JPH0881643A - Clear coating and coating method therewith - Google Patents
Clear coating and coating method therewithInfo
- Publication number
- JPH0881643A JPH0881643A JP6244839A JP24483994A JPH0881643A JP H0881643 A JPH0881643 A JP H0881643A JP 6244839 A JP6244839 A JP 6244839A JP 24483994 A JP24483994 A JP 24483994A JP H0881643 A JPH0881643 A JP H0881643A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- clear
- ultraviolet absorber
- benzotriazole
- colored
- 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.)
- Pending
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- Paints Or Removers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は耐候性がすぐれ、かつ隣
接下層塗膜との層間付着性が良好なクリヤー塗料とその
塗装法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clear coating having excellent weather resistance and good interlayer adhesion to an adjacent lower layer coating, and a coating method therefor.
【０００２】[0002]
【従来の技術およびその課題】金属、木質材およびプラ
スチック材などを保護し美感性を高めるために、着色塗
料およびクリヤー塗料を順次塗り重ねることは広く行わ
れている。しかしながら、特に屋外などでは該クリヤー
塗膜は太陽光が透過しやすいために、着色塗膜とクリヤ
ー塗膜との層間部分でハガレが生じやすい。例えば、ポ
リオレフィン素材に塩素化ポリオレフィンを含有する着
色塗料を塗装しついでクリヤー塗料を塗装してなる複層
塗膜では、クリヤー塗膜を透過した紫外線が着色塗膜中
の塩素化ポリオレフィンの脱塩酸反応およびその分解な
どを促進して両塗膜の層間付着性を低下させているとみ
られている。2. Description of the Related Art In order to protect metals, wood materials, plastic materials, etc. and enhance aesthetics, it is widely practiced to successively apply colored paint and clear paint. However, especially in the outdoors or the like, since the clear coating film is likely to transmit sunlight, peeling is likely to occur in the interlayer portion between the colored coating film and the clear coating film. For example, in the case of a multilayer coating film in which a colored paint containing a chlorinated polyolefin is applied to a polyolefin material and then a clear paint is applied, the ultraviolet rays transmitted through the clear coating film cause the dechlorination reaction of the chlorinated polyolefin in the colored coating film. It is considered that the interlayer adhesion of both coatings is reduced by promoting the decomposition and the like.
【０００３】従来、かかる欠陥を改善するためにクリヤ
ー塗料に紫外線吸収剤を含有せしめることは公知である
が、いずれも単品で配合することが多く、塩素化ポリオ
レフィンの分解を防止することができず、層間付着性を
向上させることは実現できなかった。Conventionally, it is known that a clear coating material contains an ultraviolet absorber in order to improve such defects, but in many cases, it is often blended as a single product, and the decomposition of the chlorinated polyolefin cannot be prevented. However, it has not been possible to improve the interlayer adhesion.
【０００４】[0004]
【課題を解決するための手段】本発明者らは上記欠陥を
解決するために鋭意研究を重ねた結果、特定の紫外線吸
収剤を併用してクリヤー塗料に配合することによって、
太陽光に長時間さらされても隣接下層着色塗膜との層間
付着性が低下しないことを見出し本発明を完成した。Means for Solving the Problems As a result of intensive studies conducted by the present inventors to solve the above-mentioned deficiencies, the present inventors have formulated a clear coating by using a specific ultraviolet absorber in combination.
The present invention has been completed by finding that the interlayer adhesion to the adjacent lower colored coating film does not deteriorate even when exposed to sunlight for a long time.
【０００５】すなわち、本発明は、 ベンゾトリアゾール系紫外線吸収剤および蓚酸アニリ
ド系紫外線吸収剤の両成分を含有させてなることを特徴
とするクリヤー塗料、 着色塗膜面に上記のクリヤー塗料を塗装することを
特徴とする塗装法、および ポリオレフィン素材（被塗物）に塩素化ポリオレフィ
ンを含有する着色塗料を塗装し、該着色塗面に上記の
クリヤー塗料を塗装することを特徴とする塗装法、 に関する。That is, the present invention is a clear coating characterized by containing both components of a benzotriazole type ultraviolet absorber and an oxalic acid anilide type ultraviolet absorber, and the above-mentioned clear coating is applied to the surface of a colored coating film. And a coating method characterized by coating a colored material containing a chlorinated polyolefin on a polyolefin material (object to be coated), and coating the above-mentioned clear coating on the colored coating surface. .
