WO2009081077A2 - Vitrage decoratif - Google Patents
Vitrage decoratif Download PDFInfo
- Publication number
- WO2009081077A2 WO2009081077A2 PCT/FR2008/052397 FR2008052397W WO2009081077A2 WO 2009081077 A2 WO2009081077 A2 WO 2009081077A2 FR 2008052397 W FR2008052397 W FR 2008052397W WO 2009081077 A2 WO2009081077 A2 WO 2009081077A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lacquer
- glass
- layer
- sheet
- glazing
- 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.)
- Ceased
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F1/00—Designs or pictures characterised by special or unusual light effects
- B44F1/06—Designs or pictures characterised by special or unusual light effects produced by transmitted light, e.g. transparencies, imitations of glass paintings
- B44F1/066—Designs or pictures characterised by special or unusual light effects produced by transmitted light, e.g. transparencies, imitations of glass paintings comprising at least two transparent elements, e.g. sheets, layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10165—Functional features of the laminated safety glass or glazing
- B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
- B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
- Y10T428/24612—Composite web or sheet
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24851—Intermediate layer is discontinuous or differential
- Y10T428/24868—Translucent outer layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31627—Next to aldehyde or ketone condensation product
- Y10T428/3163—Next to acetal of polymerized unsaturated alcohol [e.g., formal butyral, etc.]
Definitions
- the present invention relates to a decorative glazing, in particular for use in partition, glazing, door, lighting cover, ceiling, wall covering, railing, stair step, shower door. .
- a lacquer is a non-transparent coating, which may be translucent, but is generally opaque, and which comprises at least one polymeric resin, at least one pigment, and generally mineral fillers.
- the polymeric resin serves to bind the pigments and mineral fillers, while the pigments are intended to impart the desired color and opacity.
- the lacquered glass thus produced can be fixed on walls, for example by means of adhesives. For reasons relating to aesthetics, durability, scratchability and safety, these glazings can not however be used as such as partitions or doors.
- GB 463,586 discloses various decorative glazings comprising two glass sheets and various decorations printed either on the glass or on membranes or fabrics arranged between the two sheets of glass. These windows are however unlikely to meet current standards in terms of safety, particularly in terms of impact and impact resistance. The adhesion between the different elements is also not optimized, which leads to problems of durability over time. The manufacturing processes are also complex and expensive.
- the subject of the invention is a laminated glazing unit comprising at least two glass sheets and at least one polyvinyl butyral interlay sheet and providing a connection between said glass sheets, characterized in that at least one layer of lacquer is disposed between the at least two sheets of glass.
- the subject of the invention is also a process for obtaining a glazing unit according to the invention, comprising the steps of placing at least one polyvinyl butyral polymer interlayer between at least one glass sheet previously coated with a layer of polyvinyl butyral. lacquer and at least one other sheet of glass, then subjecting the assembly to heat treatment under pressure to ensure the connection between said glass sheets.
- the glazings obtained meet the standards in force in terms of impact and impact resistance and durability.
- they meet the requirements of EN 14449: 2005, which defines the conformity of laminated glass and is classified 2B2 in accordance with EN 12600, which defines the impact resistance of glazing.
- EN 14449: 2005 which defines the conformity of laminated glass and is classified 2B2 in accordance with EN 12600, which defines the impact resistance of glazing.
- the decorative glazings according to the invention are able to be used as partitions, unlike glazing of the prior art.
- This point is particularly surprising because, although lacquered glasses on the one hand, and laminated glasses on the other hand, were well known for many years, no one had imagined that it was possible to flip lacquered glass at the same time. using PVB sheets and thus to solve inexpensively problems related to safety and aesthetics.
- the or each lacquer layer is advantageously in contact with the or each polymeric interlayer.
- the or each lacquer layer is preferably deposited in contact with a glass sheet.
- the or each layer of lacquer is preferably opaque and the or each intermediate polymer sheet is preferably transparent.
