CN1207068A

CN1207068A - Glass articles coated with solar control coatings

Info

Publication number: CN1207068A
Application number: CN 97191560
Authority: CN
Inventors: R·J·麦库戴; D·A·斯特里克勒
Original assignee: Libbey Owens Ford Co
Current assignee: Pilkington North America Inc
Priority date: 1996-09-13
Filing date: 1997-09-10
Publication date: 1999-02-03

Abstract

公开了一种涂有日光控制涂层的玻璃制品,它可用来生产建筑用玻璃窗的减热玻璃。这涂膜制品包括一块玻璃基质、一层淀积并粘结在这玻璃基质表面上的虹彩色抑制夹层。至少一层淀积并粘结在这虹彩色抑制涂层表面上的第一透明涂层和至少一层淀积并粘结在这第一透明涂层表面上的第二透明涂层。这第一透明涂层和第二透明涂层在近红外光谱区中的折射率差比在可见光谱区中的折射率差要大。建筑用玻璃窗上使用本制品将导致玻璃窗能排除在近红外光谱区中的太阳能而同时又允许有高度的可见光透射比。Disclosed is a glass article coated with a solar control coating that can be used to produce heat-reducing glass for architectural windows. The coated article comprises a glass substrate, an iridescence-suppressing interlayer deposited and bonded to a surface of the glass substrate, at least one first transparent coating layer deposited and bonded to a surface of the iridescence-suppressing coating layer, and at least one second transparent coating layer deposited and bonded to a surface of the first transparent coating layer. The first and second transparent coating layers have a greater refractive index difference in the near-infrared spectral region than in the visible spectral region. Use of this article in architectural glazing results in glazing that rejects solar energy in the near-infrared spectral region while simultaneously allowing for a high degree of visible light transmittance.

Description

Scribble the glassware of solar control coating

Background of invention

1. invention field

The present invention relates to a kind of coated glass goods that scribble solar control coating.More specifically, the present invention relates to a kind of coating stack layer that is coated on the glass matrix, this stack layer comprises that iridescent colors suppresses interlayer, first clear coat and second clear coat, thus make goods between visible range and near-infrared spectra district, have the selectivity of height.This selectivity, or the decay of the transmittance of visible light and near-ir energy is in the visible range similar refractive index to be arranged and have at least the first and second clear coats of different refractivity to finish in the near infrared spectrum district by utilization.Preferred coated glass goods make it present neutral colour by being coated in the coating on the transparent glass substrate.

2. summary of related art.

Usually, the coating on the glass for building purposes is used to provide unit energy fade performance and transmittance performance.In addition, coating is provided at aesthetic charming, the reflecting properties and the spectral characteristic that require.Be coated with membrane product usually individually or with the use that combines of other glassware, thereby form windowpane or air regulator device.

The feature of coated glass matrix depends on the specific coating that is coated on this matrix.The composition of coating and thickness are given and being coated with in the membrane product with energy attenuation performance and light transmittance performance, also influence spectral characteristic simultaneously.By adjusting the composition or the thickness of coat or multiple coating layer, the feature that can obtain to require.But, for improving the adjustment that a certain particular characteristic carries out, other transmittance performance or the spectral characteristic of coated glass goods had adverse influence.When managing to be combined in unit energy fade performance and transmittance performance in the coated glass goods, the spectral characteristic that goes for requirement usually is difficult.

It is desirable to produce a kind of main coated glass goods of using for the building glass window, its not only can the decay near-ir energy but also far infrared energy of decaying allows the visible transmission ratio of height simultaneously.In addition, the preferred glass window all has neutral colour aspect transmittance and the reflectivity two, so that win the approval of family and building use.The decay of near-ir energy and far infrared energy can take place by reflex or absorption.But,, preferably radiation is reflected in order to get rid of radiation from system.Reflection to near-ir energy causes day transmittance to reduce, and the reflection of far infrared energy then guarantees low emissivity.Low emissivity can make the indirect daylight gain of heat that causes because of absorption reduce to minimum.

People's such as Taga U.S.4,504,109 disclose a kind of infrared shielding lamination that is positioned on the printing opacity matrix, and this lamination comprises staggered infrared shielding layer and the noisy reflection layer that applies.Energy in the infrared shielding layer reflect near infrared light spectrum.Scribble being coated with membrane matrix reflects infrared light and near infrared light and can not weakening the transmittance of visible light of above-mentioned lamination according to this patent.

Be the U.S.4 of people such as taga promulgation, 507,547 disclose a kind of heat wave shielding lamination, and this lamination utilization has two class infrared shielding layers of different optical characteristic to be laminated on the glass matrix separately interlacedly.These infrared shielding layers have different refractive indexes on infrared spectrum, but similar refractive index is arranged in the visible range, so that allow visible light by getting rid of infrared energy.

