paint of the present invention can be used not only as a rust preventive paint for stainless steel tanks used for food production storage and the like, but also suitable as a protective agent for giant structures (mega floats) installed on the sea and hot dip galvanizing. . In addition, it can also be used as a thin member at the top of the steel tower or a place for cleaning and spraying chlorine-based disinfectants in food factories.
本発明の錆止め塗料について，日本塗料検査協会の「試験結果報告書」を表１、表２に示すとおり、錆止め塗料として優れたものである。 As shown in Tables 1 and 2, the rust-preventing paint of the present invention is excellent as a rust-preventing paint as shown in Tables 1 and 2 of "Test Results Report" of the Japan Paint Inspection Association.
本発明の新規錆止め塗料は、通常のステンレスなどの金属表面に塗装したときは、一回の塗装によって２００ミクロン〜２５０ミクロンの厚みの塗膜を形成することができた。その耐久性
は長期間におよんで腐食は見られなかった。
本発明の錆止め塗料は、ステンレス加工品の表面、溶融亜鉛メッキ表面に直塗りで密着性のよい塗膜を形成した。特に、食品貯蔵タンクとして日本塗料検査協会の溶出試験では全く
異常が無く環境衛生上優れた錆止め塗料である。
When the novel rust-preventing paint of the present invention was applied to a normal metal surface such as stainless steel, a coating film having a thickness of 200 to 250 microns could be formed by a single coating. The durability was long-term and no corrosion was observed.
The antirust coating of the present invention formed a coating film with good adhesion by direct coating on the surface of a processed stainless steel product and the surface of hot dip galvanized. In particular, it is a rust-preventing paint that has no abnormality in the elution test of the Japan Paint Inspection Association as a food storage tank and is excellent in environmental hygiene.
以下，本発明に係わる錆止め塗料の実施形態について説明する。
（実施例１）
本発明の錆止め塗料の主剤として以下の組成を準備した。
エポキシ樹脂クリア ６１重量％
固形エポキシ樹脂 １１重量％
垂止剤 ５重量％
塩化ビニリデン系樹脂エマルジョン ５重量％
ステンレス箔片 １８重量％
（ＳＵＳ３１６Ｌ）
合計 １００％
これらの化合物を主剤として調合するに当たって次のようにして製造した。
先ず、大日本塗料株式会社製造の商品名クリアのエポキシ樹脂を７０℃に加熱溶融し、これに垂止剤としてアルコール系溶剤に脂肪酸アマイドを含有する楠本化成株式会社製造のディスパロン（商品名）を加えてよく撹拌し、溶融状態のこれにジャパンエポキシレジン株式会社のシェルポキシ＃１００４（商品名）の固形エポキシ樹脂を加えて、撹拌して溶融させ、次に旭化成株式会社製のサランラテックスＲタイプｌ３２１（商品名）の塩化ビニリデン系樹脂エマルジョンを加えて、撹拌して熱を止めて放置し、３０℃位に温度が下がった状態でステンレスＳＵＳ３１６Ｌ箔を練り込んで主剤を仕上げた。
Hereinafter, embodiments of the rust preventive paint according to the present invention will be described.
Example 1
The following composition was prepared as the main ingredient of the rust preventive paint of the present invention.
Epoxy resin clear 61% by weight
11% by weight of solid epoxy resin
Suspension 5% by weight
Vinylidene chloride resin emulsion 5% by weight
Stainless steel foil piece 18% by weight
(SUS316L)
Total 100%
In preparing these compounds as the main agent, they were produced as follows.
First, a clear epoxy resin manufactured by Dainippon Paint Co., Ltd. was heated and melted to 70 ° C., and then Dispalon (trade name) manufactured by Enomoto Kasei Co., Ltd. containing fatty acid amide in an alcohol solvent as a suspending agent. In addition, a solid epoxy resin of Shellpoxy # 1004 (trade name) from Japan Epoxy Resin Co., Ltd. is added to the molten state, and the mixture is stirred and melted. Next, Saran Latex R type I321 manufactured by Asahi Kasei Co., Ltd. (Product name) of vinylidene chloride resin emulsion was added, and the mixture was stirred and the heat was turned off and allowed to stand, and the stainless steel SUS316L foil was kneaded with the temperature lowered to about 30 ° C. to finish the main agent.
一方、硬化剤として大日本塗料株式会社製造のポリアミドアミン樹脂を準備した。
主剤と硬化剤との割合を７０：３０として混合し、熟成時間３０分を経過した後、製造された錆止め塗料の塗布量を３５０ｇ／ｍ２／回とし、ステンレス鋼板の表面に均一の厚み２００ミクロンで塗布して試験片とした。この膜面は良好であった。
On the other hand, a polyamidoamine resin manufactured by Dainippon Paint Co., Ltd. was prepared as a curing agent.
