JPH07187717A - Ultraviolet light absorbing transparent material - Google Patents

Ultraviolet light absorbing transparent material

Info

Publication number
JPH07187717A
JPH07187717A JP32841393A JP32841393A JPH07187717A JP H07187717 A JPH07187717 A JP H07187717A JP 32841393 A JP32841393 A JP 32841393A JP 32841393 A JP32841393 A JP 32841393A JP H07187717 A JPH07187717 A JP H07187717A
Authority
JP
Japan
Prior art keywords
ultraviolet
ultraviolet light
coating solution
film
absorbing
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
Application number
JP32841393A
Other languages
Japanese (ja)
Inventor
Toshikazu Nagashima
敏和 長嶋
Haruki Kuramasu
春喜 倉増
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Central Glass Co Ltd
Original Assignee
Central Glass Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Central Glass Co Ltd filed Critical Central Glass Co Ltd
Priority to JP32841393A priority Critical patent/JPH07187717A/en
Publication of JPH07187717A publication Critical patent/JPH07187717A/en
Pending legal-status Critical Current

Links

Landscapes

  • Surface Treatment Of Glass (AREA)
  • Paints Or Removers (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE:To obtain an ultraviolet light absorbing transparent material capable of screening ultraviolet lights, especially markedly sharply screening the boundary of an ultraviolet light/visible light range approximately at 400nm without impairing optical characteristics. CONSTITUTION:The surface of a transparent base is coated with a coating solution of a synthetic resin-based primer obtained by dissolving an ultraviolet light absorber containing at least a fluorescent brightener and especially an indole-based compound and the coated material is heated and cured at a relatively low temperature to form an ultraviolet light absorbing thin film. The film is successively coated with a silicone-based hard coating solution obtained by dissolving a siloxane prepolymer in an organic solvent and the coated material is heated and cured and a protecting thin film is formed to give an ultraviolet light absorbing transparent material. The ultraviolet light absorbing transparent material is obtained by using a coating solution of an acrylic primer as the coating solution of a synthetic resin-based primer.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、紫外線吸収性が優れた
コーティング膜で被覆した透明体に関するものである。
これらは紫外線遮蔽フィルター的部材として各種窓材、
例えばビルあるいは住宅、車両、船舶、航空機などに有
用な紫外線吸収透明体である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent body coated with a coating film having excellent ultraviolet absorption.
These are various window materials as ultraviolet shielding filter members,
For example, it is an ultraviolet absorbing transparent body useful for buildings or houses, vehicles, ships, aircrafts and the like.

【0002】[0002]

【従来の技術とその問題点】従来から一般にガラス基板
等透明体に紫外線吸収性を付与する処理方法としては、
次の3種類にほぼ大別される。
2. Description of the Related Art Conventionally, as a conventional treatment method for imparting ultraviolet absorptivity to a transparent material such as a glass substrate,
It is roughly divided into the following three types.

【0003】先ず、(1) 透明体自体に紫外線吸収性化合
物を混入配合する方法。例えば、ガラス中に金属化合物
を溶融添加する各種ガラス組成物(例えば、特開昭52ー
47812 号公報)、あるいは樹脂フイルム中に紫外線吸収
剤を分散添加する各種樹脂フイルム(例えば、実開昭59
ー17925 号公報)等がある。次いで(2) 紫外線吸収性透
明膜を透明体表面に貼り合わせる方法。例えば、紫外線
吸収剤を含有するポリビニールブチラール中間膜等を介
して挟み込んだ合せガラス(例えば、特開昭56ー32352
号公報)等がある。さらに(3) 紫外線吸収性透明膜を透
明体表面に形成する方法。例えば、透明体である基材に
スパッタなどの気相成膜法(例えば、特開平4ー76083
号公報)あるいはゾルゲルなどの液相成膜法(例えば、
特開平4ー97103 号公報) による等があり、知られてい
る。
First, (1) a method of mixing and blending an ultraviolet absorbing compound into the transparent body itself. For example, various glass compositions in which a metal compound is melt-added into glass (see, for example, JP-A-52-
47812), or various resin films in which an ultraviolet absorber is dispersedly added into the resin film (for example, Jikkai Sho 59
-17925). Next, (2) a method in which an ultraviolet absorbing transparent film is attached to the surface of the transparent body. For example, laminated glass sandwiched by a polyvinyl butyral interlayer film containing an ultraviolet absorber (see, for example, JP-A-56-32352).
Issue gazette) etc. Furthermore, (3) a method of forming an ultraviolet absorbing transparent film on the surface of a transparent body. For example, a vapor phase film forming method such as sputtering on a transparent base material (eg, Japanese Patent Laid-Open No. 4-76083).
Or a liquid phase film forming method such as sol-gel (for example,
JP-A-4-97103) and the like.

【0004】一方、最近樹脂基材において、増白作用を
有する分散型蛍光塗料、例えば2. 5ビス(5'ターシヤリ
ーブチルベンゾオキサゾリル)チオフエンなどを利用
し、高温高圧染色法あるいは常圧キヤリアー法で、紫外
線を少なくとも90%以上カットし、少なくとも80%以上
の可視光線透過率をもつ透明合成樹脂板を得る方法等が
知られている。(例えば、特開昭61ー126503号公報)
On the other hand, recently, in a resin base material, a dispersion type fluorescent paint having a whitening effect, for example, 2.5 bis (5'-tert-butylbenzoxazolyl) thiophene, etc. is used, and a high temperature high pressure dyeing method or an atmospheric pressure method is used. There is known a method such as a carrier method in which ultraviolet rays are cut by at least 90% or more to obtain a transparent synthetic resin plate having a visible light transmittance of at least 80% or more. (For example, JP-A-61-126503)

【0005】[0005]

【発明が解決しようとする問題点】前述したように、例
えば前記特開昭52ー47812 号公報等あるいは前記実開昭
59ー17925 号公報等に記載のものは、いずれも少量多品
種生産には向かず、吸収波長が紫外/可視領域の境界
(例えば400nm 付近)に及ぶものはフイルムのくもり等
を発現し易く、コントロールが必ずしも容易であるとは
言い難いものである。
DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention As mentioned above, for example, the above-mentioned Japanese Patent Laid-Open No. 52-47812 or the above-mentioned Japanese Utility Model Publication
All of those described in 59-17925 are not suitable for low-volume, high-mix production, and those whose absorption wavelength extends to the ultraviolet / visible region boundary (for example, near 400 nm) are likely to cause film clouding, etc. Control is not always easy.

【0006】また、前記特開昭56ー32352 号公報に記載
のものは、樹脂フイルム単独の場合より耐薬品性、耐擦
傷性、耐久性、着色あるいはくもりが改善されるもの
の、形状対応性が悪く、かなり厚くなって軽量化になり
難いものである。
Further, the one described in JP-A-56-32352 has improved chemical resistance, scratch resistance, durability, coloration or cloudiness as compared with the case of the resin film alone, but has shape conformability. It's bad, it's quite thick, and it's hard to be lightweight.