Usually, as in reverberation and transmitted light, usually presenting iridescent colors or interference colour at that based film glassware described in U.S.4504109 and the U.S.4507547.It would be desirable to provide does not have the glass for building purposes of iridescent colors window and is preferably all presenting transparent neutral colour aspect transmittance and the reflectivity two.The iridescent colors that is caused by dope for glass is a kind of unacceptable shortcoming to Application in Building.

So prior art proposes to want to reflect near-ir energy in coating on glass and allows visible light transmissive simultaneously.But, conventional coating or coating stack layer do not provide a kind of painting method, it can allow a selectivity that meets the requirements degree between transmitted light and infrared energy, exempt not only iridescent colors (thereby but also transmittance that can be on transparent glass substrate and reflectivity two aspect all present neutral colour) occurring.

Provide that a kind of the coated glass goods of high selectivity are arranged should be favourable between visible light and near-ir energy.The selectivity of height will allow visible light transmissive, a large amount of infrared energy of decaying simultaneously.The result of decay near-ir energy causes the solar energy transmittance to reduce, and therefore causes low shading factor.It is the desirable performance of glass for building purposes window than all that lower shading factor joins level visible transmission.

It also is favourable that the windowpane that reduces Exposure to Sunlight is provided, and this windowpane iridescent colors do not occur having charming aesthetically neutral colour aspect transmittance and the reflectivity two.

Providing a kind of can also be favourable reducing to the minimum windowpane that reduces Exposure to Sunlight by the indirect gain of heat of absorption generation.The energy charge that low solar energy transmittance and high total sun reflection will improve in building and the family is significantly used.

Summary of the invention

The invention provides a kind of glassware of novelty, it can be used for making the hot coated glass of using on the construction window that falls.This membrane product that is coated with comprises glass matrix, one deck deposit also is bonded in the lip-deep iridescent colors inhibition of glass matrix interlayer, deposit also is bonded in first clear coat of one deck at least and the deposit on the above-mentioned iridescent colors inhibition coating surface and is bonded in lip-deep second clear coat of one deck at least of above-mentioned first clear coat.Use goods of the present invention cause windowpane can get rid of solar energy but allow visible transmission ratio highly on the glass for building purposes window.

Specific coating stack layer on transparent glass substrate provide a kind of have high visible transmission than and the no iridescent colors of low total solar energy transmittance be coated with membrane product.For example, be under 1.5 the condition at air mass, on the thick transparent glass substrate of 3mm, it is higher at least 10 percentage points than solar heat transmission than (standard sources C) that the coated glass goods of making according to the present invention can demonstrate visible transmission.

According to the present invention, the iridescent colors in the coating stack layer on the glass matrix suppresses interlayer provides the method for a kind of reflection and refracted ray to disturb usual iridescent colors.Say that exactly this coating has been eliminated iridescent colors, so if desired, this is coated with membrane product all can be neutral colour aspect reflectivity and the transparent ratio two.In addition, this interlayer has suppressed the appearance to various off-colors.It is to be fit to use for the present invention that individual layer, multilayer or gradient type multilayered color-forming suppress coating.

First clear coat of the present invention and second clear coat have refringence in the near infrared spectrum district greater than the refringence in the visible range.Refringence in the near infrared spectrum district has formed one deck and can be used to reflect the interface of near-infrared radiation.Similar refractive index allows the visible transmission ratio of height in the visible range.

First clear coat is a kind of metal oxide, a kind of mixed-metal oxides or metal nitride of doping of doping normally.Normally a kind of metal oxide of second clear coat or contain the mixed oxide of silica.The selection of first and second clear coats is that according to the rules refractive index is made, so that produce the transmittance performance that requires.Above-mentioned coating also can have low emissivity, so that minimum is reduced in the gain of heat on the glass for building purposes window.

An object of the present invention is to provide a kind of hot coated glass goods of falling of glass for building purposes window that are suitable for.Coated glass goods of the present invention can the height visible light transmissive also can reflect near-ir energy in a large number.The present invention has utilized the refringence that has in the near infrared spectrum district than big first clear coat of one deck at least of the refringence in the visible range and one deck second clear coat at least.Refringence in the near infrared spectrum district provides one deck can play the interface of reflection near-infrared radiation effect.Similar refractive index in visible region allows the visible transmission ratio of height.The decay of near-ir energy causes being coated with membrane product and has low solar energy transmittance.

Another purpose of the present invention provides a kind ofly has low emissivity so that minimum glass for building purposes window is reduced in the indirect gain of heat that is caused by absorption.Normally a kind of low emissivity coatings of first clear coat of the present invention, it can reduce total emissivity of coated glass goods.

