WO2007004254A1 - Water-repellent coating film obtained from methylsilazane compound and process for producing coating film - Google Patents

Water-repellent coating film obtained from methylsilazane compound and process for producing coating film Download PDF

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WO2007004254A1
WO2007004254A1 PCT/JP2005/012036 JP2005012036W WO2007004254A1 WO 2007004254 A1 WO2007004254 A1 WO 2007004254A1 JP 2005012036 W JP2005012036 W JP 2005012036W WO 2007004254 A1 WO2007004254 A1 WO 2007004254A1
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compound
methylsilazane
coating film
alkoxysilane
coating
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PCT/JP2005/012036
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French (fr)
Japanese (ja)
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Hiromasa Murase
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Hiromasa Murase
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/16—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers in which all the silicon atoms are connected by linkages other than oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
    • C09D183/14—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms

Definitions

  • the present invention relates to a water-repellent coating film using a methylsilazane compound and a method for producing the coating film.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 07-233261
  • an object of the present invention is to provide a water-repellent coating film and a method for producing the same that are easy to handle.
  • the present invention relates to
  • Methylsilazane compound and alkoxysilane compound strength coating film manufacturing method characterized by creating a coating film
  • the weight% force of the methylsilazane compound to the total of the alkoxysilane compound and the methylsilazane compound is 10.0 to 70.0
  • the weight% force of the methylsilazane compound to the total of the alkoxysilane compound and the methylsilazane compound is 10.0 to 70.0
  • the alkoxysilane compound is applied as a solution, and its concentration is 0.5 to 5.0%,
  • the alkoxysilane compound is applied as a solution, and its concentration is 0.5 to 5.0%,
  • the solvent used for coating the methylsilazane compound is a hydrocarbon solvent
  • the solvent used for coating the methylsilazane compound is a hydrocarbon solvent
  • the solvent used for coating the alkoxysilane compound is a hydrocarbon solvent
  • the solvent used for coating the alkoxysilane compound is a hydrocarbon solvent
  • the coating surface is further rubbed after the solution of methylsilazane compound and alkoxysilane compound is applied and dried.
  • the methylsilazane monomers and oligomers used in the present invention are described in, for example, JP-T-203-03-514822 and JP-A-60-226890. In order to form a coating film, it is prepared by applying a solution of these methylsilazane monomers or oligomers and removing the solvent.
  • examples of the alkoxysilane compound used include alkoxysilane monomers and oligomers of these alkoxysilanes.
  • Preferred examples of the alkoxysilane compound used here include trimethoxysilane, tetramethoxysilane, triethoxysilane, and tetraethoxysilane.
  • a silane compound obtained by allowing a small amount of water or ethylene glycol to act on these compounds and polymerizing 2 to 10 molecules of alkoxysilane can be exemplified.
  • examples of the methylsilazane compound include a monomer of methylsilane and an oligomer having methylsilazane as a constituent component.
  • the solvent used in the present invention there is an ability to dissolve a methylsilazane compound, an alkoxysilazane compound, and a silazane compound, and an organic solvent having a boiling point in the range of 50 to 210 ° C is used. it can.
  • a preferred example is a hydrocarbon solvent.
  • the methylsilazane compound is preferably applied as a solution and the concentration thereof is preferably 1.0 to 2.5%.
  • Methylsilazane compounds are used to change the physical properties of the coating surface.
  • the weight% of the methylsilazane compound to the total of the alkoxysilane compound and the methylsilazane compound is preferably 10.0 to 70.0%. If a coating film is formed in a range where the methylsilazane compound is more than 70% by weight, the crosslink density is low, so the physical properties such as the strength of the coating film are low. This is because there is a shortage.
  • the water repellency is mainly dependent on the methyl group of the methylsilazane compound.
  • the alkoxysilane compound and the methylsilazane compound are applied as a solution, and the concentration thereof is 0.5 to 5.0%.
  • the methylsilazane compound is used at a concentration of 1.0 to 2.5%, and the weight percentage of the methylsilazane compound to the alkoxysilane compound and methylsilazane compound is 10.0 to 70.0. This is the force that the range is appropriate for.