【０００６】本発明で使用するベンゾトリアゾール系紫
外線吸収剤および蓚酸アニリド系紫外線吸収剤の紫外線
吸収波長域が異なっており、この両者を併用すると紫外
線吸収波長域の範囲が広くなって太陽光などによる紫外
線の殆どを吸収でき、その結果、紫外線による劣化を顕
著に防止できたものと思われる。The benzotriazole-based UV absorber and the oxalic acid anilide-based UV absorber used in the present invention have different UV absorption wavelength ranges. When both are used together, the UV absorption wavelength range is widened and the UV absorption wavelength range may be increased. It seems that most of the ultraviolet rays can be absorbed, and as a result, the deterioration due to the ultraviolet rays can be significantly prevented.
【０００７】以下に本発明についてさらに詳細に説明す
る。本発明のクリヤー塗料は、ベンゾトリアゾール系紫
外線吸収剤および蓚酸アニリド系紫外線吸収剤の両成分
を含有させてなるもので、具体的には、ビヒクル成分お
よび該両紫外線吸収剤を有機溶剤および（または）水に
溶解もしくは分散させてなる。The present invention will be described in more detail below. The clear coating composition of the present invention contains both components of a benzotriazole type ultraviolet absorber and an oxalic acid anilide type ultraviolet absorber. Specifically, the vehicle component and the both ultraviolet absorbers are combined with an organic solvent and (or ) Dissolved or dispersed in water.
【０００８】ベンゾトリアゾール系紫外線吸収剤として
は、例えば、２−（２´−ヒドロキシ−５´−メチル−
フェニル）ベンゾトリアゾール、２−〔２´−ヒドロキ
シ−３´，５´−ジ−（１，１−ジメチルベンジル）フ
ェニル〕−２Ｈ−ベンゾトリアゾール、２−（２´−ヒ
ドロキシ−３´，５´−ジ−tert−ブチルフェニル）ベ
ンゾトリアゾール、２−（２´−ヒドロキシ−３´−te
rt−ブチル−５´−メチルフェニル）ベンゾトリアゾー
ル、２−（２´−ヒドロキシ−３´，５´−ジ−tert−
アミルフェニル）ベンゾトリアゾール、２−（２´−ヒ
ドロキシ−３´，５´−ジ−tert−ブチルフェニル）−
５−クロロベンゾトリアゾール、２−（２´−ヒドロキ
シ−３´，５´−ジ−イソアミルフェニル）ベンゾトリ
アゾール、２−（２´−ヒドロキシ−５´−tert−ブチ
ルフェニル）ベンゾトリアゾールなどがあげられ、これ
らは単独でもしくは複数併用できる。Examples of the benzotriazole type ultraviolet absorber include 2- (2'-hydroxy-5'-methyl-).
Phenyl) benzotriazole, 2- [2'-hydroxy-3 ', 5'-di- (1,1-dimethylbenzyl) phenyl] -2H-benzotriazole, 2- (2'-hydroxy-3', 5 ' -Di-tert-butylphenyl) benzotriazole, 2- (2'-hydroxy-3'-te
rt-Butyl-5'-methylphenyl) benzotriazole, 2- (2'-hydroxy-3 ', 5'-di-tert-
Amylphenyl) benzotriazole, 2- (2'-hydroxy-3 ', 5'-di-tert-butylphenyl)-
5-chlorobenzotriazole, 2- (2'-hydroxy-3 ', 5'-di-isoamylphenyl) benzotriazole, 2- (2'-hydroxy-5'-tert-butylphenyl) benzotriazole and the like can be mentioned. , These can be used alone or in combination.
【０００９】蓚酸アニリド系紫外線吸収剤は蓚酸とアニ
リンとの反応生成物で、蓚酸ジアニリドまたは蓚酸モノ
アニリドなどがある。これらは、オキサニリドまたはオ
キサニル酸ともいう。The oxalic acid anilide type ultraviolet absorber is a reaction product of oxalic acid and aniline, such as oxalic acid dianilide or oxalic acid monoanilide. These are also called oxanilide or oxanilic acid.