【0007】さらに、前記特開平4ー76083 号公報ある
いは前記特開平4ー97103 号公報に記載のものは、分解
し易い有機化合物を多量に使用できず、無機化合物が吸
収ベースとなるため、紫外/可視領域の境界(約400nm
)まで充分シャープにカットできないし、また成膜に
ともなう基板温度の上昇や焼成が不可欠のため、耐熱性
の基板にしか適用できない。さら単純な紫外線吸収剤を
多量に含む有機樹脂コーティング膜のみでは、耐薬品
性、耐擦傷性、耐久性が劣るものとなる。
Further, the materials described in JP-A-4-76083 or JP-A-4-97103 cannot use a large amount of easily decomposable organic compounds, and inorganic compounds serve as an absorption base. / Boundary of visible region (about 400 nm
) Can not be cut sufficiently sharply, and since it is indispensable to raise the substrate temperature and baking accompanying film formation, it can only be applied to heat resistant substrates. Further, only the organic resin coating film containing a large amount of a simple ultraviolet absorber will have poor chemical resistance, scratch resistance and durability.

【0008】さらにまた、前記特開昭61ー126503号公報
に記載のものは、紫外線吸収剤を用いることなく、紫外
線を吸収遮断し、透明度に優れるものとなるものの、こ
とに現実では蛍光が目立ち過ぎ、かつ実用上耐久性もか
なり劣るものである。
Further, the one described in the above-mentioned JP-A No. 61-126503 can absorb and block ultraviolet rays without using an ultraviolet absorber and has excellent transparency, but in reality, fluorescence is conspicuous. However, the durability is too poor for practical use.

【0009】[0009]

【問題点を解決するための手段】本発明は、従来のかか
る問題点に鑑みてなしたものであって、紫外/可視領域
境界をきわめてシャープにカットするため、その境界付
近に吸収を有する蛍光増白剤と紫外線吸収剤とを併用
し、蛍光の防止や紫外線吸収剤の大量使用による着色の
防止もできることを見出し、それらを混和して透明基材
表面に対して密着性が良好な合成樹脂系プライマー組成
を調製しコーティング溶液とし、該溶液によるコーティ
ング膜は比較的低温で成膜でき、さらにこれをシリコー
ン系ハードコーティング膜で保護することで、ことに40
0nm 付近で紫外線をシャープに遮蔽するとともに、外装
用としても使用可能な耐薬品性、耐擦傷性ならびに耐久
性に優れた、有用な紫外線吸収透明体を提供するもので
ある。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and since it cuts the ultraviolet / visible region boundary very sharply, it has fluorescence having absorption near the boundary. We have found that it is possible to prevent fluorescence and coloring by using a large amount of UV absorbers by using a whitening agent and a UV absorber together, and by mixing them together, a synthetic resin with good adhesion to the transparent substrate surface. A primer composition was prepared and used as a coating solution, and the coating film formed from this solution can be formed at a relatively low temperature. Furthermore, by protecting this with a silicone hard coating film,
The present invention provides a useful ultraviolet-absorbing transparent body which has excellent chemical resistance, scratch resistance, and durability and which can be used as an exterior material while sharply shielding ultraviolet rays near 0 nm.

【0010】すなわち、本発明は、透明基材の表面に、
蛍光増白剤および紫外線吸収剤を溶解添加してなる合成
樹脂系プライマーコーティング溶液を塗布して加熱硬化
し紫外線吸収性薄膜を形成した後、シロキサンプレポリ
マーが有機溶剤に溶解されてなるシリコーン系ハードコ
ーティング溶液を塗布して加熱硬化し保護薄膜を形成す
ることで順次被覆して成る紫外線吸収透明体において、
紫外線吸収剤として少なくともインドール系化合物を含
有して成ることを特徴とする紫外線吸収透明体。
That is, the present invention is characterized in that the surface of the transparent substrate is
A silicone-based hard coat made by dissolving a siloxane prepolymer in an organic solvent after applying a synthetic resin-based primer coating solution prepared by dissolving and adding an optical brightener and an ultraviolet absorber to form an ultraviolet-absorbing thin film. In an ultraviolet absorbing transparent body formed by applying a coating solution and heating and curing to form a protective thin film, which are sequentially coated,
An ultraviolet-absorbing transparent body comprising at least an indole compound as an ultraviolet absorber.

【0011】ならびに、前記合成樹脂系プライマーコー
ティング溶液が、アクリル系プライマーコーティング溶
液であることを特徴とする上述した紫外線吸収透明体を
それぞれ提供するものである。
Also, the above-mentioned synthetic resin-based primer coating solution is an acrylic-based primer coating solution.

【0012】ここで、前述したように、前記蛍光増白剤
としては、紫外領域で吸収し、可視領域で蛍光を発し、
合成樹脂系プライマー、ことにアクリル系プライマーコ
ーティング剤に溶融添加が可能であって、かつ塗膜が比
較的低温の加熱硬化で変性しなければどのようなもので
もよいものであり、しかも適度の耐熱性があり、吸収波
長が紫外/可視領域境界(例えば、400nm 付近)にある
例えば、UVITEXーOB〔チバガイギー社製、2-(3,5ジ-t-
ブチル-2- ヒドロキシフェニル)-5-クロロベンゾトリア
ゾール〕、あるいはEBー501(三井東圧染料社製)などが
挙げられる。また例えば前記UVITEXーOBの添加量として
は0.02〜 0.5wt%程度であって、0.02wt%未満では効果
がなく、0.5 wt%を超えると溶解度の限界に近くなり、
再結晶を析出してくるようになって塗膜欠陥を生じ易く
なるし、必要以上の添加は不経済となる。
Here, as described above, the fluorescent whitening agent absorbs in the ultraviolet region and emits fluorescence in the visible region,
Synthetic resin type primer, especially acrylic type primer, which can be melt-added and can be any type as long as the coating film does not denature by heat curing at a relatively low temperature, and also has a suitable heat resistance. And has an absorption wavelength in the ultraviolet / visible region boundary (for example, near 400 nm), for example, UVITEX-OB [manufactured by Ciba-Geigy, 2- (3,5 di-t-
Butyl-2-hydroxyphenyl) -5-chlorobenzotriazole], EB-501 (manufactured by Mitsui Toatsu Dyes Co., Ltd.) and the like. Further, for example, the amount of UVITEX-OB added is about 0.02 to 0.5 wt%, and if it is less than 0.02 wt%, it has no effect, and if it exceeds 0.5 wt%, it approaches the solubility limit,
Recrystallization tends to occur and coating film defects tend to occur, and addition of more than necessary becomes uneconomical.

