JPH073202A - Curable resin composition for coating material - Google Patents
Curable resin composition for coating materialInfo
- Publication number
- JPH073202A JPH073202A JP17230193A JP17230193A JPH073202A JP H073202 A JPH073202 A JP H073202A JP 17230193 A JP17230193 A JP 17230193A JP 17230193 A JP17230193 A JP 17230193A JP H073202 A JPH073202 A JP H073202A
- Authority
- JP
- Japan
- Prior art keywords
- resin composition
- curable resin
- functional group
- curable
- coating material
- 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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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、新規な塗料用硬化性樹
脂組成物に関するものである。FIELD OF THE INVENTION The present invention relates to a novel curable resin composition for paints.
【０００２】[0002]
【従来の技術】含フッ素重合体を汎用溶剤に可溶にする
ため、フッ素樹脂の結晶性を低下させた種々の共重合体
が開示されている。それらを塗料用に用いた場合、耐候
性・耐薬品性・光沢に優れた塗膜が得られ、かつ基材と
の密着性にも優れた塗膜が得られることが知られてい
る。近年、フッ素系溶剤型塗料の用途の拡大にともな
い、ゴム弾性を有する塗料から表面硬度の高い塗料まで
幅広い要求が高まりつつある。しかるに、従来のフッ素
樹脂溶液型塗料では形成された塗膜の表面硬度が必ずし
も十分でなく、耐汚染性に対しても改善が求められてい
る。2. Description of the Related Art Various copolymers have been disclosed in which the crystallinity of a fluororesin is lowered in order to make the fluoropolymer soluble in a general-purpose solvent. It is known that when they are used for paints, a coating film having excellent weather resistance, chemical resistance, and gloss can be obtained, and also a coating film having excellent adhesion to a substrate can be obtained. In recent years, along with the expansion of applications of fluorine-based solvent-based paints, a wide range of demands from paints having rubber elasticity to paints having high surface hardness are increasing. However, the surface hardness of the coating film formed by the conventional fluororesin solution type coating is not always sufficient, and improvement in stain resistance is also required.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、従来技術が
有していた前述の問題点を解決し、表面硬度が高く、耐
汚染性に優れ、しかも高耐候性を兼ね備えた塗膜を与え
られる硬化性樹脂組成物を提供しようとするものであ
る。The present invention solves the above-mentioned problems of the prior art and provides a coating film having high surface hardness, excellent stain resistance and high weather resistance. The present invention aims to provide a curable resin composition.
【０００４】[0004]
【課題を解決するための手段】本発明は前述の問題点を
解決すべくなされたものであり、ａ）フルオロオレフィ
ン、ｂ）第３級炭素が酸素原子に直結したビニルエーテ
ル及びｃ）硬化性官能基含有単量体を構成成分として含
有する含フッ素共重合体とｄ）硬化剤又は硬化触媒を含
んでなることを特徴とする塗料用硬化性樹脂組成物を提
供するものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and includes a) a fluoroolefin, b) a vinyl ether having a tertiary carbon directly bonded to an oxygen atom, and c) a curable functional group. A curable resin composition for coatings, which comprises a fluorine-containing copolymer containing a group-containing monomer as a constituent and d) a curing agent or a curing catalyst.
【０００５】本発明の含フッ素共重合体において、ａ）
フルオロオレフィンとしてはテトラフルオロエチレン、
クロロトリフルオロエチレン、フッ化ビニリデン、トリ
フルオロエチレン、ヘキサフルオロプロピレン、ＣＦ2
＝ＣＦＯＣＦ3 、ＣＦ2 ＝ＣＦＯＣ3 Ｆ7 等が好ましく
採用される。特にテトラフルオロエチレン、クロロトリ
フルオロエチレンが好ましい。またフルオロオレフィン
としては単独でもよく、複数種が併用されてもよい。In the fluorine-containing copolymer of the present invention, a)
Tetrafluoroethylene as fluoroolefin,
Chlorotrifluoroethylene, vinylidene fluoride, trifluoroethylene, hexafluoropropylene, CF 2
= CFOCF 3 , CF 2 = CFOC 3 F 7 and the like are preferably adopted. Particularly, tetrafluoroethylene and chlorotrifluoroethylene are preferable. The fluoroolefin may be used alone or in combination of two or more kinds.