  • the concentration of the methylsilazane compound is 1.0 to 2.5%
  • the concentration of the alkoxysilane compound is 0.5 to 5.0%.
  • a coating method it is performed by hand painting with a spray gun or a sponge. After application, the excess methylsilazane compound and alkoxysilane are wiped off with an ultrafine fiber cloth having chemical fiber strength, and the coating is completed by leaving it at room temperature. Reaction of methylsilazane compound and alkoxysilane proceeds due to moisture in the air, and polymerization and crosslinking reaction proceed
  • a coating film having a methyl group bonded to a silicon atom is obtained and exhibits water repellency. Similarly, when using methylsilane and alkoxysilane
  • Methylsilazane compounds react with moisture
  • a methylsilane-based coating film “anhydrous silicic acid coating film” is formed on a coating film made of an organic polymer, and becomes water repellent. For this reason, antifouling property improves.
  • a polymer or oligomer of a methylsilazane compound is used as a raw material. Because of the methyl group bonded to the silicon, the coating film derived from the methylsilazane compound has better sagability than the silicic anhydride coating film derived from silazane and is easy to handle.
  • FIG. 1 is a cross-sectional view of a steel material prepared by applying a methylsilazane compound.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)

Abstract

A water-repellent coating film which is easy to handle. The coating film is characterized by being produced from a methylsilazane compound selected from methylsilazane monomers and methylsilazane oligomers and an alkoxysilane compound selected from alkoxysilane monomers and alkoxysilane oligomers. The proportion of the methylsilazane compound to the sum of the alkoxysilane compound and methylsilazane compound is preferably 10.0-70.0 wt.%. The methylsilazane compound and alkoxysilane compound are applied preferably as a solution having a concentration of 1.0-2.5%. The solvent to be used preferably is a hydrocarbon solvent.

Description

明 細 書  Specification
メチルシラザン系化合物を使用した撥水性塗膜、及び塗膜の製造方法 技術分野  Water-repellent coating film using methylsilazane compound and coating film manufacturing method
[0001] 本発明は、メチルシラザン系化合物を使用した撥水性塗膜、及び塗膜の製造方法に 関するものである。  [0001] The present invention relates to a water-repellent coating film using a methylsilazane compound and a method for producing the coating film.
背景技術  Background art
[0002] 家電製品、 自動車などの表面は、さび止め、外観の美観向上、傷の発生防止などの ため、塗装が施されている。その塗装は、種々の方式があるが、一例をあげれば、鋼 材の上に亜鉛メツキを施し、下地塗装、ベースカラー塗装、クリア層塗装が行われて いる。し力しながら、光沢の向上'維持の面で不満があり、洗車時の水滴の拭き取り 性の向上や撥水 ·撥油性の面でなお一層の向上が期待されている。  [0002] The surface of home appliances and automobiles is painted to prevent rust, improve the appearance and prevent scratches. There are various methods of painting, but as an example, zinc plating is applied on steel, and base coating, base color coating, and clear layer coating are performed. However, there is dissatisfaction in terms of improving and maintaining gloss, and further improvement is expected in terms of wiping off water drops during car washing and water and oil repellency.
[0003] 近年、有機質塗膜の上に無機系塗膜の形成が注目されて ヽる。例えば、不飽和基を 含有するビニルシラザン系重合体に有機過酸化物を反応させて、過酸化物置換シラ ザン重合体を得、これを熱硬化させて架橋シラザン系重合体を得る方法が開示され ている (特許文献 1)。しかし、この方法は取扱が一般に困難な有機過酸ィ匕物を加熱 する必要があり取扱が難 、欠点がある。  [0003] In recent years, the formation of inorganic coatings on organic coatings has attracted attention. For example, a method of obtaining a crosslinked silazane polymer by reacting an organic peroxide with a vinylsilazane polymer containing an unsaturated group to obtain a peroxide-substituted silazane polymer and thermally curing the polymer is disclosed. (Patent Document 1). However, this method has a drawback in that it is difficult to handle organic peroxides, which are generally difficult to handle, and it is difficult to handle.
