JPS62148339A - Transparent substrate coated with ultraviolet ray absorbing film - Google Patents

Transparent substrate coated with ultraviolet ray absorbing film

Info

Publication number
JPS62148339A
JPS62148339A JP29126785A JP29126785A JPS62148339A JP S62148339 A JPS62148339 A JP S62148339A JP 29126785 A JP29126785 A JP 29126785A JP 29126785 A JP29126785 A JP 29126785A JP S62148339 A JPS62148339 A JP S62148339A
Authority
JP
Japan
Prior art keywords
paint
transparent substrate
ultraviolet
glass
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP29126785A
Other languages
Japanese (ja)
Inventor
Shinji Noguchi
晋治 野口
Osamu Kuramitsu
修 倉光
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP29126785A priority Critical patent/JPS62148339A/en
Publication of JPS62148339A publication Critical patent/JPS62148339A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect
    • G02F1/153—Constructional details
    • G02F1/1533—Constructional details structural features not otherwise provided for

Landscapes

  • Laminated Bodies (AREA)
  • Surface Treatment Of Glass (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

PURPOSE:To provide the titled transparent substrate being stable and inexpensive in production having high absorption efficiency for ultraviolet rays by coating the surface of a transparent substrate with a coating film contg. dispersed fine particles of metal oxide having absorbing effect for ultraviolet rays. CONSTITUTION:5-10wt% fine metal oxide particles (e.g., TiO2) having absorbing effect for ultraviolet rays and <=0.1mum particle size are added to paint such as thermosetting acrylic paint, silicone paint, silicate paint, etc., and dispersed uniformly with a ball mil, etc., to obtain the paint. Then, the paint is coated on the surface of a transparent substrate (e.g., glass) and baked at a curing temp. of the paint.

Description

【発明の詳細な説明】 〔技術分野〕 この発明は、紫外線吸収塗膜付き透明基材に関する。[Detailed description of the invention] 〔Technical field〕 The present invention relates to a transparent substrate with an ultraviolet absorbing coating.

〔背景技術〕[Background technology]

一般に、光線中の紫外線のみを力・ノドするためには、
紫外線吸収組成ガラス、あるいは、紫外線吸収剤添加有
機塗料や多層干渉膜をガラス基材面に付けたものがある
が、それぞれ次の問題を有している。In general, in order to eliminate only the ultraviolet rays in the light,
There are glasses with ultraviolet absorbing compositions, organic paints containing ultraviolet absorbers, or multilayer interference films attached to the glass substrate surface, but each has the following problems.

■　紫外線吸収組成ガラスを使用する場合紫外線吸収組
成ガラスは、ガラス組成にＣｅＯ２ｒ　　Ｆ　ｅ　Ｏ＋
　あるいはＴ　ｉ　Ｏｚ等を添加して作成する。しかし
、このガラスを作成する場合、ガラスの組成から変える
必要があり、そのため大変手間がかかり、コスト高にな
る。■ When using ultraviolet absorbing composition glass Ultraviolet absorbing composition glass has CeO2r F e O+ in the glass composition.
Alternatively, it can be prepared by adding T i Oz or the like. However, when creating this glass, it is necessary to change the composition of the glass, which requires a lot of effort and increases costs.

■　有機系の紫外線吸収剤を添加した塗料を使用する場
合 そのひとつは、紫外線吸収剤として、２，２′−ジヒド
ロキシ−４−メトキシヘンシフエノン。■ When using a paint containing an organic ultraviolet absorber, one example is 2,2'-dihydroxy-4-methoxyhensiphenone as the ultraviolet absorber.

２．２′−ジヒドロキシ−４，４′−ジメトキシベンゾ
フェノン、エチル２−′：／アノ−３−フエニルシナメ
イト等の有機系紫外線吸収剤を添加して、有機樹脂塗料
を使用する場合である。この場合、高温雰囲気及び長期
の使用では、紫外線吸収剤が分解したり、塗膜面上ヘブ
リートしたりする。2. When organic resin paints are used by adding organic ultraviolet absorbers such as 2'-dihydroxy-4,4'-dimethoxybenzophenone and ethyl 2-':/ano-3-phenylcinnamate. . In this case, in a high-temperature atmosphere and when used for a long period of time, the ultraviolet absorber decomposes or stains on the coating surface.