【０００６】また、ｂ）第３級炭素が酸素原子に直結し
たビニルエーテルとしてはＣＨ2 ＝ＣＨＯＣＲ1 Ｒ2 Ｒ
3 で表されるものであり、特にＲ1 、Ｒ2 がメチル基、
Ｒ3が炭素数１〜８のアルキル基であるものが好まし
い。代表的なものとしてｔ−ブチルビニルエーテル、
α、α’−ジメチルプロピルエーテルが挙げられる。Further, b) a vinyl ether having a tertiary carbon directly bonded to an oxygen atom is CH 2 ═CHOCR 1 R 2 R
And R 1 and R 2 are methyl groups,
It is preferable that R 3 is an alkyl group having 1 to 8 carbon atoms. Typical one is t-butyl vinyl ether,
Examples include α, α′-dimethylpropyl ether.
【０００７】更に、ｃ）硬化性官能基を有する単量体と
しては、水酸基含有不飽和エーテル類、水酸基含有不飽
和エステル類、エポキシ基含有不飽和エーテル類、加水
分解性シリル基含有ビニル単量体等が挙げられる。Further, as the c) monomer having a curable functional group, hydroxyl group-containing unsaturated ethers, hydroxyl group-containing unsaturated esters, epoxy group-containing unsaturated ethers, hydrolyzable silyl group-containing vinyl monomer The body etc. are mentioned.
【０００８】水酸基含有不飽和エーテル類の具体例とし
ては、ω−ヒドロキシブチルビニルエーテル、ω−ヒド
ロキシエチルビニルエーテル、シクロヘキサンジメタノ
ールモノビニルエーテル、ω−ヒドロキシブチルイソプ
ロペニルエーテル、ω−ヒドロキシエチルイソプロペニ
ルエーテル、エチレングリコールモノアリルエーテル、
プロピレングリコールモノアリルエーテル、等が挙げら
れる。Specific examples of the hydroxyl group-containing unsaturated ethers include ω-hydroxybutyl vinyl ether, ω-hydroxyethyl vinyl ether, cyclohexanedimethanol monovinyl ether, ω-hydroxybutyl isopropenyl ether, ω-hydroxyethyl isopropenyl ether and ethylene. Glycol monoallyl ether,
Propylene glycol monoallyl ether and the like can be mentioned.
【０００９】水酸基含有不飽和エステル類の具体例とし
ては、ω−ヒドロキシブタン酸ビニル、ω−ヒドロキシ
オクタン酸ビニル、ω−ヒドロキシブタン酸イソプロペ
ニル、ω−ヒドロキシブタン酸イソプロペニル、クロト
ン酸ヒドロキシエチル等が挙げられる。Specific examples of the hydroxyl group-containing unsaturated esters include vinyl ω-hydroxybutanoate, vinyl ω-hydroxyoctanoate, isopropenyl ω-hydroxybutanoate, isopropenyl ω-hydroxybutanoate, hydroxyethyl crotonic acid and the like. Is mentioned.
【００１０】エポキシ基含有不飽和エーテル類の具体例
としては、グリシジルビニルエーテル、グリシジルアリ
ルエーテル、１−ビニロキシブテンオキシド、１−アリ
ロキシブテンオキシド等が挙げられる。Specific examples of the epoxy group-containing unsaturated ethers include glycidyl vinyl ether, glycidyl allyl ether, 1-vinyloxybutene oxide, 1-allyloxybutene oxide and the like.
【００１１】加水分解性シリル基含有ビニル単量体の具
体例としては化３で表わされ、ビニルトリメトキシシラ
ン、ビニルトリエトキシシラン、アリルトリメトキシシ
ラン、アリルトリエトキシシラン、ビニロキシプロピル
トリメチルシロキシシラン、等が挙げられる。A specific example of the hydrolyzable silyl group-containing vinyl monomer is represented by Chemical formula 3, vinyltrimethoxysilane, vinyltriethoxysilane, allyltrimethoxysilane, allyltriethoxysilane, vinyloxypropyltrimethylsiloxy. Silane, etc. are mentioned.
【００１２】[0012]
【化３】 ＣＨ2 ＝ＣＲ1 （Ｏ）P Ｓｉ（ＯＲ2 ）q Ｒ3 3-q （Ｒ1 ＝Ｈ，ＣＨ3 ；Ｒ2 ＝ＣＨ3 ，Ｃ2 Ｈ5 ；Ｒ3 ＝
ＣＨ3 、Ｃ2 Ｈ5 、ｐ＝０又は１、ｑ＝１、２又は３）CH 2 ═CR 1 (O) P Si (OR 2 ) q R 3 3-q (R 1 ═H, CH 3 ; R 2 ═CH 3 , C 2 H 5 ; R 3 ═
CH 3 , C 2 H 5 , p = 0 or 1, q = 1, 2 or 3)
【００１３】なお上記硬化性官能基を有する単量体は、
それぞれ単独で用いてもよいし、２種以上組み合わせて
もよい。The monomer having a curable functional group is
They may be used alone or in combination of two or more.