【0013】また、共存せしめる前記紫外線吸収剤とし
ては、少なくともインドール系化合物である例えば、BO
NASORB-UA3901(オリエント化化学社製)を含有せしめる
こととし、ことに吸収波長が紫外/可視領域境界(例え
ば、400nm 付近)に効果があり、他に例えばベンゾフェ
ノン系、ベンゾトリアゾール系、ベンゾエート系シアノ
アクリレート系あるいはサリシレート系などが挙げら
れ、TINUVIN327(チバガイギー社製)、NIOSORB100 (共
同薬品社製、2,4 ジヒトロキシベンゾフェノン)、SEESO
RB706〔シプロ化成社製、2-(2'-ヒドロキシ-5'-メチル-
3'-( 3'',4'',5'',6''-テトラヒドロフタルイミジルメ
チルフェニル) ベンゾトリアゾール〕、SEESORB712〔シ
プロ化成社製、2,4-ジ-t- ブチルフェニル3'5'- ジ-t-
ブチル4'-ヒドロキシベンゾエート〕がある。また例え
ば前記BONASORB-UA3901 の添加量としては0.02〜 0.3wt
%程度であって、0.02wt%未満では効果がなく、0.3 wt
%を超えると黄色がかりはじめ次第に目立ちはじること
となり、また例えば前記TINUVIN327、NIOSORB1.00 、SE
ESORB706や712 の添加量としては0.1 〜 1.5wt%程度で
あって、0.1wt%未満では効果がなく、1.5 wt%を超え
ると溶解度の限界に近くなり、再結晶を析出してくるよ
うになって塗膜欠陥を生じ易くなるし、必要以上の添加
は不経済となる。
The UV absorber to be coexisted is at least an indole compound such as BO.
NASORB-UA3901 (manufactured by Orient Kagaku Kabushiki Kaisha) is included, and the absorption wavelength is particularly effective at the ultraviolet / visible region boundary (for example, near 400 nm). Examples include acrylate-based or salicylate-based, TINUVIN327 (manufactured by Ciba-Geigy), NIOSORB100 (manufactured by Kyodo Yakuhin, 2,4 dihitoroxybenzophenone), SEESO
RB706 [Cypro Kasei Co., 2- (2'-hydroxy-5'-methyl-
3 '-(3'',4'',5'',6''-tetrahydrophthalimidylmethylphenyl) benzotriazole], SEESORB712 (manufactured by Cypro Kasei Co., 2,4-di-t-butylphenyl 3'5'- The -t-
Butyl 4'-hydroxybenzoate]. Further, for example, the amount of BONASORB-UA3901 added is 0.02 to 0.3 wt.
%, Less than 0.02 wt% has no effect, 0.3 wt%
If it exceeds%, it will become yellowish and will start to stand out. For example, the above-mentioned TINUVIN327, NIOSORB1.00, SE
The amount of ESORB706 or 712 added is about 0.1 to 1.5 wt%, and if it is less than 0.1 wt%, it has no effect, and if it exceeds 1.5 wt%, it approaches the solubility limit and recrystallizes. As a result, coating film defects are likely to occur, and addition of more than necessary becomes uneconomical.

【0014】該蛍光増白剤と該トータル紫外線吸収剤の
使用割合としては、重量比率で1:0.5 から1:10程
度、好ましくは1:3 〜6 程度であり、蛍光増白剤が多
くなると蛍光で透視性が悪化し、少な過ぎると所望の紫
外線吸収力が得られない。
The weight ratio of the fluorescent whitening agent to the total ultraviolet absorber is about 1: 0.5 to about 1:10, preferably about 1: 3 to 6, and the amount of the fluorescent whitening agent increases. Fluorescence deteriorates the see-through property, and if the amount is too small, the desired ultraviolet absorbing power cannot be obtained.

【0015】さらにここで、合成樹脂プライマー、こと
にアクリルプライマーについては、上記した蛍光増白剤
と該紫外線吸収剤を充分溶解する必要があるため、エチ
ルセロソルブなどのエーテルアルコール系溶剤にジアセ
トンアルコールなどのケトンアルコール系溶剤やケト
ン、エーテルあるいは芳香族系溶剤を組み合わせて透明
基材を侵さないように配慮した混合溶剤を用いるとよ
い。ことに透明基板がガラス板状体等の場合には、溶解
力があるシクロヘキサノンなどのケトン系溶剤が好まし
い。
Further, regarding the synthetic resin primer, particularly the acrylic primer, it is necessary to sufficiently dissolve the above-mentioned fluorescent whitening agent and the ultraviolet absorber, so that diacetone alcohol is used in an ether alcohol solvent such as ethyl cellosolve. It is preferable to use a mixed solvent prepared by combining a ketone alcohol solvent such as the above, a ketone, an ether, or an aromatic solvent so as not to attack the transparent substrate. In particular, when the transparent substrate is a glass plate or the like, a ketone solvent such as cyclohexanone which has a dissolving power is preferable.

【0016】さらにまた、前記合成樹脂としては例え
ば、アクリル系樹脂、ウレタン系樹脂、フッ素系樹脂あ
るいはポリエステル系樹脂等であり、なかでも前記アク
リル系樹脂としては市販の例えば、アクリルレジンとし
てダイヤナールBR88や85や80(三菱レイヨン製)などを
利用して濃度、粘度あるいは膜厚の関係によって調製す
ればよく、樹脂分濃度としては1〜15wt%程度、蛍光増
白剤と紫外線吸収剤の合計濃度としては0.5 〜2wt%程
度、粘度としては10〜500cP 程度、さらに膜厚としては
2 〜8 μ程度が好ましいものである。ことにトップコー
トとしては3μ程度であって、合計膜厚としては5〜11
μ程度である。
Further, the synthetic resin is, for example, an acrylic resin, a urethane resin, a fluorine resin or a polyester resin, and among them, the acrylic resin is commercially available, for example, DIALAL BR88 as an acrylic resin. Or 85 or 80 (manufactured by Mitsubishi Rayon Co., Ltd.), etc. may be used depending on the relationship of concentration, viscosity or film thickness. The resin concentration is about 1 to 15 wt%, the total concentration of optical brightener and ultraviolet absorber. Is about 0.5 to 2 wt%, the viscosity is about 10 to 500 cP, and the film thickness is
About 2 to 8 μ is preferable. Especially the top coat is about 3μ and the total film thickness is 5-11.
It is about μ.

【0017】なお、透明基材がガラス製の場合には、密
着性をより向上せしめるために、シランカップリング剤
等の接着改良剤の利用がよく、例えばOS808A(大八化学
社製、シリコーン変性アクリルレジン)などを樹脂分濃
度の1/4〜4程度添加するのが好ましく、添加量とし
ては1〜20wt%程度であり、少な過ぎると効果がなく、
多過ぎると不経済となる。
When the transparent substrate is made of glass, an adhesion improver such as a silane coupling agent is often used in order to further improve the adhesion. For example, OS808A (manufactured by Daihachi Chemical Co., Ltd., silicone modified) It is preferable to add about 1/4 to 4 of the resin concentration, such as acrylic resin), and the addition amount is about 1 to 20 wt%.
If too much, it becomes uneconomical.