- the glazing according to the invention is preferably composed of two sheets of glass, a layer of lacquer deposited on a first sheet of glass, and a polymeric interlayer sheet in contact with said layer of lacquer and providing the connection between said first sheet of glass and a second sheet of glass.
- Other arrangements are however possible, for example comprising three sheets of glass, two polymeric interlayer sheets being arranged to ensure the connection between the three sheets of glass, a layer of lacquer being arranged on one of the glass sheets, in contact with one of the interlayers.
- the glazing according to the invention may also consist of two sheets of glass each coated with a layer of lacquer and a polymer interlayer sheet between these sheets of lacquered glass, which allows to obtain two different aesthetic aspects according to the side of the partition.
- the lacquer layer is included in the glazing, so is not in contact with the outside, and that the glazing is laminated, in the sense that the various glass sheets forming the glazing are bonded together by a polymeric interlayer sheet PVB.
- inner face refers to a face of a glass sheet facing another glass sheet of the glazing, and to an outside face to a face located outside the glazing, thus in contact with the glass. ambiant air.
- the or each intermediate polymer sheet is preferably flexible in order to facilitate the manufacture of the glazing according to the invention and to be able to meet the usual requirements in terms of resistance to impact and impact.
- the or each polymeric interlayer sheet is made of polyvinyl butyral (PVB), which has a number of advantages.
- PVB has a refractive index close to that of soda-lime glass commonly used for the production of glazing, so that the interlayer sheet is invisible or almost invisible and does not hide the lacquer layer. It is thus possible to see the lacquer layer on both sides of the glazing.
- PVB also makes it possible to absorb shocks very effectively and to retain glass fragments in the event of breakage of the glazing. In some cases, as explained in the rest of the text, the PVB can also confer acoustic insulation properties.
- the or each intermediate polymer sheet preferably has a thickness of between 0.1 and 10 mm, in particular between 0.38 and 2.28 mm, in particular between 0.38 and 0.76 mm, the thickness having an influence on shock resistance. It is possible to obtain an interlayer thickness of 0.76 mm thickness by superimposing two sheets of 0.38 mm each.
- the or each interlayer sheet may have improved acoustic insulation properties, in particular protection against solid and / or aerodynamic noises.
- it may be chosen for respect the criteria defined in one or more of the applications EP 0 100 701, EP 0 844 075 or EP 0 387 148.
- the intermediate sheet is chosen such that a bar of 9 cm in length and 3 cm wide, consisting of a laminated glass comprising two sheets of glass 4 mm thick joined by a sheet of interlayer 2 mm has a critical frequency which differs at most 35% from that of a bar of glass having the same length, the same width and 4 mm thickness.
- the intermediate sheet according to the application EP 0 844 075 has a loss factor tan ⁇ greater than 0.6 and a shear modulus G 'of less than 2.10 7 N / cm 2 , in a temperature range between 10 and 60 0 C and a frequency range between 50 and 10 000 Hz.
- the or each intermediate sheet is preferably transparent or translucent, in any case non-opaque.
- a transparent interlayer sheet is preferred because it allows to take full advantage of the appearance of the lacquer.
- the interlayer may be colorless or colored (eg, blue, red, green, gray, etc.). It can also be printed, for example opaque or translucent colored patterns, to reproduce a decoration, which will be superimposed on the decoration created by the lacquer layer.
- a preferred assembly consists in using two PVB polymer interlayer sheets, between which is inserted at least one polymer sheet (in particular polyethylene terephthalate, or PET) on which a decoration is reproduced by printing.
- polymer sheet in particular polyethylene terephthalate, or PET
- PET polyethylene terephthalate
- lacquer An important feature of lacquer is its ability to exhibit good adhesion with the polymeric interlayer. The inventors were able highlight that the adhesion should be high enough to avoid delamination, but not too high for the glazing to adequately absorb shocks.
- the lacquer layer has at least on its surface chemical functions capable of reacting chemically with the hydroxyl and / or carbonyl functional groups.