A further object of the invention is that a kind of coated glass goods that are suitable as the glass for building purposes window will be provided, and it keeps simultaneously the visible transmission ratio that requires again all having neutral colour aspect reflectivity and the transmittance two.The special iridescent colors that applies of one deck that comprises coating stack layer of the present invention suppresses interlayer might keep neutral colour to disturb the observation of rainbow light and to make whereby.Description of Preferred Embodiments

According to the present invention, shockingly find, have the one deck of comprising iridescent colors and suppress layer, at least one deck first clear coat, at least the coated glass goods of the laminated coating of one deck second clear coat can provide a kind of a large amount of decay near infrared ray energy to allow the goods of the visible transmission ratio of height simultaneously again.These coated glass goods mainly are suitable for windowpane for building and window.But coated glass goods of the present invention are also applicable to other occasion, for example the window of delivery vehicle.

According to the present invention, be suitable for preparing the glass matrix of coated glass goods, can comprise and know the transparent or light glass composition of any routine that can be used for preparing the glass for building purposes window in the prior art.Preferred matrix is a kind of transparent float glass band that on the thermal treatment zone of float glass process coating of the present invention is applied on it.Other light matrix also can be used as and apply the matrix that coating of the present invention is used.Can select light matrix, so that in being coated with membrane product, have specific spectral characteristic.

Iridescent colors of the present invention suppresses the method that interlayer provides a kind of reflection and refracted ray, to disturb the appearance to iridescent colors.In this area iridescent colors is suppressed the existing general understanding of coating.For example, herein as the U.S.4187336 with reference to introducing, U.S.4419386 and U.S.4206252 have narrated and have been applicable to the membrane technology that is coated with that suppresses various interference colours.Interlayer of the present invention can comprise that the individual layer iridescent colors suppresses layer, a kind of double-component coat, or a kind of gradient type coating.

Transmission of coated glass matrix and catoptrical color can be measured according to CIELAB (international aberration measure formula) a* and b* colour code coordinate system.Positive a* numeral red tone, and negative value is represented green tone.Positive b* numeral yellow and negative value is represented blueness.The saturation value c* of color is relevant with the appearance to iridescent colors, and it is defined as a* ²+ b* ²Square root.Saturation value that the coated glass goods have or c* will can not present iridescent colors during less than 12 units.

Under the interlayer situation of one-component, can realize between interlayer glass matrix and that be deposited on the median between the coating on this interlayer by selecting refractive index for use the inhibition of iridescent colors.Middle refractive index causes having the boundary reflection of the light of identical wavelength.The thickness of interlayer is elected 1/4 of design wavelength 500nm as, just can play the effect of offsetting back wave and therefore play the effect that suppresses iridescent colors.Compounds suitable for use comprises metal oxide or metal nitride.Most preferred composition is a siloxicon.

Under the situation of bi-component interlayer, deposit and this coating that is bonded on the glass matrix have high refractive index in the visible range.Second coating with low-refraction is deposited and is bonded on first coating of interlayer.The selection of the thickness of each interlayer makes the total optical thickness of the combination that interlayer forms be about about 1/6～about 1/12 of design wavelength 500nm.

The coating that is suitable as high refractive index coating comprises various metal oxides and the nitride that appropriate refractive index is arranged, and their mixture.Preferably the coating of using for the present invention is tin oxide.The low refractive index coating of interlayer can comprise silica, polysiloxanes, magnesia and ice crystal, and silica then is preferred coating.

According to the present invention, the gradient type coating can be used as iridescent colors and suppresses layer.The gradient type coating generally includes one deck carries out the transition to another kind of metal oxide film or nitride film gradually from a kind of metal oxide film or nitride film thin layer.Therefore, form change and can cause refraction index changing and suppress iridescent colors that for example, single gradient type coating can comprise silica, is transited into tin oxide, stannic acid cadmium, silicon nitride, titanium oxide or indium oxide then gradually.

Iridescent colors suppresses interlayer and by conventional thin film coated method of operating it is applied on the glass matrix.For example, can utilize chemical vapor deposition techniques or other pyrolytic technique of knowing known, on the thermal treatment zone of float glass process, above-mentioned interlayer is coated on the float glass matrix.

First clear coat and second clear coat in multiple-level stack layer of the present invention are designed to the near-ir energy that a large amount of reflection wavelengths are about 700nm～2000nm, the visible light of energy height transmission peak wavelength between 400nm～700nm discussed with accumulated value simultaneously.Each coating all also can absorb near-infrared radiation, so further reduced the solar energy transmittance that is coated with membrane product.

The reflection of near-ir energy is that the high and low refractive index with design wavelength realizes in near-infrared region by adopting.Difference between high refractive index layer and the low-index layer has increased the width of the zone of reflections in the near-infrared region, thereby has got rid of near-infrared radiation.

