JP2002173638A - Polyurea-based paint film composition - Google Patents
Polyurea-based paint film compositionInfo
- Publication number
- JP2002173638A JP2002173638A JP2001296054A JP2001296054A JP2002173638A JP 2002173638 A JP2002173638 A JP 2002173638A JP 2001296054 A JP2001296054 A JP 2001296054A JP 2001296054 A JP2001296054 A JP 2001296054A JP 2002173638 A JP2002173638 A JP 2002173638A
- Authority
- JP
- Japan
- Prior art keywords
- polyurea
- mass
- coating composition
- plasticizer
- viscosity
- 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
Landscapes
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、溶剤を用いなくとも充
分低粘度で作業性がよく、常温で硬化し、その硬化性、
硬化後の塗膜外観、機械強度およびトップコートの接着
性に優れたポリウレア系塗膜組成物に関する。BACKGROUND OF THE INVENTION The present invention relates to the present invention, which has a sufficiently low viscosity and good workability without using a solvent, and cures at room temperature.
The present invention relates to a polyurea-based coating composition excellent in cured coating appearance, mechanical strength, and topcoat adhesion.
【０００２】[0002]
【従来の技術】イソシアネート基末端ポリウレタンプレ
ポリマーを主成分とする主剤と、活性水素化合物を含む
硬化剤とからなる二液型常温硬化性組成物を硬化させて
得られるポリウレタンエラストマーは、その優れた柔軟
性により、防水材、床材、防食材、シーリング材、弾性
舗装材などの幅広い建材用途に用いられている。2. Description of the Related Art Polyurethane elastomers obtained by curing a two-pack type room temperature curable composition comprising a main component mainly composed of an isocyanate group-terminated polyurethane prepolymer and a curing agent containing an active hydrogen compound have excellent properties. Due to its flexibility, it is used for a wide range of building materials such as waterproofing materials, flooring materials, anticorrosion materials, sealing materials, and elastic pavement materials.
【０００３】二液型常温硬化性組成物は、手塗りタイプ
と速硬化スプレータイプがある。手塗りタイプは、ポリ
オキシプロピレンポリオールとトリレンジイソシアネー
トとを反応させて得られるイソシアネート基末端ポリウ
レタンプレポリマーを主成分とする主剤と、ポリオキシ
プロピレンポリオールおよび４，４’−メチレンビス
（２−クロロアニリン）を主成分とする硬化剤からなる
二液型が現在でも主流である。[0003] two-cold-curable composition may hand-painted type and fast curing spray type. The hand-painted type comprises a main component mainly composed of an isocyanate group-terminated polyurethane prepolymer obtained by reacting a polyoxypropylene polyol with tolylene diisocyanate, a polyoxypropylene polyol and 4,4′-methylenebis (2-chloroaniline). The two-component type comprising a curing agent whose main component is) is still in use today.
【０００４】また、超速硬化スプレータイプは、ポリオ
キシプロピレンポリオールと４，４’−ジフェニルメタ
ンジイソシアネートとを反応させて得られるイソシアネ
ート基末端ポリウレタンプレポリマーを主成分とする主
剤と、ポリオキシプロピレンポリオールおよびジエチル
トルエンジアミンを主成分とする硬化剤とからなる二液
型が主流である。[0004] The ultra-fast curing spray type comprises a main component mainly composed of an isocyanate group-terminated polyurethane prepolymer obtained by reacting polyoxypropylene polyol with 4,4'-diphenylmethane diisocyanate; The two-component type comprising a curing agent containing toluenediamine as a main component is mainly used.
【０００５】[0005]
【発明が解決しようとする課題】従来の手塗りタイプの
硬化剤に用いられる４，４’−メチレンビス（２−クロ
ロアニリン）は常温で固体であるため、通常、ポリオキ
シプロピレンポリオールに３０〜５０質量％の濃度に溶
解して使用される。この溶液は粘性が高く、さらに硬化
剤には炭酸カルシウムなどの充填剤を混合するため、硬
化剤の粘度を低下させるために有機溶剤を１〜８質量％
添加する必要があった。Since 4,4'-methylenebis (2-chloroaniline) used as a conventional hand-coating type curing agent is solid at room temperature, it is usually added to polyoxypropylene polyol in an amount of 30 to 50%. Used by dissolving to a concentration of mass%. This solution has a high viscosity, and furthermore, a filler such as calcium carbonate is mixed with the curing agent. To reduce the viscosity of the curing agent, 1 to 8% by mass of an organic solvent is used.
It had to be added.
【０００６】しかし、溶剤の使用は環境衛生上好ましく
なく、また、溶剤揮発の影響で硬化塗膜が肉痩せし、安
定した機械物性が得られにくい問題があった。However, there is a problem that the use of a solvent is not preferable from the viewpoint of environmental hygiene, and the cured coating film becomes thinner due to the effect of the solvent volatilization, and it is difficult to obtain stable mechanical properties.
【０００７】一方、超速硬化スプレータイプの主剤およ
び硬化剤は、常温では粘度が高いため、吹き付け施工の
際に５０〜７０℃に加温しなければならず、準備作業に
手間がかかる問題があった。また、加温するために原料
タンクから配管までヒーターや断熱材によって完全に保
温して温度管理する必要があった。On the other hand, since the base material and the curing agent of the ultra-fast curing spray type have high viscosities at room temperature, they have to be heated to 50 to 70 ° C. at the time of spraying, so that the preparation work is troublesome. Was. In addition, in order to heat, it was necessary to completely maintain the temperature from the raw material tank to the pipe by using a heater or a heat insulating material to control the temperature.
【０００８】したがって、本発明の目的は、溶剤を用い
なくても充分低粘度で作業性がよく、常温で硬化し、そ
の硬化性、硬化後の塗膜外観、機械強度およびトップコ
ートの接着性に優れたポリウレア系塗膜組成物を提供す
ることにある。[0008] Accordingly, an object of the present invention is to provide a sufficiently low viscosity and good workability without using a solvent, and to cure at room temperature, its curability, appearance of the coated film after curing, mechanical strength, and adhesion of the top coat. To provide a polyurea-based coating film composition excellent in water resistance.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するた
め、本発明のポリウレア系塗膜組成物は、イソシアネー
ト基含有化合物を含む主剤と、芳香族ポリアミンを含む
硬化剤とを含有するポリウレア系塗膜組成物であって、
炭素数１２〜２４の脂肪族モノカルボン酸と炭素数１〜
１０のモノオールとのエステルの１種または２種以上か
らなる、２０℃における粘度が２０ｍＰａ・ｓ以下の可
塑剤を含有し、かつ実質的に溶剤を含まないことを特徴
とする。In order to achieve the above object, a polyurea-based coating composition of the present invention comprises a polyurea-based coating composition containing a main agent containing an isocyanate group-containing compound and a curing agent containing an aromatic polyamine. A membrane composition,
Aliphatic monocarboxylic acids having 12 to 24 carbon atoms and 1 to 1 carbon atoms
It is characterized by containing a plasticizer having a viscosity at 20 ° C. of 20 mPa · s or less, which is composed of one or two or more esters with 10 monols, and is substantially free of a solvent.