- the lacquer layer thus has on the surface functions of the same type, that is to say hydroxyl and / or carbonyl.
- a preferred lacquer is such that, by measurement in ATR (total attenuation attenuated) type infrared spectrometry, the ratio between the areas of the absorption bands bound to the hydroxyl groups and the areas of the absorption bands linked to the alkyl groups or alkanes is greater than or equal to 0.4, especially 0.5 or 0.6.
- ATR total attenuation attenuated
- the surface tension of the lacquer is also an important parameter.
- the lacquer layer preferably has a surface tension of between 30 and 70 N / mm 2 , especially between 32 and 50 N / mm 2 .
- the surface tension can be measured using test inks marketed by Plasmatreat GmbH.
- the contact angle of a drop of a plasticizer of said polymeric interlayer (especially tri-ethylene glycol di (2-ethyl hexanoate)) deposited on the lacquer is preferably less than or equal to 30 °.
- the roughness of the lacquer has also proved to be a factor influencing the adhesion, but of less importance compared to the presence of aforementioned chemical functions or surface tension.
- the lacquer therefore preferably has a roughness R z within the meaning of the NF EN ISO 4287: 1998 standard of between 10 and 90 micrometers, in particular between 45 and 70 micrometers.
- the measurement parameters are defined in standard NF EN ISO 4288: 1998.
- the lacquer of the glazing according to the invention comprises, as any lacquer, a binder based on synthetic resin, of polymeric nature.
- the binder is preferably based on acrylic resin, in particular crosslinked with melamine and / or an isocyanate.
- acrylic resin indeed has a good adhesion with the intermediate polymer sheet PVB, in particular thanks to the carbonyl and / or hydroxyl functions still available on the surface after firing the lacquer.
- the acrylic resin also has a very good resistance to hydrolysis.
- the binder may also be a polyurethane resin, obtained by crosslinking, by an isocyanate or a polyisocyanate, of hydroxylated resins, in particular polyester resins or polyethers, or preferably acrylic resins (or polyacrylates), which have a high resistance to ultraviolet radiation. .
- This particular combination makes it possible in particular to obtain low water permeabilities, good mechanical properties (for example in terms of scratch resistance), and high resistance to ultraviolet radiation.
- the binder of the lacquer of the glazing unit according to the invention may also contain or be based on alkyd resin (s), obtained by chemical reaction between at least one polyol, at least one polyacid and at least one fatty acid or one oil.
- alkyds are preferably short in oil, that is to say that the weight content of oil or fatty acid in the resin is preferably less than or equal to 40%.
- the polyols may be, for example, glycerol or pentaerythritol compounds.
- the polyacids may be based on phthalic anhydride.
- the oils can be drying (such as linseed oil, wood or china oil), semi-drying (such as soybean oil, tall oil, safflower or dehydrated castor oil), or non-drying (such as coconut oil or castor oil).
- the alkyd binders can also be modified with monomers such as styrene, vinyltoluene or acrylates or with phenolic or epoxy resins.
- Heat-crosslinking aminoplast alkyd resins are particularly advantageous binders of the coating lacquer according to the invention.
- the aminoplast crosslinking agent is preferably a urea-formaldehyde or melamine-formaldehyde resin, which gives good resistance to water, especially when they are provided at a rate of 20 to 30% by weight relative to the dry alkyd binder.
- the lacquer may also comprise a binder based on a thermosetting acrylic resin, for example obtained by crosslinking an acrylic resin carboxylated with an epoxy resin, formophenol or melamine-formaldehyde or an isocyanate, with a carboxamide-functional acrylic resin. an epoxy or alkyd binder, or an epoxy-functional acrylic resin with acids or polyamines.
- a thermosetting acrylic resin for example obtained by crosslinking an acrylic resin carboxylated with an epoxy resin, formophenol or melamine-formaldehyde or an isocyanate, with a carboxamide-functional acrylic resin.