The transmittance of visible light be rely on select for use, have in the visible range first and second clear coats of similar refractive index and realize.The refractive index of the above-mentioned clear coat of selecting for use in visible region each other should be in about 0.2 unit.Similar refractive index allows the light of transmission and reflection neutral colour.In addition, the similitude of refractive index makes us can utilize above-mentioned interlayer to suppress color in the visible range, because first and second layers are equivalent to independent one deck in the visible range.

First clear coat of the present invention is deposited and is bonded on the surface of iridescent colors inhibition interlayer.First clear coat can comprise the conductive coating that one deck also has low-launch-rate numerical value.The adulterant of knowing by adding can make coating have electric conductivity.Doping oxide is owing to wherein there being free electron to make it in near-infrared region low-down refractive index be arranged, and therefore allow to select for use second clear coat with high index of refraction, so that on the interface between first and second clear coats, set up a near-infrared reflection face.

According to the present invention, first clear coat can be selected from zinc oxide, stannic acid cadmium, zinc stannate, tungsten oxide, the tungsten oxide of mixing fluorine, titanium nitride and the vanadium nitride etc. of indium oxide, the indium oxide of mixing fluorine, the tin oxide of mixing fluorine of mixing tin, the tin oxide of mixing antimony, the zinc oxide of mixing aluminium, the zinc oxide of mixing fluorine, boron-doping.Preferred compound is an indium oxide of mixing tin.

The electric conductivity of above-mentioned oxide depends on the electron carrier density and the electron mobility of coating.Free carrier also provides the near-ir energy decay by absorption.So, then can not absorbed by the free carrier in first clear coat by the near-ir energy that difference reflected away of the refractive index between first and second clear coats.In addition, free carrier reflects certain far infrared radiation.This result is the purpose that reflection and the combination that absorbs the two have reached decay solar energy.The preferred support density of above-mentioned conductive film be every cubic centimetre greater than 5 * 10 ²⁰

Like this, first clear coat can comprise the low-launch-rate performance again, so this coating can be reduced to minimum with the gain of heat by absorption.The low-launch-rate of coating will be reduced to minimum by the indirect gain of heat that absorption causes, thus can be for using summer, can also produce a kind of have a low U value be coated with membrane product for using winter.The radiant heat that low emissivity coatings has limited glass after radiation absorbs inwardly conducts.

First clear coat is to be coated with on the membrane matrix by adopting conventional deposition technology to be deposited on.For example, can on the thermal treatment zone of float glass process, this coating be coated on the banded matrix of glass.Other conventional method of deposit first clear coat all is suitable for using for the present invention.

According to the membrane product that is coated with of the present invention, second clear coat is deposited and is bonded on the surface of first clear coat.Above-mentioned clear coat has the refractive index different with the refractive index of first clear coat in the near infrared spectrum district.The example that the coating that is suitable for using for the present invention is formed comprises tin oxide, titanium oxide, aluminium oxide, indium oxide, zinc oxide or is mixed with the metal oxide of silica.It is tin oxide that preferred coating is formed.

Second clear coat of the present invention can adopt the conventional method preparation of knowing in the prior art.For example, suitable coating can be passed through metallo-organic compound or other metallic compound, or their mixture, the decomposition under oxidation environment and being deposited on first clear coat.The metal oxide coating that makes metal oxide coating or be mixed with silica other method on the matrix of being coated in all be suitable for being used for implementing of the present invention.

Inter coat is similar to second clear coat, can before applying first clear coat it be coated in iridescent colors and suppress on the interlayer.The inter coat of deposit causes the coating stack layer to contain one deck has low-refraction in the near infrared spectrum district thin layer, and it is located at the near infrared spectrum district has between two thin layers of high index of refraction.This high/low/high design relies on the reflection of setting up a broad to bring the reflection near-ir energy near-ir energy that decays.These thin layers all have similar refractive index at visible region, thereby allow the visible transmission ratio of height.Under the situation of high refractive index film as external coating, a kind of low/high stack layer design can repeat once on/high stack layer high/low at first at least, so that further improve the decay to near-ir energy.The coating composition that is used for second clear coat all is suitable for using for above-mentioned inter coat.

Coated glass goods of the present invention can comprise the glass matrix of any thickness that may accomplish according to float glass process.But preferred glass matrix is 0.125 inch thick clear glass.The thickness of first and second clear coats depends on the solar performance that stack layer is required.For example, the first euphotic thickness can be 2500～4500 dusts, and the second euphotic thickness can be 800～1500 dusts.About above-mentioned relatively embodiment, the thickness of inter coat can be 800～1500 dusts.