【0018】さらにまた、上述したように調製された前
記紫外線吸収性合成樹脂プライマー、ことに前記紫外線
吸収性アクリルプライマーは、均一膜厚となるように、
例えばディッピング法、スプレー法、フローコート法、
スピンコート法あるいは印刷法等で塗布し被膜とし、例
えば約80℃程度以上で約1時間程度加熱乾燥するもので
あり、加熱不足であれば、シリコーン系ハードコートで
ある保護膜にプライマー成分が溶出して例えばくもりあ
るいはクラック等を発現し易く、また加熱が過多になる
と、シリコーン系ハードコートである保護膜の密着性が
悪化することになる。
Further, the ultraviolet absorbing synthetic resin primer prepared as described above, particularly the ultraviolet absorbing acrylic primer, has a uniform film thickness,
For example, dipping method, spray method, flow coating method,
It is applied by a spin coating method or a printing method to form a film, for example, it is heated and dried at about 80 ° C. or higher for about 1 hour. If heating is insufficient, the primer component is eluted into the protective film which is a silicone hard coat. Then, for example, clouding or cracks are likely to occur, and if the heating is excessive, the adhesion of the protective film, which is a silicone-based hard coat, deteriorates.

【0019】また、前記シリコーン系ハードコーティン
グ溶液としては、基本的にはオルガノアルコキシシラン
を加水分解して得られるシロキサンプレポリマーのアル
コール溶液をベースとしたものが好ましく、例えば本出
願人が既に提案した特開昭62ー220531号公報に記載の被
覆用組成物のようなコロイダルシリカを含むものが耐擦
傷性にも優れより好ましい。なお市販品では例えば、ト
スガード510(東芝シリコーン製)あるいはSiコート2
(大八化学製)などが利用できる。
The silicone-based hard coating solution is preferably based on an alcohol solution of a siloxane prepolymer, which is basically obtained by hydrolyzing an organoalkoxysilane. For example, the applicant of the present invention has already proposed it. Those containing colloidal silica such as the coating composition described in JP-A No. 62-220531 are more preferable because of excellent abrasion resistance. In the case of commercial products, for example, Tosgard 510 (made by Toshiba Silicone) or Si coat 2
(Manufactured by Daihachi Chemical Co., Ltd.) can be used.

【0020】さらに、塗布環境としては、例えば温度約
15〜25℃程度、湿度約40〜50RH%程度、さらにクリーン
度10,000以下程度が塗膜欠陥の防止の点で好ましい。ま
た塗布法としては、前記紫外線吸収性合成樹脂プライマ
ー、ことに紫外線吸収性アクリルプライマーと同様に、
均一膜厚となるような、例えばディッピング法、スプレ
ー法、フローコート法、スピンコート法あるいは印刷法
などが利用できる。膜厚としては約2〜5μ程度が好ま
しく、薄いと表面保護膜効果がなくなり、厚いと加熱乾
燥硬化時にクラックを発現し易くなるものである。さら
に加熱乾燥硬化には約80℃程度以上の温度がよく、こと
に透明基板がガラス板状体等の場合は約150℃程度で、
約2時間程度の処理が表面硬度を高める上で好ましい。
Further, the coating environment is, for example, a temperature of about
About 15 to 25 ° C, a humidity of about 40 to 50 RH%, and a cleanliness of about 10,000 or less are preferable from the viewpoint of preventing coating film defects. As the coating method, as in the case of the ultraviolet absorbing synthetic resin primer, especially the ultraviolet absorbing acrylic primer,
For example, a dipping method, a spray method, a flow coating method, a spin coating method, a printing method, or the like can be used so as to obtain a uniform film thickness. The film thickness is preferably about 2 to 5 μm, and if it is thin, the effect of the surface protective film is lost, and if it is thick, cracks are likely to appear during heat-drying and curing. Furthermore, a temperature of about 80 ° C or higher is preferable for heat drying and curing, especially about 150 ° C when the transparent substrate is a glass plate,
Treatment for about 2 hours is preferable in order to increase the surface hardness.

【0021】なお、上記した紫外線吸収性アクリル系プ
ライマーあるいはシリコーン系ハードコーティング溶液
の塗布性能を改善するため、フロー改良剤あるいはレオ
ロジーコントロール剤などを適宜添加してもよいことは
言うまでもない。
Needless to say, a flow improver, a rheology control agent or the like may be appropriately added in order to improve the coating performance of the above-mentioned ultraviolet absorbing acrylic primer or silicone hard coating solution.

【0022】さらにまた、前記透明基材としては、例え
ば約80℃程度以上の耐熱性を有するものであればよいも
のであり、好ましくは無機ガラス、あるいはPC、PMMA、
PETなどの樹脂ガラスなどであり、無機質または有機質
を問わず、ことに形状等に特に限定されるものではなく
各種形状に、また大きさあるいは構成のもの、例えば曲
げ板ガラスとしてはもちろん、各種強化ガラスや強度ア
ップガラス、平板や単板で使用できるとともに、複層ガ
ラスあるいは合せガラスとしても適用できることは言う
までもない。
Furthermore, the transparent substrate may be any one having a heat resistance of, for example, about 80 ° C. or higher, and is preferably inorganic glass, PC, PMMA,
Resin glass such as PET, which may be inorganic or organic, and is not particularly limited in shape or the like, and has various shapes and sizes or constitutions, for example, bent glass, as well as various tempered glass. Needless to say, it can be used as a strength-up glass, a flat plate or a single plate, and can also be applied as a multi-layer glass or a laminated glass.

【0023】[0023]

【作用】前述したとおり、本発明によれば、蛍光増白剤
と紫外線吸収剤とを共存せしめるプライマー溶液とする
なかでとくに紫外線吸収剤としてインドール系化合物を
少なくとも含有するものとする、添加量を低減できて特
異な構成でなる紫外線遮蔽性に優れるコーティング膜な
らびに充分な保護膜で被覆した透明体であるので、蛍光
増白剤の蛍光を紫外線吸収剤で吸収させ目立たない被膜
として比較的低温で成膜でき、しかもその表面がハード
コートとなり、ことに400nm 付近において吸収力をアッ
プできて紫外/可視領域の境界を透明で際立った着色を
することなく格段にシャープにカットすることができ、
密着性、耐薬品性、耐擦傷性あるいは耐久性に優れた、
外装用としても使用可能な、有用な紫外線遮蔽ウィンド
ウ等になり得る透明な紫外線吸収透明体を、簡単なコー
ティング処理によって容易にかつ安価に得ることができ
る。
As described above, according to the present invention, in the primer solution in which the fluorescent whitening agent and the ultraviolet absorber coexist, at least an indole compound is contained as the ultraviolet absorber, and the addition amount is Since it is a transparent material that can be reduced and has a unique structure and has an excellent UV shielding property and a sufficient protective film, it absorbs the fluorescence of the fluorescent whitening agent with an ultraviolet absorber and at a relatively low temperature at a relatively low temperature. It is possible to form a film, and its surface becomes a hard coat, especially the absorption power around 400 nm can be increased, and the boundary between the ultraviolet and visible regions can be cut sharply without being transparent and distinctly colored,
Excellent adhesion, chemical resistance, scratch resistance or durability,
It is possible to easily and inexpensively obtain a transparent ultraviolet absorbing transparent body that can be used as an exterior and can be a useful ultraviolet shielding window or the like by a simple coating process.

【0024】[0024]

【実施例】以下、実施例により本発明を具体的に説明す
る。ただし本発明は係る実施例に限定されるものではな
い。
EXAMPLES The present invention will be specifically described below with reference to examples. However, the present invention is not limited to the embodiment.

