JPH0559300A - Coating composition - Google Patents
Coating compositionInfo
- Publication number
- JPH0559300A JPH0559300A JP3244907A JP24490791A JPH0559300A JP H0559300 A JPH0559300 A JP H0559300A JP 3244907 A JP3244907 A JP 3244907A JP 24490791 A JP24490791 A JP 24490791A JP H0559300 A JPH0559300 A JP H0559300A
- Authority
- JP
- Japan
- Prior art keywords
- coating composition
- surfactant
- coating
- alcohol
- colloidal silica
- 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、コーティング組成物に
関し、更に詳しくは、合成樹脂フィルム、シート、板お
よびガラスなどの透明基材の表面に塗布して、薄くて、
均一で、透明で、耐熱性、耐候性、耐久性に優れ、しか
も、長期にわたって防曇効果を持続する塗膜を形成する
ことのできるコーティング組成物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating composition, and more specifically, it is applied to the surface of a transparent substrate such as a synthetic resin film, a sheet, a plate and a glass to form a thin film
The present invention relates to a coating composition which is uniform, transparent, excellent in heat resistance, weather resistance and durability and capable of forming a coating film having a long-lasting antifogging effect.
【０００２】[0002]
【従来技術およびその問題点】従来、種々の用途に適し
たコーティング組成物が提案されており、表面塗布型の
防曇剤組成物としては、特公昭６３−４５４３２号公報
および特公平２−１８３５７号公報等により、コロイダ
ルシリカと界面活性剤を含有する防曇剤組成物が知られ
ている。2. Description of the Related Art Conventionally, coating compositions suitable for various uses have been proposed, and surface-coating type antifogging agent compositions are disclosed in Japanese Examined Patent Publication No. 63-45432 and Japanese Examined Patent Publication No. 2-18357. An antifogging agent composition containing colloidal silica and a surfactant is known from Japanese Patent Laid-Open Publication No. 2003-242242.
【０００３】しかしながら、前記の防曇剤組成物は、塗
布して塗膜を形成する際の塗工性、形成された塗膜の透
明性、防曇性、防曇効果の持続性などの点で必ずしも満
足のいくものではなかった。However, the above antifogging agent composition has the following problems in terms of coatability when applied to form a coating film, transparency of the formed coating film, antifogging property, and persistence of antifogging effect. So it was not always satisfactory.
【０００４】[0004]
【発明の目的】本発明は、熱交換機フィン用、包装用、
農業用、鏡、窓（家庭、ビル建築物、車両、ショーケー
ス、計器）、ディスプレー画面、額縁などに使用される
透明な合成樹脂フィルム、シート、板およびガラスなど
の基材の表面に、防曇性、耐熱性、耐候性、防曇効果の
持続性などに優れた塗膜を形成することのできるコーテ
ィング組成物を提供することを目的とする。SUMMARY OF THE INVENTION The present invention is for heat exchanger fins, packaging,
For the surface of substrates such as transparent synthetic resin films, sheets, plates and glass used for agriculture, mirrors, windows (homes, building structures, vehicles, showcases, measuring instruments), display screens, picture frames, etc. An object of the present invention is to provide a coating composition capable of forming a coating film excellent in fog resistance, heat resistance, weather resistance, durability of antifogging effect and the like.
【０００５】また、本発明の他の目的は、塗布して塗膜
を形成する際の塗布加工が容易であり、経時変化に対し
ても安定なコーティング組成物で、合成樹脂の表面に塗
布して帯電防止能、ブロッキング防止能などを付与する
コーティング組成物を提供することにある。Another object of the present invention is to provide a coating composition which is easy to apply when forming a coating film and is stable against aging, and is applied to the surface of a synthetic resin. Another object of the present invention is to provide a coating composition that imparts antistatic ability, antiblocking ability, and the like.
【０００６】[0006]
【発明の概要】而して、本発明に係るコーティング組成
物は、 （Ａ）有機溶媒を分散媒とするコロイダルシリカと、 （Ｂ）フルオロアルキル基を有する界面活性剤とからな
ることを特徴とする。SUMMARY OF THE INVENTION The coating composition according to the present invention is characterized by comprising (A) colloidal silica having an organic solvent as a dispersion medium, and (B) a surfactant having a fluoroalkyl group. To do.