After mixing the main agent and the curing agent at a ratio of 70:30 and the aging time of 30 minutes has elapsed, the coating amount of the produced rust-preventing paint is 350 g / m 2 / time, and the surface of the stainless steel plate has a uniform thickness of 200 The test piece was coated with a micron. This film surface was good.
（実施例２）
エポキシ樹脂クリア ５５重量％
固形エポキシ樹脂 １５重量％
垂止剤（ディスパロン） ７重量％
塩化ビニリデン系樹脂エマルジョン ７重量％
ステンレスＳＵＳ３１６Ｌ箔片 １６重量％
合計 １００％
以上の組成物を実施例１と同様にして溶融状態で混合撹拌して主剤を製造した。
塗装する際に、この主剤に硬化剤を主剤に対して３８重量％混合して撹拌して熟成してステンレス鋼板に１回の塗装で２５０ミクロン塗布した。良好な塗布膜が形成された。
(Example 2)
Epoxy resin clear 55% by weight
15% by weight of solid epoxy resin
Suspension (Dispalon) 7% by weight
7% by weight of vinylidene chloride resin emulsion
Stainless steel SUS316L foil piece 16% by weight
Total 100%
The above composition was mixed and stirred in the molten state in the same manner as in Example 1 to produce a main agent.
At the time of coating, the main agent was mixed with 38% by weight of a curing agent with respect to the main agent, stirred and aged, and then applied to a stainless steel plate by 250 microns in a single coating. A good coating film was formed.
（実施例３）
エポキシ樹脂クリア ６８重量％
固形エポキシ樹脂 ６重量％
垂止剤（ディスパロン） ７重量％
塩化ビニリデン系樹脂エマルジョン ７重量％
ステンレス箔片（ＳＵＳ３０４Ｌ） １２重量％
合計 １００％
実施例１，２同じようにして製造した。
この主剤を硬化剤としてポリアミドアミンを使用し、混合割合を２９重量％にして鋼鉄板に塗装した。その結果良好な塗料膜が形成された。
(Example 3)
Epoxy resin clear 68% by weight
Solid epoxy resin 6% by weight
Suspension (Dispalon) 7% by weight
7% by weight of vinylidene chloride resin emulsion
Stainless steel foil piece (SUS304L) 12% by weight
Total 100 %
Examples 1 and 2 Produced in the same manner.
Polyamide amine was used as the main agent as a curing agent, and the mixture ratio was 29% by weight , and the steel plate was coated. As a result, a good paint film was formed.
以上のようにして製造した主剤に硬化剤以下の割合で混合した錆止め塗料と、従来の製品の比較実験結果を表３に示す。
厚み ０．３ｍｍ、巾５０ｍｍ、長さ１００ｍｍの錫メッキ板をケトンにより素地調整し、下塗として市販のエポキシジンクリッチペイントを塗装し、その上に本発明に係る錆止め塗料（エポキシ樹脂塗料としては大日本塗料株式会社製造のエポニックス＃１０クリヤー（商品名）を使用した。）を塗装して、試験片を作成した。試験片を海水とシンナーとを混ぜた溶液に浸し、１６４時間試験をした。膜厚はマイクロメーターで実測し平均値を求め値とした。
Table 3 shows the results of comparative experiments between the rust-preventing paint mixed with the main agent produced as described above at a ratio equal to or less than the curing agent and the conventional product.
A tin-plated plate with a thickness of 0.3 mm, a width of 50 mm, and a length of 100 mm is prepared with a ketone, and a commercially available epoxy zinc rich paint is applied as an undercoat. Eponics # 10 clear (trade name) manufactured by Nippon Paint Co., Ltd. was used. The test piece was immersed in a mixed solution of seawater and thinner and tested for 164 hours. The film thickness was measured with a micrometer, and the average value was obtained.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007032959A JP4814812B2 (en) | 2007-02-14 | 2007-02-14 | Anti-rust paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007032959A JP4814812B2 (en) | 2007-02-14 | 2007-02-14 | Anti-rust paint |
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| Publication Number | Publication Date |
|---|---|
| JP2008195839A JP2008195839A (en) | 2008-08-28 |
| JP4814812B2 true JP4814812B2 (en) | 2011-11-16 |
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| JP2007032959A Active JP4814812B2 (en) | 2007-02-14 | 2007-02-14 | Anti-rust paint |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6571370B2 (en) * | 2015-04-09 | 2019-09-04 | ステンレスペイント有限会社 | Paint for preventing deterioration and method for preventing deterioration |
| EP3578606A1 (en) * | 2018-06-06 | 2019-12-11 | Jotun A/S | Particulate coating composition |
| EP4060002A1 (en) * | 2021-03-16 | 2022-09-21 | PPG Coatings Europe B.V. | A coating composition |
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| JPH0613669B2 (en) * | 1986-11-12 | 1994-02-23 | 東北銅鉄株式会社 | Modified epoxy resin paint |
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