【００１０】上記発明によれば、溶剤を用いなくても充
分低粘度で作業性がよく、常温で硬化し、その硬化性、
硬化後の塗膜外観、機械強度およびトップコートの接着
性に優れたポリウレア系塗膜組成物を提供できる。According to the above invention, the viscosity is sufficiently low and the workability is good without using a solvent, and the composition is cured at room temperature,
A polyurea-based coating composition having excellent cured coating appearance, mechanical strength, and top coat adhesion can be provided.
【００１１】本発明の好ましい態様の一つは、前記イソ
シアネート基含有化合物が、ポリオキシプロピレンポリ
オールと、トリレンジイソシアネートまたは４，４’−
ジフェニルメタンジイソシアネートとを反応させて得ら
れるイソシアネート基末端ウレタンプレポリマーであ
る。この態様によれば、主剤の臭気が少ないので安全性
の問題が少なく、また充分な硬化性を有するポリウレア
系塗膜組成物を提供できる。In a preferred embodiment of the present invention, the isocyanate group-containing compound is composed of polyoxypropylene polyol, tolylene diisocyanate or 4,4'-
It is an isocyanate group-terminated urethane prepolymer obtained by reacting with diphenylmethane diisocyanate. According to this aspect, the odor of the main agent is small, so that the problem of safety is small, and a polyurea-based coating composition having sufficient curability can be provided.
【００１２】また、好ましい態様のもう一つは、前記芳
香族ポリアミンが、４，４’−メチレンビス（２−クロ
ロアニリン）、ビスメチルチオトルエンジアミンおよび
ジエチルトルエンジアミンからなる群から選ばれた１種
以上の混合物である。この態様によれば、常温での硬化
性を充分に満足すると共に得られた硬化物の機械強度お
よび伸び性能に優れたポリウレア系塗膜組成物を提供で
きる。Another preferred embodiment is that the aromatic polyamine is at least one member selected from the group consisting of 4,4'-methylenebis (2-chloroaniline), bismethylthiotoluenediamine and diethyltoluenediamine. Is a mixture of According to this aspect, it is possible to provide a polyurea-based coating composition which sufficiently satisfies the curability at room temperature and has excellent mechanical strength and elongation performance of the obtained cured product.
【００１３】また、好ましい態様のもう一つは、前記可
塑剤を、塗膜組成物全量に対して２〜１５質量％含む。
この態様によれば、溶剤を用いなくても充分低粘度で作
業性がよく、また、トップコートの接着性に優れたポリ
ウレア系塗膜組成物を提供できる。[0013] Another preferred embodiment, the plasticizer comprises from 2 to 15 wt% with respect to the coating composition the total amount.
According to this aspect, it is possible to provide a polyurea-based coating composition having sufficiently low viscosity and good workability without using a solvent, and having excellent adhesion of a top coat.
【００１４】また、好ましい態様のもう一つは、前記ポ
リウレア系塗膜組成物が、手塗りタイプまたは超速硬化
スプレータイプの防水材、床材または防食材である。こ
の態様によれば、作業性のよい手塗りタイプまたは超速
硬化スプレータイプの塗膜組成物を提供できる。In another preferred embodiment, the polyurea-based coating composition is a waterproof material, floor material or anticorrosive material of a hand-coating type or an ultra-fast-curing spray type. According to this aspect, it is possible to provide a coating composition of a hand coating type or a super-fast curing spray type having good workability.
【００１５】[0015]
【発明の実施の形態】本発明のポリウレア系塗膜組成物
においては、炭素数１２〜２４の脂肪族モノカルボン酸
と炭素数１〜１０のモノオールとのエステル（以下、脂
肪族モノカルボン酸アルキルエステルという。）の１種
または２種以上からなる、２０℃における粘度が２０ｍ
Ｐａ・ｓ以下の可塑剤が用いられる。上記脂肪族モノカ
ルボン酸アルキルエステルの１種または２種以上からな
る可塑剤は、２０℃における粘度が１〜２０ｍＰａ・ｓ
が好ましく、３〜１０ｍＰａ・ｓが特に好ましい。この
ような脂肪族モノカルボン酸アルキルエステルの１種ま
たは２種以上を可塑剤として用いることにより、溶剤を
用いることなく主剤と硬化剤の混合液の粘度を大幅に下
げることができる。BEST MODE FOR CARRYING OUT THE INVENTION In the polyurea-based coating composition of the present invention, an ester of an aliphatic monocarboxylic acid having 12 to 24 carbon atoms and a monool having 1 to 10 carbon atoms (hereinafter referred to as aliphatic monocarboxylic acid) Having a viscosity at 20 ° C. of 20 m or more.
A plasticizer of Pa · s or less is used. The plasticizer comprising one or more of the above-mentioned aliphatic monocarboxylic acid alkyl esters has a viscosity at 20 ° C of 1 to 20 mPa · s.
Is preferred, and 3 to 10 mPa · s is particularly preferred. By using one or more of such aliphatic monocarboxylic acid alkyl esters as a plasticizer, the viscosity of the mixture of the main agent and the curing agent can be significantly reduced without using a solvent.
【００１６】本発明における可塑剤としては、上記脂肪
族モノカルボン酸アルキルエステルに加えて、炭素数１
２〜２４の脂肪族モノカルボン酸と炭素数２〜１０のジ
オールとのジエステルを併用してもよい。As the plasticizer in the present invention, in addition to the above aliphatic monocarboxylic acid alkyl ester, a C 1 -C 1
A diester of an aliphatic monocarboxylic acid having 2 to 24 carbon atoms and a diol having 2 to 10 carbon atoms may be used in combination.
【００１７】上記炭素数１２〜２４の脂肪族モノカルボ
ン酸としては、ラウリン酸、ミリスチン酸、パルミチン
酸、ステアリン酸、オレイン酸、バクセン酸、リノール
酸、リノレン酸、エイコサン酸、ドコサン酸、テトラコ
サン酸などが挙げられる。The aliphatic monocarboxylic acids having 12 to 24 carbon atoms include lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, vaccenic acid, linoleic acid, linolenic acid, eicosanoic acid, docosanoic acid, and tetracosanoic acid. And the like.
【００１８】また、上記炭素数１〜１０のモノオールと
しては、炭素数１〜５のモノオールが特に好ましく、メ
タノールが最も好ましい。The monool having 1 to 10 carbon atoms is particularly preferably a monool having 1 to 5 carbon atoms, and most preferably methanol.
【００１９】さらに、アマニ油、オリーブ油、けし油、
ごま油、大豆油、糠油、つばき油、なたね油、ひまわり
油などの植物油脂や、アヒル、ウサギ、牛、馬、羊、ミ
ンク、鶏、ブタ、カサゴ、マンボウ、キンメダイなどの
動物油脂を変性して得られるモノカルボン酸アルキルエ
ステル混合物も挙げられる。Linseed oil, olive oil, poppy oil,
Modified vegetable oils such as sesame oil, soybean oil, bran oil, camellia oil, rapeseed oil, sunflower oil, and animal oils such as ducks, rabbits, cows, horses, sheep, mink, chickens, pigs, scorpions, sunfish, and sea bream And the resulting monocarboxylic acid alkyl ester mixture.