Be coated in the laminated coating of the present invention on the transparent glass substrate, can cause making the coated glass goods all presenting neutral colour aspect reflectivity and the transmittance two.This color by stack layer form and thickness is determined.Preferably have a* value that is about 0 and the b* value that is about 0 from the reflected colour glass matrix marginal test and that determine by the CIELAB Munsell system that is coated with membrane product.That measure from the coating edge that is coated with membrane product and preferably have approximately-2 a* value and be about-4 b* value by the transmitted colour that the CIELAB Munsell system is determined.The transmitted colour of goods and reflected colour all preferably meet the neutral colour of aesthetic view point, and this moment is according to a* ²+ b* ²The saturation of color of these goods of determining of square root, i.e. c* is less than 12 units.

The resulting membrane product that is coated with of the present invention, in the time of on being coated in the thick transparent glass substrate of nominal 3mm, air mass be under 1.5 the condition according to the regulation among the ASTME891-87, the transmittance (standard sources C) that these goods demonstrate visible light is higher at least 10 percentage points than total solar heat transmittance accumulation.When preferably being coated with membrane product and being the thick transparent glass substrate of nominal 3mm, tin oxide, silica, the indium oxide of mixing tin and tin oxide, visible transmission is at least 60% total solar radiant heat transmittance then less than 50% than (standard sources C).The solar heat transmittance that the coated glass goods are low causes shading factor to be not more than 0.65.

The coated glass goods are ideally suited for the glass for building purposes window.For example, can utilize this coated glass goods on the heat-protecting glass device, goods wherein of the present invention play the auxiliary clear glass goods of outer side window as interior then window.

The heat-protecting glass device will pass to the heat drop of inside configuration extremely minimum from absorption window or transparent glass substrate.If what first clear coat used is low emissivity coatings, then can be with the indirect gain of heat, or the transmission that absorbs radiation reduced to minimum.Low-launch-rate glass-reflected or change make its back radiation source by the photothermal direction that warm object produces.In addition, coated glass matrix is the glass plate that is fit to external application, and this glass plate makes by wind-induced outside convection current can will flow to inner heat drop to minimum.Low-emissivity energy of the present invention and near-infrared fade performance cause producing a kind of heat-protecting glass device, and it can get rid of sun heat radiation in summer, and demonstrates low U value, perhaps can keep heat in winter.

According to optimum implementation of the present invention, utilize the heat-protecting glass device of coated glass goods of the present invention to demonstrate specific transmittance and spectral characteristic.The solar heat transmittance of this heat-protecting glass device is less than 50%.This heat-protecting glass device also demonstrate visible transmission than (standard sources C) greater than 60%, be preferably greater than 65%.The shading factor of this device is not more than 0.65.This heat-protecting glass device has the effective emission value less than 0.2.This low emission value is corresponding to less than 0.5 U value.

Above-mentioned heat-protecting glass device is all preferably showing neutral colour aspect reflectivity and the transmittance two.According to determining in the CIELAB Munsell system, the color saturation value of this device is about 12, and preferred value is about 8.

Constituting the inventor, to imagine the following example of implementing optimal mode of the present invention at present all be in order to be used for further explanation and disclose of the present inventionly, can not to think a kind of restriction of the present invention.

Example I

Provide transparent glass substrate to be used for deposit coating of the present invention.Glass matrix is one section thick float glass belt of 0.125 inch producing by the float glass method in advance.It is to be deposited on this glass matrix on the thermal treatment zone of float glass process that iridescent colors suppresses interlayer.Iridescent colors suppresses the doped tin oxide coatings that layer comprises one deck deposit and is bonded in thick 250 dusts on the glass matrix.Tin oxide is to utilize CVD method to be applied on the surface of matrix in oxidation environment by introducing dimethyltin chloride on the thermal treatment zone of float glass process.

The silica dioxide coating of thick about 250 dusts is near the stromal surface in the thermal treatment zone of float glass process, under the condition of aerobic, utilizes the dichlorosilane react and is applied on the surface of doped tin oxide coatings.

Applying before first and second clear coats of the present invention, be placed in the conventional dish-shaped washer and wash scribbling transparent glass substrate that iridescent colors suppresses interlayer.Clean matrix to remove any organic impurities on the sandwiching surface.

The indium oxide of mixing tin utilizes standard magnetron cathode method for sputtering to carry out deposit.The (cathode) sputtering operation is the routine techniques of knowing.

Doped tin oxide coatings is deposited on the surface of the indium oxide coating of mixing tin.Doped tin oxide coatings also utilizes standard magnetron cathode sputtering method to be deposited to 120nm thickness.

The coated glass goods that obtain demonstrate visible transmission and are about 60% total solar heat transmittance then less than 50% than (standard sources C).These goods all are being neutral colour aspect reflectivity and the transmittance two.Shading factor is measured as 0.65.