他方、耐熱タイプの塗料、例えばシリコン、フッ素樹脂
系あるいはケイ酸塩系、有機シリケートの加水分解物な
どの無機塗料へ添加する場合には、塗料自体の焼付温度
が高いため分解するおそれがある。On the other hand, when it is added to heat-resistant paints, such as inorganic paints such as silicone, fluororesin-based, silicate-based, and organic silicate hydrolysates, there is a risk of decomposition due to the high baking temperature of the paint itself.

■　多層干渉膜による紫外線力＼シトの場合紫外線を吸
収（カット）する方法として、高屈折率な金属酸化膜（
例えばＴｉ０ｚ、ＣｅＯ□）の間にＳｉＯ２，ＭｇＦｚ
のような低屈折な物質をはさんだ形のコーテイング膜（
全層数７〜１５層）を、ガラス基材表面に形成する方法
がある。■ Ultraviolet power by multilayer interference film In the case of UV light absorption (cutting) ultraviolet light, a high refractive index metal oxide film (
For example, SiO2, MgFz between Ti0z, CeO□)
A coating film sandwiching a low refractive material such as
There is a method of forming a total of 7 to 15 layers on the surface of a glass substrate.

これは、薄膜の干渉作用を利用したものであり、各膜厚
は光学膜厚ｎｄ（ｎは屈折率、ｄは実際の膜厚）が３８
．０ｎｍ以上の波長の１／４になるように制御する必要
がある。多層干渉膜の形成については、各層ごとの膜厚
制御を精度良く行う必要があり、作製方法としては、真
空槽中での抵抗加熱、あるいは、電子ビーム加熱による
蒸着法が一般的である。また、積層数も７層以上の積層
がａ・要である。この多層干渉膜は、性能的に優れるが
、設備コストが高（、したがって、製造コストも高価に
なる。また、蒸着法であるため、異形状（立体面）など
処理できる形体が制限される。This utilizes the interference effect of thin films, and each film has an optical thickness nd (n is the refractive index and d is the actual film thickness) of 38
．． It is necessary to control the wavelength to be 1/4 of the wavelength of 0 nm or more. When forming a multilayer interference film, it is necessary to precisely control the film thickness of each layer, and the common manufacturing method is resistance heating in a vacuum chamber or vapor deposition using electron beam heating. Furthermore, the number of laminated layers is 7 or more. Although this multilayer interference film has excellent performance, the equipment cost is high (and therefore the manufacturing cost is also high. Also, since it is a vapor deposition method, the shapes that can be processed, such as irregular shapes (three-dimensional surfaces), are limited.

以上のようであって、上記従来の諸方法には、いずれも
、問題があった。As described above, all of the conventional methods described above have problems.

〔発明の目的〕[Purpose of the invention]

この発明は、このような事情に鑑みて、紫外線の吸収効
率がよく、安定で、かつ、生産コストの安い紫外線吸収
塗膜付き透明基材を提供することを目的としている。In view of these circumstances, an object of the present invention is to provide a transparent substrate with an ultraviolet absorbing coating that has good ultraviolet absorption efficiency, is stable, and has a low production cost.

〔発明の開示〕[Disclosure of the invention]

この発明は、このような目的を達成するために、透明基
材表面に紫外線吸収性金属酸化物微粒子が分散されてい
る塗膜が形成されてなる紫外線吸収塗膜付き透明基材を
要旨とする。In order to achieve such an object, the gist of the present invention is to provide a transparent substrate with an ultraviolet-absorbing coating film, which has a coating film in which ultraviolet-absorbing metal oxide fine particles are dispersed on the surface of the transparent substrate. .