【００１０】クリヤー塗料におけるビヒクル成分は、該
クリヤー塗膜の塗膜形成主成分であって、通常の塗料用
樹脂組成物が適用できる。具体的には、水酸基、エポキ
シ基、イソシアネート基、カルボキシル基、酸無水基、
メチロール基、酸無水基のハーフエステル基、シラノー
ル基、アルコキシシラン基などから選ばれた１種以上の
架橋性官能基を有せしめたアクリル樹脂、ポリエステル
樹脂、アルキド樹脂、フッ素樹脂、ウレタン樹脂などの
基体樹脂に、これらの官能基と反応しうる架橋剤とを混
合してなる架橋硬化性樹脂組成物があげられる。該これ
らの混合比率は特に制限されないが、該両成分の合計重
量に基づいて、基体樹脂は５０〜９５％、特に６０〜８
５％、架橋剤は５０〜５％、特に４０〜１５％が好まし
い。該架橋剤としては、メチロール化および（または）
アルコキシ化したメラミン樹脂、尿素樹脂およびベンゾ
グアナミン樹脂、ポリイソシアネート化合物、ブロック
ポリイソシアネート化合物、エポキシ基含有化合物、カ
ルボキシル基含有化合物などがあげられる。The vehicle component in the clear coating is the main component for forming the coating film of the clear coating film, and ordinary resin compositions for coating materials can be applied. Specifically, a hydroxyl group, an epoxy group, an isocyanate group, a carboxyl group, an acid anhydride group,
Acrylic resins, polyester resins, alkyd resins, fluororesins, urethane resins, etc. that have one or more crosslinkable functional groups selected from methylol groups, half-esters of acid anhydride groups, silanol groups, alkoxysilane groups, etc. Examples thereof include a crosslinkable curable resin composition obtained by mixing a base resin with a crosslinking agent capable of reacting with these functional groups. The mixing ratio of these is not particularly limited, but the base resin is 50 to 95%, particularly 60 to 8% based on the total weight of the both components.
5%, the cross-linking agent is preferably 50 to 5%, and particularly preferably 40 to 15%. The cross-linking agent may be methylolated and / or
Examples thereof include alkoxylated melamine resins, urea resins and benzoguanamine resins, polyisocyanate compounds, blocked polyisocyanate compounds, epoxy group-containing compounds, and carboxyl group-containing compounds.
【００１１】上記架橋性官能基から選ばれた相互に反応
しうる２種以上を同一分子中に併存させてなる自己硬化
性樹脂も使用できる。また、上記樹脂に重合性不飽和二
重結合を含有せしめ、さらに必要に応じて重合性不飽和
単量体を併用してなる紫外線や電子線などの照射で架橋
硬化する樹脂組成物も使用できる。It is also possible to use a self-curing resin in which two or more kinds selected from the above-mentioned crosslinkable functional groups and capable of reacting with each other coexist in the same molecule. Further, a resin composition which contains a polymerizable unsaturated double bond in the above resin and which is optionally combined with a polymerizable unsaturated monomer and which is crosslinked and cured by irradiation with ultraviolet rays or electron beams can also be used. .