Example II

Make the membrane product that is coated with of 100mm * 100mm according to example I.But the indium oxide coating of mixing tin in this example is to utilize diameter to apply for the circular magnetron of 203mm.This coated glass goods are used as the outer side window that is equipped with towards the multiple-level stack layer of the present invention of this inside configuration in the heat-protecting glass device.Transparent glass substrate is used as the interior side window of heat-protecting glass device, and is placed on from the above-mentioned membrane product 12mm place that is coated with.

Said apparatus has 45.9% total solar heat transmittance and 68.7% visible transmission ratio.This device is all demonstrating neutral colour aspect reflectivity and the transmittance two.The shading factor of this device is measured as 0.534.

Prediction example I

Float glass process is used to produce that a kind of to have thickness be 0.125 inch float glass belt.In producing the process of float glass belt, the CVD method by routine sequentially is coated in four kinds of coatings on the glass matrix in the floating groove.The ground floor doped tin oxide coatings is deposited and is bonded on the surface of glass matrix to about 301 dusts of thickness.Then, the thickness silica dioxide coating that is about 249 dusts is deposited on the surface of doped tin oxide coatings.Ground floor doped tin oxide coatings and silica dioxide coating form iridescent colors and suppress interlayer.The indium oxide coating of mixing tin that thickness is about 2475 dusts is deposited on the surface of silica.The doped tin oxide coatings of outermost thick about 1337 dusts is deposited on the surface of the indium oxide coating of mixing tin.

Originally being coated with membrane product is transferred out through whole float glass process.Cut said products then, its size is according to determining as the layout of outer hand hay cutter window in the heat-protecting glass device.Clear glass is as interior side window.Above-mentioned heat-protecting glass device has 1/8 inch interval or space between side window and the interior side window outside, is full of argon gas in it.

Drade (De Lute) parameter of mixing the indium oxide coating of tin comprises every cubic metre about 1.0 * 10 ²⁷Electron concentration and about 0.35 effective mass.The high-frequency dielectric constant of this coating is about 3.0, and this moment, scattering frequency was about per second 0.30 * 10 ¹⁵

This heat-protecting glass device owing to adopt the coated glass goods as the outer side window that is equipped with towards the multiple-level stack layer of the present invention of this inside configuration, thereby demonstrates the transmittance performance that favourable color and the present invention have.This heat-protecting glass device should have meet aesthetic view point in and transmitted colour, do not observe iridescent colors simultaneously.This heat-protecting glass device should have about 70% the visible transmission total solar heat transmittance than (standard sources C) and about 44%.The shading factor of this heat-protecting glass device should be about 0.57.

Prediction example II

Float glass process is used to produce a kind of 0.125 inch thick float glass belt that has.In the process of producing float glass belt, four kinds of coatings sequentially are coated on the glass matrix according to disclosed method in prediction example I.The ground floor doped tin oxide coatings is applied to thickness and is about 318 dusts.Silica dioxide coating is deposited to thickness and is about 272 dusts.Ground floor doped tin oxide coatings and silica dioxide coating form iridescent colors and suppress interlayer.The indium oxide coating of mixing tin is deposited to thickness and is about 3495 dusts.Outermost doped tin oxide coatings is applied to thickness and is about 916 dusts.

Originally be coated with membrane product and be transferred out through whole float glass process, it is cut afterwards, and its size is according to determining as the layout of outer side window in the heat-protecting glass device.

This heat-protecting glass device owing to adopt the coated glass goods as the outer side window that is equipped with towards the multiple-level stack layer of the present invention of this inside configuration, thereby demonstrates the transmittance performance that favourable color and the present invention have.This heat-protecting glass device should have meet aesthetic view point in and transmitted colour, do not observe iridescent colors simultaneously.This heat-protecting glass device should have about 63% the visible transmission total solar energy transmittance than (standard sources C) and about 39%.The shading factor of this heat-protecting glass device should be about 0.52.

Prediction example III

Float glass process is used to produce a kind of 0.125 inch thick float glass belt that has.In producing the process of float glass belt, the CVD method by routine sequentially is coated in five kinds of coatings on the glass matrix in the floating groove.The ground floor doped tin oxide coatings is deposited and is bonded on the surface of glass matrix, about 118 dusts of thickness.Then, the thickness silica dioxide coating that is about 119 dusts is deposited on the surface of doped tin oxide coatings.Above-mentioned two layers of formation iridescent colors at first suppress interlayer.Second layer doped tin oxide coatings is deposited and is bonded on the silica coating.Second layer doped tin oxide coatings has the thickness of about 1259 dusts.The tin-doped indium oxide coating that thickness is about 2496 dusts is deposited on the second layer doped tin oxide coatings surface.The doped tin oxide coatings of outermost thick about 1146 dusts is deposited on the surface of tin-doped indium oxide coating.