【０００７】[0007]
【発明の具体的な説明】以下に本発明について具体的に
説明する。本発明における（Ａ）成分の有機溶媒を分散
媒とするコロイダルシリカは、シリカのコロイド粒子
が、メチルアルコール、エチルアルコール、ｎ−プロピ
ルアルコール、イソプロピルアルコール、ｎ−ブチルア
ルコール、酢酸アミルアルコール、エチレングリコー
ル、モノエチルエーテル、ｎ−メチルピロリドン、アセ
トン、メチルエチルケトン、ジメチルホルムアミド、な
どの有機溶媒に分散したゾルであり、通常、オルガノシ
リカゾルと呼ばれているものである。DETAILED DESCRIPTION OF THE INVENTION The present invention will be specifically described below. In the colloidal silica using the organic solvent as the component (A) in the present invention, colloidal particles of silica are methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, amyl alcohol acetate, ethylene glycol. , Monoethyl ether, n-methylpyrrolidone, acetone, methyl ethyl ketone, dimethylformamide, and other sol dispersed in an organic solvent, which is usually called an organosilica sol.
【０００８】オルガノシリカゾルは、ＳｉＯ2として５
〜４０wt％の濃度範囲のものが一般に市販されている
が、特に、ｐＨが５以下の酸性オルガノシリカゾルは、
（Ｂ）成分である界面活性剤と混合した場合、長期間に
わたって安定であるので好ましい。この様なオルガノシ
リカゾルは、例えば、本発明の出願人が先に出願した特
公平２−１０８７号に記載した方法により、水を分散媒
とする酸性のシリカゾルから製造することができる。 （Ａ）成分のコロイダルシリカの平均粒子径は、通常の
コロイド粒子の範囲内にあるものは使用可能であるが、
得られる塗膜の透明性の観点から５〜３０ｎｍの範囲の
ものが望ましい。The organosilica sol has a SiO 2 content of 5
Those having a concentration range of up to 40 wt% are generally commercially available. Particularly, acidic organosilica sol having a pH of 5 or less is
When mixed with the surfactant as the component (B), it is preferable because it is stable for a long period of time. Such an organosilica sol can be produced from an acidic silica sol containing water as a dispersion medium, for example, by the method described in Japanese Patent Publication No. 2-1087 filed previously by the applicant of the present invention. The colloidal silica as the component (A) having an average particle diameter within the range of ordinary colloidal particles can be used,
From the viewpoint of transparency of the obtained coating film, the coating film having a thickness in the range of 5 to 30 nm is desirable.
【０００９】次に（Ｂ）成分のフルオロアルキル基を有
する界面活性剤としては、フルオロアルキル基を有する
非イオン性、アニオン性、カチオン性および両性界面活
性剤がいずれも使用可能であり、具体的には、例えば、
パーフルオロアルキルカルボン酸塩、パーフルオロアル
キルリン酸エステル、パーフルオロアルキルトリメチル
アンモニウム塩、パーフルオロアルキルペタイン、パー
フルオロアルキルアミンオキサイド、パーフルオロアル
キルエチレンオキサイド付加物などを挙げることができ
る。特に、パーフルオロアルキルリン酸エステルとパー
フルオロアルキルペタインの界面活性剤は、得られるコ
ーティング組成物が長期間にわたって安定であるので好
ましい。As the surfactant having a fluoroalkyl group as the component (B), any of nonionic, anionic, cationic and amphoteric surfactants having a fluoroalkyl group can be used. For example,
Examples thereof include perfluoroalkylcarboxylic acid salts, perfluoroalkylphosphoric acid esters, perfluoroalkyltrimethylammonium salts, perfluoroalkylpetines, perfluoroalkylamine oxides, and perfluoroalkylethylene oxide adducts. In particular, a surfactant of perfluoroalkyl phosphate and perfluoroalkyl petaine is preferable because the resulting coating composition is stable for a long period of time.
【００１０】本発明のコーティング組成物において、
（Ａ）成分の有機溶媒を分散媒とするコロイダルシリカ
（ＳｉＯ2として）と、（Ｂ）成分のフルオロアルキル
基を有する界面活性剤（固形分として）との合計量に対
して、界面活性剤（固形分として）の量が、０．１〜４
０wt％、好ましくは０．２〜１０wt％の範囲にあること
が望ましい。 （Ｂ）成分の界面活性剤の量が４０wt％より多い場合に
は、得られる塗膜の耐熱性、耐候性、耐久性が乏しく、
防曇効果の持続性が短くなる傾向を示し、一方、界面活
性剤の量が０．１wt％より少ない場合には、得られる塗
膜の防曇性が低下するので好ましくない。なお、本発明
のコーティング組成物では、前記（Ａ）（Ｂ）成分以外
の成分も含有することができる。In the coating composition of the present invention,
The surfactant is used with respect to the total amount of the colloidal silica (as SiO 2 ) having the organic solvent as the component (A) as a dispersion medium and the fluoroalkyl group-containing surfactant (as the solid content) as the component (B). The amount (as solids) is 0.1-4
It is desirable to be in the range of 0 wt%, preferably 0.2 to 10 wt%. When the amount of the component (B) surfactant is more than 40 wt%, the resulting coating film has poor heat resistance, weather resistance and durability,
When the amount of the surfactant is less than 0.1 wt%, the antifogging property of the obtained coating film is lowered, which is not preferable. The coating composition of the present invention may contain components other than the above-mentioned components (A) and (B).