【００２０】本発明においては、大豆油脂肪酸（分析
例：リノール酸５４％、オレイン酸２４％、パルミチン
酸１０％、リノレン酸８％、ステアリン酸４％）、糠油
脂肪酸（分析例：リノール酸３８％、オレイン酸４１
％、パルミチン酸１７％、ステアリン酸２％、リノレン
酸２％）、なたね油脂肪酸（分析例：リノール酸２２
％、オレイン酸５８％、パルミチン酸５％、ステアリン
酸３％、リノレン酸１２％）などの脂肪酸のメタノール
エステルであるモノカルボン酸メチルエステル混合物が
低粘度（２０℃における粘度は５〜８ｍＰａ・ｓ）であ
り、かつ揮発性が低い点から最も好ましい。In the present invention, soybean oil fatty acids (analysis example: linoleic acid 54%, oleic acid 24%, palmitic acid 10%, linolenic acid 8%, stearic acid 4%), bran oil fatty acid (analysis example: linoleic acid 38) %, Oleic acid 41
%, Palmitic acid 17%, stearic acid 2%, linolenic acid 2%), rapeseed oil fatty acid (Analysis example: linoleic acid 22
%, Oleic acid 58%, palmitic acid 5%, stearic acid 3%, and linolenic acid 12%) have low viscosity (the viscosity at 20 ° C. is 5 to 8 mPa · s). ) And low volatility.
【００２１】一方、フタル酸ジオクチル、フタル酸ジブ
チル、フタル酸ジノニル、フタル酸ジイソノニル、アジ
ピン酸ジオクチル、塩素化パラフィン、石油系可塑剤な
どの汎用可塑剤は少量併用できるが、充分な粘度低減効
果が得られないため、使用しないことが好ましい。も
し、併用する場合、その使用量は、上記脂肪族モノカル
ボン酸アルキルエステルを含む可塑剤全量に対して５０
質量％以下が好ましく、３０質量％以下がより好まし
い。On the other hand, general-purpose plasticizers such as dioctyl phthalate, dibutyl phthalate, dinonyl phthalate, diisononyl phthalate, dioctyl adipate, chlorinated paraffins, and petroleum plasticizers can be used in a small amount, but a sufficient viscosity reducing effect is obtained. It is preferable not to use it because it cannot be obtained. If used in combination, the amount used is 50 parts based on the total amount of the plasticizer containing the aliphatic monocarboxylic acid alkyl ester.
It is preferably at most 30 mass%, more preferably at most 30 mass%.
【００２２】本発明においては、可塑剤として上記脂肪
族モノカルボン酸アルキルエステルを塗膜組成物全量に
対して２〜１５質量％用いることが好ましい。可塑剤の
使用量が２質量％未満であると充分な粘度低減効果が得
られず、１５質量％超であると硬化塗膜がブリードしや
すくなり、トップコートの接着性が低下する。In the present invention, it is preferable to use 2 to 15% by mass of the above-mentioned aliphatic monocarboxylic acid alkyl ester as a plasticizer based on the total amount of the coating composition. If the amount of the plasticizer is less than 2% by mass, a sufficient effect of reducing the viscosity cannot be obtained. If the amount is more than 15% by mass, the cured coating film tends to bleed, and the adhesion of the top coat decreases.
【００２３】上記可塑剤は、主剤および／または硬化剤
に添加することができるが、手塗りタイプの塗膜組成物
においては、硬化剤に可塑剤を添加することが好まし
い。硬化剤に上記可塑剤を添加することにより、充填剤
をより均一に効率よく混練することができ、硬化塗膜の
表面外観が際だって良好となる。その添加量は、硬化剤
中３０質量％以下が好ましく、５〜２５質量％がより好
ましい。The above-mentioned plasticizer can be added to the main agent and / or the curing agent. In a hand-painted coating composition, it is preferable to add the plasticizer to the curing agent. By adding the above plasticizer to the curing agent, the filler can be more uniformly and efficiently kneaded, and the surface appearance of the cured coating film is remarkably improved. The addition amount is preferably 30 wt% or less in the curing agent, and more preferably 5 to 25 wt%.
【００２４】一方、超速硬化スプレータイプの塗膜組成
物においては、主剤の方が特に粘度が高いので、主剤に
可塑剤を添加することが好ましい。上記可塑剤を用いる
ことにより、より低粘度になるので、従来、吹き付け施
工の際に主剤および硬化剤を５０〜７０℃に加温する必
要があったが、４０〜６０℃程度の加温で充分に施工で
きる。その添加量は、主剤中３０質量％以下が好まし
く、５〜２５質量％がより好ましい。On the other hand, in the coating composition of the ultra-fast-curing spray type, it is preferable to add a plasticizer to the main component because the main component has a particularly high viscosity. By using the above plasticizer, the viscosity becomes lower, so conventionally, it was necessary to heat the main agent and the curing agent to 50 to 70 ° C at the time of spraying construction, but at a heating of about 40 to 60 ° C. Can be fully implemented. The addition amount is preferably 30% by mass or less in the main agent, and more preferably 5 to 25% by mass.
【００２５】本発明のポリウレア系塗膜組成物におい
て、主剤に含まれるイソシアネート基含有化合物として
は、ポリイソシアネート、およびポリオールとポリイソ
シアネートとを反応させて得られるイソシアネート基末
端ウレタンプレポリマーなどが挙げられる。これらは単
独で用いてもよく、両者を混合して用いてもよい。In the polyurea-based coating composition of the present invention, examples of the isocyanate group-containing compound contained in the main component include polyisocyanate and isocyanate group-terminated urethane prepolymer obtained by reacting a polyol with polyisocyanate. . These may be used alone or as a mixture of both.
【００２６】ポリイソシアネートとしては、イソシアネ
ート基を２個以上有する芳香族系ポリイソシアネート、
脂肪族系ポリイソシアネートまたは変性ポリイソシアネ
ートなどが挙げられる。本発明においては、芳香族系ポ
リイソシアネートまたはその変性体が好ましく、具体的
には、４，４’−ジフェニルメタンジイソシアネート
（以下、ＭＤＩという。）、ポリフェニルポリメチレン
ポリイソシアネート（以下、クルードＭＤＩとい
う。）、カルボジイミド変性ジフェニルメタンジイソシ
アネート（以下、カルボジイミド変性ＭＤＩという。）
などの液状のものが特に好ましい。これらは単独で用い
てもよく、両者を混合して用いてもよい。Examples of the polyisocyanate include aromatic polyisocyanates having two or more isocyanate groups,
Examples include aliphatic polyisocyanates or modified polyisocyanates. In the present invention, an aromatic polyisocyanate or a modified product thereof is preferable. Specifically, 4,4′-diphenylmethane diisocyanate (hereinafter, referred to as MDI) and polyphenylpolymethylene polyisocyanate (hereinafter, referred to as crude MDI). ), Carbodiimide-modified diphenylmethane diisocyanate (hereinafter referred to as carbodiimide-modified MDI)
And the like. These may be used alone or as a mixture of both.