【0025】(紫外線吸収性アクリル系プライマーの調
製)〔ガラス塗布用〕 攪拌機および循環器つきの丸底フラスコに溶媒となるシ
クロヘキサノン、プロピレングリコールモノメチルエー
テルをはり込み、常温で攪拌しながらアクリルレジンと
してダイヤナールBR−88またはBR−85(いずれも三菱レ
イヨン製)を投入する。さらに攪拌を続けながら蛍光増
白剤としてUVITEX−OB(チバガイギー製)、紫外線吸収
剤としてBONASORB−UA3901(オリエント化学製)、また
はTINUVIN327(チバガイギー製)またはVIOSORB100 (共
同薬品製) またはSEESORB706(シプロ化成製)やSEESOR
B712(シプロ化成製)を適宜添加し、オイルバスで約30
分程度かけて約95℃程度に昇温後、約30分程度保持して
完全に溶解させる。次いで加温を止め、常温まで低下し
てからシリコーン変成アクリル樹脂OSー808Aを添加し攪
拌溶解してガラス塗布用の紫外線吸収性アクリル系プラ
イマーを得た。
(Preparation of UV Absorbing Acrylic Primer) [For glass coating] Cyclohexanone and propylene glycol monomethyl ether as solvents are put in a round bottom flask equipped with a stirrer and a circulator, and dialinal as an acrylic resin while stirring at room temperature. BR-88 or BR-85 (both manufactured by Mitsubishi Rayon) are introduced. UVITEX-OB (manufactured by Ciba Geigy) as a fluorescent whitening agent, BONASORB-UA3901 (manufactured by Orient Chemical) as a UV absorber, or TINUVIN327 (manufactured by Ciba Geigy) or VIOSORB100 (manufactured by Kyodo Chemicals) or SEESORB706 (manufactured by Cipro Kasei) while continuing stirring. ) Or SEESOR
B712 (manufactured by Cipro Kasei) is added as appropriate, and it is about 30 in an oil bath.
After heating to about 95 ° C for about 30 minutes, hold for about 30 minutes to completely dissolve it. Next, the heating was stopped, and after the temperature was lowered to room temperature, silicone modified acrylic resin OS-808A was added and dissolved by stirring to obtain an ultraviolet absorbing acrylic primer for glass coating.

【0026】該紫外線吸収性アクリル系プライマー溶液
は、透明で固形分約8〜11%程度、粘度約200 〜350cP
(25℃) 程度であった。 (紫外線吸収性アクリル系プライマーの調製)〔樹脂塗
布用〕 攪拌機および循環器つきの丸底フラスコに溶媒となるシ
クロヘキサノン、ジアセトンアルコール、プロピレング
リコールモノメチルエーテルをはり込み、常温で攪拌し
ながらアクリルBRー85レジン(三菱レイヨン製)を投入
する。さらに攪拌を続けながら蛍光増白剤UVITEXーOB
(チバガイギー製)、紫外線吸収剤BONASORB−UA3901
(オリエント化学製)やTINUVIN327(チバガイギー製)
を添加し、オイルバスで約30分程度かけて約95℃程度に
昇温後、約30分程度保持して完全に溶解させて樹脂塗布
用の紫外線吸収性アクリル系プライマーを得た。
The ultraviolet absorbing acrylic primer solution is transparent and has a solid content of about 8 to 11% and a viscosity of about 200 to 350 cP.
It was around (25 ℃). (Preparation of UV Absorbing Acrylic Primer) [For Resin Application] Cyclohexanone, diacetone alcohol, and propylene glycol monomethyl ether as solvents are put in a round-bottomed flask equipped with a stirrer and a circulator, and the acrylic BR-85 is stirred at room temperature. A resin (made by Mitsubishi Rayon) is introduced. UVITEX-OB optical brightener while continuing to stir
(Ciba-Geigy), UV absorber BONASORB-UA3901
(Made by Orient Chemical) or TINUVIN327 (made by Ciba Geigy)
Was added, the temperature was raised to about 95 ° C. in an oil bath for about 30 minutes, and the mixture was held for about 30 minutes to completely dissolve it to obtain an ultraviolet absorbing acrylic primer for resin coating.

【0027】該紫外線吸収性アクリル系プライマー溶液
は、透明で固形分約2%程度、粘度約35cP(25℃) 程度
であった。 (シリコーン系ハードコーティング溶液の調製)攪拌機
および循環器つきの 500ml丸底フラスコにメチルトリエ
トキシシラン100gと3ーグリシドキシプロピルトリメト
キシシラン10g をはり込み、無水フタル酸0.04g を添
加、湯浴で約40℃程度に加温し溶解させ、その後、弱塩
基性コロイダルシリカ水溶液スノーテックスC(日産化
学製、平均粒径約15μm程度、SiO2含有量約20%程度)
100gを添加し、約40℃程度で約5日程度反応を行い、GP
C (トーソー製、ULC802A )による数平均分子量約1100
程度、固形分約29%程度の組成物を得た。これに145gの
イソプロピルアルコールを添加し、分画分子量1000の限
外濾過器(日本ミリポア製)で濃縮し、GPC による数平
均分子量約1200程度、固形分約20%の組成物を得た。該
組成物に硬化触媒としてジシアンジアミドを約0.1 部程
度添加してシリコーン系ハードコーティング溶液を得
た。
The ultraviolet absorbing acrylic primer solution was transparent and had a solid content of about 2% and a viscosity of about 35 cP (25 ° C.). (Preparation of silicone-based hard coating solution) 100 g of methyltriethoxysilane and 10 g of 3-glycidoxypropyltrimethoxysilane were placed in a 500 ml round-bottomed flask equipped with a stirrer and a circulator, and 0.04 g of phthalic anhydride was added. Warmed to about 40 ° C to dissolve, then weakly basic colloidal silica aqueous solution Snowtex C (manufactured by Nissan Chemical Co., average particle size of about 15 μm, SiO 2 content of about 20%)
Add 100g, react at about 40 ℃ for about 5 days, and then GP
Number average molecular weight of about 1100 by C (Tosoh, ULC802A)
A composition having a solid content of about 29% was obtained. To this, 145 g of isopropyl alcohol was added, and the mixture was concentrated with an ultrafilter having a molecular weight cut off of 1000 (manufactured by Nippon Millipore) to obtain a composition having a number average molecular weight of about 1200 by GPC and a solid content of about 20%. About 0.1 part of dicyandiamide as a curing catalyst was added to the composition to obtain a silicone hard coating solution.

【0028】(性能評価法) 紫外線吸収性:紫外/可視分光光度計で吸収スペクトル
パターンを測定。 蛍光性: 屋外の自然太陽光下で目視観察。(気に
なる発光、くもりがない。) 表面硬度: ASTM D1044に準拠、摩耗輪CSー10F 、50
0 回転後の△H(ヘーズ)値(%)。
(Performance Evaluation Method) Ultraviolet Absorption: The absorption spectrum pattern was measured with an ultraviolet / visible spectrophotometer. Fluorescence: Visual observation under natural sunlight outdoors. (There is no annoying luminescence or cloudiness.) Surface hardness: According to ASTM D1044, wear wheel CS-10F, 50
0 ΔH (haze) value (%) after rotation.