【００１１】本発明におけるコーティング組成物では、
（Ａ）成分のコロイダルシリカの分散媒である有機溶媒
と同一あるいは異なる有機溶媒を、希釈剤として含有す
ることができる。希釈剤の量は特に限定されるものでは
ないが、コーティング組成物中の（Ａ）成分のシリカと
（Ｂ）成分の界面活性剤の合計量の固形分濃度が、４０
wt％以下、好ましくは５〜２０wt％の範囲に調整され
る。なお、コーティング組成物は、使用に際して更に適
当な濃度に希釈してもよい。In the coating composition of the present invention,
An organic solvent which is the same as or different from the organic solvent which is the dispersion medium of the colloidal silica as the component (A) can be contained as a diluent. Although the amount of the diluent is not particularly limited, the solid content concentration of the total amount of the silica as the component (A) and the surfactant as the component (B) in the coating composition is 40% or less.
It is adjusted to be not more than wt%, preferably in the range of 5 to 20 wt%. In addition, the coating composition may be further diluted to an appropriate concentration before use.
【００１２】また、このコーティング組成物では、水分
は少ない方が望ましいのであるが、コーティング組成物
中の水分は、Ｈ2Ｏ／ＳｉＯ2重量比で４、好ましくは１
まで許容される。コーティング組成物中の水分の量がＨ
2Ｏ／ＳｉＯ2重量比で４より多くなると、塗布して塗膜
を形成する際に均一な塗膜が形成されないなどの難点が
生じる。In this coating composition, it is desirable that the water content be low, but the water content in the coating composition is 4, preferably 1 in H 2 O / SiO 2 weight ratio.
Is allowed up to. The amount of water in the coating composition is H
If the weight ratio of 2 O / SiO 2 is more than 4, there arises a problem that a uniform coating film is not formed when the coating film is formed by coating.
【００１３】本発明のコーティング組成物は、例えば
（Ｂ）成分のフルオロアルキル基を有する界面活性剤
を、メチルアルコール、エチルアルコール、ｎ−プロピ
ルアルコール、イソプロピルアルコール、ｎ−ブチルア
ルコールなどの前述の分散媒として使用される有機溶媒
で希釈して、又は、希釈することなしに、（Ａ）成分の
有機溶媒を分散媒とするコロイドシリカと混合して調整
される。In the coating composition of the present invention, for example, the fluoroalkyl group-containing surfactant of the component (B) is dispersed in the above-mentioned dispersion of methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol and the like. It is prepared by diluting with an organic solvent used as a medium or, without diluting, mixing the organic solvent of the component (A) with colloidal silica as a dispersion medium.
【００１４】そして、本発明のコーティング組成物は、
熱交換機フィン用、包装用、農業用その他各種鏡、窓な
どに使用されるポリエチレン、ポリプロピレンなどのオ
レフィン系樹脂、ポリ塩化ビニル樹脂、ポリエステル樹
脂、ポリカーボネート樹脂、ポリメチルメタクリレート
樹脂、四フッ化エチレン系樹脂などの含フッ素樹脂など
の合成樹脂フィルム、シート、板およびガラスなどの透
明基材の表面に、ローラータッチ法、バーコーター法、
スプレー法、浸漬法、ハケ塗り法などの通常の塗布方法
で塗布加工することができる。本発明のコーティング組
成物は、特に防曇剤としての用途に優れているが、帯電
防止剤、ブロッキング防止剤など種々の用途にも使用可
能である。The coating composition of the present invention comprises
Heat exchanger fins, packaging, agricultural and other various mirrors, olefin resins such as polypropylene used for windows, polypropylene, polyvinyl chloride resin, polyester resin, polycarbonate resin, polymethylmethacrylate resin, tetrafluoroethylene resin Roller touch method, bar coater method, synthetic resin film such as fluorine-containing resin such as resin, sheet, plate, glass and transparent substrate surface
The coating can be performed by a usual coating method such as a spray method, a dipping method, and a brush coating method. The coating composition of the present invention is particularly excellent in use as an antifogging agent, but can also be used in various uses such as an antistatic agent and an antiblocking agent.