【００２７】また、イソシアネート基末端プレポリマー
の原料となるポリオールとしては、ポリエステルポリオ
ールや、ポリオキシプロピレンポリオール、ポリオキシ
プロピレンオキシエチレンポリオール、ポリオキシテト
ラメチレングリコールなどのポリエーテルポリオール、
ひまし油系ポリオール、ポリブタジエン系ポリオールな
どが挙げられる。ひまし油系ポリオールとは、ひまし
油、ひまし油にさらに水酸基を導入してなる変性ポリオ
ールをいう。本発明においては、ポリエーテルポリオー
ルが好ましく、ポリオキシプロピレンポリオールがより
好ましい。また、ポリオキシプロピレンジオールとポリ
オキシプロピレントリオールの混合物も好ましく用いら
れる。その場合、そのモル比は６０〜９０／４０〜１０
が好ましい。Polyols used as raw materials for the isocyanate group-terminated prepolymer include polyester polyols and polyether polyols such as polyoxypropylene polyol, polyoxypropyleneoxyethylene polyol and polyoxytetramethylene glycol.
Castor oil-based polyols, polybutadiene-based polyols, and the like. The castor oil-based polyol refers to castor oil and a modified polyol obtained by further introducing a hydroxyl group into castor oil. In the present invention, polyether polyols are preferred, and polyoxypropylene polyols are more preferred. Further, a mixture of polyoxypropylene diol and polyoxypropylene triol is also preferably used. In that case, the molar ratio is 60 to 90/40 to 10
Is preferred.
【００２８】上記ポリオールの水酸基数は２〜４が好ま
しく、３以下、特に平均して２．５以下、さらには平均
して２．１〜２．４が好ましい。水酸基数が２未満では
硬化塗膜の高分子量化が困難になるため硬化物の機械強
度が不充分となり、４を超えると架橋密度が高くなり過
ぎて硬化物の伸び性能が悪化する。The number of hydroxyl groups of the above polyol is preferably 2 to 4, more preferably 3 or less, particularly 2.5 or less on average, and further preferably 2.1 to 2.4 on average. If the number of hydroxyl groups is less than 2, it becomes difficult to increase the molecular weight of the cured coating film, so that the mechanical strength of the cured product is insufficient. If it is more than 4, the crosslink density becomes too high and the elongation performance of the cured product deteriorates.
【００２９】また、上記ポリオールの水酸基価は、手塗
りタイプの塗膜組成物に用いられる場合、２０〜８０ｍ
ｇＫＯＨ／ｇが好ましく、４０〜７０ｍｇＫＯＨ／ｇが
特に好ましい。一方、超速硬化スプレータイプの塗膜組
成物に用いられる場合、２５〜２８０ｍｇＫＯＨ／ｇが
好ましく、３０〜１２０ｍｇＫＯＨ／ｇが特に好まし
い。水酸基数および水酸基価が上記範囲外であると、得
られる硬化塗膜の機械強度が不充分となったり、硬化塗
膜の弾性や伸びに劣る。The hydroxyl value of the above polyol is from 20 to 80 m when used in a hand-painted coating composition.
gKOH / g is preferable, and 40 to 70 mgKOH / g is particularly preferable. On the other hand, when used for a coating composition of the ultra-fast curing spray type, the amount is preferably from 25 to 280 mgKOH / g, particularly preferably from 30 to 120 mgKOH / g. When the number of hydroxyl groups and the hydroxyl value are outside the above ranges, the mechanical strength of the resulting cured coating film becomes insufficient, or the cured coating film has poor elasticity and elongation.
【００３０】また、上記ポリオールの分子量は、得られ
るプレポリマーの粘度、硬化塗膜の強度、伸び性能のバ
ランスから、水酸基当たりの分子量は２００〜７，００
０が好ましく、特に７００〜１，５００が好ましい。Further, the molecular weight of the above polyol is determined based on the balance of the viscosity of the obtained prepolymer, the strength of the cured coating film, and the elongation performance.
0 is preferable, and 700 to 1,500 is particularly preferable.
【００３１】そして、イソシアネート基末端ウレタンプ
レポリマーの原料となるポリイソシアネートとしては、
上記ポリイソシアネートなどが挙げられる。本発明にお
いては、手塗りタイプの塗膜組成物に用いられる場合、
得られるプレポリマーの粘度、硬化性、硬化塗膜の機械
強度の点からトリレンジイソシアネートが好ましく、特
に２，４−異性体の含有率が８０質量％以上であるトリ
レンジイソシアネートが好ましい。一方、超速硬化スプ
レータイプの塗膜組成物に用いられる場合、硬化性の点
からＭＤＩが好ましい。The polyisocyanate used as a raw material of the isocyanate group-terminated urethane prepolymer includes:
The above-mentioned polyisocyanate and the like are mentioned. In the present invention, when used in a hand-coated type coating composition,
Tolylene diisocyanate is preferred in view of the viscosity, curability, and mechanical strength of the cured coating film of the obtained prepolymer, and particularly preferred is tolylene diisocyanate having a 2,4-isomer content of 80% by mass or more. On the other hand, when used for a coating composition of the ultra-fast curing spray type, MDI is preferred from the viewpoint of curability.
【００３２】そして、イソシアネート基末端ウレタンプ
レポリマーのイソシアネート基含有量は、手塗りタイプ
の防水材では２〜５質量％、床材では４〜８質量％、防
食材では８〜１５質量％が好ましい。また、超速硬化ス
プレータイプの防水材では１０〜２０質量％、床材では
１５〜２５質量％、防食材では２０〜３０質量％が好ま
しい。The isocyanate group content of the isocyanate group-terminated urethane prepolymer is preferably 2 to 5% by mass for a hand-coated waterproof material, 4 to 8% by mass for a floor material, and 8 to 15% by mass for an anticorrosive material. . In addition, 10 to 20% by mass is preferable for the super-fast curing spray type waterproof material, 15 to 25% by mass for the floor material, and 20 to 30% by mass for the anticorrosive material.
【００３３】本発明のポリウレア系塗膜組成物の硬化剤
に含まれる芳香族ポリアミンとしては、４，４−メチレ
ンビス（２−クロロアニリン）、ビスメチルチオトルエ
ンジアミン、ジエチルトルエンジアミン、４，４−メチ
レンビス（３−クロロ−２，６−ジエチルアニリン）な
どが挙げられる。本発明においては、４，４−メチレン
ビス（２−クロロアニリン）、ビスメチルチオトルエン
ジアミン、ジエチルトルエンジアミンからなる群から選
ばれる１種または２種以上の混合物が好ましい。The aromatic polyamine contained in the curing agent of the polyurea-based coating composition of the present invention includes 4,4-methylenebis (2-chloroaniline), bismethylthiotoluenediamine, diethyltoluenediamine, and 4,4-methylenebis. (3-chloro-2,6-diethylaniline) and the like. In the present invention, one or a mixture of two or more selected from the group consisting of 4,4-methylenebis (2-chloroaniline), bismethylthiotoluenediamine, and diethyltoluenediamine is preferred.