【００１２】これらの基体樹脂、架橋剤、自己硬化性樹
脂などはそれ自体既知のものが使用できる。本発明のク
リヤー塗料は、上記のビヒクル成分をベンゾトリアゾー
ル系紫外線吸収剤および蓚酸アニリド系紫外線吸収剤の
両成分と共に有機溶剤および（または）水に溶解もしく
は分散せしめることによって調製される。まず、ベンゾ
トリアゾール系紫外線吸収剤と蓚酸アニリド系紫外線吸
収剤との構成割合は目的に応じて任意に選択できるが、
例えば該両紫外線吸収剤の合計重量に基いて、ベンゾト
リアゾール系紫外線吸収剤は１０〜９０％、特に４０〜
６０％、蓚酸アニリド系紫外線吸収剤９０〜１０％、特
に６０〜４０％が好ましい。また、該両紫外線吸収剤
は、ビヒクル成分の固形分１００重量部あたり、１〜４
重量部、特に２〜３重量部が好ましい。本発明のクリヤ
ー塗料には、さらに必要に応じてヒンダードアミン系光
安定剤などを適宜配合することができる。As the base resin, the cross-linking agent, the self-curing resin and the like, those known per se can be used. The clear coating composition of the present invention is prepared by dissolving or dispersing the above vehicle component in an organic solvent and / or water together with both the benzotriazole type ultraviolet absorber and the oxalic acid anilide type ultraviolet absorber. First, the composition ratio of the benzotriazole-based UV absorber and the oxalic acid anilide-based UV absorber can be arbitrarily selected according to the purpose,
For example, based on the total weight of both UV absorbers, the benzotriazole UV absorber is 10 to 90%, especially 40 to
60%, anilic acid anilide type ultraviolet absorber 90 to 10%, and particularly 60 to 40% are preferable. Further, both of the ultraviolet absorbers are 1 to 4 per 100 parts by weight of the solid content of the vehicle component.
Weight part, especially 2-3 weight part is preferable. The clear coating composition of the present invention may further contain a hindered amine light stabilizer and the like, if necessary.
【００１３】本発明は、上記クリヤー塗料を着色塗膜面
に塗装することも包含する。該着色塗膜は、ビヒクル成
分および着色剤を有機溶剤および（または）水に混合分
散させてなる着色塗料を塗装し硬化させてなるものであ
って、ビヒクル成分としては上記クリヤー塗料で説明し
たものから適宜選択して使用できる。また、着色剤とし
ては、着色顔料、染料、メタリック顔料、干渉色顔料な
どから選ばれた１種もしくは２種以上が適宜使用でき
る。つまり、該着色塗膜はソリッドカラー塗膜およびメ
タリック塗膜を包含する。The present invention also includes applying the clear coating composition to the surface of the colored coating film. The colored coating film is formed by coating and curing a colored paint obtained by mixing and dispersing a vehicle component and a colorant in an organic solvent and / or water, and the vehicle component is as described in the above clear paint. Can be appropriately selected and used. As the colorant, one kind or two or more kinds selected from a color pigment, a dye, a metallic pigment, an interference color pigment and the like can be appropriately used. That is, the colored coating film includes a solid color coating film and a metallic coating film.
【００１４】本発明のクリヤー塗料を着色塗膜面に塗装
する具体例として、次に示すような塗装システムがあげ
られる。 ａ）自動車外板部に電着塗装、中塗塗装（省略すること
もある）、着色塗装およびクリヤー塗装において、上記
着色塗料および上記クリヤー塗料をそれぞれ使用する。 ｂ）木部に適宜下地処理を施した後、上記着色塗料およ
びクリヤー塗料を順次塗装する。 ｃ）ポリオレフィンなどのプラスチック素材（被塗物）
に、必要に応じてプライマーを塗装してから、上記の着
色塗料およびクリヤー塗料を順次塗装する。As a specific example of applying the clear paint of the present invention to the surface of a colored coating film, the following coating system can be mentioned. a) The above-mentioned colored paint and the above-mentioned clear paint are used in electrodeposition coating, intermediate coating (which may be omitted), colored coating and clear coating on the outer panel of an automobile, respectively. b) After appropriately subjecting the wood part to a base treatment, the colored paint and the clear paint are sequentially applied. c) Polyolefin material such as polyolefin (object to be coated)
First, a primer is applied, if necessary, and then the above-mentioned colored paint and clear paint are applied in sequence.
【００１５】特に、ｃ）において、着色塗料として塩素
化ポリオレフィンを含有する塗料を使用し、該着色塗面
に上記クリヤー塗料を塗装すると本発明の技術的効果を
より顕著に発揮できることは予想外であったので、その
具体例について説明する。In particular, in c), it is unexpected that the technical effect of the present invention can be more remarkably exhibited by using a paint containing a chlorinated polyolefin as the color paint and applying the clear paint on the colored coating surface. Since there is, a specific example will be described.