【００１５】[0015]
【実施例】以下に実施例を示し、本発明を更に具体的に
説明する。実施例−１ 水を分散媒とするシリカゾル（ＳｉＯ2濃度２０wt％、
平均粒子径１１ｎｍ、Ａｌ2Ｏ3／ＳｉＯ2＝０．００２
モル比）１０００ｍｌと、イソプロピルアルコール（純
度９９％以上）１０００ｍｌをよく混合した後、限外濾
過膜にて濾過を行い、濾液が１０００ｍｌに達したと
き、さらに母液に新たなイソプロピルアルコール１００
０ｍｌを添加した。その後、同様に濾過を行い濾液量１
０００ｍｌを採取した。この操作を全部で６回繰り返し
行い、シリカ濃度３０wt％のイソプロピルアルコールを
分散媒とするコロイダルシリカを得た。EXAMPLES The present invention will be described more concretely with reference to the following examples. Example 1 Silica sol having water as a dispersion medium (SiO 2 concentration 20 wt%,
Average particle size 11 nm, Al 2 O 3 / SiO 2 = 0.002
(Mole ratio) 1000 ml and 1000 ml of isopropyl alcohol (purity 99% or more) were mixed well, and then filtered through an ultrafiltration membrane. When the filtrate reached 1000 ml, 100 ml of fresh isopropyl alcohol was added to the mother liquor.
0 ml was added. Then, perform filtration in the same manner, and filtrate 1
000 ml was collected. This operation was repeated 6 times in total to obtain colloidal silica having a silica concentration of 30 wt% as the dispersion medium.
【００１６】このゾル中の水分濃度は２．７wt％、ゾル
のｐＨは２．１、粘度は５．６c.p.であった。このイソ
プロピルアルコールを分散媒とするコロイダルシリカ３
３．３５ｇと、パーフルオロアルキルリン酸エステル界
面活性剤（旭硝子（株）製；サーフロンＳ−１１２、固
形分濃度１５％）０．２５ｇをイソプロピルアルコール
１６．６ｇで希釈した溶液とを混合してコーティング組
成物を調製した。The water concentration in this sol was 2.7 wt%, the sol had a pH of 2.1 and a viscosity of 5.6 c.p. Colloidal silica 3 using this isopropyl alcohol as a dispersion medium
3.35 g was mixed with a solution of 0.25 g of perfluoroalkyl phosphate ester surfactant (Asahi Glass Co., Ltd .; Surflon S-112, solid content concentration 15%) diluted with 16.6 g of isopropyl alcohol. A coating composition was prepared.
【００１７】実施例−２ 実施例−１において、コロイダルシリカの量を３２．４
ｇとし、界面活性剤の量を１．０ｇとした他は、全く同
様にして、コーティング組成物を調製した。 Example-2 In Example-1, the amount of colloidal silica was 32.4.
g, and a coating composition was prepared in exactly the same manner except that the amount of the surfactant was 1.0 g.
【００１８】実施例−３ 実施例−１において、界面活性剤１０ｇをイソプロピル
アルコール６．６ｇで希釈して使用した他は、全く同様
にして、コーティング組成物を調製した。 Example-3 A coating composition was prepared in exactly the same manner as in Example-1, except that 10 g of the surfactant was diluted with 6.6 g of isopropyl alcohol and used.
【００１９】実施例−４ 実施例−１と同様の方法でエチルアルコールを分散媒と
するＳｉＯ2濃度２０wt％のコロイダルシリカを調製し
た。このゾル中の水分濃度は１．６wt％、ゾルのｐＨは
２．５、粘度は１．４c.p.、コロイド粒子の平均粒子径
は２５ｎｍであった。このエチルアルコールを分散媒と
するコロイダルシリカ３２．４ｇと、パーフルオロアル
キルペタイン界面活性剤（旭硝子（株）製；サーフロン
Ｓ−１３２、固形分濃度３０％）０．２５ｇをイソプロ
ピルアルコール１７．３５ｇで希釈した溶液とを混合し
てコーティング組成物を調製した。 Example-4 In the same manner as in Example-1, colloidal silica having a SiO 2 concentration of 20 wt% was prepared using ethyl alcohol as a dispersion medium. The water concentration in this sol was 1.6 wt%, the pH of the sol was 2.5, the viscosity was 1.4 c.p., and the average particle diameter of the colloid particles was 25 nm. 32.4 g of this colloidal silica having ethyl alcohol as a dispersion medium, 0.25 g of a perfluoroalkylpetine surfactant (Asahi Glass Co., Ltd .; Surflon S-132, solid content concentration 30%) and 17.35 g of isopropyl alcohol. A coating composition was prepared by mixing with the solution diluted with.