Originally being coated with membrane product is transferred out through whole float glass process.Cut said products then, its size is according to determining as the layout of outer side window in the heat-protecting glass device.Clear glass is as interior side window.Above-mentioned heat-protecting glass device has 1/8 inch interval or space between side window and the interior side window outside, is full of argon gas in it.

This heat-protecting glass device owing to adopt the coated glass goods as the outer side window that is equipped with towards the multiple-level stack layer of the present invention of this inside configuration, thereby demonstrates the transmittance performance that favourable color and the present invention have.This heat-protecting glass device should have meet aesthetic view point in and transmitted colour, do not observe iridescent colors simultaneously.This heat-protecting glass device should have about 68% the visible transmission total solar energy transmittance than (standard sources C) and about 43%.The shading factor of this heat-protecting glass device should be 0.56.

Prediction example IV

Float glass process is used to produce a kind of 0.125 inch thick float glass belt that has.In the process of producing float glass belt, five kinds of coatings sequentially are coated on the glass matrix according to disclosed method in observation example III.The ground floor doped tin oxide coatings is applied to thickness and is about 272 dusts.Silica dioxide coating is deposited to thickness and is about 333 dusts.Above-mentioned two layers of formation iridescent colors at first suppress interlayer.Second layer doped tin oxide coatings is deposited to thickness and is about 1074 dusts.The indium oxide coating of mixing tin is deposited to thickness and is about 3463 dusts.Outermost doped tin oxide coatings is applied to thickness and is about 1061 dusts.

Originally being coated with membrane product is transferred out through whole float glass process.It is cut afterwards, and its size is according to determining as the layout of outer side window in the heat-protecting glass device, as disclosed in prediction example III.

This heat-protecting glass device is owing to adopt the coated glass goods as the outer side window that is equipped with towards the multiple-level stack layer of the present invention of this inside configuration, because of then demonstrating the transmittance performance that favourable color and the present invention have.This heat-protecting glass device should have meet aesthetic view point in and transmitted colour, do not observe iridescent colors simultaneously.This heat-protecting glass device should have about 64% the visible transmission solar energy transmittance than (standard sources C) and about 39%.The shading factor of this heat-protecting glass device should be about 0.51.

Claims

1. A coated glass product comprising:

(a) a glass substrate having a surface;

(b) an iridescence suppressing interlayer deposited and bonded on the surface of the glass substrate;

(c) a first transparent coating layer deposited and bonded to the iridescent suppression interlayer;

(d) a second transparent coating layer deposited and bonded on the first transparent coating layer, said first transparent coating layer and said second transparent coating layer have a refractive index difference in the near infrared region Greater than the refractive index difference in the visible region, where these coatings, including the above-mentioned interlayers, when applied to a nominally 3 mm thick transparent glass substrate, give the glass article a visible light transmission at an air mass of 1.5 Ratio (standard illuminant C) is at least 10 percent higher than the cumulative solar heat transmittance.

2. The coated glass article of claim 1, wherein the coatings, including interlayers, when applied to a transparent glass substrate, provide a neutral color in both transmittance and reflectance.

3. The coated glass article of claim 2, wherein said article exhibits a color intensity of less than 12 units as determined in accordance with the CIELAB chromaticity coordinate system.

4. The coated glass article of claim 1, wherein said coated glass article has a visible light transmittance (standard illuminant C) of at least 60% and less than 50% when coated on a nominally 3 mm thick transparent glass substrate The solar thermal transmittance of .

5. The coated glass article of claim 1, wherein said glass substrate is a ribbon of clear float glass.

6. The coated glass article of claim 1, wherein said first transparent coating is selected from the group consisting of tin-doped indium oxide, fluorine-doped indium oxide, fluorine-doped tin oxide, antimony-doped tin oxide, aluminum-doped zinc oxide , fluorine-doped zinc oxide, boron-doped zinc oxide, cadmium stannate, zinc stannate, tungsten oxide, fluorine-doped tungsten oxide, titanium nitride and vanadium nitride.

7. The coated glass article of claim 1, wherein the first clear coat layer has a carrier density greater than about 5 x ¹⁰²⁰ per cubic centimeter.

8. The coated glass article of claim 1, wherein said second transparent coating layer is selected from the group consisting of tin oxide, titanium oxide, aluminum oxide, indium oxide, zinc oxide, and metal oxides mixed with silicon dioxide.

9. The coated glass article of claim 1, wherein said interlayer has a refractive index approximately equal to the square root of a multiple of the refractive indices of said glass, said first clear coat, and said second clear coat, The interlayer has a total optical thickness of about 1/4 of the design wavelength of 500 nm.

10. The coated glass article of claim 1, wherein said interlayer further comprises the following bicomponent layer;

(a) a first component layer of relatively high index refractive index material deposited and bonded to said glass substrate;

(b) a second component layer of relatively low refractive index material deposited and bonded to the first component layer, wherein each component layer has a thickness such that the combined interlayer forms an iridescent color The total optical thickness of the suppression coating is about 1/6-1/12 of the design wavelength of 500nm.