【００１６】着色塗料に使用する塩素化ポリオレフィン
の調製に使用するポリオレフィン樹脂は、エチレン、プ
ロピレン、ペンテン、ヘキセン、オクテンおよびデセン
などから選ばれた１種または２種以上のオレフィン類の
重合体およびこれらのオレフィン類を３０重量％以上含
む他の重合性単量体との共重合体などが挙げられる。こ
れらのポリオレフィン樹脂の重量平均分子量は２０，０
００〜２００，０００、特に５０，０００〜１５０，０
００が好ましい。そして、その塩素化は、約５０〜１２
０℃において、該ポリオレフィン樹脂の有機溶剤液中に
塩素ガスを吹き込むことによって行われる。塩素化は、
塩素化ポリオレフィン中の塩素含有率が１５〜２８重量
％、特に１８〜２５重量％になるような範囲が好まし
い。The polyolefin resin used for the preparation of the chlorinated polyolefin used for the colored paint is a polymer of one or more kinds of olefins selected from ethylene, propylene, pentene, hexene, octene and decene, and the like. And a copolymer with another polymerizable monomer containing 30% by weight or more of the above olefins. The weight average molecular weight of these polyolefin resins is 20,0.
00 to 200,000, especially 50,000 to 150,000
00 is preferable. And the chlorination is about 50-12
It is carried out by blowing chlorine gas into an organic solvent solution of the polyolefin resin at 0 ° C. Chlorination is
It is preferable that the chlorine content in the chlorinated polyolefin is 15 to 28% by weight, particularly 18 to 25% by weight.
【００１７】上記ｃ）で用いる着色塗料は塩素化ポリオ
レフィンを含有することが必要であるが、さらにアクリ
ル樹脂、ポリエステル樹脂、アルキド樹脂、フッ素樹
脂、ウレタン樹脂などを配合できる。また、これらの塩
素化ポリオレフィンやその他の樹脂の両方またはいずれ
かに水酸基、エポキシ基、イソシアネート基、カルボキ
シル基、酸無水基、メチロール基、酸無水基のハーフエ
ステル基、シラノール基、アルコキシシラン基などから
選ばれた１種または２種以上の架橋性官能基を有せし
め、これらの官能基と反応しうる架橋剤とを混合してな
る架橋硬化性樹脂組成物が好ましい。該両成分の混合比
率は特に制限されないが、該両成分の合計重量に基い
て、基体樹脂は５０〜９５％、特に６０〜８５％、架橋
剤は５０〜５％、特に４０〜１５％が好ましい。該架橋
剤としては、メチロール化および（または）アルコキシ
化メラミン樹脂、尿素樹脂、ベンゾグアナミン樹脂、ポ
リイソシアネート化合物、ブロックポリイソシアネート
化合物、エポキシ基含有化合物、カルボキシル基含有化
合物などがあげられる。The colored paint used in the above item c) needs to contain a chlorinated polyolefin, and may further contain an acrylic resin, a polyester resin, an alkyd resin, a fluororesin, a urethane resin and the like. Further, hydroxyl groups, epoxy groups, isocyanate groups, carboxyl groups, acid anhydride groups, methylol groups, half ester groups of acid anhydride groups, silanol groups, alkoxysilane groups, etc., on both or either of these chlorinated polyolefins and other resins. A cross-linking curable resin composition having one or more cross-linking functional groups selected from the above and mixing a cross-linking agent capable of reacting with these functional groups is preferable. The mixing ratio of the both components is not particularly limited, but based on the total weight of the both components, the base resin is 50 to 95%, particularly 60 to 85%, the crosslinking agent is 50 to 5%, and particularly 40 to 15%. preferable. Examples of the cross-linking agent include methylol- and / or alkoxylated melamine resins, urea resins, benzoguanamine resins, polyisocyanate compounds, blocked polyisocyanate compounds, epoxy group-containing compounds, and carboxyl group-containing compounds.