以下に、この発明の詳細な説明する。The present invention will be explained in detail below.

塗膜になる塗料としては、透明被膜を形成するもので、
好ましくは耐熱性に優れ、透明基材に対し密着良好なも
の、かつ、塗膜自体も紫外線により劣化しないもの、た
とえば、熱硬化タイプのアクリル系塗料、シリコン系塗
料、ケイ酸塩系、有機シリケートの加水分解物などの無
機系塗料が挙げられる。The paint that forms a transparent film is
Preferably, it has excellent heat resistance and good adhesion to transparent substrates, and the coating itself does not deteriorate due to ultraviolet rays, such as thermosetting acrylic paint, silicone paint, silicate paint, and organic silicate paint. Examples include inorganic paints such as hydrolysates of

紫外線吸収性金属酸化物としては、酸化チタン、酸化セ
シウム、酸化鉄などが挙げられるが、酸化セシウムや酸
化鉄は、着色する傾向がある。それゆえ、透明性が強く
要求される場合には、酸化チタンが好ましい。酸化チタ
ンの粒子径は、０゜１μｍ以下が好ましい。０．１μｍ
以上であると、酸化チタンのＩ！！蔽力が高いため、透
明性が低下したり、塗膜を形成した際のレベリングおよ
び塗膜中への分散に影客がでたりする。塗料に存在する
酸化チタンの量は、５重量％以下では紫外線吸収効果が
得られない。添加量を増すことにより紫外線吸収効果が
高（なるが、それにつれて隠蔽力が高くなるため、塗膜
の透明性が悪くなる。それゆえ、透明性があり、かつ、
紫外線吸収効果もあるようにするには、酸化チタン添加
量は、５〜１０重量％が適当である。他の金属酸化物に
ついても、はぼ同じである。Examples of ultraviolet absorbing metal oxides include titanium oxide, cesium oxide, and iron oxide, but cesium oxide and iron oxide tend to be colored. Therefore, titanium oxide is preferred when transparency is strongly required. The particle size of titanium oxide is preferably 0.1 μm or less. 0.1μm
Above, the I! of titanium oxide! ! Due to its high hiding power, transparency may decrease and problems may arise in leveling and dispersion in the coating film when it is formed. If the amount of titanium oxide present in the paint is less than 5% by weight, no ultraviolet absorption effect can be obtained. Increasing the amount added increases the UV absorption effect (but as the hiding power increases, the transparency of the coating film deteriorates. Therefore, it is transparent and
In order to also have an ultraviolet absorption effect, the amount of titanium oxide added is suitably 5 to 10% by weight. The same holds true for other metal oxides.

透明基材としては、−ｉにガラスが用いられるが、その
組成や形状など特に限定はない。As the transparent base material, glass is used for -i, but its composition and shape are not particularly limited.

つぎに、この発明にかかる紫外線吸収塗膜付き透明基材
の製法について詳しく説明する。Next, a method for producing a transparent substrate with an ultraviolet absorbing coating according to the present invention will be explained in detail.

製法には、２種類の方法がある。第１の方法は、粒径が
０．１μｍ以下の酸化チタン徽粒子を用意し、これを塗
料中に入れボールミル等により分散させ、酸化チタン微
粒子が分散した塗料をガラス成形品に塗装し、塗料の硬
化温度で焼付けると言う方法である。。塗装の方法は、
特に限定しないが、均一な塗膜が得られるスプレ一方式
が好ましい。第２の方法は、チタンニウムイソプロピレ
ート（Ｔ　ｊ　　（ＯＣａ　Ｈ７）　４　：］　、　　
チタニウムブチレートｃＴｉ　　（ＯＣ４Ｈ９）　ａ　
］などのチタニウムアルコラードを塗料中に撹拌しなが
ら滴下し、５０〜７５°Ｃで５〜３０時間かげて加水分
解を行い、塗料中にアルコール性チタンゾルを形成分散
させでおいて、このチタンゾル分散塗料をガラス成形品
上へ塗装し、４００°Ｃ以上の温度で焼成して塗１１り
中に酸化チタン微粒子を形成させると言うものである。There are two types of manufacturing methods. The first method is to prepare titanium oxide particles with a particle size of 0.1 μm or less, put them in a paint, disperse them using a ball mill, etc., apply the paint in which the titanium oxide particles are dispersed to a glass molded product, and then apply the paint to the glass molded product. This method involves baking at a curing temperature of . . The method of painting is
Although not particularly limited, a one-type spray method that provides a uniform coating film is preferred. The second method uses titanium isopropylate (T j (OCa H7) 4 :],
Titanium butyrate cTi (OC4H9) a
] is added dropwise to the paint while stirring, and hydrolyzed at 50 to 75°C for 5 to 30 hours to form and disperse alcoholic titanium sol in the paint. The coating is applied onto a glass molded article and fired at a temperature of 400°C or higher to form titanium oxide fine particles during coating.