- an epoxy or alkyd binder, or an epoxy-functional acrylic resin with acids or polyamines for example obtained by crosslinking an acrylic resin carboxylated with an epoxy resin, formophenol or melamine-formaldehyde or an isocyanate, with a carboxamide-functional acrylic resin.
- the lacquer preferably has a permeability to water at 25 ° C, expressed in cm 3 .cm.cm ⁇ 2 .s ⁇ 1 .Pa ⁇ 1 less than 10 ⁇ 6 , or even less than 5.10 "7 , and especially lower at 10 ⁇ 7.
- This impermeability to water allows the assembly to be more durable by avoiding the migration of PVB plasticisers to the surface of the glass which can cause detachment of lacquer.
- the PVB has the particularity to absorb the water: in a humid environment (for example in the bathroom), the water contained in the PVB can lead to a separation at the edges if the water permeability of the lacquer is too high.
- the lacquer To ensure perfect adhesion and mechanical strength, especially shear strength, over long periods of time, it is even preferable for the lacquer to have a water permeability at 25 ° C. of less than 10 ⁇ 8 , or even 10 ⁇ 9 , and even 10 ⁇ 10 cm 3 .cm.cm ⁇ 2 .s ⁇ 1 .Pa ⁇ 1 . Since the glazings according to the invention are in certain cases intended to be installed in places with a damp environment (for example in the bathroom), it is even preferable for the water permeability of the lacquer to be less than 10. ⁇ 11 , even 10 ⁇ 12 , and even 10 ⁇ 13 cm 3 . cm. cm “2 s " 1 . Pa "1 .
- Water permeability is defined as the product of the amount of water vapor diffusing through a material (in cm 3 ) by the material thickness (in cm) relative to the product of the exposed surface (in cm 2 ) by the exposure time (in seconds) and the pressure difference (in Pascal) between the two faces of the material. It can be measured for example by measuring the weight gain of a lacquer film after exposure in a climate chamber whose humidity level is controlled.
- This quantity in the case of a polymer, depends firstly on the chemical nature of the polymer, then on its morphology, which depends, for example, on the degree of crosslinking (via, for example, the content of crosslinking agent and / or the temperature crosslinking), the crystallisation rate, a possible orientation of the molecules. It also depends, if any, on the nature and quantity of mineral charges.
- the lacquer is therefore preferably in liquid form before deposition and suitable for oven drying. It has been observed that coatings comprising high temperature dried binders (over 50 0 C, or even 100 0 C) exhibited generally quite lower permeability as binders dried under air at room temperature, probably due crosslinking reactions, for example by polycondensation, more successful and giving rise to three-dimensional networks of higher density.
- An adhesion promoter is preferably present as a layer interposed between the lacquer layer and a glass sheet and / or between the lacquer layer and the polymeric interlayer, and / or dispersed in the lacquer.
- This layer is preferably based on silanes which make it possible to avoid the risks of delamination due to moisture and, where appropriate, to improve the adhesion between the lacquer layer and the polymer interlayer.
- Adhesion promoters with glass, such as silanes, can also be dispersed in the lacquer.
- the lacquer comprises pigments, inorganic and / or organic, preferably mineral, in order to confer the desired aesthetic properties. These pigments are preferably of the type resistant to ultraviolet radiation and moisture. Among the pigments used in the context of the present invention, there are, for example, oxides of titanium or zirconium optionally doped with ions of transition elements, or mixed oxides of zircon type (ZrSiO 4 ). The pigments are preferably free of heavy metals such as cadmium or lead.
- the layer of lacquer preferably opaque.
- the lacquer may also contain mineral fillers intended to optimize its physicochemical parameters, for example its viscosity.
- the total content of mineral species (pigments and fillers) of the lacquer is preferably, expressed as a percentage by weight relative to the solids content, of between 40 and 70%, and even between 50 and 60%.
- the lacquer of the glazing according to the invention can be deposited with any type of process known to those skilled in the art, such as the curtain, the pneumatic spraying, the screen printing or the "roll-coating".