【００１４】また上記共重合体にその特徴が失われない
範囲で共重合可能な他の単量体を共重合させることがで
きる。以下の単量体が例示可能である。エチレン、プロ
ピレン、イソブチレン等のオレフィン類、塩化ビニル、
塩化ビニリデン等のハロオレフィン類、酢酸ビニル、酪
酸ビニル、ピバリン酸ビニル、安息香酸ビニル、バーサ
チック酸ビニル、などのカルボン酸ビニル類、エチルビ
ニルエーテル、ｎ−ブチルビニルエーテル、オクチルビ
ニルエーテル、ネオペンチルビニルエーテル、シクロヘ
キシルビニルエーテル等のアルキルビニルエーテル類、
フェニルビニルエーテル、ベンジルビニルエーテル、ナ
フチルビニルエーテル等の芳香族ビニルエーテル、メチ
ルイソプロペニルエーテル、プロピルイソプロペニルエ
ーテル等のイソプロペニルエーテル類、蟻酸アリル、酪
酸アリル、安息香酸アリル、シクロヘキサンカルボン酸
アリル等のカルボン酸アリル、アリルエチルエーテル、
アリルフェニルエーテル等のアリルエーテル類、アクリ
ル酸エチル、メタクリル酸メチル等のアクリル酸・メタ
クリル酸エステル類、等が挙げられる。Further, the above-mentioned copolymer may be copolymerized with another monomer which is copolymerizable within the range in which the characteristics are not lost. The following monomers can be exemplified. Olefins such as ethylene, propylene and isobutylene, vinyl chloride,
Halo-olefins such as vinylidene chloride, vinyl acetate, vinyl butyrate, vinyl pivalate, vinyl benzoate, vinyl carboxylate such as vinyl versatate, ethyl vinyl ether, n-butyl vinyl ether, octyl vinyl ether, neopentyl vinyl ether, cyclohexyl vinyl ether. Alkyl vinyl ethers such as
Aromatic vinyl ethers such as phenyl vinyl ether, benzyl vinyl ether, naphthyl vinyl ether, methyl isopropenyl ether, isopropenyl ethers such as propyl isopropenyl ether, allyl formate, allyl butyrate, allyl benzoate, allyl carboxylate such as allyl cyclohexanecarboxylate, Allyl ethyl ether,
Examples thereof include allyl ethers such as allyl phenyl ether and acrylic acid / methacrylic acid esters such as ethyl acrylate and methyl methacrylate.
【００１５】本発明の含フッ素共重合体において、各構
成成分ａ）、ｂ）、ｃ）の構成比はａ）３０〜７０モル
％、ｂ）１０〜６０モル％、ｃ）５〜３０モル％の範囲
が好ましい。ａ）が３０％未満では耐候性が低下する。
ｂ）が１０％未満では剛性に劣り、６０％をこえると耐
候性に懸念がある。ｃ）が５％未満では耐薬品性が不足
し、３０％をこえると塗膜の脆性が高くなるので好まし
くない。In the fluorine-containing copolymer of the present invention, the constituent ratios of the respective constituents a), b) and c) are a) 30 to 70 mol%, b) 10 to 60 mol%, c) 5 to 30 mol. % Range is preferred. If a) is less than 30%, the weather resistance will decrease.
If b) is less than 10%, the rigidity is poor, and if it exceeds 60%, there is concern about weather resistance. If c) is less than 5%, the chemical resistance is insufficient, and if it exceeds 30%, the brittleness of the coating film increases, which is not preferable.
【００１６】本発明の含フッ素共重合体は、数平均分子
量が２０００〜１０００００、好ましくは、６０００〜
３００００でかつ分子量分布が４．０以下、好ましくは
３．０以下のものが好適である。分子量が２０００未満
では耐候性、耐薬品性が劣り、１０００００をこえると
塗料粘度が高く、施工性に難点がある。分子量分布が４
をこえると同様に施工性に難点が現れる。The fluorinated copolymer of the present invention has a number average molecular weight of 2,000 to 100,000, preferably 6,000.
