JPH06116530A - Coating composition and product coated therewith - Google Patents
Coating composition and product coated therewithInfo
- Publication number
- JPH06116530A JPH06116530A JP26442292A JP26442292A JPH06116530A JP H06116530 A JPH06116530 A JP H06116530A JP 26442292 A JP26442292 A JP 26442292A JP 26442292 A JP26442292 A JP 26442292A JP H06116530 A JPH06116530 A JP H06116530A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- acrylic polymer
- alkoxysilyl group
- coating
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、塗料組成物およびそれ
を塗布してなる塗装物に関し、特に耐久性が要求される
自動車用塗装に用いて好適な塗料組成物およびそれを塗
布してなる塗装物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating composition and a coated product obtained by applying the coating composition, and particularly to a coating composition suitable for use in automotive coating requiring durability and applying the coating composition. Regarding painted objects.
【０００２】[0002]
【従来の技術】従来、自動車用の塗料は、主にポリエス
テル系樹脂やアクリル系樹脂等を主体とした塗料が用い
られているが、酸性雨等に対する耐候性が完全ではな
く、また、近年、自動車のバンパー、ドアミラー、ラジ
エータグリル、ホイールカバー等に樹脂形成品が多用さ
れるようになり、これらの樹脂部品の塗装には、金属部
材による車輌本体と同一の色がそのデザインや商品力向
上のために施されている。2. Description of the Related Art Conventionally, paints mainly for polyester resins and acrylic resins have been mainly used as paints for automobiles, but the weather resistance to acid rain is not perfect. Resin-molded products are now widely used for automobile bumpers, door mirrors, radiator grills, wheel covers, etc.When painting these resin parts, the same color as the vehicle body made of metal is used to improve its design and product strength. It is provided for.
【０００３】この様な樹脂部品の塗装は、ポリウレタン
樹脂を主成分とした塗料により、ベースコート２を塗装
して未乾燥状態でクリヤコート１を塗装するいわゆるウ
ェットオンウェットによる２層塗装を行い、その後８０
℃程度の低温乾燥を行っており、図３に示すような塗装
構造となっている。このポリウレタン系の２層塗装は、
樹脂部品の耐熱性の問題から金属部材による車輌本体の
ような高温による焼付け塗装ができないため、塗膜の堅
牢性が劣り、酸性雨によるシミが発生しやすいなど、耐
候性が不十分で、また、その耐久性にも問題が多く洗車
時等に傷がつきやすく、特に色の濃い塗色系では傷が目
立ちやすい傾向にあり問題となっている。The coating of such a resin part is performed by a so-called wet-on-wet two-layer coating in which the base coat 2 is coated with a paint containing a polyurethane resin as a main component and the clear coat 1 is coated in an undried state. 80
It is dried at a low temperature of about ℃ and has a coating structure as shown in FIG. This two layer polyurethane coating is
Due to the problem of heat resistance of resin parts, baking cannot be performed at high temperatures with metal members such as the vehicle body, so the durability of the coating film is poor, and stains due to acid rain easily occur, and weather resistance is insufficient. However, there are many problems in its durability, and it is easy to get scratches when washing a car. Especially, in the case of a paint system having a dark color, the scratches tend to be conspicuous, which is a problem.
【０００４】[0004]
【発明が解決しようとする課題】したがって、本発明の
目的は、耐候性、耐久性に優れた塗料組成物およびそれ
を塗布してなる塗装物を提供することであり、特に自動
車に用いられている樹脂部品等、高温での焼付け塗装の
困難な被塗装物に用い、低温乾燥時にも十分な耐候性、
耐久性を有する塗料組成物およびそれ塗布してなる塗装
物を提供することである。Therefore, an object of the present invention is to provide a coating composition excellent in weather resistance and durability and a coated article obtained by applying the coating composition, which is particularly used for automobiles. It is used for coated objects that are difficult to bake at high temperatures, such as existing resin parts, and has sufficient weather resistance even at low temperatures.
It is intended to provide a coating composition having durability and a coated article obtained by applying the coating composition.
【０００５】[0005]
【課題を解決するための手段】上記諸目的は、単量体と
してアルコキシシラン２０〜５０重量％を含有させたア
クリル系重合体（Ａ）５０〜７０重量部、アルコキシシ
リル基および／またはシラノール基を有するシリコン化
合物（Ｂ）３０〜５０重量部、および硬化触媒（Ｃ）１
〜１０重量部よりなることを特徴とする塗料組成物によ
り達成される。[Means for Solving the Problems] The above objects are as follows: 50 to 70 parts by weight of an acrylic polymer (A) containing 20 to 50% by weight of alkoxysilane as a monomer, an alkoxysilyl group and / or a silanol group. 30 to 50 parts by weight of a silicon compound (B) having 1 and a curing catalyst (C) 1
It is achieved by a coating composition characterized by comprising 10 to 10 parts by weight.
【０００６】また上記諸目的は、金属粉末および／また
は着色顔料を含有する塗料が塗布された塗布面（ベース
コート）に、単量体としてアルコキシシラン２０〜５０
重量％を含有させたアクリル系重合体（Ａ）５０〜７０
重量部、アルコキシシリル基および／またはシラノール
基を有するシリコン化合物（Ｂ）３０〜５０重量部、お
よび硬化触媒（Ｃ）１〜１０重量部よりなる塗料組成物
を主成分として含有する塗料を塗布したことを特徴とす
る塗装物によっても達成される。Further, the above-mentioned objects are as follows. Alkoxysilanes 20 to 50 are used as monomers on a coating surface (base coat) coated with a coating material containing a metal powder and / or a coloring pigment.