- the screen printing process has the advantage of being able to coat only a part of the substrate.
- the roll-coating process consists in passing the substrate to be coated between two rollers, one of which (generally the upper roll) is coated with lacquer.
- the method employed is preferably the curtain in which a lacquer flow is created on a line substantially perpendicular to the direction of travel of the glass substrates, thus making it possible to coat the entire surface of said substrates.
- the lacquer flow rate and the rate of travel of the substrate are adjusted so as to obtain a deposit of the desired thickness, preferably 100 to 200 micrometers in the wet state.
- the substrate coated with the lacquer is then subjected to a heat treatment for curing the lacquer, more specifically to evacuate the solvent and perform the polymerization reactions and / or crosslinking of the resins used as binder.
- the temperature employed is preferably between 50 and 250 ° C., in particular between 100 and 200 ° C., to give the lacquer a degree of crosslinking able to reduce its permeability to water.
- the thickness of the lacquer layer after curing is preferably between 20 and 100 microns, especially between 40 and 70 microns to obtain the desired opacity.
- the or each sheet of glass used may be any type of flat glass, (possibly curved by the bending processes known to those skilled in the art, when it comes to coating curved surfaces). It may be monolithic glasses, that is to say composed of a single sheet of glass, which may be produced by the "float" process making it possible to obtain a perfectly flat and smooth sheet, or by processes drawing or rolling. In the latter case, and when the rollers have relief shapes, the glass sheet can be printed and have patterns (eg as taught in EP 493 202) on at least one of its faces, preferably the support face of the lacquer (or inner face). The glass sheet may be tempered or not. A non-tempered sheet has the advantage of being cut.
- the glass can be clear or have various shades such as blue, bronze, green, gray or pink.
- the light transmission of the glass can be chosen between 10 and 92% for a thickness of 4 mm.
- a way Particularly preferred embodiment, especially in the case where the lacquer is white or very light in color, for example ivory, consists in using as a glass substrate an extra-clear glass sheet, that is to say having an oxide content iron is less than 250 ppm, preferably less than or equal to 200 ppm, or even 150 ppm, and whose light transmission under D65 illuminant is greater than 89%, including 90% for a thickness of 4mm. It has been found that the optical properties of such a glass make it possible to obtain an excellent rendering of the white or ivory color of the lacquer whereas the green residual color of the ordinary clear glasses, the iron oxide content of which is The order of 1000 ppm is particularly highlighted.
- the thickness of the or each glass sheet is preferably between 2 and 19 mm, preferably between 2 and 6 mm, more particularly between 2 and 5 mm. Glass sheets having a thickness of about 3 mm or 4 mm are preferred, especially in assemblies where each sheet of glass has the same thickness.
- the or each glass sheet may be made matt on at least one of the faces (preferably the outer face) by various matting processes, for example hydrofluoric acid matting or sandblasting.
- This matting can be performed on the entire face or on particular areas, thus creating matted patterns slightly hollow.
- This latter embodiment can be performed by protecting the areas that will not be etched by an acid resistant coating which will then be removed.
- the matte appearance can also be obtained by depositing an organic or mineral enamel.
- a reflective layer preferably a silver layer, especially obtained by the silvering processes known to those skilled in the art can also be interposed between the or each glass sheet (optionally provided with adhesion promoters of the silane type) and the lacquer layer, the latter then performing the function of varnish protecting the silver layer of corrosion. It is thus possible to obtain a partition having on one side the appearance of a mirror and on the other side the appearance of a lacquered glass.
- a decor of one or more colors obtained by screen printing or inkjet techniques is advantageously interposed between the or each glass sheet (optionally provided with adhesion promoters of the type silanes) and lacquer, and / or external face.
- adhesion promoters of the type silanes for example, it is possible to combine the application of decorations on the internal face and on the outer face.