【0029】密着性: JIS K5400 に準拠、碁盤目
(1mm口)テープ剥離残数を/100で表示。 耐薬品性: 酸 ----25wt% H2SO4 点滴テス
トで24hr。
Adhesion: In accordance with JIS K5400, the cross-cut (1 mm mouth) tape peeling remaining number is displayed as / 100. Chemical resistance: acid ---- 24hr at 25wt% H 2 SO 4 infusion test.

【0030】塩基---- 5wt% NaOH 点滴テスト
で4hr。 溶剤----100 %エタノール 点滴テストで4hr。 耐候性: JIS D0205 に準拠、サンシャインカーボ
ンウェザーメーターで目視異常(膜クラック、剥離、顕
著な黄変)がみられるまでの時間。
Base --- 5 wt% NaOH 4 hours by drip test. Solvent --- 100% ethanol 4 hours by drip test. Weather resistance: In accordance with JIS D0205, the time until visual abnormality (film crack, peeling, noticeable yellowing) is observed with a sunshine carbon weather meter.

【0031】実施例1 大きさ約300mm x300mm 、厚さ約3mm のクリア・フロー
トガラス基板を中性洗剤、水すすぎ、アルコールで順次
洗浄し、乾燥した後、アセトンで払拭し被膜用ガラス基
板とした。
Example 1 A clear float glass substrate having a size of about 300 mm x 300 mm and a thickness of about 3 mm was sequentially washed with a neutral detergent, water rinse, alcohol, dried and then wiped with acetone to form a glass substrate for coating. .

【0032】該被覆用ガラス基板の片面をフイルムマス
キングし、上記した調製済のガラス塗布用紫外線吸収性
アクリル系プライマー溶液に浸漬し、約0.1cm /sec 程
度のスピードで引き上げ、約120 ℃程度で約0.5 時間程
度乾燥し、膜厚約6μ程度の紫外線吸収膜を形成した。
One side of the glass substrate for coating is film-masked, dipped in the prepared ultraviolet absorbing acrylic primer solution for glass coating as described above, pulled up at a speed of about 0.1 cm / sec, and about 120 ° C. After drying for about 0.5 hour, an ultraviolet absorbing film having a thickness of about 6μ was formed.

【0033】次いで、該紫外線吸収膜付ガラス基板を上
記した調製済のシリコーン系ハードコーティング溶液に
浸漬し、約1cm/sec 程度のスピードで引き上げ、約12
0 ℃程度で約0.5 時間程度、約150 ℃程度で約0.5 時間
程度乾燥硬化し、膜厚約3μ程度の保護膜を形成した。
Next, the glass substrate with the ultraviolet absorbing film is dipped in the above-prepared silicone-based hard coating solution and pulled up at a speed of about 1 cm / sec to about 12 cm.
The film was dried and hardened at about 0 ° C. for about 0.5 hours and at about 150 ° C. for about 0.5 hours to form a protective film having a thickness of about 3 μm.

【0034】得られた紫外線吸収透明体である紫外線遮
蔽ガラス基板を上記した性能評価法に従って評価した。
その結果、図1に示すように、波長400nm 以下では透過
率2%以下で紫外線を遮蔽するものであって、ことに40
0nm 付近において紫外/可視領域の境界を着色なく充分
な透視性で格段にシャープにカットでき、気になる発光
発現ならびにくもりもなく防げ、表面硬度もテーバテス
ト後のヘーズ値(△H)が5と耐擦傷性も優れ、耐候性
も3000時間以上で目視異常がなく、耐薬品性も異常な
く、優れた耐久性を有する紫外線吸収透明体であった。
The ultraviolet-shielding glass substrate, which is the obtained ultraviolet-absorbing transparent body, was evaluated according to the above-mentioned performance evaluation method.
As a result, as shown in FIG. 1, at a wavelength of 400 nm or less, ultraviolet rays are shielded with a transmittance of 2% or less.
At around 0 nm, the boundary between the UV / visible region can be cut sharply with sufficient transparency without coloring, and it can prevent luminescence and cloudiness that are noticeable, and the surface hardness has a haze value (ΔH) of 5 after the Taber test. It was an ultraviolet-absorbing transparent body having excellent scratch resistance, weather resistance of 3000 hours or longer, no visual abnormality, no abnormal chemical resistance, and excellent durability.

【0035】実施例2〜5 実施例1と同様なガラス基板に、表1に示すようなプラ
イマー溶液を用い、かつ実施例1と同様な成膜で、表1
のような紫外線吸収膜を形成した。
Examples 2 to 5 The same primer solution as shown in Table 1 was used on the same glass substrate as in Example 1, and the same film formation as in Example 1 was performed.
An ultraviolet absorbing film such as the above was formed.

【0036】次いで、該紫外線吸収膜付ガラス基板を市
販のシリコーン系ハードコーティング溶液であるトスガ
ート510 (東芝シリコーン製)に浸漬し、約1cm/sec
のスピードで引き上げ、約120 ℃で約3時間程度乾燥硬
化し、膜厚約3μ程度の保護膜を形成した。
Then, the glass substrate provided with the ultraviolet absorbing film is dipped in Tosugato 510 (manufactured by Toshiba Silicone) which is a commercially available silicone-based hard coating solution to about 1 cm / sec.
The film was pulled up at the speed of, and dried and cured at about 120 ° C. for about 3 hours to form a protective film with a thickness of about 3 μm.

【0037】得られた紫外線吸収透明体である紫外線遮
蔽ガラス基板を実施例1と同様に評価した。実施例1と
同様に所期の優れた紫外線吸収透明体であった。実施例6 厚さ約50μのPET フイルムを、表1に示した樹脂塗布用
紫外線吸収性アクリル系プライマー溶液に浸漬し、約0.
1cm /sec 程度のスピードで引き上げ、約120℃程度で
約0.5 時間程度乾燥し、膜厚約5μ程度の紫外線吸収膜
を形成した。
The ultraviolet-shielding glass substrate, which is the obtained ultraviolet-absorbing transparent body, was evaluated in the same manner as in Example 1. Similar to Example 1, it was a desired excellent ultraviolet absorbing transparent body. Example 6 A PET film having a thickness of about 50 μ was dipped in a UV-absorbing acrylic primer solution for resin coating shown in Table 1 to give a thickness of about 0.
It was pulled up at a speed of about 1 cm / sec and dried at about 120 ° C for about 0.5 hours to form an ultraviolet absorbing film with a thickness of about 5μ.

【0038】次いで、該紫外線吸収膜付フイルムを上記
した調製済のシリコーン系ハードコーティング溶液に浸
漬し、約1cm/sec 程度のスピードで引き上げ、約120
℃程度で約0.5 時間程度、約150 ℃程度で約0.5 時間程
度乾燥硬化し、膜厚約3μ程度の保護膜を形成した。
Next, the film with an ultraviolet absorbing film is dipped in the above-prepared silicone hard coating solution and pulled up at a speed of about 1 cm / sec to about 120 cm.
The film was dried and hardened at about 0.5 ° C. for about 0.5 hours and at about 150 ° C. for about 0.5 hours to form a protective film with a thickness of about 3 μm.