A polymer having a molecular weight distribution of 30,000 and a molecular weight distribution of 4.0 or less, preferably 3.0 or less is suitable. If the molecular weight is less than 2000, the weather resistance and chemical resistance are inferior, and if it exceeds 100,000, the viscosity of the coating is high and the workability is difficult. Molecular weight distribution is 4
If it exceeds the above range, there will be a difficulty in workability.
【００１７】本発明の共重合体は、所定割合の単量体混
合物に重合触媒の共存下、あるいは非共存下に、重合開
始剤あるいは電離性放射線などの重合開始源を作用せし
めて共重合反応を行わしめることによって製造可能であ
る。ここで、重合開始剤としては、重合形式あるいは重
合媒体に応じて、水溶性のものあるいは油溶性のものが
適宜使用可能である。The copolymer of the present invention is subjected to a copolymerization reaction by allowing a polymerization initiator such as a polymerization initiator or ionizing radiation to act in the presence or absence of a polymerization catalyst in a monomer mixture in a predetermined ratio. It can be manufactured by carrying out. Here, as the polymerization initiator, a water-soluble one or an oil-soluble one can be appropriately used depending on the polymerization type or the polymerization medium.
【００１８】具体的には、水溶性開始剤としては、過硫
酸カリウムのごとき過硫酸塩、過酸化水素あるいはこれ
らと亜硫酸水素ナトリウム、チオ硫酸ナトリウムのごと
き還元剤からなるレドックス開始剤、さらにはこれらに
少量の鉄、第一鉄塩、硝酸銀等を共存させた系等の無機
系開始剤、またはジコハク酸パーオキシド、ジグルター
ル酸パーオキシド、モノコハク酸パーオキシドのごとき
二塩基酸酸化物、アゾビスイソブチルアミジン二塩基酸
塩等の有機系開始剤が、また、油溶性開始剤としては、
ｔ−ブチルパーオキシアセテートのごときパーオキシエ
ステル型過酸化物、ジイソプロピルパーオキシジカーボ
ネートのごときジアルキルパーオキシジカーボネート、
ベンゾイルパーオキシド、アゾビスイソブチロニトリル
等が例示される。Specifically, as the water-soluble initiator, a persulfate such as potassium persulfate, hydrogen peroxide or a redox initiator composed of these and a reducing agent such as sodium bisulfite and sodium thiosulfate, and further these Inorganic initiators such as those in which a small amount of iron, ferrous salt, silver nitrate, etc. coexist, or dibasic acid oxides such as disuccinic acid peroxide, diglutaric acid peroxide, and monosuccinic acid peroxide, azobisisobutylamidine dibasic Organic initiators such as acid salts, and as the oil-soluble initiator,
peroxyester type peroxides such as t-butyl peroxyacetate, dialkyl peroxydicarbonates such as diisopropyl peroxydicarbonate,
Examples thereof include benzoyl peroxide and azobisisobutyronitrile.
【００１９】重合開始剤の使用量は、種類、共重合反応
条件に応じて適宜変更可能であるが、通常は共重合され
るべき単量体全量に対して、０．０５〜０．５重量％程
度が採用される。The amount of the polymerization initiator used can be appropriately changed depending on the type and the conditions of the copolymerization reaction, but usually 0.05 to 0.5% by weight based on the total amount of the monomers to be copolymerized. % Is used.
【００２０】上記共重合反応に際して、反応形式として
は特に限定されることはなく、塊状重合、懸濁重合、乳
化重合、溶液重合等が採用し得るが、重合操作の安定
性、生成共重合体の分離の容易性等から、水性媒体中で
の乳化重合あるいはｔ−ブタノール等のアルコール類、
エステル類、１個以上のフッ素原子を含む飽和ハロゲン
化炭化水素類、キシレン等の芳香族炭化水素等を溶媒と
する溶液重合等が好ましく採用され得る。In the above-mentioned copolymerization reaction, the reaction mode is not particularly limited, and bulk polymerization, suspension polymerization, emulsion polymerization, solution polymerization and the like can be adopted, but the stability of the polymerization operation, the produced copolymer From the standpoint of ease of separation, etc., emulsion polymerization in an aqueous medium or alcohols such as t-butanol,
Solution polymerization using an ester, a saturated halogenated hydrocarbon containing one or more fluorine atoms, an aromatic hydrocarbon such as xylene, etc. as a solvent can be preferably adopted.