【００２０】比較例−１ 実施例−１において、イソプロピルアルコールを分散媒
とするコロイダルシリカの量を３３．３５ｇとし、アク
リル系界面活性剤（共栄社油脂化学（株）製；デスタン
ト−ＡＧ−７、固形分濃度３６％）０．０８ｇをイソプ
ロピルアルコール１６．６ｇで希釈した溶液を用いた以
外は、実施例−１と同様にして、コーティング組成物を
調製した。 Comparative Example-1 In Example-1, the amount of colloidal silica containing isopropyl alcohol as a dispersion medium was 33.35 g, and an acrylic surfactant (manufactured by Kyoeisha Oil and Fat Chemical Co., Ltd .; Destant-AG-7, A coating composition was prepared in the same manner as in Example 1 except that a solution obtained by diluting 0.08 g of a solid content concentration of 36%) with 16.6 g of isopropyl alcohol was used.
【００２１】比較例−２ 比較例−１において、アクリル系界面活性剤の代わり
に、高級アルコールリン酸エステル塩界面活性剤（共栄
社油脂化学（株）製；デスタント−ＡＰ−１、固形分濃
度２３％）０．２５ｇを用いた他は、全く同様にして、
コーティング組成物を調製した。 Comparative Example-2 In Comparative Example-1, a higher alcohol phosphoric acid ester salt surfactant (manufactured by Kyoeisha Oil and Fat Chemical Co., Ltd .; Destant-AP-1, solid content concentration 23) was used instead of the acrylic surfactant. %) 0.25 g was used in exactly the same way,
A coating composition was prepared.
【００２２】比較例−３ 有機溶媒を分散媒とするコロイダルシリカの代りに、実
施例−１における水を分散媒とするシリカゾル（ＳｉＯ
2濃度２０wt％、平均粒子径１１ｎｍ）５０．０２ｇ
と、パーフルオロアルキルリン酸エステル界面活性剤
（旭硝子（株）製；サーフロンＳ−１１２、固形分濃度
１５％）０．２５ｇをイソプロピルアルコール１６．６
ｇで希釈した溶液とを混合してコーティング組成物を調
製した。 Comparative Example 3 Instead of colloidal silica having an organic solvent as a dispersion medium, silica sol (SiO 2 having SiO 2 as a dispersion medium in Example 1) was used.
2 concentration 20wt%, average particle size 11nm) 50.02g
And 0.25 g of perfluoroalkyl phosphate ester surfactant (manufactured by Asahi Glass Co., Ltd .; Surflon S-112, solid content concentration 15%) and isopropyl alcohol 16.6.
A coating composition was prepared by mixing with a solution diluted with g.
【００２３】実施例−５〔評価〕 実施例−１〜４および比較例−１〜３で得られたコーテ
ィング組成物を使用して、表２に示す透明基材の表面
に、バーコーターでウェット膜厚５μｍで塗布して、常
温で乾燥して塗膜を形成し、次に示す方法で性能評価を
行った。その結果を表１と表２に示す。 Example-5 [Evaluation] Using the coating compositions obtained in Examples-1 to 4 and Comparative Examples-1 to 3, the surface of the transparent substrate shown in Table 2 was wetted with a bar coater. A film having a thickness of 5 μm was applied, dried at room temperature to form a coating film, and the performance was evaluated by the following method. The results are shown in Tables 1 and 2.
【００２４】（１）コーティング組成物の安定性；コー
ティング組成物を密閉容器に入れて２５℃の恒温槽に１
ヵ月浸漬し、固液分離の有無を観察した。 ○・・無いもの。 ×・・有るもの。 （２）塗布加工性；コーティング組成物を基材の表面に
バーコーターで塗布し、均一に塗布できるかどうかを観
察した。 ○・・均一に塗布されたもの。 △・・やや塗布むらの有るもの。 ×・・かなり塗布むらの有るもの。(1) Stability of coating composition: The coating composition was placed in a closed container and placed in a constant temperature bath at 25 ° C.
After immersion for one month, the presence or absence of solid-liquid separation was observed. ○ ・ ・ Nothing X ... (2) Coating processability: The coating composition was coated on the surface of the substrate with a bar coater, and it was observed whether the coating composition could be uniformly coated. ○ ・ ・ Applied evenly. △ ・ ・ Somewhat uneven coating. × ・ ・ Applicable uneven coating.