【0039】得られた紫外線吸収透明体である紫外線遮
蔽フイルムを実施例1と同様に評価した。実施例1と同
様に所期の優れた紫外線吸収透明体であった。比較例1 表1に示すように紫外線吸収剤TINUVIN327(チバガイギ
ー製)で調製した紫外線吸収性アクリル系プライマーを
用いた以外は実施例1と同様にして紫外線吸収性ガラス
基板を得た。
The ultraviolet-shielding film, which is the obtained ultraviolet-absorbing transparent body, was evaluated in the same manner as in Example 1. Similar to Example 1, it was a desired excellent ultraviolet absorbing transparent body. Comparative Example 1 As shown in Table 1, an ultraviolet absorbing glass substrate was obtained in the same manner as in Example 1 except that the ultraviolet absorbing acrylic primer prepared with the ultraviolet absorber TINUVIN327 (manufactured by Ciba Geigy) was used.

【0040】得られた該紫外線吸収性ガラス基板につい
ては、外観上は良好であるが、吸収性は到底波長400nm
に届かぬもので、耐候性も1000時間程度のものであり、
到底所期の紫外線吸収透明体とは言い難いものであっ
た。
The obtained ultraviolet absorbing glass substrate has a good appearance, but has an absorption of 400 nm.
The weather resistance is about 1000 hours,
It was hard to say that it was a UV-absorbing transparent body in the very beginning.

【0041】比較例2 表1に示すように蛍光増白剤UVITEXーOB(チバガイギー
製)で調製した紫外線吸収性アクリル系プライマーを用
いた以外は実施例1と同様にして紫外線吸収性ガラス基
板を得た。
Comparative Example 2 An ultraviolet absorbing glass substrate was prepared in the same manner as in Example 1 except that an ultraviolet absorbing acrylic primer prepared with a fluorescent whitening agent UVITEX-OB (manufactured by Ciba Geigy) was used as shown in Table 1. Obtained.

【0042】得られた該紫外線吸収性ガラス基板につい
ては、外観上はわずかしか青色蛍光を感じないが、図1
に示すように、波長400nm 付近をカットするもののそれ
までの紫外線の範囲での紫外線カットができておらず、
耐候性は300 時間程度のものであり、到底所期の紫外線
吸収透明体とは言い難いものであった。
About the obtained ultraviolet absorbing glass substrate, a slight blue fluorescence is felt in the appearance, but FIG.
As shown in, although it cuts around the wavelength of 400 nm, it has not been able to cut the ultraviolet rays in the range of ultraviolet rays up to that point,
The weather resistance was about 300 hours, and it was hard to say that it was a UV absorbing transparent body at the very beginning.

【0043】比較例3 表1に示すように蛍光増白剤UVITEXーOB(チバガイギー
製)と紫外線吸収剤TINUVIN327(チバガイギー製)で調
製した紫外線吸収性プライマーを用いた以外は実施例1
と同様にして紫外線吸収性ガラス基板を得た。
Comparative Example 3 As shown in Table 1, Example 1 was repeated except that an ultraviolet absorbing primer prepared with a fluorescent whitening agent UVITEX-OB (manufactured by Ciba Geigy) and an ultraviolet absorbent TINUVIN327 (manufactured by Ciba Geigy) was used.
An ultraviolet absorbing glass substrate was obtained in the same manner as in.

【0044】得られた該紫外線吸収性ガラス基板につい
ては、外観上は室内側および屋外側ともにほぼ無着色で
透明であるものの、400nm 付近のカットが不十分で、耐
候性も1000時間程度のものであり、到底所期の紫外線吸
収透明体とは言い難いものであった。
The obtained ultraviolet absorbing glass substrate is almost colorless and transparent in appearance on both the indoor and outdoor sides, but the cut around 400 nm is insufficient and the weather resistance is about 1000 hours. Therefore, it is difficult to say that it is an ultraviolet absorbing transparent body at the very beginning.

【0045】比較例4 表1に示すように紫外線吸収剤BONASORB327 (チバガイ
ギー製)で調製した紫外線吸収性プライマーを用いた以
外は実施例1と同様にして紫外線吸収性ガラス基板を得
た。
Comparative Example 4 As shown in Table 1, an ultraviolet absorbing glass substrate was obtained in the same manner as in Example 1 except that the ultraviolet absorbing primer prepared with the ultraviolet absorber BONASORB327 (manufactured by Ciba Geigy) was used.

【0046】得られた該紫外線吸収性ガラス基板につい
ては、外観上はわずかに黄味を感じる程度で透明である
ものの、波長350nm 付近を中心とした範囲の紫外線カッ
トが不十分であり、耐候性も約500 時間程度のものであ
り、到底所期の紫外線吸収透明体とは言い難いものであ
った。
The obtained ultraviolet-absorbing glass substrate was transparent to the extent that it was slightly yellowish in appearance, but the ultraviolet-cut in the range around the wavelength of 350 nm was insufficient, and the weather resistance was high. It was about 500 hours, and it was hard to say that it was a UV absorbing transparent material at the very beginning.

【0047】[0047]

【表1】 [Table 1]

【0048】表中は、(a)ダイヤナールBR88、
(a’)ダイヤナールBR85(共に、三菱レイヨン
製)。(b)UVITEXーOB(チバガイギー製)、
(c)BONASORBーUA3901(オリエント化
学製)、(c' )TINUVIN327(チバガイギー
製)、(c'')VIOSORB100(共同薬品製)、
(c''')SEESORB706(シプロ化成製)、
(c'''') SEESORB712(シプロ化成製)。
(d)シクロヘキサノン、(d’)プロピレングリコー
ルモノメチルエーテル、(d'')ジアセトンアルコー
ル。(e) シリコーン変成アクリルレジン:OS80
8A(大八化学製)を各々示す。
In the table, (a) dialnal BR88,
(A ') Diinal BR85 (both made by Mitsubishi Rayon). (B) UVITEX-OB (manufactured by Ciba Geigy),
(C) BONSORB-UA3901 (manufactured by Orient Chemical), (c ') TINUVIN327 (manufactured by Ciba Geigy), (c'') VIOSORB100 (manufactured by Kyodo Chemical),
(C ''') SEESORB 706 (manufactured by Cypro Kasei),
(C ″ ″) SEESORB 712 (manufactured by Cypro Kasei).
(D) Cyclohexanone, (d ') propylene glycol monomethyl ether, (d'') diacetone alcohol. (E) Silicone modified acrylic resin: OS80
8A (manufactured by Daihachi Chemical Co., Ltd.) is shown.