[0004] 特許文献 1 :： 特開平 07— 233261号公報  [0004] Patent Document 1: Japanese Patent Application Laid-Open No. 07-233261
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0005] そこで、本発明の目的は、取扱が容易な、撥水性塗膜及びその製造法を提供するこ とである。 [0005] Accordingly, an object of the present invention is to provide a water-repellent coating film and a method for producing the same that are easy to handle.
課題を解決するための手段  Means for solving the problem
[0006] すなわち本発明は、 That is, the present invention relates to
(1) メチルシラザン系化合物と、アルコキシシラン系化合物力 製造されたことを 特徴とする塗膜、  (1) Methylsilazane compound and alkoxysilane compound
(2) メチルシラザン系化合物と、アルコキシシラン系化合物力 塗膜を作成するこ とを特徴とする塗膜の製造方法、 (3) (1)において、メチルシラザン系化合物の、アルコキシシラン系化合物及びメ チルシラザン系化合物の合計に対する重量％力 10. 0〜70. 0であることを特徴と する、 (2) Methylsilazane compound and alkoxysilane compound strength coating film manufacturing method characterized by creating a coating film, (3) In (1), the weight% force of the methylsilazane compound to the total of the alkoxysilane compound and the methylsilazane compound is 10.0 to 70.0,
(4) (2)にお 、て、メチルシラザン系化合物の、アルコキシシラン系化合物及びメ チルシラザン系化合物の合計に対する重量％力 10. 0〜70. 0であることを特徴と する、  (4) In (2), the weight% force of the methylsilazane compound to the total of the alkoxysilane compound and the methylsilazane compound is 10.0 to 70.0,
(5) (1)、 (3)において、メチルシラザン系化合物は、溶液として塗布され、その濃 度は 1. 0〜2. 5%であることを特徴とする、  (5) In (1) and (3), the methylsilazane compound is applied as a solution, and its concentration is 1.0 to 2.5%,
(6) (2)、（4)において、メチルシラザン系化合物は、溶液として塗布され、その濃 度は、 1. 0〜2. 5%であることを特徴とする、  (6) In (2) and (4), the methylsilazane compound is applied as a solution, and its concentration is 1.0 to 2.5%,
(7) (1)、 (3)において、アルコキシシラン系化合物は、溶液として塗布され、その 濃度は、 0. 5〜5. 0%であることを特徴とする、  (7) In (1) and (3), the alkoxysilane compound is applied as a solution, and its concentration is 0.5 to 5.0%,
(8) (2)、（4)において、アルコキシシラン系化合物は、溶液として塗布され、その 濃度は、 0. 5〜5. 0%であることを特徴とする、  (8) In (2) and (4), the alkoxysilane compound is applied as a solution, and its concentration is 0.5 to 5.0%,
(9) (5)において、メチルシラザン系化合物の塗布に使用する溶媒は、炭化水素系 溶媒であることを特徴とする、  (9) In (5), the solvent used for coating the methylsilazane compound is a hydrocarbon solvent,
(10) (6)において、メチルシラザン系化合物の塗布に使用する溶媒は、炭化水素 系溶媒であることを特徴とする、  (10) In (6), the solvent used for coating the methylsilazane compound is a hydrocarbon solvent,
(11) (5)において、アルコキシシラン系化合物の塗布に使用する溶媒は、炭化水 素系溶媒であることを特徴とする、  (11) In (5), the solvent used for coating the alkoxysilane compound is a hydrocarbon solvent,
(12) (6)において、アルコキシシラン系化合物の塗布に使用する溶媒は、炭化水 素系溶媒であることを特徴とする、  (12) In (6), the solvent used for coating the alkoxysilane compound is a hydrocarbon solvent,
(11) (5)、（7)、（9)、（11)において、メチルシラザン系化合物化合物、アルコキシ シラン系化合物力 なる溶液が塗布 ·乾燥された後さらに塗布面を摩擦されているこ とを特徴とする、  (11) In (5), (7), (9), and (11), after the solution consisting of a methylsilazane compound compound and an alkoxysilane compound is applied and dried, the coated surface is further rubbed. Characterized by the
(12) (6)、 (8)、（10)、（12)において、メチルシラザンィ匕合物、アルコキシシラン系 化合物からなる溶液が塗布 ·乾燥された後さらに塗布面を摩擦することを特徴とする [0007] 本発明において使用するメチルシラザン系単量体乃至オリゴマーは、例えば特表 20 03— 514822号公報、特開昭 60— 226890号公報に記載されている。塗膜を形成 するには、これらメチルシラザン系単量体乃至オリゴマーの溶液を塗布し、溶媒を除 去する方法で作成される。 (12) In (6), (8), (10), (12), the coating surface is further rubbed after the solution of methylsilazane compound and alkoxysilane compound is applied and dried. To [0007] The methylsilazane monomers and oligomers used in the present invention are described in, for example, JP-T-203-03-514822 and JP-A-60-226890. In order to form a coating film, it is prepared by applying a solution of these methylsilazane monomers or oligomers and removing the solvent.