Acrylic polymer (A) containing 50 to 70% by weight
A coating composition containing, as a main component, 30 parts by weight, 30 to 50 parts by weight of a silicon compound (B) having an alkoxysilyl group and / or a silanol group, and 1 to 10 parts by weight of a curing catalyst (C) was applied. It is also achieved by a coated article characterized by the above.
【０００７】さらに上記諸目的は、金属粉末および／ま
たは着色顔料を含有する塗料が塗布された塗布面（ベー
スコート）にトップコートクリヤ塗料が塗布されてなる
塗装物に対し、単量体としてアルコキシシラン２０〜５
０重量％を含有させたアクリル系重合体（Ａ）５０〜７
０重量部、アルコキシシリル基および／またはシラノー
ル基を有するシリコン化合物（Ｂ）３０〜５０重量部、
および硬化触媒（Ｃ）１〜１０重量部よりなる塗料組成
物を主成分として含有する塗料を塗布したことを特徴と
する塗装物によっても達成される。Further, the above-mentioned various objects are alkoxysilane as a monomer for a coated article obtained by applying a top coat clear coating to a coating surface (base coat) coated with a coating containing a metal powder and / or a coloring pigment. 20-5
Acrylic polymer (A) 50-7 containing 0% by weight
0 parts by weight, 30 to 50 parts by weight of a silicon compound (B) having an alkoxysilyl group and / or a silanol group,
And a coating material characterized by being coated with a coating material containing as a main component a coating composition comprising 1 to 10 parts by weight of a curing catalyst (C).
【０００８】[0008]
【作用】本発明によれば、まず、単量体としてアルコキ
シシランを含有させたアクリル系重合体（Ａ）により、
塗膜の耐擦傷性を向上させることができる。この単量体
としてアルコキシシランを含有させたアクリル系重合体
（Ａ）は、含有させたアルコキシシランにより、アクリ
ル系重合体の末端や側鎖に架橋反応を行うためのアルコ
キシシリル基が形成させ、塗膜の架橋密度を増加させる
ものである。アクリル系重合体を合成する際のアルコキ
シシランの含有量は、アクリル系重合体を製造するため
の全成分に対して、アルコキシシラン単量体として２０
〜５０重量％、好ましくは３０〜４０重量％である。ア
ルコキシシランの量が２０重量％未満の場合には塗膜の
架橋密度が低くなり、耐擦傷性が低下し、一方、５０重
量％を越えると塗膜の架橋密度が高くなり過ぎ、残留応
力により塗膜が割れ易くなるなどの不都合が生じ好まし
くない。According to the present invention, first, an acrylic polymer (A) containing an alkoxysilane as a monomer
The scratch resistance of the coating film can be improved. The acrylic polymer (A) containing an alkoxysilane as the monomer forms an alkoxysilyl group for carrying out a cross-linking reaction at the terminal or side chain of the acrylic polymer by the contained alkoxysilane, It increases the crosslink density of the coating film. The content of the alkoxysilane in synthesizing the acrylic polymer is 20 as an alkoxysilane monomer based on all components for producing the acrylic polymer.
˜50% by weight, preferably 30-40% by weight. When the amount of alkoxysilane is less than 20% by weight, the crosslink density of the coating film becomes low and the scratch resistance decreases, while when it exceeds 50% by weight, the crosslink density of the coating film becomes too high and the residual stress causes It is not preferable because the coating film is easily cracked.
【０００９】また、このアクリル系重合体を製造するた
めの他の単量体成分としては、通常のアクリル系塗料等
に用いられているものであれば特に限定されるものでは
なく、所望される塗料の性能や被塗装物の材質等により
適宜選択されるもので、例えばスチレン、（メタ）アク
リル酸、（メタ）アクリル酸メチル、（メタ）アクリル
酸エチル、（メタ）アクリル酸プロピル、（メタ）アク
リル酸ブチル、（メタ）アクリル酸ヘキシル、（メタ）
アクリル酸エチルヘキシル、（メタ）アクリル酸ヒドロ
キシエチル、（メタ）アクリル酸ヒドロキシプロピル、
（メタ）アクリルアミド、（メタ）アクリル酸グリシジ
ルなどがげられる。The other monomer components for producing the acrylic polymer are not particularly limited as long as they are those used in ordinary acrylic paints, and are desired. It is appropriately selected depending on the performance of the coating material, the material of the object to be coated, and the like. For example, styrene, (meth) acrylic acid, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, (meth) ) Butyl acrylate, hexyl (meth) acrylate, (meth)
Ethylhexyl acrylate, Hydroxyethyl (meth) acrylate, Hydroxypropyl (meth) acrylate,
Examples thereof include (meth) acrylamide and glycidyl (meth) acrylate.
【００１０】そして、このアルコキシシランを含有させ
たアクリル系重合体（Ａ）は、塗料組成物中に５０〜７
０重量部用いられる。ここで、この量が５０重量部未満
の場合には架橋密度が低くなり耐擦傷性で劣る傾向があ
り、一方、７０重量部を越えて用いた場合には塗膜の柔
軟性が低下して割れ易くなり好ましくない。The acrylic polymer (A) containing the alkoxysilane is added to the coating composition in an amount of 50 to 7
0 parts by weight are used. If the amount is less than 50 parts by weight, the crosslink density tends to be low and the scratch resistance tends to be poor. On the other hand, if the amount is more than 70 parts by weight, the flexibility of the coating film is deteriorated. It is not preferable because it easily breaks.