【0049】[0049]

【発明の効果】以上前述したように、本発明によれば、
光学特性を損なうことなく、透明でしかも紫外線を遮
蔽、ことに400nm 付近において紫外/可視領域の境界を
格段にシャープに紫外線を遮蔽することができ、密着
性、耐薬品性、耐擦傷性あるいは耐久性に優れ、外装用
としても使用可能となり、しかも種々の機能性を付与し
得ることができる、ビルあるいは住宅、車両等、種々の
分野に広く採用できる有用な紫外線吸収透明体を容易に
かつ安価に提供できるものである。
As described above, according to the present invention,
It is transparent and blocks UV rays without deteriorating the optical characteristics, and in particular, it can block UV rays significantly sharply in the UV / Visible region around 400 nm, resulting in adhesion, chemical resistance, scratch resistance or durability. A UV-absorbing transparent body that has excellent properties, can be used as an exterior, and can be given various functions, and that can be widely adopted in various fields such as buildings, houses, vehicles, etc. Can be provided to.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例1の紫外線吸収透明体、通常の
ガラス基板(フロートガラス3mm厚)および比較例1〜
4の紫外線吸収性ガラス基板における、紫外/可視分光
曲線での透過率を示す。
FIG. 1 is an ultraviolet absorbing transparent body of Example 1 of the present invention, an ordinary glass substrate (float glass 3 mm thick), and Comparative Examples 1 to 1.
The transmittance | permeability in an ultraviolet / visible spectroscopic curve in the ultraviolet absorptive glass substrate of 4 is shown.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 C09B 57/00 Y C09D 5/00 PPF 5/32 PRB C09K 3/00 104 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Office reference number FI technical display location C09B 57/00 Y C09D 5/00 PPF 5/32 PRB C09K 3/00 104

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 透明基材の表面に、蛍光増白剤および紫
外線吸収剤を溶解添加してなる合成樹脂系プライマーコ
ーティング溶液を塗布して加熱硬化し紫外線吸収性薄膜
を形成した後、シロキサンプレポリマーが有機溶剤に溶
解されてなるシリコーン系ハードコーティング溶液を塗
布して加熱硬化し保護薄膜を形成することで順次被覆し
て成る紫外線吸収透明体において、紫外線吸収剤として
少なくともインドール系化合物を含有して成ることを特
徴とする紫外線吸収透明体。
1. A transparent resin is coated on its surface with a synthetic resin-based primer coating solution prepared by dissolving and adding a fluorescent whitening agent and an ultraviolet absorber, and the mixture is heated and cured to form an ultraviolet absorbing thin film. An ultraviolet-absorbing transparent body obtained by applying a silicone-based hard coating solution in which a polymer is dissolved in an organic solvent, followed by heating and curing to form a protective thin film, and successively coating the same, and containing at least an indole-based compound as an ultraviolet absorber. An ultraviolet-absorbing transparent body characterized by comprising:
【請求項2】 前記合成樹脂系プライマーコーティング
溶液が、アクリル系プライマーコーティング溶液である
ことを特徴とする請求項1記載の紫外線吸収透明体。
2. The ultraviolet absorbing transparent body according to claim 1, wherein the synthetic resin-based primer coating solution is an acrylic-based primer coating solution.
JP32841393A 1993-12-24 1993-12-24 Ultraviolet light absorbing transparent material Pending JPH07187717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32841393A JPH07187717A (en) 1993-12-24 1993-12-24 Ultraviolet light absorbing transparent material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32841393A JPH07187717A (en) 1993-12-24 1993-12-24 Ultraviolet light absorbing transparent material

Publications (1)

Publication Number Publication Date
JPH07187717A true JPH07187717A (en) 1995-07-25

Family

ID=18209990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32841393A Pending JPH07187717A (en) 1993-12-24 1993-12-24 Ultraviolet light absorbing transparent material

Country Status (1)

Country Link
JP (1) JPH07187717A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998019862A1 (en) * 1996-11-04 1998-05-14 Eastman Chemical Company Uv stabilized multi-layer structures with detectable uv protective layers and a method of detection
JP2002086634A (en) * 2000-09-14 2002-03-26 Dainippon Ink & Chem Inc Waterproof laminated structure and method for constructing the same
JP2003011661A (en) * 2001-06-25 2003-01-15 Exatec Llc Panel and method for providing automobile fixed glazing
JP2003011293A (en) * 2001-06-27 2003-01-15 Mitsubishi Gas Chem Co Inc Plastic resin laminated plate
JP2008105225A (en) * 2006-10-24 2008-05-08 Mgc Filsheet Co Ltd Antidazzle laminate, coated antidazzle laminate, antidazzle material and manufacturing method of antidazzle material
JP2010043208A (en) * 2008-08-14 2010-02-25 Teijin Dupont Films Japan Ltd Laminated film

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998019862A1 (en) * 1996-11-04 1998-05-14 Eastman Chemical Company Uv stabilized multi-layer structures with detectable uv protective layers and a method of detection
JP2002086634A (en) * 2000-09-14 2002-03-26 Dainippon Ink & Chem Inc Waterproof laminated structure and method for constructing the same
JP2003011661A (en) * 2001-06-25 2003-01-15 Exatec Llc Panel and method for providing automobile fixed glazing
JP2003011293A (en) * 2001-06-27 2003-01-15 Mitsubishi Gas Chem Co Inc Plastic resin laminated plate
JP2008105225A (en) * 2006-10-24 2008-05-08 Mgc Filsheet Co Ltd Antidazzle laminate, coated antidazzle laminate, antidazzle material and manufacturing method of antidazzle material
JP2010043208A (en) * 2008-08-14 2010-02-25 Teijin Dupont Films Japan Ltd Laminated film

Similar Documents

Publication Publication Date Title
JP3361180B2 (en) Water-repellent ultraviolet-infrared absorbing glass and method for producing the same
JP2972827B2 (en) UV absorbing transparent body
EP0597391B1 (en) Glass plate with ultraviolet absorbing multilayer coating
JP5918138B2 (en) Primer composition for optical article and optical article
US5316854A (en) Glass or quartz articles having high temperature UV absorbing coatings containing ceria
US4478909A (en) Anti-fogging coating film
GB2067582A (en) Silicone resin coating composition
JP2015033854A (en) Transparent article and method for producing the same
US20020061407A1 (en) Abrasion resistant coating composition and coated articles
JPH0546394B2 (en)
JPH08133792A (en) Heat rays reflecting ultraviolet rays absorbing transparent body
JPH07187717A (en) Ultraviolet light absorbing transparent material
JP3361176B2 (en) UV and infrared absorbing transparent body
JP6625609B2 (en) Transparent article, method for producing the same, and film forming solution used therefor
EP1772501A2 (en) Silicone-coated architectural glass
JPH10152349A (en) Colored glass absorbing ultraviolet light
JP2015138117A (en) Primer composition for optical article, and method for producing the same
JPH0372302A (en) Composition for coating
JPH08133789A (en) Ultraviolet rays absorbing transparent body
BR112020026740A2 (en) SOLAR CONTROL GLASS OR LOW EMISSIVITY UNDERSTANDING AN ORGANIC PROTECTIVE LAYER
JP2013107995A (en) Coating composition and antireflection film using the same
JPH08231245A (en) Uv ray and infrared ray absorbable glass
JPH08133790A (en) Ultraviolet rays and infrared rays absorbing transparent body
JP2937689B2 (en) Heat-reflecting UV-absorbing transparent body
JPH05255643A (en) Hard coating agent for absorbing head ray and heat shielding unit