【００３４】また、上記芳香族ポリアミンを比較的分子
量の高いポリオールと組み合わせて用いることにより、
適度な硬化性が得られる。By using the aromatic polyamine in combination with a polyol having a relatively high molecular weight,
Appropriate curability is obtained.
【００３５】硬化剤に用いられるポリオールの水酸基数
は２〜４が好ましく、２〜３がより好ましい。また、そ
の水酸基価は１０〜１１２ｍｇＫＯＨ／ｇが好ましく、
１６〜５６ｍｇＫＯＨ／ｇがより好ましい。また、ポリ
オールとしてはポリオキシプロピレンポリオールが好ま
しい。水酸基数が２未満では硬化塗膜の高分子量化が困
難になるため硬化性が悪化し、硬化物の機械強度が不充
分となり、水酸基数が４を超えると架橋密度が高くなり
過ぎて硬化物の伸び性能が悪化する。また、水酸基価が
１０ｍｇＫＯＨ／ｇ未満ではポリオールの粘度が高くな
り過ぎ、１１２ｍｇＫＯＨ／ｇを超えると分子量が小さ
いために硬化剤への配合量が少なくなり、その代替とし
て可塑剤の使用量が多くなるため好ましくない。The polyol used in the curing agent preferably has 2 to 4 hydroxyl groups, more preferably 2 to 3. Further, the hydroxyl value is preferably 10 to 112 mgKOH / g,
16-56 mgKOH / g is more preferred. Further, as the polyol, polyoxypropylene polyol is preferable. If the number of hydroxyl groups is less than 2, it becomes difficult to increase the molecular weight of the cured coating film, so that the curability deteriorates, and the mechanical strength of the cured product becomes insufficient. If the number of hydroxyl groups exceeds 4, the crosslink density becomes too high and the cured product becomes too hard. Elongation performance deteriorates. If the hydroxyl value is less than 10 mgKOH / g, the viscosity of the polyol becomes too high, and if it exceeds 112 mgKOH / g, the amount of the plasticizer is increased because the molecular weight is small, so that the amount of the plasticizer is increased. Therefore, it is not preferable.
【００３６】このポリオールは、水酸基数２〜４、より
好ましくは水酸基数２〜３の開始剤にプロピレンオキシ
ドを反応させて得られるものが好ましい。The polyol is preferably obtained by reacting propylene oxide with an initiator having 2 to 4 hydroxyl groups, more preferably 2 to 3 hydroxyl groups.
【００３７】また、硬化剤には、充分な硬化性を満足す
るために硬化触媒が含まれる。硬化触媒としてはウレア
・ウレタン化反応を促進する公知の触媒が使用でき、た
とえば有機酸鉛、有機酸錫、３級アミン化合物などが挙
げられる。Further, the curing agent contains a curing catalyst in order to satisfy sufficient curability. As the curing catalyst, a known catalyst that promotes a urea / urethanization reaction can be used, and examples thereof include organic acid lead, organic acid tin, and tertiary amine compounds.
【００３８】さらに、硬化剤は上記基本的成分のほか
に、充填剤、顔料、安定剤から選ばれる添加剤を含んで
いてもよい。Further, the curing agent may contain additives selected from fillers, pigments and stabilizers in addition to the above-mentioned basic components.
【００３９】充填剤としては、炭酸カルシウム、タル
ク、クレー、シリカ、カーボンなどが挙げられる。Examples of the filler include calcium carbonate, talc, clay, silica, carbon and the like.
【００４０】顔料としては、酸化クロム、酸化チタンな
どの無機顔料やフタロシアニン顔料などの有機顔料が挙
げられる。Examples of the pigment include inorganic pigments such as chromium oxide and titanium oxide, and organic pigments such as phthalocyanine pigment.
【００４１】安定剤としては、ポリウレア／ポリウレタ
ン樹脂に一般的に使用される酸化防止剤、紫外線吸収
剤、脱水剤などが挙げられる。Examples of the stabilizer include an antioxidant, an ultraviolet absorber, and a dehydrating agent generally used for polyurea / polyurethane resins.
【００４２】本発明において、ポリウレア系塗膜組成物
が実質的に溶剤を含まないとは、添加剤などに予め含ま
れる溶剤までも含まないという意味ではなく、粘度低減
を目的として添加される溶剤を含まないこと意味する。
具体的には、主剤および硬化剤中の溶剤の含有量が３質
量％以下、より好ましくは１質量％以下である。In the present invention, the fact that the polyurea-based coating composition does not substantially contain a solvent does not mean that it does not contain a solvent previously contained in an additive or the like, but a solvent added for the purpose of reducing viscosity. Does not include
Specifically, the content of the solvent in the main agent and the curing agent is 3% by mass or less, more preferably 1% by mass or less.
【００４３】本発明のポリウレア系塗膜組成物におい
て、主剤中のイソシアネート基と硬化剤中の活性水素含
有基とのモル比｛ＮＣＯ／（ＮＨ2＋ＯＨ）｝は１．０
〜１．３が好ましい。該モル比が１．０未満では充分な
硬化塗膜の機械強度が得られなかったり、塗膜表面にタ
ックが残ることがある。また、該モル比が１．３超では
過剰のイソシアネート基が水分の影響を受けて発泡しや
すくなったり、硬化塗膜が脆くなる傾向が見られる。In the polyurea-based coating composition of the present invention, the molar ratio {NCO / (NH 2 + OH)} between the isocyanate group in the main component and the active hydrogen-containing group in the curing agent is 1.0.
-1.3 is preferred. If the molar ratio is less than 1.0, sufficient mechanical strength of the cured coating film may not be obtained, or tackiness may remain on the coating film surface. If the molar ratio is more than 1.3, the excess isocyanate group tends to foam under the influence of moisture, and the cured coating film tends to become brittle.
【００４４】[0044]
【実施例】以下、実施例および比較例を挙げて本発明を
具体的に説明するが、本発明はこれらに限定されない。
なお、各例で得られた塗膜組成物は、下記に方法によ
り、防水材としての性能を評価した。EXAMPLES Hereinafter, the present invention will be described specifically with reference to Examples and Comparative Examples, but the present invention is not limited thereto.
In addition, the coating film composition obtained in each example evaluated the performance as a waterproofing material by the following method.
【００４５】＜初期粘度＞主剤と硬化剤を混合し、混合
開始から３分間後の２０℃における粘度（単位：ｍＰａ
・ｓ）を測定した。<Initial Viscosity> The main agent and the curing agent are mixed, and the viscosity at 20 ° C. after 3 minutes from the start of mixing (unit: mPa)
-S) was measured.