[0008] 本発明において、使用されるアルコキシシラン系化合物とは、アルコキシシランの単 量体、及びこれらアルコキシシランのオリゴマーをあげることができる。ここに使用され るアルコキシシランィ匕合物としては、好ましくは、トリメトキシシラン、テトラメトキシシラン 、トリエトキシシラン、テトラエトキシシランをあげることができる。またこれら化合物に少 量の水またはエチレングリコールを作用させて 2乃至 10分子のアルコキシシランを重 合したシラン系化合物をあげることができる。  In the present invention, examples of the alkoxysilane compound used include alkoxysilane monomers and oligomers of these alkoxysilanes. Preferred examples of the alkoxysilane compound used here include trimethoxysilane, tetramethoxysilane, triethoxysilane, and tetraethoxysilane. In addition, a silane compound obtained by allowing a small amount of water or ethylene glycol to act on these compounds and polymerizing 2 to 10 molecules of alkoxysilane can be exemplified.
[0009] 本発明にお 、て、メチルシラザン系化合物としては、メチルシランの単量体、メチル シラザンを構成成分とするオリゴマーをあげることができる。  In the present invention, examples of the methylsilazane compound include a monomer of methylsilane and an oligomer having methylsilazane as a constituent component.
[0010] 本発明にお 、て使用される溶剤としては、メチルシラザン系化合物、アルコキシシラ ザン化合物、シラザンィ匕合物を溶解する能力があり、沸点 50〜210°Cの範囲の有機 溶剤を使用できる。好ましい例として、炭化水素系溶剤をあげることができる。  [0010] As the solvent used in the present invention, there is an ability to dissolve a methylsilazane compound, an alkoxysilazane compound, and a silazane compound, and an organic solvent having a boiling point in the range of 50 to 210 ° C is used. it can. A preferred example is a hydrocarbon solvent.
[0011] 本発明において、メチルシラザン系化合物は、溶液として塗布され、その濃度は 1. 0 〜2. 5%で使用するのが好ましい。  In the present invention, the methylsilazane compound is preferably applied as a solution and the concentration thereof is preferably 1.0 to 2.5%.
メチルシラザン系化合物は塗膜の表面の物性を変化させるために使用するのであり Methylsilazane compounds are used to change the physical properties of the coating surface.
、 2. 5%より高濃度となると、もろさが出るなどの欠点が発生するためである。 1. 0% より少なくなると撥水性の向上が少ないからである。 2. If the concentration is higher than 5%, defects such as brittleness occur. 1. When the content is less than 0%, the improvement in water repellency is small.
[0012] 本発明にお!/、て、メチルシラザン系化合物の、アルコキシシラン系化合物乃びメチル シラザンィ匕合物の合計に対する重量％は、 10. 0〜70. 0%であることが好ましい。 メチルシラザン系化合物が 70重量％より多い範囲で塗膜を作成すると、架橋密度 が小さいため、塗膜の強度などの物性が低ぐ 10重量％より少ない範囲で塗膜を作 成すると、撥水性が不足するからである。撥水性は、主としてメチルシラザン系化合 物のメチル基に依存して 、る力らである。 [0012] In the present invention, the weight% of the methylsilazane compound to the total of the alkoxysilane compound and the methylsilazane compound is preferably 10.0 to 70.0%. If a coating film is formed in a range where the methylsilazane compound is more than 70% by weight, the crosslink density is low, so the physical properties such as the strength of the coating film are low. This is because there is a shortage. The water repellency is mainly dependent on the methyl group of the methylsilazane compound.