焼成温度が４００　’Ｃ以上となっているのは、チタン
ゾルが完全に酸化する温度が４００℃であるからである
。したがって、使用できる塗料も、４００°Ｃ以上の焼
成で劣化をおこさないもの、たとえば、ケイ酸塩系、有
機シリケート系などの無機系塗料が好ましい。また、塗
料中で加水分解を行わせる場合、必要に応じて、エチル
アルコール、イソプロピルアルコール、ブチルセロソル
ブなどの溶媒、および、この溶媒５０−１００重量部に
対し、塩酸、硫酸、硝酸などの酸を０．０１〜５重量部
添加するようにしてもよい。これらの製法によると基材
のガラス組成を変更したり、大掛かりな装置を必要とし
ないので、生産コストが低減できる。基材表面の形状も
自由に選択できる。The reason why the firing temperature is 400'C or more is because the temperature at which the titanium sol is completely oxidized is 400C. Therefore, the paints that can be used are preferably those that do not deteriorate when fired at 400°C or higher, such as inorganic paints such as silicate-based and organic silicate-based paints. In addition, when hydrolysis is carried out in a paint, if necessary, a solvent such as ethyl alcohol, isopropyl alcohol, butyl cellosolve, etc., and an acid such as hydrochloric acid, sulfuric acid, or nitric acid are added to 50 to 100 parts by weight of this solvent. It may be added in an amount of .01 to 5 parts by weight. These manufacturing methods do not require changing the glass composition of the base material or require large-scale equipment, so production costs can be reduced. The shape of the base material surface can also be freely selected.

つぎに、この発明の実施例を詳しく説明する。Next, embodiments of the invention will be described in detail.

（実施例Ｉ） 塗料組成エチルシリケート加水分解５ｉｏ２ヅルｉｏ、
５重１％、イソプロピルアルコール５８．５重量％、水
６．０重量％の塗料を用意し、この塗料に０．０５〜０
．１μｍの超微粒子酸化チタンを塗料に対して５重量％
の割合で添加し、ボールミルで撹拌分散させた。撹拌後
、この塗料をスライドガラス上に塗装し、１８０℃の温
度で２０分間焼付を行い紫外線吸収塗膜付スライドガラ
スを得た。(Example I) Coating composition Ethyl silicate hydrolyzed 5io2io,
Prepare a paint containing 5% by weight, 58.5% by weight of isopropyl alcohol, and 6.0% by weight of water, and add 0.05 to 0% by weight to this paint.
．． 5% by weight of 1μm ultra-fine particle titanium oxide based on the paint
and stirred and dispersed using a ball mill. After stirring, this paint was applied onto a slide glass and baked at a temperature of 180° C. for 20 minutes to obtain a slide glass with an ultraviolet absorbing coating.

（実施例２） 超微粒子酸化チタンの添加量を１０重量％とじた以外は
実施例１と同様にして紫外線吸収塗膜付きスライドガラ
スを得た。(Example 2) A slide glass with an ultraviolet absorbing coating was obtained in the same manner as in Example 1, except that the amount of ultrafine titanium oxide added was 10% by weight.