【００１８】また、上記塩素化ポリオレフィンやその他
の樹脂のいずれかまたは両方に重合性不飽和二重結合を
含有せしめ、さらに必要に応じて重合性不飽和単量体を
併用してなる紫外線や電子線などの照射で架橋硬化する
樹脂組成物も使用できる。Further, one or both of the above-mentioned chlorinated polyolefin and other resins contain a polymerizable unsaturated double bond, and if necessary, a polymerizable unsaturated monomer is used in combination with ultraviolet rays or electrons. A resin composition that can be crosslinked and cured by irradiation with rays or the like can also be used.
【００１９】ｃ）の塗装工程において、好適には、着色
塗料およびクリヤー塗料として水酸基含有樹脂およびポ
リイソシアネート化合物を含有する２液型塗料を使用す
る；着色塗料として水酸基含有樹脂およびメラミン樹脂
を含有し、クリヤー塗料として水酸基含有樹脂およびポ
リイソシアネート化合物を含有する２液型塗料を使用す
る；着色塗料として水酸基含有樹脂を含むがポリイソシ
アネート化合物を含有しないもの、クリヤー塗料として
水酸基含有樹脂およびポリイソシアネート化合物を含有
する２液型塗料を使用し、該ポリイソシアネート化合物
のしみこみによって着色塗膜を硬化せしめる方法；など
もあげられる。これらの着色塗料には塩素化ポリオレフ
ィンが、クリヤー塗料にはベンゾトリアゾール系紫外線
吸収剤および蓚酸アニリド系紫外線吸収剤の両成分がそ
れぞれ含有していることは明らかである。In the coating step c), preferably, a two-pack type coating containing a hydroxyl group-containing resin and a polyisocyanate compound is used as the colored coating composition and the clear coating composition; a hydroxyl group-containing resin and a melamine resin are contained as the colored coating composition. A two-pack type paint containing a hydroxyl group-containing resin and a polyisocyanate compound as a clear paint; a colored paint containing a hydroxyl group-containing resin but not a polyisocyanate compound, and a clear paint containing a hydroxyl group-containing resin and a polyisocyanate compound And a method of using a two-component type coating material contained therein to cure the colored coating film by soaking in the polyisocyanate compound; and the like. It is clear that these colored paints contain chlorinated polyolefin, and the clear paint contains both components of benzotriazole type ultraviolet absorber and oxalic acid anilide type ultraviolet absorber.
【００２０】ｃ）のポリオレフィンなどのプラスチック
素材に、塩素化ポリオレフィンを含有する着色塗料を塗
装し、該着色塗面に上記クリヤー塗料を塗装してなる複
層塗膜では、クリヤー塗膜のベンゾトリアゾール系およ
び蓚酸アニリド系からなる紫外線吸収剤の吸収波長域が
それぞれ単独よりも広範囲であるので、太陽光などに含
まれる紫外線の殆どを吸収され、着色塗膜中の塩素化ポ
リオレフィンの脱塩酸反応が抑制でき、紫外線劣化を防
止できた。In a multilayer coating film obtained by coating a plastic material such as polyolefin of c) with a chlorinated polyolefin-containing colored coating material and coating the colored coating surface with the above clear coating material, a clear coating film such as benzotriazole can be used. Since the absorption wavelength range of the UV absorbers composed of oxalic acid anilide type and oxalic acid anilide type is wider than that of the single type, most of the UV rays contained in sunlight are absorbed, and the dechlorination reaction of the chlorinated polyolefin in the colored coating film It was possible to suppress, and it was possible to prevent ultraviolet deterioration.
【００２１】以下に本発明の実施例および比較例につい
て説明する。 Ｉ 試料Examples of the present invention and comparative examples will be described below. I sample
【００２２】（１）被塗物 自動車バンパー用ポリプロピレンを有機溶剤で脱脂し清
浄にしたもの。(1) Object to be coated A product obtained by degreasing and cleaning polypropylene for automobile bumpers with an organic solvent.
【００２３】（２）着色塗料 塩素化ポリプロピレン（重量平均分子量約７０，００
０、塩素含有率２１重量％）１００重量部あたり、アル
ミニウム顔料３０重量部配合してなるものを有機溶剤
（トルエン／キシレン＝１／１重量比）に混合し塗装適
性粘度に調整して、メタリック塗料を得た。(2) Coloring paint Chlorinated polypropylene (weight average molecular weight of about 70,000)
0, chlorine content 21% by weight) 100 parts by weight of aluminum pigment mixed with an organic solvent (toluene / xylene = 1/1 weight ratio) to adjust the coating viscosity to a metallic level. Got the paint.