- the or each glass sheet may also be coated with functional layers such as anti-reflection layer stacks, layers with self-cleaning functionality (for example containing titanium oxide preferably crystallized in anatase and / or rutile form, which also have anti-fouling, anti-bacterial, anti-fog and anti-condensation properties), or hydrophobic layers. Layers imparting anti-slip properties, especially in the form of enamel, are particularly preferred in the case of floor coverings. Anti-abrasion or anti-scratch layers can also coat the or each glass sheet of the glazing according to the invention. The or each glass sheet may also be coated with at least one semi-reflective layer, the color then having a slightly metallic appearance. Conductive layers of electricity and therefore heating by effect
- Joule can be integrated on one side of the glazing, which allows for example to obtain floors and / or heated walls.
- the intermediate sheet may also comprise liquid crystals that can be oriented under the action of an electric field, allowing the transition from a translucent or opaque state to a transparent state, which may for example reveal a particular decoration located opposite back.
- Light-emitting diodes may also be disposed between the polymeric interlayer and at least one of the glass sheets of the glazing.
- the invention also relates to a process for obtaining a glazing unit according to the invention, comprising the steps of placing at least one polymeric interlayer sheet between at least one glass sheet previously coated with a lacquer layer and at least one minus another sheet of glass, and then subjecting the assembly to heat treatment under pressure to ensure the connection between said glass sheets.
- the heat treatment is typically carried out according to the methods known to those skilled in the art for laminating the glass, in an autoclave, at a pressure of between 9 and 14 bar and a temperature of between 100 and 150 ° C.
- the process is less expensive and more easily achievable than those described in the prior art, since it is not necessary to modify the parameters usually used for laminating glass, where two uncoated glass sheets are laminated with PVB.
- the lacquer layer is preferably subjected to the action of a plasma, in particular by a treatment of the corona discharge type, before heat treatment.
- a plasma in particular by a treatment of the corona discharge type
- the invention also relates to a partition, door (framed or not), furniture glazing, ceiling, railing, luminaire cover, wall covering, step, incorporating a glazing according to the invention.
- the partition can be fixed or in the form of sliding panels, for example mounted on rails.
- the door can be an indoor or outdoor door or a shower door.
- FIG. 1 schematically represents a glazing unit according to the invention, consisting of a first sheet of glass 1 coated with a layer of lacquer 3 and a second glass sheet 4, the assembly being bonded by an interlayer sheet 2 of PVB.
- FIG. 2 diagrammatically represents a glazing unit according to the invention, identical to that of FIG. 1, except that a reflecting layer 5 made of silver is deposited between the glass sheet 1 and the lacquer layer 3.
- FIG. 3 shows, for lacquers comprising acrylic or polyurethane binders, the relationship between, on the one hand, the ratio noted “R” between the areas of the absorption bands linked to the hydroxyl groups and the areas of the absorption bands related to the alkyl groups or alkanes and secondly the maximum shear stress (in MPa), which characterizes the adhesion between lacquer and PVB. Lacquers having on the surface a higher density of hydroxyl groups are the most satisfactory in terms of adhesion, and therefore those with the least risk of delamination.
- the glass sheets 1 and 4 are made of silico-soda-lime-type glass, clear, monolithic, flat and non-tempered, having a thickness of 4 mm. Such sheets are for example marketed under the brand SGG Planilux ® by the plaintiff.
- the inner face of the glass sheet 1 was previously coated with a lacquer layer 3 of 50 micron thickness, deposited according to the curtain process.
- the lacquer layer 3 comprises, after drying, the following ingredients: a binder in the form of a thermosetting acrylic resin crosslinked with melamine (resin A) or with an isocyanate (resin B), mineral substances (pigments and fillers) in a content of between between 40 and 70% by weight relative to the dry extract.
- a binder in the form of a thermosetting acrylic resin crosslinked with melamine (resin A) or with an isocyanate (resin B), mineral substances (pigments and fillers) in a content of between between 40 and 70% by weight relative to the dry extract.
- the lacquer layer 3 obtained using resin A has a surface tension of the order of 36 to 38 N / mm 2 and a roughness R z of about 55 micrometers.