【００２５】（３）透明性；塗膜の形成前後と比較して
目視にて判断した。 ○・・塗膜の形成前の基板と同程度の透明性を有するも
の。 △・・塗膜の形成前の基板より透明性がやや低下したも
の。 ×・・塗膜の形成前の基板より透明性がかなり低下した
もの。 （４）耐熱性；コーティング組成物を塗布して塗膜を形
成した基材を温度８０℃の乾燥器に３０分間入れて、塗
膜の亀裂や白化の有無を目視で観察した。 ○・・亀裂や白化が無いもの。 △・・亀裂や白化が少し認められるもの。 ×・・亀裂や白化がかなり認められるもの。(3) Transparency: It was judged visually by comparison with that before and after the formation of the coating film. ○ ・ ・ Transparent to the same degree as the substrate before the coating film is formed. △ ... Transparency was slightly lower than that of the substrate before the coating film was formed. × ・ ・ Transparency was significantly reduced compared to the substrate before the coating was formed. (4) Heat resistance: The substrate on which the coating composition was applied to form a coating film was placed in a drier at a temperature of 80 ° C. for 30 minutes, and the presence or absence of cracks or whitening of the coating film was visually observed. ○ ・ ・ No cracks or whitening. △ ・ ・ A little crack or whitening is observed. × ·· Those with considerable cracks and whitening.
【００２６】（５）耐候性；コーティング組成物を塗布
して塗膜を形成した基材をサンシャインウェザオメータ
ーにて２００時間処理した後、塗膜の亀裂や白化の有無
を目視で観察した。 ○、△、×・・・同上。 （６）耐久性；コーティング組成物を塗布して塗膜を形
成した基材を２０℃の水中に７日間浸漬し、塗膜の亀裂
や白化の有無を目視で観察した。 ○、△、×・・・同上。(5) Weather resistance: The substrate coated with the coating composition was treated with a sunshine weatherometer for 200 hours, and the presence or absence of cracks or whitening was visually observed. ○, △, × ... Same as above. (6) Durability: The substrate on which the coating composition was applied to form a coating film was immersed in water at 20 ° C. for 7 days, and the presence or absence of cracks or whitening of the coating film was visually observed. ○, △, × ... Same as above.
【００２７】（７）防曇性；コーティング組成物を塗布
して塗膜を形成した基材を、６０℃の温水３００ｍｌを
加えた５００ｍｌのビーカーの上に蓋としてピッタリか
ぶせ、そのビーカーを６０℃に保った恒温水槽上に浮か
べ、基材に水滴形成による曇りが生ずるか、否かを観察
した。 ○・・曇りを生じない。 △・・やや曇りを生じる。 ×・・曇る。 （８）防曇性の持続性；コーティング組成物を塗布して
塗膜を形成した基材を６０℃の温水３００ｍｌを加えた
５００ｍｌのビーカーの上に蓋としてピッタリかぶせ、
そのビーカーを６０℃に保った恒温水槽上に浮かべ、基
材に水滴形成による曇りが生ずるまでの日数を観察し
た。 ○・・３０日以上曇りを生じない。 △・・５〜３０日で曇りを生じる。 ×・・５日以内で曇りを生じる。(7) Anti-fogging property: The base material coated with the coating composition to form a coating film is placed on a 500 ml beaker containing 300 ml of 60 ° C. hot water as a lid, and the beaker is kept at 60 ° C. It was floated on a constant temperature water bath kept at 0.degree. C., and it was observed whether or not the substrate was fogged due to water droplet formation. ○ ・ ・ No cloudiness. △ ・ ・ Slightly cloudy. × ... Cloudy. (8) Persistence of anti-fogging property: The base material coated with the coating composition to form a coating film is placed on a 500 ml beaker to which 300 ml of warm water at 60 ° C. is added as a lid,
The beaker was floated on a constant temperature water bath maintained at 60 ° C., and the number of days until the substrate became cloudy due to water droplet formation was observed. ○ ・ ・ No cloudiness for more than 30 days. △: Cloudy occurs in 5 to 30 days. × ... Cloudy within 5 days.