[0013] 本発明にお 、て、アルコキシシラン系化合物乃びメチルシラザンィ匕合物は、溶液とし て塗布され、その濃度は、 0. 5〜5. 0%である。 メチルシラサン系化合物は、その濃度として 1. 0〜2. 5%で使用し、メチルシラサン 系化合物の、アルコキシシラン系化合物乃びメチルシラザンィ匕合物に対する重量％ を、 10. 0-70. 0とするために前記範囲が適当である力 である。 In the present invention, the alkoxysilane compound and the methylsilazane compound are applied as a solution, and the concentration thereof is 0.5 to 5.0%. The methylsilazane compound is used at a concentration of 1.0 to 2.5%, and the weight percentage of the methylsilazane compound to the alkoxysilane compound and methylsilazane compound is 10.0 to 70.0. This is the force that the range is appropriate for.
[0014] 本発明にお 、て、メチルシラザン系化合物と、アルコキシシランは、使用に際して メチルシラザン系化合物の濃度は 1. 0〜2. 5%、 In the present invention, when the methylsilazane compound and the alkoxysilane are used, the concentration of the methylsilazane compound is 1.0 to 2.5%,
アルコキシシラン系化合物の濃度は、 0. 5〜5. 0%  The concentration of the alkoxysilane compound is 0.5 to 5.0%.
となるように調整して塗布される。  It is applied so that it is adjusted.
[0015] 塗布方法としては、スプレーガンもしくはスポンジ等による手塗りで行われる。塗布後 、化学繊維力 なる極細繊維布で過剰のメチルシラザン系化合物、アルコキシシラン を拭き取り、常温に放置することにより塗布が完了する。空気中の水分により、メチル シラザン系化合物、アルコキシシランの反応が進行して、重合と架橋反応が進行する [0015] As a coating method, it is performed by hand painting with a spray gun or a sponge. After application, the excess methylsilazane compound and alkoxysilane are wiped off with an ultrafine fiber cloth having chemical fiber strength, and the coating is completed by leaving it at room temperature. Reaction of methylsilazane compound and alkoxysilane proceeds due to moisture in the air, and polymerization and crosslinking reaction proceed
[0016] メチルシラザン系化合物は水分と反応して [0016] Methylsilazane compounds react with moisture
[化 1]  [Chemical 1]
Figure imgf000005_0001
メチルシラノール、シラノールとなり、さらに縮合して
Figure imgf000005_0001
It becomes methyl silanol, silanol, and further condensation
[化 2] [Chemical 2]
Figure imgf000005_0002
Figure imgf000005_0002
珪素原子に結合したメチル基を有する塗膜が得られ、撥水性を示すのである。 同様に、メチルシランとアルコキシシランを使用する場合は  A coating film having a methyl group bonded to a silicon atom is obtained and exhibits water repellency. Similarly, when using methylsilane and alkoxysilane
メチルシラザン系化合物は水分と反応して  Methylsilazane compounds react with moisture
メチルシラノールとなり、アルコキシシランと縮合して珪素原子に結合したメチル基を 有する塗膜が得られ撥水性を示すのである。  It becomes methylsilanol, and a coating film having a methyl group condensed with an alkoxysilane and bonded to a silicon atom is obtained and exhibits water repellency.
発明を実施するための最良の形態 [0017] 実施例 1メチルシラザン系化合物 2. 0重量％、メトキシシラン 4. 0重量％石油系溶剤 を作成し、鋼材層 2、亜鉛メツキ層 3、下地塗層 4、ベースカラー塗層 5、クリア榭脂層 6からなる塗装鋼板の上にスポンジを使用して塗布した。塗布後、極細繊維布で拭き 上げ、図 1に示した塗膜を得た。得られたメチルシラザン系化合物に由来する層 1に よる塗膜は、美麗な外観を示し、撥水性も優れていた。 BEST MODE FOR CARRYING OUT THE INVENTION Example 1 Methylsilazane compound 2.0 wt%, methoxysilane 4.0 wt% Petroleum solvent was prepared, steel material layer 2, zinc plating layer 3, primer coating layer 4, base color coating layer 5, It apply | coated using the sponge on the coated steel plate which consists of a clear resin layer 6. FIG. After coating, it was wiped off with an extra fine fiber cloth to obtain the coating film shown in FIG. The resulting coating film of layer 1 derived from the methylsilazane compound showed a beautiful appearance and was excellent in water repellency.