【００２１】反応温度は適宜選定可能であるが、通常は
１０℃〜９０℃程度が採用され得る。また、反応圧力
は、適宜選定可能であるが、通常は、１〜１００ｋｇ／
ｃｍ2、特に、２〜５０ｋｇ／ｃｍ2 程度を採用するの
が望ましい。The reaction temperature can be appropriately selected, but usually about 10 ° C to 90 ° C can be adopted. The reaction pressure can be appropriately selected, but is usually 1 to 100 kg /
It is desirable to employ cm 2 and especially about 2 to 50 kg / cm 2 .
【００２２】また、生成共重合体の固有粘度を前記範囲
に抑えるために、連鎖移動定数の比較的大きい反応媒体
を使用したり、適宜連鎖移動剤の共存下に共重合反応を
行わしめることが好ましい。In order to keep the intrinsic viscosity of the produced copolymer within the above range, a reaction medium having a relatively large chain transfer constant may be used, or the copolymerization reaction may be appropriately carried out in the presence of a chain transfer agent. preferable.
【００２３】本発明の塗料用硬化性樹脂組成物は、前記
含フッ素共重合体を主成分とし、溶剤、顔料、硬化剤等
から構成される。他の添加剤として、各種樹脂類、色別
れ防止剤、流動性調整剤、酸化防止剤、紫外線吸収剤等
を具体的用途に応じて配合できる。The curable resin composition for paints of the present invention comprises the above-mentioned fluorine-containing copolymer as a main component and is composed of a solvent, a pigment, a curing agent and the like. As other additives, various resins, color separation preventing agents, fluidity adjusting agents, antioxidants, ultraviolet absorbers and the like can be added depending on the specific application.
【００２４】溶剤としては、トルエン、キシレン等の芳
香族炭化水素類、ｎ−ブタノール、ｎ−ペンタノール等
のアルコール類、メチルイソブチルケトン、メチルエチ
ルケトン等のケトン類、エチルセロソルブ、ブチルセロ
ソルブ等のグリコールエーテル類、その他市販の各種シ
ンナー等が挙げられる。Examples of the solvent include aromatic hydrocarbons such as toluene and xylene, alcohols such as n-butanol and n-pentanol, ketones such as methyl isobutyl ketone and methyl ethyl ketone, and glycol ethers such as ethyl cellosolve and butyl cellosolve. , And other commercially available thinners and the like.
【００２５】顔料の具体的例としては、酸化チタン、炭
酸カルシウム、カーボンブラック等の無機顔料、フタロ
シアニン、キナクリドン系、アゾ系等の有機顔料が挙げ
られる。添加量は、耐候性・光沢保持の観点からその添
加量は通常、共重合体に対し約１５０重量％までが好ま
しい。Specific examples of the pigment include inorganic pigments such as titanium oxide, calcium carbonate and carbon black, and organic pigments such as phthalocyanine, quinacridone type and azo type pigments. From the viewpoint of weather resistance and gloss retention, the amount of addition is usually preferably up to about 150% by weight based on the copolymer.
【００２６】配合可能な各種樹脂類としては、アクリル
系樹脂、エポキシ系樹脂、塩化ビニル系樹脂、本発明の
含フッ素共重合体以外の樹脂（ＰＴＦＥ、ＰＦＡ、ＦＥ
Ｐ、ＥＴＦＥ、ＰＶＤＦ、ＰＶＦ等）、などの１種また
は２種以上が挙げられるが特に限定されるものではな
い。Various resins that can be blended include acrylic resins, epoxy resins, vinyl chloride resins, and resins (PTFE, PFA, FE) other than the fluorine-containing copolymer of the present invention.
P, ETFE, PVDF, PVF, etc.) and the like, but are not particularly limited.
【００２７】本発明の硬化性樹脂組成物は、硬化性官能
基の種類に応じ、各種の硬化反応をさせることが可能
で、常温硬化タイプ及び焼付硬化タイプの塗料として用
いることができる。The curable resin composition of the present invention can undergo various curing reactions depending on the type of curable functional group, and can be used as a room temperature curing type and a bake curing type coating material.
【００２８】硬化性官能基が水酸基の場合、通常のアク
リルポリオール、ポリエステルポリオール塗料に用いら
れている硬化剤、例えば多価イソシアネート類、ブロッ
ク化多価イソシアネート類、メラミン樹脂、尿素樹脂、
多塩基酸等が適用される。When the curable functional group is a hydroxyl group, a curing agent used in ordinary acrylic polyol and polyester polyol coatings, such as polyvalent isocyanates, blocked polyvalent isocyanates, melamine resins, urea resins,
A polybasic acid or the like is applied.