11. The coated glass article of claim 1, further comprising an intermediate coating deposited on and bonded to said iridescence suppressing interlayer, said intermediate coating having a refractive index in the near infrared region similar to that of a second transparent coating.

12. A coated glass product comprising:

(a) a glass substrate having a surface;

(c) a coating of tin-doped indium oxide deposited and bonded to said iridescence suppressing interlayer;

(d) a layer of tin oxide coating deposited and bonded on the tin-doped indium oxide coating, the tin-doped indium oxide coating and the tin oxide coating have a refractive index in the near infrared region The difference is greater than the refractive index difference in the visible region, where these coatings, including the interlayers described above, when coated on a nominally 3 mm thick transparent glass substrate, give the glass article visible light at an air mass of 1.5 The transmittance (Standard Illuminant C) is at least 10 percent higher than the cumulative solar heat transmittance.

13. The coated glass article of claim 12, wherein the coated glass article has an emissivity of less than or equal to about 0.2.

14. The coated glass article of claim 12, wherein said iridescent suppression interlayer comprises a tin oxide coating deposited and bonded to the surface of said glass substrate, and a tin oxide layer deposited and bonded to said tin oxide Silicon oxide coating.

15. The coated glass article of claim 12, wherein said interlayer has a refractive index approximately equal to the square root of a multiple of the refractive indices of said glass, said first transmissive coating, and said second transmissive coating, And the total optical thickness is about 1/4 of the design wavelength of 500nm.

16. The coated glass article of claim 12, wherein said interlayer further comprises a bicomponent layer of,

(1) a first component layer of a material with a relatively high index of refraction index deposited and bonded to the above-mentioned glass substrate;

(2) A second component layer of relatively low refractive index material deposited and bonded to the first component layer, wherein each component layer has a thickness such that the combined interlayer forms an iridescent color The total optical thickness of the suppression coating is about 1/6-1/12 of the design wavelength of 500nm.

17. The coated glass article of claim 12, wherein the coatings, including said interlayer, when applied to a nominally 3 mm thick transparent glass substrate, provide both transmittance and reflectance. Neutral colors.

18. The coated glass article of claim 17, wherein said article exhibits a color shade less than 12 as determined in the CIELAB chromaticity coordinate system.

19. The coated glass article of claim 12, wherein said coated glass article has a visible light transmittance (standard illuminant C) of at least 60% and a solar radiation of at least 50% when coated on a nominally 3mm thick transparent glass substrate. thermal transmittance.

20. The coated glass article of claim 12, wherein the tin-doped indium oxide coating has a carrier density greater than 5 x ¹⁰²⁰ per cubic centimeter.

21. A coated glass product comprising:

(a) a glass substrate having a surface;

(b) an iridescence suppressing interlayer deposited and bonded to the above-mentioned surface of the glass substrate;

(c) an intermediate coating deposited and bonded to said iridescent suppression interlayer;

(d) at least one layer is deposited and adhered to the first transparent coating layer on the above-mentioned intermediate layer interlayer;

(e) at least one second transparent coating layer deposited on and bonded to said first transparent coating layer, said intermediate coating layer and said second transparent coating layer have similar The refractive index of the first transparent coating layer and the second transparent coating layer have a refractive index difference in the near-infrared region greater than that in the visible light region, wherein when these coatings including the above-mentioned interlayer When coated on a nominally 3 mm thick clear glass substrate, they provide glass articles with a visible light transmittance (standard illuminant C) at an air mass of 1.5 that is at least 10 percent higher than the cumulative solar heat transmittance.

22. The coated glass article of claim 21, wherein said first transparent coating is selected from the group consisting of tin-doped indium oxide, fluorine-doped indium oxide, fluorine-doped tin oxide, antimony-doped tin oxide, aluminum-doped zinc oxide , fluorine-doped zinc oxide, boron-doped zinc oxide, cadmium stannate, zinc stannate, tungsten oxide, fluorine-doped tungsten oxide, titanium nitride, and vanadium nitride.

23. The coated glass article of claim 4, wherein said intermediate coat and said second clear coat are selected from the group consisting of tin oxide, titanium oxide, aluminum oxide, indium oxide, zinc oxide, and metals mixed with silica oxide.

24. An insulating glazing unit for use as a window in a building, comprising a coated glazing as defined in claim 1.

25. The insulating glazing unit of claim 24, wherein said insulating glazing unit has a neutral color in both transmittance and reflectance.

26. The insulating glazing unit of claim 24, wherein said insulating glazing unit has a shading coefficient of not greater than 0.65.

27. The insulating glazing unit of claim 24, wherein said insulating glazing unit has a U-value of less than 0.5.