【００２８】[0028]
【表１】 コーティング組成物 (*1)界面活性剤量（wt％） 固形分濃度（wt％）安定性 実施例−１ ０．３７ ２０．０ ○ 実施例−２ １．５２ １９．７ ○ 実施例−３ １３．０４ ２３．０ ○ 実施例−４ １．１４ １３．０ ○ 比較例−１ ０．３０ ２０．０ × 比較例−２ ０．５７ ２０．０ × 比較例−３ ０．３７ １５．０ △ (*1)界面活性剤／（界面活性剤＋SiO2）×１００[Table 1] Coating composition (* 1) Surfactant amount (wt% ) Solid content concentration (wt% ) Stability Example-1 0.37 20.0 ○ Example-2 1.52 19.7 ○ Example-3 13.04 23.0 o Example-4 1.14 13.0 o Comparative example-1 0.30 20.0 x Comparative example-2 0.57 20.0 x Comparative example-3 0. 37 15.0 △ (* 1) Surfactant / (Surfactant + SiO 2 ) × 100
【００２９】[0029]
【表２】 基材 塗 膜 性 能 (*2) 加工性 透明性 耐熱性 耐候性 耐久性 防曇性 持続性 実施例−１ PET ○ ○ ○ ○ ○ ○ ○ 実施例−１ PTFE ○ ○ ○ ○ ○ ○ ○ 実施例−２ PC ○ ○ ○ ○ ○ ○ ○ 実施例−３ PET ○ ○ ○ ○ ○ ○ ○ 実施例−４ PMMA ○ ○ ○ ○ ○ ○ ○ 比較例−１ PET △ × × ○ × △ × 比較例−２ PTFE △ × × ○ × △ × 比較例−３ PTFE × × △ ○ × △ × (*2) PET ・・ポリエチレンテレフタレート樹脂フィルム PTFE ・・四フッ化エチレン系樹脂フィルム PC ・・ポリカーボネート樹脂フィルム PMMA ・・ポリメチルメタクリレート樹脂板[Table 2] Base film coating Performance (* 2) Workability Transparency Heat resistance Weather resistance Durability Anti-fog Persistence Example-1 PET ○ ○ ○ ○ ○ ○ ○ ○ Example-1 PTFE ○ ○ ○ ○ ○ ○ ○ Example-2 PC ○ ○ ○ ○ ○ ○ ○ Example-3 PET ○ ○ ○ ○ ○ ○ ○ Example-4 PMMA ○ ○ ○ ○ ○ ○ ○ Comparative Example-1 PET △ × × ○ × △ × Comparative Example-2 PTFE △ × × ○ × △ × Comparative Example-3 PTFE × × △ ○ × △ × (* 2) PET ・ ・ Polyethylene terephthalate resin film PTFE ・ ・ Polytetrafluoroethylene resin film PC ・ ・ Polycarbonate Resin film PMMA ・ ・ Polymethylmethacrylate resin plate
【００３０】[0030]
【発明の効果】本発明のコーティング組成物は、合成樹
脂およびガラスなどの透明基材の表面に薄く均一に塗布
することができ、塗布加工が容易であり、塗布して形成
される塗膜は、防曇性、透明性、耐候性、耐久性などに
優れ、長期にわたって防曇性を持続することができる。The coating composition of the present invention can be applied thinly and uniformly on the surface of a transparent substrate such as synthetic resin and glass, the coating process is easy, and the coating film formed by coating is It has excellent anti-fogging property, transparency, weather resistance, durability, etc., and can maintain anti-fogging property for a long time.
Claims (1)
ルシリカと、 （Ｂ）フルオロアルキル基を有する界面活性剤とからな
るコーティング組成物。1. A coating composition comprising (A) colloidal silica containing an organic solvent as a dispersion medium, and (B) a surfactant having a fluoroalkyl group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03244907A JP3139786B2 (en) | 1991-08-30 | 1991-08-30 | Coating composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03244907A JP3139786B2 (en) | 1991-08-30 | 1991-08-30 | Coating composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0559300A true JPH0559300A (en) | 1993-03-09 |
| JP3139786B2 JP3139786B2 (en) | 2001-03-05 |
Family
ID=17125742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03244907A Expired - Lifetime JP3139786B2 (en) | 1991-08-30 | 1991-08-30 | Coating composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3139786B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996018691A3 (en) * | 1994-12-12 | 1996-08-29 | Minnesota Mining & Mfg | Coating composition having anti-reflective and anti-fogging properties |
| US5846650A (en) * | 1996-05-10 | 1998-12-08 | Minnesota Mining And Manufacturing Company | Anti-reflective, abrasion resistant, anti-fogging coated articles and methods |
| WO1998055573A1 (en) * | 1997-06-04 | 1998-12-10 | Toto Ltd. | Method for surface pretreatment before formation of photocatalytic hydrophilic film, and detergent and undercoat composition for use in the same |
| US5873931A (en) * | 1992-10-06 | 1999-02-23 | Minnesota Mining And Manufacturing Company | Coating composition having anti-reflective and anti-fogging properties |
| US6040053A (en) * | 1996-07-19 | 2000-03-21 | Minnesota Mining And Manufacturing Company | Coating composition having anti-reflective and anti-fogging properties |
| JP2009057539A (en) * | 2007-03-30 | 2009-03-19 | Bekku Kk | Coating material |
| JP2010106271A (en) * | 2008-09-30 | 2010-05-13 | Bekku Kk | Coating material |
| JP2020033486A (en) * | 2018-08-31 | 2020-03-05 | 株式会社ネオス | Coating composition and coated film, and article |
| EP3553126A4 (en) * | 2017-02-09 | 2020-05-13 | Daikin Industries, Ltd. | Liquid composition, coating film, and method for producing liquid composition |
-
1991
- 1991-08-30 JP JP03244907A patent/JP3139786B2/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5873931A (en) * | 1992-10-06 | 1999-02-23 | Minnesota Mining And Manufacturing Company | Coating composition having anti-reflective and anti-fogging properties |