（実施例３） 塗料組成エチルシリケートＣ８ｉ　　（ＯＣ２Ｈ５）、
）４３重量％、ブタノール（Ｃ４Ｈ９０Ｈ）５０重量％
、水７重量％の塗料組成分を撹拌して４〜２４時間放置
した。その後、この塗料組成物に対しチタニウムブチレ
ート（Ｔ　ｉ　　（ＯＣａ　Ｈ９）、）３０重量％、塩
酸０．０５重量％を添加撹拌し５時間放置した。これを
スライドガラスへ塗装し、４００℃の温度で３０分間焼
成して紫外線吸収塗膜付きスライドガラスを得た。(Example 3) Paint composition Ethyl silicate C8i (OC2H5),
) 43% by weight, butanol (C4H90H) 50% by weight
, 7% water by weight coating composition was stirred and allowed to stand for 4 to 24 hours. Thereafter, 30% by weight of titanium butyrate (T i (OCa H9)) and 0.05% by weight of hydrochloric acid were added to this coating composition with stirring and left for 5 hours. This was coated onto a slide glass and baked at a temperature of 400° C. for 30 minutes to obtain a slide glass with an ultraviolet absorbing coating.

これら実施例で得られた紫外線吸収塗膜付きスライドガ
ラスと比較例としてのガラス基材のみのスライドガラス
との紫外線吸収率（紫外線カツト率）および可視光透過
率を測定し、その結果を第１表に示す。なお、紫外線吸
収率、可視光透過率の測定は、試料に対し、第１図にみ
るように、分光光度計により、２００〜７８０μｍの分
光透過率（％）を求めることで得られる。すなわち、■
　紫外線吸収率（％） ・第１図のＢの面積を求める。The ultraviolet absorption rate (ultraviolet cut rate) and visible light transmittance of the slide glass with the ultraviolet absorbing coating obtained in these examples and the slide glass with only a glass base material as a comparative example were measured, and the results were reported in the first Shown in the table. The measurement of ultraviolet absorbance and visible light transmittance is obtained by determining the spectral transmittance (%) of a sample from 200 to 780 μm using a spectrophotometer, as shown in FIG. In other words,■
Ultraviolet absorption rate (%) - Find the area of B in Figure 1.

・　（Ａ＋Ｂ）の面積は、１８０ｎｍ　Ｘ　１００χ夕
１８０００となる。- The area of (A+B) is 180 nm x 100 x 18000.

・Ａの面積は、１８０００−Ｂの面積で求められる。-The area of A is determined by the area of 18000-B.

・従って、紫外線吸収率（ＣＰ）は次の弐で求められる
。・Therefore, the ultraviolet absorption rate (CP) can be found as follows.

■　可視光ｖＡ透過率（％） ・第１図のＤ面積を求める。■ Visible light vA transmittance (%) - Find the area D in Figure 1.

・　（Ｃ＋Ｄ）の面積は、４００ｎｍ　Ｘ　１００χ＝
４００００となる。・The area of (C+D) is 400nm x 100χ=
It becomes 40,000.

・従って、可視光線透過率（Ｔ）は次の式で求められる
。・Therefore, the visible light transmittance (T) is determined by the following formula.

のようにして求められるようになっている。It can be found as follows.

第　　　１　　　表 Ｃ発明の効果〕 この発明の紫外線吸収塗膜付き透明基材は、以上のよう
に構成されているので、紫外線の吸収効率がよく、安定
で、かつ、生産コストが低減できる。Table 1: Effects of the Invention] The transparent substrate with the ultraviolet absorbing coating of the present invention is configured as described above, so it has good ultraviolet absorption efficiency, is stable, and can reduce production costs.

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

第１図は、実施例の紫外線吸収率および可視光透過率を
測定するのに用いたグラフである。FIG. 1 is a graph used to measure the ultraviolet absorbance and visible light transmittance of Examples.