【００１１】本発明におけるアルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）と
しては、アルコキシシラン化合物、アルコキシシラン化
合物の部分加水分解縮合物または反応物およびこれらの
混合物であり、塗膜の密着性向上に寄与するものであ
る。組成物中の配合量は３０〜５０重量部で、３０重量
部未満の場合は塗膜の架橋密度が低くなり耐擦傷性で劣
る傾向があり、一方、５０重量部を越えて用いた場合に
は塗膜の柔軟性が大きくなり過ぎ、耐候性が劣る傾向と
なり好ましくない。The silicon compound (B) having an alkoxysilyl group and / or silanol group in the present invention is an alkoxysilane compound, a partially hydrolyzed condensate or reaction product of an alkoxysilane compound, or a mixture thereof, which is It contributes to the improvement of adhesion. The compounding amount in the composition is 30 to 50 parts by weight, and when it is less than 30 parts by weight, the cross-linking density of the coating film tends to be low and scratch resistance tends to be poor, while when it is used in excess of 50 parts by weight. Is not preferable because the flexibility of the coating film becomes too large and the weather resistance tends to be poor.
【００１２】本発明における硬化触媒（Ｃ）としては、
有機スズ化合物、酸性リン酸エステル、酸性リン酸エス
テルとアミンとの混合物または反応物が好ましく、組成
物中の配合量は１〜１０重量部で、１重量部未満の場合
は触媒としての働きをせず、塗膜の硬化反応が進まな
い。一方、１０重量部を越えて用いた場合には逆に急激
に反応が進むため、残留応力が高くなり、割れ易くなる
と共に仕上がり外観が劣る傾向にあり好ましくない。As the curing catalyst (C) in the present invention,
Organic tin compounds, acidic phosphoric acid esters, and mixtures or reaction products of acidic phosphoric acid esters and amines are preferable, and the compounding amount in the composition is from 1 to 10 parts by weight, and when it is less than 1 part by weight, it functions as a catalyst. If not, the curing reaction of the coating film does not proceed. On the other hand, when it is used in an amount of more than 10 parts by weight, the reaction rapidly progresses on the contrary, resulting in high residual stress, easy cracking and poor finished appearance.
【００１３】次に、本発明の塗装物は、被塗装物に、ま
ず、ベースコート層として、金属粉末および／または着
色顔料を含有する塗料を塗布し、この塗布面（ベースコ
ート）もしくは、この塗布面（ベースコート）にトップ
コートクリヤ塗料が塗布されてなる塗装物に対し、本発
明の単量体としてアルコキシシラン２０〜５０重量％を
含有させたアクリル系重合体（Ａ）５０〜７０重量部、
アルコキシシリル基および／またはシラノール基を有す
るシリコン化合物（Ｂ）３０〜５０重量部、および硬化
触媒（Ｃ）１〜１０重量部よりなる塗料組成物を主成分
として含有する塗料を塗布したことを特徴とするもので
ある。ここで、本発明の塗装物に用いられる被塗装物と
しては、ポリエチレン樹脂、ポリプロピレン樹脂、アク
リル樹脂、エポキシ樹脂、ポリアミド樹脂、ポリウレタ
ン樹脂等の各種樹脂材料、圧延鋼板や冷延鋼板、ステン
レス鋼板、アルミニウム等の金属材料等を用いることが
でき、中でも、各種樹脂材料が好適である。Next, in the coated article of the present invention, a coating material containing a metal powder and / or a coloring pigment is first applied as a base coat layer to the article to be coated, and this coated surface (base coat) or this coated surface is coated. 50 to 70 parts by weight of an acrylic polymer (A) containing 20 to 50% by weight of alkoxysilane as a monomer of the present invention with respect to a coated object obtained by applying a topcoat clear coating composition to a (base coat),
A coating material containing as a main component a coating composition comprising 30 to 50 parts by weight of a silicon compound (B) having an alkoxysilyl group and / or a silanol group, and 1 to 10 parts by weight of a curing catalyst (C) is applied. It is what Here, as the coated object used in the coated article of the present invention, various resin materials such as polyethylene resin, polypropylene resin, acrylic resin, epoxy resin, polyamide resin, polyurethane resin, rolled steel sheet, cold rolled steel sheet, stainless steel sheet, A metal material such as aluminum can be used, and among them, various resin materials are preferable.
【００１４】[0014]
参考例１ アルコキシシリル基含有アクリル系重合体（１）の調
整。攪拌機、温度計、還流冷却器、窒素ガス導入管およ
び滴下ロートを備えた反応器に、キシレン５０重量部を
仕込み、窒素ガスを導入しつつ、５０℃まで昇温させ、
スチレン１０重量部、ｎ−ブチルアクリレート３０重量
部、メチルメタクリレート４０重量部、γ−メタクルロ
キシプロピルトリメトキシシラン２０重量部の混合物と
２，２´−アゾビスイソブチロニトリル１重量部とを滴
下ロートにより、５時間かけて等速滴下した。Reference Example 1 Preparation of alkoxysilyl group-containing acrylic polymer (1). To a reactor equipped with a stirrer, a thermometer, a reflux condenser, a nitrogen gas introducing pipe and a dropping funnel, 50 parts by weight of xylene was charged, and while introducing nitrogen gas, the temperature was raised to 50 ° C.
A mixture of 10 parts by weight of styrene, 30 parts by weight of n-butyl acrylate, 40 parts by weight of methyl methacrylate, 20 parts by weight of γ-methacryloxypropyltrimethoxysilane and 1 part by weight of 2,2′-azobisisobutyronitrile. A dropping funnel was used to perform constant velocity dropping over 5 hours.