【００４６】＜可使時間＞２３℃、相対湿度５０％の実
験室にて、主剤と硬化剤を混合し、混合開始から１００
Ｐａ・ｓの粘度に到達するまでの時間（分）を測定し
た。可使時間が４０分間以上であれば夏場においても充
分施工できると判断した。<Working time> In a laboratory at 23 ° C. and a relative humidity of 50%, the main agent and the curing agent were mixed, and 100 hours from the start of mixing.
The time (minute) until the viscosity of Pa · s was reached was measured. If the pot life was 40 minutes or more, it was determined that the work could be performed sufficiently even in summer.
【００４７】＜可塑剤揮発性＞可塑剤５ｇを入れたシャ
ーレを１０５℃のオーブン内に３時間放置した後、取り
出して質量を測定し、残分の割合（質量％）を求めた。
９０質量％以上を目標とした。<Plasticizer Volatility> A Petri dish containing 5 g of a plasticizer was left in an oven at 105 ° C. for 3 hours, then taken out and measured for mass to determine the ratio of the residue (% by mass).
The target was 90% by mass or more.
【００４８】＜塗膜物性＞ＪＩＳ−Ａ６０２１に準拠し
て塗膜の機械物性を測定した。表中のＴｓは引張り強度
（単位：Ｎ／ｍｍ2）、Ｅは破断時の伸び（単位：％）
を示す。<Physical Properties of Coating Film> The mechanical properties of the coating film were measured according to JIS-A6021. In the table, Ts represents tensile strength (unit: N / mm 2 ), and E represents elongation at break (unit:%).
Is shown.
【００４９】実施例１ 分子量３，０００のポリオキシプロピレントリオール１
７質量部と、分子量２，０００のポリオキシプロピレン
ジオール６８質量部に、１５質量部のトリレンジイソシ
アネート（２，４−異性体８０質量％）（ＮＣＯ／ＯＨ
比＝２．０３）を反応させ、ＮＣＯ基含有率３．６質量
％のプレポリマーを得、これを主剤とした。Example 1 Polyoxypropylene triol 1 having a molecular weight of 3,000
7 parts by mass and 68 parts by mass of polyoxypropylene diol having a molecular weight of 2,000, 15 parts by mass of tolylene diisocyanate (80% by mass of 2,4-isomer) (NCO / OH
Ratio = 2.03) to obtain a prepolymer having an NCO group content of 3.6% by mass, which was used as a main component.
【００５０】４，４’−メチレンビス（２−クロロアニ
リン）７．３０質量部を溶融したものを、分子量２，０
００のポリオキシプロピレンジオール２１．０４質量部
に溶解してなる溶融混合液に、大豆油をメタノールでエ
ステル交換したモノカルボン酸メチルエステル混合物
（２０℃における粘度７．９ｍＰａ・ｓ）１２．６６質
量部、炭酸カルシウム５５質量部、顔料ペースト３質量
部および２−エチルヘキサン酸鉛（鉛含有量２４質量
％）１質量部を混合した液を硬化剤とした。A mixture of 7.30 parts by mass of 4,4′-methylenebis (2-chloroaniline) was melted to obtain a polymer having a molecular weight of 2,0.
12.66 mass of a monocarboxylic acid methyl ester mixture (viscosity at 20 ° C. 7.9 mPa · s) obtained by transesterifying soybean oil with methanol in a molten mixture obtained by dissolving 21.04 parts by mass of polyoxypropylene diol No. 00 , A liquid obtained by mixing 55 parts by mass of calcium carbonate, 3 parts by mass of a pigment paste, and 1 part by mass of lead 2-ethylhexanoate (lead content: 24% by mass) was used as a curing agent.
【００５１】そして、主剤／硬化剤の質量比＝１／１
｛ＮＣＯ／（ＮＨ2＋ＯＨ）比＝１．１｝の配合割合で
防水材として使用した。Then, the mass ratio of the main agent / curing agent = 1/1
A {NCO / (NH 2 + OH) ratio = 1.1} compounding ratio was used as a waterproof material.
【００５２】実施例２ 実施例１と同じプレポリマーを主剤とした。Example 2 The same prepolymer as in Example 1 was used as the main ingredient.
【００５３】４，４’−メチレンビス（２−クロロアニ
リン）９．２質量部を溶融したものを、分子量１０，０
００のポリオキシプロピレントリオール２２．８質量部
に溶解してなる溶融混合液に、糠油をメタノールでエス
テル交換したモノカルボン酸メチルエステル混合物（２
０℃における粘度５．５ｍＰａ・ｓ）１２質量部、炭酸
カルシウム５２質量部、顔料ペースト３質量部および２
−エチルヘキサン酸鉛（鉛含有量２４質量％）１質量部
を混合した液を硬化剤とした。9.2 parts by mass of 4,4'-methylenebis (2-chloroaniline) was melted to obtain a polymer having a molecular weight of 10,0.
In a molten mixed solution obtained by dissolving 22.8 parts by mass of polyoxypropylene triol No. 00, a monocarboxylic acid methyl ester mixture (2) obtained by transesterifying bran oil with methanol.
Viscosity at 0 ° C. 5.5 mPa · s) 12 parts by mass, calcium carbonate 52 parts by mass, pigment paste 3 parts by mass and 2 parts by mass
A liquid obtained by mixing 1 part by mass of lead ethylhexanoate (lead content: 24% by mass) was used as a curing agent.
【００５４】そして、主剤／硬化剤の質量比＝１／１
｛ＮＣＯ／（ＮＨ2＋ＯＨ）比＝１．１｝の配合割合で
防水材として使用した。Then, the mass ratio of the main agent / curing agent = 1/1
A {NCO / (NH 2 + OH) ratio = 1.1} compounding ratio was used as a waterproof material.
【００５５】実施例３ 実施例１と同じプレポリマーを主剤とした。Example 3 The same prepolymer as in Example 1 was used as the main ingredient.
【００５６】ビスメチルチオトルエンジアミン［３，５
−ビス（メチルチオ）−２，４−トルエンジアミンおよ
び３，５−ビス（メチルチオ）−２，６−トルエンジア
ミンの混合物］４．２３質量部、分子量５，０００のポ
リオキシプロピレントリオール７．３２質量部の混合液
に、なたね油をメタノールでエステル交換したモノカル
ボン酸メチルエステル混合物（２０℃における粘度７．
７ｍＰａ・ｓ）１９．４５質量部、炭酸カルシウム６５
質量部、顔料ペースト３質量部、２−エチルヘキサン酸
鉛（鉛含有量２４質量％）１質量部を混合した液を硬化
剤とした。Bismethylthiotoluenediamine [3,5
Mixture of -bis (methylthio) -2,4-toluenediamine and 3,5-bis (methylthio) -2,6-toluenediamine] 4.23 parts by mass, 7.32 mass of polyoxypropylene triol having a molecular weight of 5,000 Part of the mixture was mixed with a monocarboxylic acid methyl ester mixture obtained by transesterifying rapeseed oil with methanol (viscosity at 20 ° C. 7.