Claims (5)

【特許請求の範囲】[Claims] （１）透明基材表面に紫外線吸収性金属酸化物微粒子が
分散されている塗膜が形成されてなる紫外線吸収塗膜付
き透明基材。(1) A transparent substrate with an ultraviolet-absorbing coating film, which has a coating film in which ultraviolet-absorbing metal oxide fine particles are dispersed on the surface of the transparent substrate. （２）金属酸化物が酸化チタンである特許請求の範囲第
１項記載の紫外線吸収塗膜付き透明基材。(2) A transparent substrate with an ultraviolet absorbing coating according to claim 1, wherein the metal oxide is titanium oxide. （３）酸化チタンが０．１μｍ以下のものである特許請
求の範囲第２項記載の紫外線吸収塗膜付き透明基材。(3) A transparent substrate with an ultraviolet absorbing coating according to claim 2, wherein the titanium oxide has a diameter of 0.1 μm or less. （４）酸化チタンの分散量が塗膜の５〜１０重量％であ
る特許請求の範囲第２項または第３項記載の紫外線吸収
塗膜付き透明基材。(4) The transparent substrate with an ultraviolet absorbing coating according to claim 2 or 3, wherein the amount of titanium oxide dispersed is 5 to 10% by weight of the coating. （５）透明基材がガラスである特許請求の範囲第１項な
いし第４項のいずれかに記載の紫外線吸収塗膜付き透明
基材。(5) A transparent substrate with an ultraviolet absorbing coating according to any one of claims 1 to 4, wherein the transparent substrate is glass.
JP29126785A 1985-12-23 1985-12-23 Transparent substrate coated with ultraviolet ray absorbing film Pending JPS62148339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29126785A JPS62148339A (en) 1985-12-23 1985-12-23 Transparent substrate coated with ultraviolet ray absorbing film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29126785A JPS62148339A (en) 1985-12-23 1985-12-23 Transparent substrate coated with ultraviolet ray absorbing film

Publications (1)

Publication Number Publication Date
JPS62148339A true JPS62148339A (en) 1987-07-02

Family

ID=17766658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29126785A Pending JPS62148339A (en) 1985-12-23 1985-12-23 Transparent substrate coated with ultraviolet ray absorbing film

Country Status (1)

Country Link
JP (1) JPS62148339A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01297179A (en) * 1988-05-26 1989-11-30 Kansai Paint Co Ltd Method for preventing deterioration in coating film
JPH0256610A (en) * 1988-08-23 1990-02-26 Hitachi Kiden Kogyo Ltd Optical guidance system for moving vehicle
JPH0275683A (en) * 1988-09-13 1990-03-15 Japan Carlit Co Ltd:The Ultraviolet and infrared absorber and method of application thereof
US6115171A (en) * 1997-01-23 2000-09-05 Nippon Mitsubishi Oil Corporation Electrochromic device
CN103613280A (en) * 2013-11-22 2014-03-05 福耀玻璃工业集团股份有限公司 Coating liquid for forming ultraviolet absorbing coatings and ultraviolet absorbing glass

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01297179A (en) * 1988-05-26 1989-11-30 Kansai Paint Co Ltd Method for preventing deterioration in coating film
JPH0256610A (en) * 1988-08-23 1990-02-26 Hitachi Kiden Kogyo Ltd Optical guidance system for moving vehicle
JPH0275683A (en) * 1988-09-13 1990-03-15 Japan Carlit Co Ltd:The Ultraviolet and infrared absorber and method of application thereof
US6115171A (en) * 1997-01-23 2000-09-05 Nippon Mitsubishi Oil Corporation Electrochromic device
CN103613280A (en) * 2013-11-22 2014-03-05 福耀玻璃工业集团股份有限公司 Coating liquid for forming ultraviolet absorbing coatings and ultraviolet absorbing glass
US11015068B2 (en) 2013-11-22 2021-05-25 Fuyao Glass Industry Group Co., Ltd Coating liquid used for forming ultraviolet absorption coating and ultraviolet absorption glass

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