【００２９】多価イソシアネートとしてはヘキサメチレ
ンジイソシアネート、イソフォロンジイソシアネート、
等の無黄変ジイソシアネートやその付加物、イソシアヌ
レート環を有する多価イソシアネート等が好ましく使用
される。なおこれらの多価イソシアネートを用いて常温
硬化させる場合、ジブチル錫ジラウレート等の公知の触
媒を添加して硬化促進を行うこともできる。As the polyvalent isocyanate, hexamethylene diisocyanate, isophorone diisocyanate,
A non-yellowing diisocyanate such as the above, an adduct thereof, and a polyisocyanate having an isocyanurate ring are preferably used. When these polyisocyanates are used for room temperature curing, known catalysts such as dibutyltin dilaurate may be added to accelerate curing.
【００３０】硬化性官能基がエポキシ基である場合、硬
化剤としてポリアミン類、多価酸無水物、ポリフェノー
ル類、等が挙げられるが、特に ヘキサヒドロ無水フタ
ル酸、メチルヘキサヒドロ無水フタル酸、ポリセバシン
酸無水物等の脂肪族酸無水物が好ましく使用される。When the curable functional group is an epoxy group, examples of the curing agent include polyamines, polyhydric acid anhydrides, polyphenols, and the like, and particularly hexahydrophthalic anhydride, methylhexahydrophthalic anhydride, polysebacic acid. Aliphatic acid anhydrides such as anhydrides are preferably used.
【００３１】硬化性官能基が、加水分解性シリル基であ
る場合、ブチルアミン、トリエチルアミン等のアミン化
合物、ジブチル錫ジラウレート、オクチル酸錫、ナフテ
ン酸コバルト等の含金属化合物、ｐ−トルエンスルフォ
ン酸、トリクロロ酢酸等の酸性化合物等との硬化触媒を
用いて湿気硬化させることができる。When the curable functional group is a hydrolyzable silyl group, an amine compound such as butylamine and triethylamine, a metal-containing compound such as dibutyltin dilaurate, tin octylate and cobalt naphthenate, p-toluene sulfonic acid and trichloro are included. It can be moisture-cured using a curing catalyst with an acidic compound such as acetic acid.
【００３２】[0032]
（共重合体の製造）内容積２６０ＣＣの撹拌機付きステ
ンレス製オートクレーブにキシレン９８ｇ、エチルアル
コール２８ｇ、ｔ−ブチルビニルエーテル（ＴＢＶＥ）
２３．８ｇ、ヒドロキシブチルビニルエーテル（ＨＢＶ
Ｅ）６．９ｇ、炭酸カリウム０．７ｇ，アゾビスイソブ
チロニトリル（ＡＩＢＮ）０．３ｇをしこみ液体窒素に
よる固化脱気により溶存酸素を除去する。しかるのちク
ロロトリフルオロエチレン（ＣＴＦＥ）３４．６ｇをオ
ートクレーブ内に導入し徐々に昇温する。(Production of Copolymer) 98 g of xylene, 28 g of ethyl alcohol, t-butyl vinyl ether (TBVE) were placed in a stainless steel autoclave equipped with a stirrer and having an internal volume of 260 CC.
23.8 g, hydroxybutyl vinyl ether (HBV
E) 6.9 g, potassium carbonate 0.7 g, and azobisisobutyronitrile (AIBN) 0.3 g are infiltrated, and dissolved oxygen is removed by solidification degassing with liquid nitrogen. Then, 34.6 g of chlorotrifluoroethylene (CTFE) is introduced into the autoclave and the temperature is gradually raised.
【００３３】オートクレーブ内の温度が６５℃に達した
時点で圧力３．３ｋｇ／ｃｍ2 を示した。 その後、３
時間撹拌下に反応を続け、圧力が１．３ｋｇ／ｃｍ2 に
低下した時点でオートクレーブを開放し、未反応のＣＴ
ＦＥを除去し、共重合体溶液を取り出した。この共重合
体から炭酸カリウムを濾別し、ｎ−ヘキサンで再沈し乾
燥した。得られた共重合体の収量は４８ｇであった。When the temperature in the autoclave reached 65 ° C., the pressure was 3.3 kg / cm 2 . Then 3
The reaction was continued under stirring for an hour, and when the pressure dropped to 1.3 kg / cm 2 , the autoclave was opened and unreacted CT was released.
FE was removed and the copolymer solution was taken out. From this copolymer, potassium carbonate was filtered off, reprecipitated with n-hexane and dried. The yield of the obtained copolymer was 48 g.