[0018] 実施例 1と同様に操作して表 1の結果を得た。  [0018] The same operation as in Example 1 was performed to obtain the results in Table 1.
[表 1]
Figure imgf000006_0001
得られた塗膜は、美麗な外観を示し、撥水性も優れていた。 [table 1]
Figure imgf000006_0001
The obtained coating film showed a beautiful appearance and was excellent in water repellency.
産業上の利用可能性  Industrial applicability
[0019] 本発明によれば、塗膜の表面に撥水性膜を形成することが可能となり、このため以下 の好ま 、効果を得ることが可能となった。  [0019] According to the present invention, it is possible to form a water-repellent film on the surface of the coating film, and for this reason, the following preferences and effects can be obtained.
(1)有機高分子からなる塗膜の上にメチルシラン系塗膜'無水珪酸塗膜が形成され 、撥水性となる。このため、防汚性が向上する。  (1) A methylsilane-based coating film “anhydrous silicic acid coating film” is formed on a coating film made of an organic polymer, and becomes water repellent. For this reason, antifouling property improves.
(2)表面が撥水性となる結果、洗車の際水滴のふき取り性が優れる。  (2) As a result of the water repellency of the surface, the wiping property of water drops is excellent during car washing.
(3)原料としてメチルシラザン系化合物の重合体乃至オリゴマーを用いている。ケィ 素に結合しているメチル基のため、メチルシラザン系化合物に由来する塗膜は、シラ ザンに由来する無水珪酸の塗膜より橈み性がすぐれ、取扱が容易である。  (3) A polymer or oligomer of a methylsilazane compound is used as a raw material. Because of the methyl group bonded to the silicon, the coating film derived from the methylsilazane compound has better sagability than the silicic anhydride coating film derived from silazane and is easy to handle.
図面の簡単な説明  Brief Description of Drawings
[0020] [図 1]メチルシラザン系化合物を塗布し作成した鋼材の断面図である。 FIG. 1 is a cross-sectional view of a steel material prepared by applying a methylsilazane compound.

Claims

請求の範囲 The scope of the claims
[I] メチルシラザン系化合物と、アルコキシシラン系化合物力 製造されたことを特徴とす る塗膜。  [I] A coating film characterized by the ability to produce a methylsilazane compound and an alkoxysilane compound.
[2] メチルシラザン系化合物と、アルコキシシラン系化合物力 塗膜を作成することを特 徴とする塗膜の製造方法。  [2] Methylsilazane compound and alkoxysilane compound strength A method for producing a coating film, characterized by producing a coating film.
[3] 請求項 1にお 、て、メチルシラザン系化合物の、アルコキシシラン系化合物及びメチ ルシラザン系化合物の合計に対する重量％力 10. 0〜70. 0であることを特徴とす る塗膜。 [3] The coating film according to claim 1, wherein the weight percentage force of the methylsilazane compound to the total of the alkoxysilane compound and the methylsilazane compound is 10.0 to 70.0.
[4] 請求項 2にお 、て、メチルシラザン系化合物の、アルコキシシラン系化合物及びメチ ルシラザン系化合物の合計に対する重量％力 10. 0〜70. 0であることを特徴とす る塗膜の製造方法。  [4] In the coating film according to claim 2, the weight% force of the methylsilazane compound to the total of the alkoxysilane compound and the methylsilazane compound is 10.0 to 70.0. Production method.
[5] 請求項 1、 3において、メチルシラザン系化合物は、溶液として塗布され、その濃度は [5] In Claims 1 and 3, the methylsilazane compound is applied as a solution, and its concentration is
1. 0〜2. 5%であることを特徴とする塗膜。 1. A coating film characterized by being 0 to 2.5%.