- the resin B the values obtained are of the order of 42 to 48 N / mm 2 for the surface tension and about 50 micrometers for the roughness R z .
- the surface tension is measured using test inks marketed by Plasmatreat GmbH
- the ratio between the areas of the absorption bands linked to the hydroxyl groups and the areas of the absorption bands linked to the alkyl or alkane groups is greater than 0.6, indicating a high density. hydroxyl groups on the surface of the lacquer.
- the interlayer sheet 2 is transparent and colorless PVB 0.76 mm thick, sold under the reference Saflex RB41 by the company Solutia. Laminating is done according to the techniques commonly used in the field: the two glass sheets 1 and 4 are assembled, the interlayer sheet 2 PVB being disposed between said glass sheets. The air possibly contained between the constituent sheets of the glazing is then removed, for example by calendering and / or or depression. The bond is then carried out in an autoclave, at a pressure of approximately 12 bars, at a temperature of approximately 140 ° C. The glazing is suitable for use as a partition, because it meets the various existing standards.
- the glazing according to the invention is also resistant to high temperatures in the sense of the EN 12543-4 standard, since after treatment at 100 ° C. for 2 hours, no defects (of the bubble, opacification or delamination type) are observed on the PVB side. , and no point of detachment or change of colors are observed lacquer side.
Landscapes
- Laminated Bodies (AREA)
- Joining Of Glass To Other Materials (AREA)
- Surface Treatment Of Glass (AREA)
- Paints Or Removers (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08864434.9A EP2227399B1 (fr) | 2007-12-20 | 2008-12-22 | Vitrage feuilleté et un procédé pour son obtention |
| PL08864434T PL2227399T3 (pl) | 2007-12-20 | 2008-12-22 | Laminowane oszklenie i sposób jego uzyskania |
| JP2010538879A JP2011514849A (ja) | 2007-12-20 | 2008-12-22 | 化粧部材 |
| DK08864434.9T DK2227399T3 (da) | 2007-12-20 | 2008-12-22 | Lamineret glas og fremgangsmåde til opnåelse deraf |
| CN200880121635.XA CN101903185B (zh) | 2007-12-20 | 2008-12-22 | 装饰玻璃板 |
| US12/808,295 US9090120B2 (en) | 2007-12-20 | 2008-12-22 | Decorative glazing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0760130 | 2007-12-20 | ||
| FR0760130A FR2925483B1 (fr) | 2007-12-20 | 2007-12-20 | Vitrage decoratif. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2009081077A2 true WO2009081077A2 (fr) | 2009-07-02 |
| WO2009081077A3 WO2009081077A3 (fr) | 2009-09-11 |
Family
ID=39643960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2008/052397 Ceased WO2009081077A2 (fr) | 2007-12-20 | 2008-12-22 | Vitrage decoratif |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US9090120B2 (fr) |
| EP (1) | EP2227399B1 (fr) |
| JP (1) | JP2011514849A (fr) |
| KR (1) | KR101563377B1 (fr) |
| CN (1) | CN101903185B (fr) |
| DK (1) | DK2227399T3 (fr) |
| FR (1) | FR2925483B1 (fr) |
| PL (1) | PL2227399T3 (fr) |
| WO (1) | WO2009081077A2 (fr) |
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- 2008-12-22 JP JP2010538879A patent/JP2011514849A/ja not_active Ceased
- 2008-12-22 PL PL08864434T patent/PL2227399T3/pl unknown
- 2008-12-22 WO PCT/FR2008/052397 patent/WO2009081077A2/fr not_active Ceased