7 mPa · s) 19.45 parts by mass, calcium carbonate 65
A liquid obtained by mixing parts by mass, 3 parts by mass of a pigment paste, and 1 part by mass of lead 2-ethylhexanoate (lead content: 24% by mass) was used as a curing agent.
【００５７】そして、主剤／硬化剤の質量比＝１／１
｛ＮＣＯ／（ＮＨ2＋ＯＨ）比＝１．１｝の配合割合で
防水材として使用した。Then, the mass ratio of the main agent / curing agent = 1/1
A {NCO / (NH 2 + OH) ratio = 1.1} compounding ratio was used as a waterproof material.
【００５８】実施例４ 分子量２，０００のポリオキシプロピレンジオール５４
質量部、分子量４００のポリオキシプロピレンジオール
１５質量部、および実施例１と同じモノカルボン酸メチ
ルエステル混合物５質量部に、２６質量部のトリレンジ
イソシアネート（２，４−異性体８０質量％）（ＮＣＯ
／ＯＨ比＝２．３２）を反応させ、ＮＣＯ基含有率７．
１質量％のプレポリマーを得、これを主剤とした。Example 4 Polyoxypropylene diol 54 having a molecular weight of 2,000
To 15 parts by mass of polyoxypropylene diol having a molecular weight of 400 and 5 parts by mass of the same monocarboxylic acid methyl ester mixture as in Example 1, 26 parts by mass of tolylene diisocyanate (2,4-isomer 80% by mass) ( NCO
/ OH ratio = 2.32) to give an NCO group content of 7.
1% by mass of a prepolymer was obtained, which was used as a main ingredient.
【００５９】４，４’−メチレンビス（２−クロロアニ
リン）１２質量部を溶融したものと分子量２，０００の
ポリオキシプロピレンジオール１１質量部の混合液に、
実施例１と同じモノカルボン酸メチルエステル混合物１
６．７質量部、炭酸カルシウム５５質量部、顔料ペース
ト５質量部および２−エチルヘキサン酸鉛（鉛含有量２
４質量％）０．３質量部を混合した液を硬化剤とした。A mixed solution of 12 parts by mass of 4,4'-methylenebis (2-chloroaniline) and 11 parts by mass of polyoxypropylene diol having a molecular weight of 2,000 was added to
The same monocarboxylic acid methyl ester mixture 1 as in Example 1
6.7 parts by mass, calcium carbonate 55 parts by mass, pigment paste 5 parts by mass and lead 2-ethylhexanoate (lead content 2
A liquid obtained by mixing 0.3 parts by mass (4% by mass) was used as a curing agent.
【００６０】そして、主剤／硬化剤の質量比＝１／１．
５｛ＮＣＯ／（ＮＨ2＋ＯＨ）比＝１．１｝の配合割合
で防水材として使用した。Then, the mass ratio of the main agent / curing agent = 1/1.
It was used as a waterproofing material at a mixing ratio of 5 {NCO / (NH 2 + OH) ratio = 1.1}.
【００６１】実施例５ 分子量２，０００のポリオキシプロピレンジオール４８
質量部、および実施例１と同じモノカルボン酸メチルエ
ステル混合物１５質量部に、３３質量部の４，４’−ジ
フェニルメタンジイソシアネートと４質量部のカルボジ
イミド変性ＭＤＩ（ＮＣＯ／ＯＨ比＝６．０８）を反応
させ、ＮＣＯ基含有率１０．３質量％のプレポリマーを
得、これを主剤とした。Example 5 Polyoxypropylene diol 48 having a molecular weight of 2,000
To 15 parts by mass of the same monocarboxylic acid methyl ester mixture as in Example 1, 33 parts by mass of 4,4'-diphenylmethane diisocyanate and 4 parts by mass of carbodiimide-modified MDI (NCO / OH ratio = 6.08) were added. The reaction was carried out to obtain a prepolymer having an NCO group content of 10.3% by mass, which was used as a main ingredient.
【００６２】ジエチルトルエンジアミン１２質量部と分
子量２，０００のポリオキシプロピレンジオール８８質
量部、および２−エチルヘキサン酸と１，２−ジメチル
−イミダゾールとの塩０．５質量部の混合液を硬化剤と
した。A mixture of 12 parts by mass of diethyltoluenediamine, 88 parts by mass of polyoxypropylene diol having a molecular weight of 2,000, and 0.5 parts by mass of a salt of 2-ethylhexanoic acid and 1,2-dimethyl-imidazole is cured. Agent.
【００６３】そして、主剤／硬化剤の容量比＝１／１
（ＮＣＯ／ＯＨ比＝約１．０３）で防水材としてスプレ
ー吹きした。Then, the volume ratio of the main agent / curing agent = 1/1
(NCO / OH ratio = about 1.03) and sprayed as a waterproof material.
【００６４】比較例１ 実施例１において、可塑剤としてモノカルボン酸メチル
エステル混合物の代わりにフタル酸ジオクチル（２０℃
における粘度６０ｍＰａ・ｓ）７．６６質量部を用い、
溶剤としてキシレン５質量部を用いた以外は同様の組成
で防水材として使用した。Comparative Example 1 In Example 1, dioctyl phthalate (20 ° C.) was used in place of the mixture of methyl monocarboxylate as a plasticizer.
Viscosity 60 mPa · s) using 7.66 parts by weight of,
The same composition was used as a waterproof material except that 5 parts by mass of xylene was used as a solvent.
【００６５】比較例２ 実施例１において、可塑剤としてモノカルボン酸メチル
エステル混合物の代わりにフタル酸ジオクチル（２０℃
における粘度６０ｍＰａ・ｓ）１２．６６質量部を用い
た以外は同様の組成で防水材として使用した。Comparative Example 2 In Example 1, dioctyl phthalate (20 ° C.) was used in place of the mixture of methyl monocarboxylate as a plasticizer.
The viscosity was 60 mPa · s) and 12.66 parts by mass was used, and the same composition was used as a waterproof material.
【００６６】比較例３ 実施例１において、可塑剤としてモノカルボン酸メチル
エステル混合物の代わりにアジピン酸ジオクチル（２０
℃における粘度１４ｍＰａ・ｓ）１２．６６質量部を用
いた以外は同様の組成で防水材として使用した。Comparative Example 3 In Example 1, dioctyl adipate (20) was used as a plasticizer in place of the mixture of methyl monocarboxylate.
The same composition was used as a waterproof material except that 12.66 parts by mass (viscosity at 14 ° C. 14 mPa · s) was used.
【００６７】比較例４ 実施例１において、可塑剤としてモノカルボン酸メチル
エステル混合物の代わりに２塩基酸エステルの混合物
（グルタル酸ジメチル６６％、アジピン酸ジメチル１７
％、コハク酸ジメチル１７％）（２０℃における粘度
４．８ｍＰａ・ｓ）１２．６６質量部を用いた以外は同
様の組成で防水材として使用した。Comparative Example 4 In Example 1, a mixture of dibasic acid esters (dimethyl glutarate 66%, dimethyl adipate 17) was used in place of the methyl monocarboxylate mixture as the plasticizer.