【００３４】得られた共重合体の数平均分子量は８１０
０であり、ガラス転移温度は７２℃であった。また元素
分析、ＮＭＲで測定したこの共重合体の組成比は、ＣＴ
ＦＥ／ＴＢＶＥ／ＨＢＶＥ（モル比）が５１／３９／１
０であった。同様な方法で表１に示した共重合体を調製
した。The number average molecular weight of the obtained copolymer was 810.
And the glass transition temperature was 72 ° C. The composition ratio of this copolymer measured by elemental analysis and NMR is CT.
FE / TBVE / HBVE (molar ratio) is 51/39/1
It was 0. The copolymers shown in Table 1 were prepared in the same manner.
【００３５】（組成物の調製）得られた共重合体１０ｇ
をキシレン１０ｇに溶解させ、硬化剤として表１に示し
た各種硬化剤を添加し、アプリケーターをもちいてクロ
メート処理アルミ板に塗布、１４０℃３０分で乾燥硬化
させた後、塗膜物性の測定を行った。結果を表１にまと
めた。(Preparation of composition) 10 g of the obtained copolymer
Was dissolved in 10 g of xylene, various curing agents shown in Table 1 were added as a curing agent, the solution was applied to a chromate-treated aluminum plate using an applicator, and dried and cured at 140 ° C. for 30 minutes. went. The results are summarized in Table 1.
【００３６】比較例 実施例と同様な方法で共重合体及び塗料を調製し、塗膜
性能を測定した。結果を表１に示した。表１にみられる
ように本発明の塗料用組成物は高い表面硬度を持ち、優
れた耐汚染性を有している。Comparative Example A copolymer and a coating material were prepared in the same manner as in the example, and the coating film performance was measured. The results are shown in Table 1. As shown in Table 1, the coating composition of the present invention has high surface hardness and excellent stain resistance.
【００３７】[0037]
【表１】 [Table 1]
【００３８】[0038]
【発明の効果】本発明の塗料用硬化性樹脂組成物は、光
沢・耐候性・耐薬品性に優れるフッ素樹脂塗料の利点に
加え、従来問題にされていた塗膜の表面硬度・耐汚染性
が改善されており、カラー鋼板・カラーアルミ板・アル
ミサッシ用の焼付け塗料としてあるいは現場施工可能な
常乾型塗料として有用である。基材の材質については各
種金属材料（鉄・アルミ・銅・ステンレス等）のほか、
コンクリート、ガラス等の無機材料、ＦＲＰ、塩ビ、ポ
リエチレン、ポリカーボネート等の有機材料、木材等の
天然材料等の広範な材料に適用できる。EFFECTS OF THE INVENTION The curable resin composition for paints of the present invention has the advantages of a fluororesin paint excellent in gloss, weather resistance and chemical resistance, as well as the surface hardness and stain resistance of the coating film, which has been a problem in the past. Has been improved, and it is useful as a baking paint for colored steel plates, colored aluminum plates, and aluminum sashes, or as a normally dry paint that can be applied on site. Regarding the material of the base material, in addition to various metallic materials (iron, aluminum, copper, stainless steel, etc.),
It can be applied to a wide range of materials such as inorganic materials such as concrete and glass, organic materials such as FRP, vinyl chloride, polyethylene and polycarbonate, and natural materials such as wood.
Claims (7)
が酸素原子に直結したビニルエーテル及びｃ）硬化性官
能基含有単量体を構成成分として含有する含フッ素共重
合体とｄ）硬化剤を含んでなることを特徴とする塗料用
硬化性樹脂組成物。1. A fluorine-containing copolymer containing a) a fluoroolefin, b) a vinyl ether in which a tertiary carbon is directly bonded to an oxygen atom, and c) a curable functional group-containing monomer, and d) a curing agent. A curable resin composition for coating material, comprising:
が酸素原子に直結したビニルエーテル及びｃ）硬化性官
能基含有単量体を構成成分として含有する含フッ素共重
合体とｄ）硬化触媒を含んでなることを特徴とする塗料
用硬化性樹脂組成物。2. A fluorine-containing copolymer containing a) a fluoroolefin, b) a vinyl ether in which a tertiary carbon is directly bonded to an oxygen atom, and c) a curable functional group-containing monomer, and d) a curing catalyst. A curable resin composition for coating material, comprising:
項１の塗料用硬化性樹脂組成物。 【化１】ＣＦ2 ＝ＣＦＸ （Ｘ＝Ｆ，Ｃｌ，ＣＦ3 ，ＯＣＦ3 ，ＯＣ3 Ｆ7 ）3. The curable resin composition for coating material according to claim 1, wherein the fluoroolefin is represented by Chemical Formula 1. Embedded image CF 2 ═CFX (X = F, Cl, CF 3 , OCF 3 , OC 3 F 7 ).