【００１５】混合物の滴下終了後、２時間還流した後、
室温まで自然冷却した。この樹脂溶液に、キシレンを加
えて固形分６０重量％に調整して、アルコキシシリル基
含有アクリル系重合体（１）溶液を調整した。After the completion of dropping the mixture, the mixture was refluxed for 2 hours,
It was naturally cooled to room temperature. Xylene was added to this resin solution to adjust the solid content to 60% by weight to prepare an alkoxysilyl group-containing acrylic polymer (1) solution.
【００１６】参考例２ アルコキシシリル基含有アクリル系重合体（２）の調
整。参考例１の混合物をスチレン１０重量部、ｎ−ブチ
ルアクリレート２０重量部、メチルメタクリレート３０
重量部、γ−メタクリロキシプロピルトリメトキシシラ
ン４０重量部にした以外は、参考例１と同様にしてアル
コキシシリル基含有アクリル系重合体（２）溶液を調整
した。Reference Example 2 Preparation of alkoxysilyl group-containing acrylic polymer (2). The mixture of Reference Example 1 was mixed with 10 parts by weight of styrene, 20 parts by weight of n-butyl acrylate, and 30 parts of methyl methacrylate.
The alkoxysilyl group-containing acrylic polymer (2) solution was prepared in the same manner as in Reference Example 1, except that 40 parts by weight of γ-methacryloxypropyltrimethoxysilane was used.
【００１７】参考例３ アルコキシシリル基含有アクリル系重合体（３）の調
整。参考例１の混合物をスチレン１０重量部、ｎ−ブチ
ルアクリレート２０重量部、メチルメタクリレート２０
重量部、γ−メタクリロキシプロピルトリメトキシシラ
ン５０重量部にした以外は、参考例１と同様にしてアル
コキシシリル基含有アクリル系重合体（３）溶液を調整
した。Reference Example 3 Preparation of an alkoxysilyl group-containing acrylic polymer (3). The mixture of Reference Example 1 was mixed with 10 parts by weight of styrene, 20 parts by weight of n-butyl acrylate, and 20 parts of methyl methacrylate.
The alkoxysilyl group-containing acrylic polymer (3) solution was prepared in the same manner as in Reference Example 1, except that 50 parts by weight of γ-methacryloxypropyltrimethoxysilane was used.
【００１８】参考例４ アルコキシシリル基含有アクリル系重合体（４）の調
整。参考例１の混合物をスチレン１０重量部、ｎ−ブチ
ルアクリレート３５重量部、メチルメタクリレート４０
重量部、γ−メタクリロキシプロピルトリメトキシシラ
ン１５重量部にした以外は、参考例１と同様にしてアル
コキシシリル基含有アクリル系重合体（４）溶液を調整
した。Reference Example 4 Preparation of an alkoxysilyl group-containing acrylic polymer (4). 10 parts by weight of the mixture of Reference Example 1, 35 parts by weight of n-butyl acrylate, 40 parts of methyl methacrylate
An alkoxysilyl group-containing acrylic polymer (4) solution was prepared in the same manner as in Reference Example 1, except that the amount of γ-methacryloxypropyltrimethoxysilane was changed to 15 parts by weight.
【００１９】実施例１ 参考例１で調整したアルコキシシリル基含有アクリル系
重合体（１）（Ａ）溶液８３重量部、アルコキシシリル
基および／またはシラノール基を有するシリコン化合物
（Ｂ：ＫＲ２１３［信越化学工業社製］）５０重量部、
硬化触媒（Ｃ：ＤＲ８Ｒ［大八化学工業所社製］）１重
量部、さらに紫外線吸収剤（チヌビン９００［チバガイ
ギー社製］）および光安定剤（チヌビン１４４［チバガ
イギー社製］）を樹脂固形分に対し０．１重量％添加
し、スプレー可能粘度になるようにキシレンにて希釈し
て、トップコートクリヤ塗料を調整した。尚、上記アル
コキシシリル基含有アクリル系重合体（１）溶液を８３
重量部としているが、この量は参考例１で調整した該重
合体（１）溶液としての量であり、溶液中の該重合体
（１）の量は５０重量部となる。Example 1 83 parts by weight of the alkoxysilyl group-containing acrylic polymer (1) (A) solution prepared in Reference Example 1, a silicon compound having an alkoxysilyl group and / or a silanol group (B: KR213 [Shin-Etsu Chemical] Manufactured by Kogyo Co., Ltd.]) 50 parts by weight,
1 part by weight of a curing catalyst (C: DR8R [manufactured by Daihachi Chemical Industry Co., Ltd.]), an ultraviolet absorber (Tinuvin 900 [manufactured by Ciba Geigy]), and a light stabilizer (Tinuvin 144 [manufactured by Ciba Geigy]) as resin solids. 0.1 wt% was added to the above, and diluted with xylene so as to have a sprayable viscosity to prepare a top coat clear paint. In addition, the above alkoxysilyl group-containing acrylic polymer (1) solution was added to 83
Although the amount is parts by weight, this amount is the amount of the polymer (1) solution prepared in Reference Example 1, and the amount of the polymer (1) in the solution is 50 parts by weight.