- 2008-12-22 US US12/808,295 patent/US9090120B2/en active Active
- 2008-12-22 DK DK08864434.9T patent/DK2227399T3/da active
- 2008-12-22 KR KR1020107013527A patent/KR101563377B1/ko active Active
- 2008-12-22 EP EP08864434.9A patent/EP2227399B1/fr active Active
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2999978A1 (fr) * | 2012-12-20 | 2014-06-27 | Saint Gobain | Verre decoratif feuillete |
| WO2015101745A1 (fr) | 2013-12-31 | 2015-07-09 | Saint-Gobain Glass France | Vitrage lumineux avec isolateur optique et sa fabrication |
| WO2015101744A1 (fr) | 2013-12-31 | 2015-07-09 | Saint-Gobain Glass France | Vitrage lumineux avec isolateur optique et sa fabrication |
| US10252494B2 (en) | 2013-12-31 | 2019-04-09 | Saint-Gobain Glass France | Luminous glazing unit with optical isolator and manufacture thereof |
| WO2015118279A1 (fr) | 2014-02-10 | 2015-08-13 | Saint-Gobain Glass France | Vitrage lumineux avec isolateur optique. |
| US9612386B2 (en) | 2014-02-10 | 2017-04-04 | Saint-Gobain Glass France | Luminous glazing unit with optical isolator |
| WO2016102799A1 (fr) | 2014-12-24 | 2016-06-30 | Saint-Gobain Glass France | Ensemble vitre lumineux |
| WO2016102800A1 (fr) | 2014-12-24 | 2016-06-30 | Saint-Gobain Glass France | Ensemble vitre lumineux |
| FR3110108A1 (fr) * | 2020-05-18 | 2021-11-19 | Saint-Gobain Glass France | Procédé de fabrication d’un vitrage feuilleté imprimé |
| WO2021234238A1 (fr) * | 2020-05-18 | 2021-11-25 | Saint-Gobain Glass France | Procédé de fabrication d'un vitrage feuilleté imprimé |
| WO2022223931A1 (fr) | 2021-04-21 | 2022-10-27 | Saint-Gobain Glass France | Verre decoratif |
| FR3122114A1 (fr) | 2021-04-21 | 2022-10-28 | Saint-Gobain Glass France | Verre décoratif |
| WO2024056602A1 (fr) | 2022-09-16 | 2024-03-21 | Aurys Industries | Procédé de revêtement d'un panneau de verre feuilleté et panneau de verre feuilleté revêtu |
| FR3139752A1 (fr) | 2022-09-16 | 2024-03-22 | Aurys Industries | procédé de revêtement d’un panneau de verre feuilleté et panneau de verre feuilleté revêtu |
| FR3146468A1 (fr) | 2023-03-10 | 2024-09-13 | Aurys Industries | Procédé et système de fabrication d’un panneau de verre feuilleté revêtu |
| FR3146469A1 (fr) | 2023-03-10 | 2024-09-13 | Aurys Industries | Procédé et système de fabrication d’un panneau de verre feuilleté revêtu |
| FR3146470A1 (fr) | 2023-03-10 | 2024-09-13 | Aurys Industries | Procédé et système de fabrication d’un panneau de verre feuilleté revêtu |
| WO2024188831A1 (fr) | 2023-03-10 | 2024-09-19 | Aurys Industries | Procédé et système de fabrication d'un panneau de verre feuilleté revêtu |
Also Published As
| Publication number | Publication date |
|---|---|
| DK2227399T3 (da) | 2021-06-28 |
| CN101903185B (zh) | 2014-08-20 |
| FR2925483B1 (fr) | 2010-01-08 |
| US9090120B2 (en) | 2015-07-28 |
| PL2227399T3 (pl) | 2021-10-11 |
| WO2009081077A3 (fr) | 2009-09-11 |
| CN101903185A (zh) | 2010-12-01 |
| JP2011514849A (ja) | 2011-05-12 |
| KR20100102614A (ko) | 2010-09-24 |
| US20110096555A1 (en) | 2011-04-28 |
| EP2227399B1 (fr) | 2021-04-28 |
| KR101563377B1 (ko) | 2015-10-26 |
| FR2925483A1 (fr) | 2009-06-26 |
| EP2227399A2 (fr) | 2010-09-15 |
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