| US5997621A (en) * | 1992-10-06 | 1999-12-07 | Minnesota Mining And Manufacturing Co. | Coating composition having anti-reflective and anti-fogging properties |
| WO1996018691A3 (en) * | 1994-12-12 | 1996-08-29 | Minnesota Mining & Mfg | Coating composition having anti-reflective and anti-fogging properties |
| JP2007126672A (en) * | 1994-12-12 | 2007-05-24 | 3M Co | Coating composition having antireflection and antifogging properties |
| AU711689B2 (en) * | 1994-12-12 | 1999-10-21 | Minnesota Mining And Manufacturing Company | Coating composition having anti-reflective and anti-fogging properties |
| US5846650A (en) * | 1996-05-10 | 1998-12-08 | Minnesota Mining And Manufacturing Company | Anti-reflective, abrasion resistant, anti-fogging coated articles and methods |
| US6040053A (en) * | 1996-07-19 | 2000-03-21 | Minnesota Mining And Manufacturing Company | Coating composition having anti-reflective and anti-fogging properties |
| WO1998055573A1 (en) * | 1997-06-04 | 1998-12-10 | Toto Ltd. | Method for surface pretreatment before formation of photocatalytic hydrophilic film, and detergent and undercoat composition for use in the same |
| JP2009057539A (en) * | 2007-03-30 | 2009-03-19 | Bekku Kk | Coating material |
| JP2013166958A (en) * | 2007-03-30 | 2013-08-29 | Bekku Kk | Aqueous coating material |
| JP2010106271A (en) * | 2008-09-30 | 2010-05-13 | Bekku Kk | Coating material |
| EP3553126A4 (en) * | 2017-02-09 | 2020-05-13 | Daikin Industries, Ltd. | Liquid composition, coating film, and method for producing liquid composition |
| US11624004B2 (en) | 2017-02-09 | 2023-04-11 | Daikin Industries, Ltd. | Liquid composition, coating film, and method for producing liquid composition |
| JP2020033486A (en) * | 2018-08-31 | 2020-03-05 | 株式会社ネオス | Coating composition and coated film, and article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3139786B2 (en) | 2001-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1171992A (en) | Pigment-free coatings with improved resistance to weathering | |
| EP0728164B1 (en) | Process for the production of compounds based on silanes containing epoxy groups | |
| DE60010992T2 (en) | Modified metal oxide sol, coating composition and optical element | |
| AU2006305319B2 (en) | Composition for use in the formation of hardcoat layer and optical lens | |
| CA2099892C (en) | Coating compositions | |
| EP1238030B1 (en) | Self-cross-linking coating compositions on the basis of inorganic fluorine-containing polycondensates | |
| EP1760497B1 (en) | Optical part and projection type display apparatus using same | |
| JPH09151368A (en) | Transparent antifogging film | |
| JPWO2010092991A1 (en) | Hydrophilic coating film-forming coating composition | |
| SE450771B (en) | DIRTY RESISTANT COATING COMPOSITION CONTAINING SILICON Dioxide, POLYVINYL ALCOHOL AND FATS | |
| GB2048291A (en) | Silicone Resin Coating Composition especially Suited for Primerless Adhesion to Cast Acrylics | |
| JPH10204323A (en) | Coating liquid for forming hydrophilic coating film and its production | |
| EP1499692A1 (en) | Substrates having a biofilm-inhibiting coating | |
| JPH0559300A (en) | Coating composition | |
| JP3511269B2 (en) | Inorganic oxide colloid particles and coating composition | |
| DE60010364T2 (en) | Optical element coated with a hardened film | |
| JPS624074B2 (en) | ||
| JPH0329823B2 (en) | ||
| JPH06220428A (en) | Surface-modified antifogging film | |
| JPH0137268B2 (en) | ||
| JPH06299091A (en) | Reflection-preventive film-forming coating composition | |
| JP2857820B2 (en) | Water repellent window glass | |
| JPH0559203A (en) | Synthetic resin molding | |
| JP2000075104A (en) | Antifogging optical article and its production | |
| JPH08295844A (en) | Coating composition and production of laminate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071215 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081215 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081215 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091215 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091215 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101215 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20101215 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111215 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20111215 Year of fee payment: 11 |