【００２０】イソプロピルアルコール（ＩＰＡ）脱脂後
のポリフェニレンオキサイド（ＰＰＯ）／ポリアミド
（ＰＡ）樹脂素材（ＧＴＸ６００［ＧＥ社製］）を用い
て、この上にシルバーメタリックベース塗料として、２
液ウレタン塗料（ソフレックス５０００［関西ペイント
社製］）を塗布した後、ウェットオンウェット方式で該
トップコートクリヤ塗料を塗布後、８０℃で３０分焼付
けて、大きさ７０ｍｍ×１５０ｍｍの試験片を制作し
た。この際、ベースコートおよびトップコートクリヤの
乾燥膜厚は各々約１５μｍおよび約３０μｍであった。
また、塗装構造の概略を図１に示す。図１中、参照番号
１はトップコートクリヤ層、参照番号２はベースコート
層および参照番号３は樹脂素材である。Polyphenylene oxide (PPO) / polyamide (PA) resin material (GTX600 [manufactured by GE]) after degreasing with isopropyl alcohol (IPA) was used, and a silver metallic base paint was added on top of this.
After applying a liquid urethane paint (Soflex 5000 [made by Kansai Paint Co., Ltd.]), after applying the top coat clear paint by the wet-on-wet method, bake at 80 ° C for 30 minutes to obtain a test piece of 70 mm x 150 mm in size. I made it. At this time, the dry film thicknesses of the base coat and the top coat clear were respectively about 15 μm and about 30 μm.
The outline of the coating structure is shown in FIG. In FIG. 1, reference numeral 1 is a top coat clear layer, reference numeral 2 is a base coat layer, and reference numeral 3 is a resin material.
【００２１】実施例２ 実施例１のアルコキシシリル基含有アクリル系重合体
（１）溶液を参考例２で調整したアルコキシシリル基含
有アクリル系重合体（２）溶液に替えた以外は実施例１
と同様に試験片を制作した。Example 2 Example 1 except that the alkoxysilyl group-containing acrylic polymer (1) solution of Example 1 was replaced with the alkoxysilyl group-containing acrylic polymer (2) solution prepared in Reference Example 2.
A test piece was produced in the same manner as in.
【００２２】実施例３ 実施例１のアルコキシシリル基含有アクリル系重合体
（１）溶液を参考例３で調整したアルコキシシリル基含
有アクリル系重合体（３）溶液に替えた以外は実施例１
と同様に試験片を制作した。Example 3 Example 1 except that the alkoxysilyl group-containing acrylic polymer (1) solution of Example 1 was replaced with the alkoxysilyl group-containing acrylic polymer (3) solution prepared in Reference Example 3.
A test piece was produced in the same manner as in.
【００２３】実施例４ 実施例１のアルコキシシリル基含有アクリル系重合体
（１）溶液を１１７重量部、アルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）３
０重量部に替えた以外は実施例１と同様に試験片を制作
した。尚、上記アルコキシシリル基含有アクリル系重合
体（１）溶液を１１７重量部としているが、この量は参
考例１で調整した該重合体（１）溶液としての量であ
り、溶液中の該重合体（１）の量は７０重量部となる。Example 4 117 parts by weight of the alkoxysilyl group-containing acrylic polymer (1) solution of Example 1, a silicon compound (B) 3 having an alkoxysilyl group and / or a silanol group
A test piece was produced in the same manner as in Example 1 except that the amount was changed to 0 part by weight. The amount of the above-mentioned alkoxysilyl group-containing acrylic polymer (1) solution is 117 parts by weight, but this amount is the amount of the polymer (1) solution prepared in Reference Example 1, The combined amount (1) is 70 parts by weight.
【００２４】実施例５ 実施例２のアルコキシシリル基含有アクリル系重合体
（２）溶液を１１７重量部、アルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）３
０重量部に替えた以外は実施例２と同様に試験片を制作
した。Example 5 117 parts by weight of the alkoxysilyl group-containing acrylic polymer (2) solution of Example 2 was added, and a silicon compound (B) 3 having an alkoxysilyl group and / or a silanol group was used.
A test piece was produced in the same manner as in Example 2 except that the amount was changed to 0 part by weight.
【００２５】実施例５ 実施例３のアルコキシシリル基含有アクリル系重合体
（３）溶液を１１７重量部、アルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）３
０重量部に替えた以外は実施例３と同様に試験片を制作
した。Example 5 117 parts by weight of the alkoxysilyl group-containing acrylic polymer (3) solution of Example 3 was added, and a silicon compound (B) 3 having an alkoxysilyl group and / or a silanol group was used.
A test piece was produced in the same manner as in Example 3 except that the amount was changed to 0 part by weight.
【００２６】実施例７ 実施例１のアルコキシシリル基含有アクリル系重合体
（１）溶液を１００重量部、アルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）４
０重量部に替えた以外は実施例１と同様に試験片を制作
した。尚、上記アルコキシシリル基含有アクリル系重合
体（１）溶液を１００重量部としているが、この量は参
考例１で調整した該重合体（１）溶液としての量であ
り、溶液中の該重合体（１）の量は６０重量部となる。Example 7 100 parts by weight of the alkoxysilyl group-containing acrylic polymer (1) solution of Example 1, a silicon compound (B) 4 having an alkoxysilyl group and / or a silanol group
A test piece was produced in the same manner as in Example 1 except that the amount was changed to 0 part by weight. The amount of the above-mentioned alkoxysilyl group-containing acrylic polymer (1) solution is 100 parts by weight, but this amount is the amount of the polymer (1) solution prepared in Reference Example 1 and The amount of combined (1) is 60 parts by weight.