[6] 請求項 2、 4において、メチルシラザン系化合物は、溶液として塗布され、その濃度は[6] In Claims 2 and 4, the methylsilazane compound is applied as a solution, and its concentration is
、 1. 0〜2. 5%であることを特徴とする塗膜の製造方法。 1. A method for producing a coating film, characterized by being from 0 to 2.5%.
[7] 請求項 1、 3において、アルコキシシラン系化合物は、溶液として塗布され、その濃度 は、 0. 5〜5. 0%であることを特徴とする塗膜。 [7] The coating film according to claim 1 or 3, wherein the alkoxysilane compound is applied as a solution, and the concentration thereof is 0.5 to 5.0%.
[8] 請求項 2、 4において、アルコキシシラン系化合物は、溶液として塗布され、その濃度 は、 0. 5〜5. 0%であることを特徴とする塗膜の製造方法。 [8] The method for producing a coating film according to claim 2 or 4, wherein the alkoxysilane compound is applied as a solution, and the concentration thereof is 0.5 to 5.0%.
[9] 請求項 5において、メチルシラザン系化合物の塗布に使用する溶媒は、炭化水素系 溶媒であることを特徴とする塗膜。 [9] The coating film according to claim 5, wherein the solvent used for coating the methylsilazane compound is a hydrocarbon solvent.
[10] 請求項 6において、メチルシラザン系化合物の塗布に使用する溶媒は、炭化水素系 溶媒であることを特徴とする塗膜の製造方法。 [10] The method for producing a coating film according to claim 6, wherein the solvent used for coating the methylsilazane compound is a hydrocarbon solvent.
[II] 請求項 5において、アルコキシシラン系化合物の塗布に使用する溶媒は、炭化水素 系溶媒であることを特徴とする塗膜。  [II] The coating film according to claim 5, wherein the solvent used for coating the alkoxysilane compound is a hydrocarbon solvent.
[12] 請求項 6において、アルコキシシラン系化合物の塗布に使用する溶媒は、炭化水素 系溶媒であることを特徴とする塗膜の製造方法。  [12] The method for producing a coating film according to claim 6, wherein the solvent used for coating the alkoxysilane compound is a hydrocarbon solvent.
[13] 請求項 5、 7、 9、 11にお 、て、メチルシラザン系化合物化合物、アルコキシシラン系 化合物からなる溶液が塗布 ·乾燥された後さらに塗布面を摩擦されていることを特徴 とする塗膜。 [13] In Claims 5, 7, 9, and 11, methylsilazane compound, alkoxysilane A coating film characterized in that the coated surface is further rubbed after the compound solution is applied and dried.
請求項 6、 8、 10、 11において、メチルシラザン化合物、アルコキシシラン系化合物 からなる溶液が塗布 '乾燥された後さらに塗布面を摩擦することを特徴とする塗膜の 製造方法。 12. The method for producing a coating film according to claim 6, 8, 10, or 11, wherein the coated surface is further rubbed after the solution comprising the methylsilazane compound and the alkoxysilane compound is applied and dried.
PCT/JP2005/012036 2005-06-30 2005-06-30 Water-repellent coating film obtained from methylsilazane compound and process for producing coating film WO2007004254A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1026703A (en) * 1996-07-09 1998-01-27 Nikon Corp Lens subjected to water-repellency treatment
JP2003183016A (en) * 2001-12-18 2003-07-03 Hitachi Housetec Co Ltd Method for producing silica-coated molded product, and silica-coated molded product
JP2003327908A (en) * 2002-05-16 2003-11-19 Clariant (Japan) Kk Hydrophilicity promoter and hydrophilicity retaining agent for polysilazane-containing coating film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1026703A (en) * 1996-07-09 1998-01-27 Nikon Corp Lens subjected to water-repellency treatment
JP2003183016A (en) * 2001-12-18 2003-07-03 Hitachi Housetec Co Ltd Method for producing silica-coated molded product, and silica-coated molded product
JP2003327908A (en) * 2002-05-16 2003-11-19 Clariant (Japan) Kk Hydrophilicity promoter and hydrophilicity retaining agent for polysilazane-containing coating film

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