ーテルが、ＣＨ2 ＝ＣＨＯＣ（ＣＨ3 ）3 である請求項
１の塗料用硬化性樹脂組成物。4. The curable resin composition for coating composition according to claim 1, wherein the vinyl ether having a tertiary carbon directly bonded to an oxygen atom is CH 2 ═CHOC (CH 3 ) 3 .
であり、硬化剤がメラミン樹脂あるいは、ポリイソシア
ネートである請求項１の塗料用硬化性樹脂組成物。5. The curable resin composition for coating according to claim 1, wherein the functional group of the curable functional group-containing monomer is a hydroxyl group, and the curing agent is a melamine resin or polyisocyanate.
シ基であり、硬化剤が多価酸無水物である請求項１の塗
料用硬化性樹脂組成物。6. The curable resin composition for coating according to claim 1, wherein the functional group of the curable functional group-containing monomer is an epoxy group, and the curing agent is a polyhydric acid anhydride.
加水分解性シリル化合物である請求項２の塗料用硬化性
樹脂組成物。 【化２】 ＣＨ2 ＝ＣＲ1 （Ｏ）P Ｓｉ（ＯＲ2 ）q Ｒ3 3-q （Ｒ1 ＝Ｈ，ＣＨ3 ；Ｒ2 ＝ＣＨ3 ，Ｃ2 Ｈ5 ； Ｒ3
＝ＣＨ3 、Ｃ2 Ｈ5 、ｐ＝０又は１、ｑ＝１、２又は
３）7. The curable resin composition for coating according to claim 2, wherein the curable functional group-containing monomer is a hydrolyzable silyl compound represented by Chemical formula 2. Embedded image CH 2 = CR 1 (O) P Si (OR 2 ) q R 3 3-q (R 1 = H, CH 3 ; R 2 = CH 3 , C 2 H 5 ; R 3
= CH 3 , C 2 H 5 , p = 0 or 1, q = 1, 2 or 3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17230193A JPH073202A (en) | 1993-06-18 | 1993-06-18 | Curable resin composition for coating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17230193A JPH073202A (en) | 1993-06-18 | 1993-06-18 | Curable resin composition for coating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH073202A true JPH073202A (en) | 1995-01-06 |
Family
ID=15939391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17230193A Pending JPH073202A (en) | 1993-06-18 | 1993-06-18 | Curable resin composition for coating material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH073202A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1772918A1 (en) * | 2004-07-23 | 2007-04-11 | Shinetsu Chemical Co., Ltd. | Curable resin composition for fuel cell electrolyte film and electrolyte film, process for producing the same, electrolyte film/electrode assembly, and process for producing the same |
| CN1313550C (en) * | 2004-06-11 | 2007-05-02 | 中国石油天然气集团公司 | Acrylic resin paint for reflecting light and its production process |
| WO2007132736A1 (en) * | 2006-05-11 | 2007-11-22 | Asahi Glass Company, Limited | Powder coating composition |
-
1993
- 1993-06-18 JP JP17230193A patent/JPH073202A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313550C (en) * | 2004-06-11 | 2007-05-02 | 中国石油天然气集团公司 | Acrylic resin paint for reflecting light and its production process |
| EP1772918A1 (en) * | 2004-07-23 | 2007-04-11 | Shinetsu Chemical Co., Ltd. | Curable resin composition for fuel cell electrolyte film and electrolyte film, process for producing the same, electrolyte film/electrode assembly, and process for producing the same |
| EP1772918A4 (en) * | 2004-07-23 | 2011-05-04 | Shinetsu Chemical Co | Curable resin composition for fuel cell electrolyte film and electrolyte film, process for producing the same, electrolyte film/electrode assembly, and process for producing the same |
| WO2007132736A1 (en) * | 2006-05-11 | 2007-11-22 | Asahi Glass Company, Limited | Powder coating composition |
| US7652110B2 (en) | 2006-05-11 | 2010-01-26 | Asahi Glass Company, Limited | Powder coating composition |
| JP5151978B2 (en) * | 2006-05-11 | 2013-02-27 | 旭硝子株式会社 | Powder coating composition |
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