【００２７】実施例８ 実施例２のアルコキシシリル基含有アクリル系重合体
（２）溶液を１００重量部、アルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）４
０重量部に替えた以外は実施例２と同様に試験片を制作
した。Example 8 100 parts by weight of the alkoxysilyl group-containing acrylic polymer (2) solution of Example 2, a silicon compound (B) 4 having an alkoxysilyl group and / or a silanol group
A test piece was produced in the same manner as in Example 2 except that the amount was changed to 0 part by weight.
【００２８】実施例９ 実施例３のアルコキシシリル基含有アクリル系重合体
（３）溶液を１００重量部、アルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）４
０重量部に替えた以外は実施例３と同様に試験片を制作
した。Example 9 100 parts by weight of the alkoxysilyl group-containing acrylic polymer (3) solution of Example 3, a silicon compound (B) 4 having an alkoxysilyl group and / or a silanol group
A test piece was produced in the same manner as in Example 3 except that the amount was changed to 0 part by weight.
【００２９】実施例１０ 実施例１の硬化触媒（Ｃ）を１０重量部に替えた以外は
実施例１と同様に試験片を制作した。Example 10 A test piece was produced in the same manner as in Example 1 except that the curing catalyst (C) of Example 1 was changed to 10 parts by weight.
【００３０】実施例１１ 実施例１において、シルバーメタリックベース塗料とし
て、２液ウレタン塗料（ソフレックス５０００［関西ペ
イント社製］）を塗布した後、ウェットオンウェット方
式でトップコートクリヤとして２液ウレタン塗料（ソフ
レックス５０００［関西ペイント社製］）を塗布後、８
０℃で３０分焼付けた。さらに、オーバーコートクリヤ
方式にて、実施例１で調整したトップコートクリヤ塗料
を塗布後、８０℃で３０分焼付けた以外は実施例１と同
様に試験片を制作した。この際、ベースコート、トップ
コートクリヤおよびオーバーコートクリヤの乾燥膜厚は
各々約１５μｍ、約３０μｍおよび約３０μｍであっ
た。また、塗装構造の概略を図２に示す。図２中、参照
番号１はトップコートクリヤ層、参照番号２はベースコ
ート層、参照番号３は樹脂素材および参照番号４はオー
バーコートクリヤ層である。Example 11 In Example 1, after applying a two-component urethane paint (Soflex 5000 [Kansai Paint Co., Ltd.]) as a silver metallic base paint, a two-component urethane paint as a top coat clear by a wet-on-wet system ( 8 after applying Soflex 5000 [Kansai Paint Co., Ltd.])
It was baked at 0 ° C. for 30 minutes. Further, a test piece was produced in the same manner as in Example 1 except that the top coat clear paint prepared in Example 1 was applied by the overcoat clear method and then baked at 80 ° C. for 30 minutes. At this time, the dry film thicknesses of the base coat, the top coat clear and the overcoat clear were respectively about 15 μm, about 30 μm and about 30 μm. Moreover, the outline of the coating structure is shown in FIG. In FIG. 2, reference numeral 1 is a top coat clear layer, reference numeral 2 is a base coat layer, reference numeral 3 is a resin material, and reference numeral 4 is an overcoat clear layer.
【００３１】比較例１ 実施例１のアルコキシシリル基含有アクリル系重合体
（１）溶液を参考例４で調整したアルコキシシリル基含
有アクリル系重合体（４）溶液に替えた以外は実施例１
と同様に試験片を制作した。Comparative Example 1 Example 1 except that the alkoxysilyl group-containing acrylic polymer (1) solution of Example 1 was replaced with the alkoxysilyl group-containing acrylic polymer (4) solution prepared in Reference Example 4.
A test piece was produced in the same manner as in.
【００３２】比較例２ 比較例１のアルコキシシリル基含有アクリル系重合体
（４）溶液を１１７重量部、アルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）３
０重量部に替えた以外は比較例１と同様に試験片を制作
した。Comparative Example 2 117 parts by weight of the alkoxysilyl group-containing acrylic polymer (4) solution of Comparative Example 1, a silicon compound (B) 3 having an alkoxysilyl group and / or a silanol group.
A test piece was produced in the same manner as in Comparative Example 1 except that the amount was changed to 0 part by weight.
【００３３】比較例３ 比較例１のアルコキシシリル基含有アクリル系重合体
（４）溶液を１００重量部、アルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）４
０重量部に替えた以外は比較例１と同様に試験片を制作
した。Comparative Example 3 100 parts by weight of the alkoxysilyl group-containing acrylic polymer (4) solution of Comparative Example 1, a silicon compound (B) 4 having an alkoxysilyl group and / or a silanol group
A test piece was produced in the same manner as in Comparative Example 1 except that the amount was changed to 0 part by weight.
【００３４】比較例４ 実施例１のアルコキシシリル基含有アクリル系重合体
（１）溶液を６７重量部、アルコキシシリル基および／
またはシラノール基を有するシリコン化合物（Ｂ）６０
重量部に替えた以外は実施例１と同様に試験片を制作し
た。尚、上記アルコキシシリル基含有アクリル系重合体
（１）溶液を６７重量部としているが、この量は参考例
１で調整した該重合体（１）溶液としての量であり、溶
液中の該重合体（１）の量は４０重量部となる。Comparative Example 4 67 parts by weight of the alkoxysilyl group-containing acrylic polymer (1) solution of Example 1 was used.
Or a silicon compound (B) 60 having a silanol group
A test piece was produced in the same manner as in Example 1 except that the weight part was changed. The amount of the above-mentioned alkoxysilyl group-containing acrylic polymer (1) solution is 67 parts by weight. This amount is the amount of the polymer (1) solution prepared in Reference Example 1, The amount of combined (1) is 40 parts by weight.