【００２４】II 実施例１〜３および比較例１〜３ 下記表１に示した成分を混合し、有機溶剤（トルエン／
キシレン＝１／１重量比）を加えて塗装適性粘度に調整
して本発明のクリヤー塗料（２液型）を調製した。II Examples 1 to 3 and Comparative Examples 1 to 3 The components shown in Table 1 below were mixed to prepare an organic solvent (toluene /
(Xylene = 1/1 weight ratio) was added to adjust the viscosity suitable for coating to prepare the clear coating material (two-pack type) of the present invention.
【００２５】[0025]
【表１】 [Table 1]
【００２６】III 実施例４〜６および比較例４〜６ 上記被塗物に着色塗料を噴霧塗装し（硬化膜厚で１５
μ）、ウエットオンウエットで実施例１〜３および比較
例１〜３のクリヤー塗料を塗装し（硬化膜厚で４０
μ）、ついで８０℃で２０分加熱して両塗膜を硬化せし
めた。これらの塗装工程および塗膜性能について表２に
示した。III Examples 4 to 6 and Comparative Examples 4 to 6 A colored coating material was spray-coated on the above-mentioned object to be coated (cured film thickness: 15).
μ) and apply the clear paints of Examples 1 to 3 and Comparative Examples 1 to 3 on a wet-on-wet basis (cured film thickness: 40).
μ) and then heated at 80 ° C. for 20 minutes to cure both coating films. Table 2 shows these coating processes and coating film performance.
【００２７】[0027]
【表２】 [Table 2]
【００２８】（１）耐候性（促進耐候性） 促進耐候性：Ｑパネル社製促進耐候性試験機を用いたＱ
ＵＶ促進バクロ試験による。 試験条件：紫外線照射 １６H ／６０℃ 水凝結 ８H ／５０℃ を１サイクルとして４８０時間（１２５サイクル）試験
した後の塗膜を評価した。 ○：ほとんど初期とかわらない光沢を保っている。 △：光沢低下、白化現象が認められる。 ×：著しい光沢低下、ヒビワレ、白化現象が認められ、
不合格である。(1) Weather resistance (accelerated weather resistance) Accelerated weather resistance: Q using an accelerated weather resistance tester manufactured by Q Panel Co.
According to UV accelerated baculo test. Test conditions: UV irradiation 16H / 60 ° C Water condensation 8H / 50 ° C was set as one cycle, and a coating film after a test for 480 hours (125 cycles) was evaluated. ◯: The gloss is almost the same as the initial stage. Δ: Decrease in gloss and whitening phenomenon are observed. X: Significant decrease in gloss, cracking, and whitening phenomenon were observed,
It is a failure.
【００２９】（２）層間付着性 層間付着性：上記と同様に耐候性試験後、素地に達する
ようにカッターナイフで、試験片のほぼ中央に、直交す
る縦横１１本ずつの平行線を１mmの間隔で引いて１cm2
の中に１００個ます目ができるようにゴバン目状に切り
キズをつけ、その塗面に粘着セロハンテープを貼着し、
それを急激に剥した後のゴバン目塗面を評価した。○は
塗膜の剥離が全く認められない、△はメタリック塗膜と
クリヤー塗膜との層間で剥離が少し認められた、×は層
間剥離が多く認められたことを示す。(2) Interlayer Adhesion Interlayer Adhesion: After the weather resistance test in the same manner as above, with a cutter knife so as to reach the substrate, 11 parallel lines of vertical and horizontal directions of 11 mm were formed at approximately the center of the test piece. 1cm 2 pulled at intervals
Cut into scratches and scratches so that 100 eyes can be made inside, and stick adhesive cellophane tape on the coated surface,
The surface of the painted burdock after it was rapidly peeled off was evaluated. O indicates that no peeling of the coating film was observed, Δ indicates that slight peeling was observed between the metallic coating film and the clear coating film, and X indicates that a large amount of delamination was observed.