%, Dimethyl succinate 17%) (viscosity at 20 ° C .: 4.8 mPa · s) Except for using 12.66 parts by mass, the same composition was used as a waterproof material.
【００６８】[0068]
【表１】 [Table 1]
【００６９】表１から、可塑剤として特定のモノカルボ
ン酸メチルエステルを用いた塗膜組成物（実施例１〜
５）は、溶剤を用いなくても充分低粘度で、充分な可使
時間を有しており、また、その硬化塗膜の機械物性も優
れていることが分かる。From Table 1, it can be seen that a coating composition using a specific monocarboxylic acid methyl ester as a plasticizer (Examples 1 to 3)
It can be seen that 5) has a sufficiently low viscosity without using a solvent, has a sufficient pot life, and has excellent mechanical properties of the cured coating film.
【００７０】[0070]
【発明の効果】以上説明したように、本発明によれば、
充分低粘度で溶剤を用いなくても作業性がよく、常温で
硬化し、その硬化性、硬化後の塗膜外観、機械強度およ
びトップコートの接着性に優れたポリウレア系塗膜組成
物を提供できる。このポリウレア系塗膜組成物は、防水
材、床材、防蝕材などの各種用途に適したものである。As described above, according to the present invention,
Provide polyurea-based coating composition with sufficiently low viscosity, good workability even without using a solvent, cured at room temperature, and excellent in its curability, cured coating appearance, mechanical strength, and topcoat adhesion. it can. The polyurea-based coating composition is suitable for various uses such as a waterproof material, a floor material, and a corrosion-resistant material.
フロントページの続き Ｆターム(参考） 4J034 BA02 CA15 CA31 CB02 CC10 CC12 CC52 CC61 CC62 CC65 CC67 CD08 CD13 DA01 DB04 DC50 DG04 HA01 HA07 HC12 HC61 HC64 HC71 HC73 JA42 QA03 RA07 4J038 DG061 JA56 KA10 NA01 NA03 NA11 NA12 NA23 PA06 PA18 PB05 Continued on the front page F-term (reference) 4J034 BA02 CA15 CA31 CB02 CC10 CC12 CC52 CC61 CC62 CC65 CC67 CD08 CD13 DA01 DB04 DC50 DG04 HA01 HA07 HC12 HC61 HC64 HC71 HC73 JA42 QA03 RA07 4J038 DG061 JA56 KA10 NA01 NA03 NA11 NA12 NA05 PA06
Claims (5)
と、芳香族ポリアミンを含む硬化剤とを含有するポリウ
レア系塗膜組成物であって、炭素数１２〜２４の脂肪族
モノカルボン酸と炭素数１〜１０のモノオールとのエス
テルの１種または２種以上からなる、２０℃における粘
度が２０ｍＰａ・ｓ以下の可塑剤を含有し、かつ実質的
に溶剤を含まないことを特徴とする、ポリウレア系塗膜
組成物。1. A polyurea-based coating composition comprising a main agent containing an isocyanate group-containing compound and a curing agent containing an aromatic polyamine, wherein the composition comprises an aliphatic monocarboxylic acid having 12 to 24 carbon atoms and 1 carbon atom. A polyurea-based plasticizer comprising a plasticizer having a viscosity at 20 ° C. of 20 mPa · s or less and containing substantially no solvent, comprising one or more esters of an ester with a monool of 10 to 10 Coating composition.
リオキシプロピレンポリオールと、トリレンジイソシア
ネートまたは４，４’−ジフェニルメタンジイソシアネ
ートとを反応させて得られるイソシアネート基末端ウレ
タンプレポリマーである、請求項１に記載のポリウレア
系塗膜組成物。2. The isocyanate group-containing compound according to claim 1, wherein the isocyanate group-containing compound is an isocyanate group-terminated urethane prepolymer obtained by reacting a polyoxypropylene polyol with tolylene diisocyanate or 4,4′-diphenylmethane diisocyanate. Polyurea-based coating composition.
チレンビス（２−クロロアニリン）、ビスメチルチオト
ルエンジアミンおよびジエチルトルエンジアミンからな
る群から選ばれた１種または２種以上の混合物である、
請求項１または２に記載のポリウレア系塗膜組成物。3. The aromatic polyamine is one or a mixture of two or more kinds selected from the group consisting of 4,4′-methylenebis (2-chloroaniline), bismethylthiotoluenediamine and diethyltoluenediamine.
The polyurea-based coating composition according to claim 1.
２〜１５質量％含有する、請求項１〜３のいずれか一つ
に記載のポリウレア系塗膜組成物。4. The polyurea-based coating composition according to claim 1, wherein the plasticizer is contained in an amount of 2 to 15% by mass based on the total amount of the coating composition.
タイプまたは超速硬化スプレータイプの防水材、床材ま
たは防食材である請求項１〜４のいずれか一つに記載の
ポリウレア系塗膜組成物。5. The polyurea-based coating film according to claim 1, wherein the polyurea-based coating film composition is a hand-coated or ultra-fast-curing spray-type waterproofing material, flooring material, or anticorrosion material. Composition.
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| JP2001296054A JP5044879B2 (en) | 2000-09-29 | 2001-09-27 | Polyurea paint composition |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100860009B1 (en) * | 2006-12-13 | 2008-09-25 | (주)아텍스 | A method of manufacturing high adhesive polyurea coating agents and a method of coating high adhesive polyurea |
| JP2010083063A (en) * | 2008-10-01 | 2010-04-15 | Aica Kogyo Co Ltd | Corrosionproof layer structure and corrosion protecting method |
| JP2010144401A (en) * | 2008-12-18 | 2010-07-01 | Aica Kogyo Co Ltd | Resin composition for preventing concrete piece exfoliation, and construction method |
| JP2013139559A (en) * | 2011-12-07 | 2013-07-18 | I C K Kk | Two-pack, environmental-responsive urethane waterproof material composition |
| KR101307351B1 (en) * | 2013-02-05 | 2013-09-11 | 한국건설생활환경시험연구원 | Post-cure type polyurea composition and method for waterproof and anticorrosion of concrete structures using the same |
| JP2014031503A (en) * | 2012-07-13 | 2014-02-20 | I C K Kk | Two-part type urethane waterproof material composition |
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|---|---|---|---|---|
| JP2000265408A (en) * | 1999-03-15 | 2000-09-26 | Takeda Chem Ind Ltd | Paved surface overcoating method and paving material |
-
2001
- 2001-09-27 JP JP2001296054A patent/JP5044879B2/en not_active Expired - Fee Related
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|---|---|---|---|---|
| JP2000265408A (en) * | 1999-03-15 | 2000-09-26 | Takeda Chem Ind Ltd | Paved surface overcoating method and paving material |
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| JP2010144401A (en) * | 2008-12-18 | 2010-07-01 | Aica Kogyo Co Ltd | Resin composition for preventing concrete piece exfoliation, and construction method |
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