【００３５】比較例５ 実施例１のアルコキシシリル基含有アクリル系重合体
（１）溶液を１３３重量部、アルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）２
０重量部に替えた以外は実施例１と同様に試験片を制作
した。尚、上記アルコキシシリル基含有アクリル系重合
体（１）溶液を１３３重量部としているが、この量は参
考例１で調整した該重合体（１）溶液としての量であ
り、溶液中の該重合体（１）の量は８０重量部となる。Comparative Example 5 133 parts by weight of the alkoxysilyl group-containing acrylic polymer (1) solution of Example 1 was used, and a silicon compound (B) 2 having an alkoxysilyl group and / or a silanol group was used.
A test piece was produced in the same manner as in Example 1 except that the amount was changed to 0 part by weight. The amount of the alkoxysilyl group-containing acrylic polymer (1) solution was 133 parts by weight, but this amount was the amount of the polymer (1) solution prepared in Reference Example 1, and The amount of combined (1) is 80 parts by weight.
【００３６】比較例６ 実施例１の硬化触媒（Ｃ）を０．５重量部に替えた以外
は実施例１と同様に試験片を制作した。Comparative Example 6 A test piece was produced in the same manner as in Example 1 except that the curing catalyst (C) of Example 1 was changed to 0.5 part by weight.
【００３７】比較例７ 実施例１のアルコキシシリル基含有アクリル重合体
（１）溶液を１３３重量部に替えた以外は実施例１と同
様に試験片を制作した。Comparative Example 7 A test piece was produced in the same manner as in Example 1 except that the alkoxysilyl group-containing acrylic polymer (1) solution of Example 1 was changed to 133 parts by weight.
【００３８】比較例８ 実施例１のアルコキシシリル基および／またはシラノー
ル基を有するシリコン化合物（Ｂ）を６０重量部に替え
た以外は実施例１と同様に試験片を制作した。Comparative Example 8 A test piece was produced in the same manner as in Example 1 except that the silicon compound (B) having an alkoxysilyl group and / or a silanol group of Example 1 was replaced with 60 parts by weight.
【００３９】試験例 上述の実施例１〜１１および比較例１〜８により制作し
た試験片を用いて、以下の試験を行った。試験結果を表
１に示す。Test Examples The following tests were carried out using the test pieces produced in Examples 1 to 11 and Comparative Examples 1 to 8 described above. The test results are shown in Table 1.
【００４０】１．塗膜外観 試験方法はＪＩＳ Ｋ−５４００ ６．１により行っ
た。 目視評価；○：良好、△：普通、×：不良。1. Appearance of coating film The test method was JIS K-5400 6.1. Visual evaluation; ◯: good, Δ: normal, ×: poor.
【００４１】２．光沢 試験方法はＪＩＳ Ｋ−５４００ ６．７により行っ
た。 ３．促進耐候性 試験方法はＪＩＳ Ｋ−５４００ ６．１７により行っ
た。 目視評価（５００時間）；○：良好、△：普通、×：不
良。2. Gloss test method was performed according to JIS K-5400 6.7. 3. The accelerated weather resistance test method was performed according to JIS K-5400 6.17. Visual evaluation (500 hours); ◯: good, Δ: normal, x: poor.
【００４２】４．耐沸騰水性 試験方法はＪＩＳ Ｋ−５４００ ７．３により行っ
た。 目視評価；○：良好、△：普通、×：不良。4. The boiling water resistance test method was performed according to JIS K-5400 7.3. Visual evaluation; ◯: good, Δ: normal, ×: poor.
【００４３】５．耐酸性 試験方法はＪＩＳ Ｋ−５４００ ７．５により行っ
た。 目視評価；○：良好、△：普通、×：不良。5. The acid resistance test method was performed according to JIS K-5400 7.5. Visual evaluation; ◯: good, Δ: normal, ×: poor.
【００４４】６．耐擦傷性 試験方法：自動車に試験片を両面テープにて貼り付け、
市販の自動洗車機による洗車を連続５回行い、水洗後、
塗膜の表面状態を目視にて評価した。 目視評価；○：良好、△：普通、×：不良。6. Scratch resistance test method: Stick the test piece on the car with double-sided tape,
Car wash five times continuously with a commercial automatic car wash machine, and after washing with water,
The surface condition of the coating film was visually evaluated. Visual evaluation; ◯: good, Δ: normal, ×: poor.
【００４５】[0045]
【表１】 [Table 1]
【００４６】表１の結果より、本発明の塗料組成物を用
いた塗膜が形成された試験片が優れた塗膜外観、光沢、
促進耐候性、耐沸騰水性、耐酸性および耐擦傷性を示す
ことが分かる。From the results shown in Table 1, the test piece on which a coating film was formed using the coating composition of the present invention had an excellent coating film appearance, gloss, and
It can be seen that the film shows accelerated weather resistance, boiling water resistance, acid resistance and scratch resistance.
【００４７】[0047]
【発明の効果】上述のように、本発明の塗料組成物およ
びそれを塗布してなる塗装物は、樹脂材料等、高温での
焼付け塗装の困難な被塗装物に用い、低温乾燥時におい
ても十分な耐候性、耐久性を得ることができる。As described above, the coating composition of the present invention and the coated article obtained by applying the coating composition are used for an object to be baked and coated at a high temperature, such as a resin material, and even when dried at a low temperature. Sufficient weather resistance and durability can be obtained.