【００３０】耐湿性：塗板を５０℃、１００％ＲＨの耐
湿性試験箱の中に５日間置いた後とり出し、塗面の状態
を観察、評価した。異常がないものを○とした。 ○：ワレ、フクレなどの発生が全くない。 △：ワレ、フクレの発生が少し明確に認められる。 ×：ワレ、フクレが著しく発生。Moisture resistance: The coated plate was placed in a humidity resistance test box at 50 ° C. and 100% RH for 5 days and then taken out, and the state of the coated surface was observed and evaluated. If there was no abnormality, it was marked as ○. ◯: No cracks or blisters were found. Δ: Cracks and blisters are slightly clearly observed. X: Significant cracks and blisters occur.
Claims (3)
び蓚酸アニリド系紫外線吸収剤の両成分を含有させてな
ることを特徴とするクリヤー塗料。1. A clear coating comprising both components of a benzotriazole type ultraviolet absorber and an oxalic acid anilide type ultraviolet absorber.
面に塗装することを特徴とする塗装法。2. A coating method, characterized in that the clear coating composition according to claim 1 is applied to the surface of a colored coating film.
ィンを含有する着色塗料を塗装し、該塗面に上記請求項
１のクリヤー塗料を塗装することを特徴とする塗装法。3. A coating method comprising coating a polyolefin material with a colored coating material containing a chlorinated polyolefin, and coating the coated surface with the clear coating material according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6244839A JPH0881643A (en) | 1994-09-12 | 1994-09-12 | Clear coating and coating method therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6244839A JPH0881643A (en) | 1994-09-12 | 1994-09-12 | Clear coating and coating method therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0881643A true JPH0881643A (en) | 1996-03-26 |
Family
ID=17124740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6244839A Pending JPH0881643A (en) | 1994-09-12 | 1994-09-12 | Clear coating and coating method therewith |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0881643A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6218451B1 (en) * | 1991-01-07 | 2001-04-17 | Clariant Finance (Bvi) Limited | Paint stabilizer |
| WO2008102822A1 (en) | 2007-02-20 | 2008-08-28 | Fujifilm Corporation | Polymer material containing ultraviolet absorbent |
| WO2008123504A1 (en) | 2007-03-30 | 2008-10-16 | Fujifilm Corporation | Ultraviolet ray absorber composition |
| WO2009022736A1 (en) | 2007-08-16 | 2009-02-19 | Fujifilm Corporation | Heterocyclic compound, ultraviolet ray absorbent, and composition comprising the ultraviolet ray absorbent |
| WO2009123142A1 (en) | 2008-03-31 | 2009-10-08 | 富士フイルム株式会社 | Ultraviolet absorbent compositions |
| WO2009123141A1 (en) | 2008-03-31 | 2009-10-08 | 富士フイルム株式会社 | Ultraviolet absorbent compositions |
| WO2009136624A1 (en) | 2008-05-09 | 2009-11-12 | 富士フイルム株式会社 | Ultraviolet absorbent composition |
-
1994
- 1994-09-12 JP JP6244839A patent/JPH0881643A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6218451B1 (en) * | 1991-01-07 | 2001-04-17 | Clariant Finance (Bvi) Limited | Paint stabilizer |
| WO2008102822A1 (en) | 2007-02-20 | 2008-08-28 | Fujifilm Corporation | Polymer material containing ultraviolet absorbent |
| WO2008123504A1 (en) | 2007-03-30 | 2008-10-16 | Fujifilm Corporation | Ultraviolet ray absorber composition |
| WO2009022736A1 (en) | 2007-08-16 | 2009-02-19 | Fujifilm Corporation | Heterocyclic compound, ultraviolet ray absorbent, and composition comprising the ultraviolet ray absorbent |
| WO2009123142A1 (en) | 2008-03-31 | 2009-10-08 | 富士フイルム株式会社 | Ultraviolet absorbent compositions |
| WO2009123141A1 (en) | 2008-03-31 | 2009-10-08 | 富士フイルム株式会社 | Ultraviolet absorbent compositions |
| WO2009136624A1 (en) | 2008-05-09 | 2009-11-12 | 富士フイルム株式会社 | Ultraviolet absorbent composition |
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