【図１】 実施例１による試験片の塗装構造の概略を示
す図面である。FIG. 1 is a drawing showing an outline of a coating structure of a test piece according to Example 1.
【図２】 実施例１１による試験片の塗装構造の概略を
示す図面である。2 is a drawing showing an outline of a coating structure of a test piece according to Example 11. FIG.
【図３】 従来の塗装構造の概略を示す図面である。FIG. 3 is a diagram showing an outline of a conventional coating structure.
１…トップコートクリヤ層、２…ベースコート層、３…
樹脂素材、４…オーバーコートクリヤ層。1 ... Top coat clear layer, 2 ... Base coat layer, 3 ...
Resin material, 4 ... Overcoat clear layer.
Claims (3)
０重量％を含有させたアクリル系重合体（Ａ）５０〜７
０重量部、アルコキシシリル基および／またはシラノー
ル基を有するシリコン化合物（Ｂ）３０〜５０重量部、
および硬化触媒（Ｃ）１〜１０重量部よりなることを特
徴とする塗料組成物。1. Alkoxysilane 20 to 5 as a monomer
Acrylic polymer (A) 50-7 containing 0% by weight
0 parts by weight, 30 to 50 parts by weight of a silicon compound (B) having an alkoxysilyl group and / or a silanol group,
And a coating composition comprising 1 to 10 parts by weight of a curing catalyst (C).
する塗料が塗布された塗布面に、単量体としてアルコキ
シシラン２０〜５０重量％を含有させたアクリル系重合
体（Ａ）５０〜７０重量部、アルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）３
０〜５０重量部、および硬化触媒（Ｃ）１〜１０重量部
よりなる塗料組成物を主成分として含有する塗料を塗布
したことを特徴とする塗装物。2. Acrylic polymer (A) 50-70% by weight containing 20-50% by weight of alkoxysilane as a monomer on the coating surface coated with a coating containing a metal powder and / or a coloring pigment. Compound (B) 3 having a moiety, an alkoxysilyl group and / or a silanol group
A coated article, which is obtained by applying a coating material containing as a main component a coating composition of 0 to 50 parts by weight and 1 to 10 parts by weight of a curing catalyst (C).
する塗料が塗布された塗布面にトップコートクリヤ塗料
が塗布されてなる塗装物に対し、単量体としてアルコキ
シシラン２０〜５０重量％を含有させたアクリル系重合
体（Ａ）５０〜７０重量部、アルコキシシリル基および
／またはシラノール基を有するシリコン化合物（Ｂ）３
０〜５０重量部、および硬化触媒（Ｃ）１〜１０重量部
よりなる塗料組成物を主成分として含有する塗料を塗布
したことを特徴とする塗装物。3. An alkoxysilane as a monomer is contained in an amount of 20 to 50% by weight with respect to a coated article obtained by applying a topcoat clear coating on a surface coated with a coating containing a metal powder and / or a coloring pigment. 50 to 70 parts by weight of the obtained acrylic polymer (A), a silicon compound (B) 3 having an alkoxysilyl group and / or a silanol group
A coated article, which is obtained by applying a coating material containing as a main component a coating composition of 0 to 50 parts by weight and 1 to 10 parts by weight of a curing catalyst (C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4264422A JP2940319B2 (en) | 1992-10-02 | 1992-10-02 | Coating composition and coated product obtained by applying the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4264422A JP2940319B2 (en) | 1992-10-02 | 1992-10-02 | Coating composition and coated product obtained by applying the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06116530A true JPH06116530A (en) | 1994-04-26 |
| JP2940319B2 JP2940319B2 (en) | 1999-08-25 |
Family
ID=17402963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4264422A Expired - Fee Related JP2940319B2 (en) | 1992-10-02 | 1992-10-02 | Coating composition and coated product obtained by applying the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2940319B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996035758A1 (en) * | 1995-05-11 | 1996-11-14 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Curable composition for top coating and article coated therewith |
| JP2004501263A (en) * | 2000-06-23 | 2004-01-15 | インターナショナル コーティングズ リミテッド | Coating composition that cures at ambient temperature |
| US7445848B2 (en) | 2000-06-23 | 2008-11-04 | Akzo Nobel Coatings Internationals B.V. | Ambient temperature curing coating composition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6451468A (en) * | 1987-08-21 | 1989-02-27 | Kanegafuchi Chemical Ind | Cold-setting composition |
| JPH03197548A (en) * | 1989-12-26 | 1991-08-28 | Kanegafuchi Chem Ind Co Ltd | Curable coating composition |
-
1992
- 1992-10-02 JP JP4264422A patent/JP2940319B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6451468A (en) * | 1987-08-21 | 1989-02-27 | Kanegafuchi Chemical Ind | Cold-setting composition |
| JPH03197548A (en) * | 1989-12-26 | 1991-08-28 | Kanegafuchi Chem Ind Co Ltd | Curable coating composition |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996035758A1 (en) * | 1995-05-11 | 1996-11-14 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Curable composition for top coating and article coated therewith |
| US5891958A (en) * | 1995-05-11 | 1999-04-06 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Curable composition suitable as top coat and coated material using the same |
| JP2004501263A (en) * | 2000-06-23 | 2004-01-15 | インターナショナル コーティングズ リミテッド | Coating composition that cures at ambient temperature |
| US7445848B2 (en) | 2000-06-23 | 2008-11-04 | Akzo Nobel Coatings Internationals B.V. | Ambient temperature curing coating composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2940319B2 (en) | 1999-08-25 |
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