Substrate with flammable coating mask

Abstract

The present invention provides a substrate having a functional coating on a specific section of the substrate, but without the use of laser removal, and without the functional coating on other sections of the substrate. [Solution] A substrate having a flammable coating mask, comprising a substrate having a first section and a second section, a mask coating layer on the first section of the substrate, and a functional coating layer on at least a portion of the mask coating layer and on the second section of the substrate. A method for segmenting a substrate having layers on it, a method for preparing a segmented substrate having layers on it, a segmented substrate, and a transparent body are also disclosed.

Description

Technical Field

[0001] (Cross - Reference to Related Applications) This application claims priority to U.S. Patent Application No. 16 / 913,305, filed Jun. 26, 2020, and claims priority to U.S. Provisional Patent Application No. 62 / 868,324, filed Jun. 28, 2019, and U.S. Provisional Patent Application No. 63 / 018,596, filed May 1, 2020, all of which are hereby incorporated by reference in their entirety.

[0002] (Technical Field) The present invention relates to a substrate having a combustible coating mask, a method of segmenting a substrate having a layer thereon, a method of preparing a segmented substrate having a layer thereon, a segmented substrate, and a transparency.

Background Art

[0003] In certain applications, it may be desirable to have a substrate that has a functional coating on a specific section of the substrate and no functional coating on other sections of the substrate. As an example, some automotive manufacturers utilize infrared cameras or rain detectors, and their sensors are obstructed by the presence of a functional coating on a specific section of the substrate through which the sensor transmits infrared (or other) radiation.

[0004] One procedure for manufacturing such a substrate is to use laser deletion to remove the functional coating from the relevant section of the substrate. However, laser deletion techniques incompletely remove the functional coating in certain cases, and some customers have rejected substrates manufactured using laser deletion.

[0005] Therefore, it is desirable to fabricate a substrate that has a functional coating on a specific section of the substrate and no functional coating on other sections of the substrate without using laser deletion. [Overview of the project]

[0006] The present invention relates to a substrate having a flammable coating mask, which includes a substrate having a first surface and a second surface opposite to the first surface. The first surface has a first section and a second section adjacent to the first section. A mask coating layer is disposed on the first section of the first surface. The mask coating layer is not disposed on the second section of the first surface. A functional coating layer is disposed on at least a portion of the mask coating layer and on the second section of the substrate. When the coated substrate is heated, the flammable coating mask and a portion of the functional coating layer on the flammable coating mask are removed, leaving a region on the substrate without a functional coating layer.

[0007] The present invention also relates to a method for segmenting a substrate. A substrate having a flammable coating mask is provided. The substrate includes a first surface and a second surface opposite the first surface. The first surface has a first section and a second section adjacent to the first section. A mask coating layer is placed on the first section. The mask coating layer is not placed on the second section of the first surface. A functional coating layer is placed on at least a portion of the mask coating layer and on the second section of the substrate. The coated substrate is heated so that the mask coating layer is removed from the first section. A portion of the functional coating placed on the mask coating layer is also removed from the first section. A portion of the functional coating placed on the second section remains substantially incorporated onto the substrate.

[0008] The present invention also relates to a method for preparing a segmented substrate. A substrate is provided having a first surface and a second surface opposite to the first surface. The first surface has a first section and a second section adjacent to the first section. A material is applied to the first section of the first surface to form a mask coating layer. The mask coating layer is not located on the second section of the first surface. A functional coating layer is applied on at least a portion of the mask coating layer and on the second section of the first surface to form a functional coating layer.

[0009] The present invention also relates to a method for preparing automotive transparency, comprising the steps of: providing a first ply having a No. 1 surface and a No. 2 surface opposite to the No. 1 surface; providing a second ply having a No. 3 surface and a No. 4 surface opposite to the No. 3 surface, wherein the No. 1 surface, No. 2 surface, No. 3 surface or No. 4 surface has a first section and a second section adjacent to the first section; a mask coating layer is on the first section and not on the second section; a functional coating layer is on at least a portion of the mask coating layer and on the second section; heating the first ply and the second ply simultaneously or separately; and removing the mask coating layer and a portion of the functional coating disposed on the mask coating layer to form automotive transparency. [Brief explanation of the drawing]

[0010] [Figure 1A] Figure 1A shows a cross-sectional view of a substrate having a flammable coating mask according to several non-limiting embodiments. [Figure 1B] Figure 1B shows a cross-sectional view of a segmented substrate prepared using a flammable coating mask, according to several non-limiting embodiments.

[0011] [Figure 2A]Figure 2A shows a cross-sectional view of a substrate having a flammable coating mask according to several non-limiting embodiments. [Figure 2B] Figure 2B shows a cross-sectional view of a segmented substrate prepared using a flammable coating mask, according to several non-limiting embodiments. [Figure 3A] Figure 3A shows a cross-sectional view of a substrate having a flammable coating mask according to several non-limiting embodiments. [Figure 3B] Figure 3B shows a cross-sectional view of a segmented substrate prepared using a flammable coating mask, according to several non-limiting embodiments.

[0012] [Figure 4] Figure 4 shows a plan view of a segmented substrate according to several non-limiting embodiments.

[0013] [Figure 5A] Figure 5A shows cross-sectional views of a transparent body according to several non-limiting embodiments. [Figure 5B] Figure 5B shows cross-sectional views of a transparent body according to several non-limiting embodiments.

[0014] [Figure 6] Figure 6 shows a micrograph of the coated substrate, including the mask coating layer, after heating. [Modes for carrying out the invention]

[0015] For the purposes of the following description, the terms “end,” “upper,” “lower,” “right,” “left,” “vertical,” “horizontal,” “top,” “bottom,” “lateral,” “vertical,” and their derivatives shall be as relating to the present invention as shown in the drawings. However, it should be understood that the present invention may envision various alternative modifications and step sequences unless expressly specified otherwise. It should also be understood that the particular devices and processes shown in the accompanying drawings and described in the following specification are merely illustrative embodiments or aspects of the present invention. Accordingly, the specific dimensions and other physical characteristics relating to the embodiments or aspects disclosed herein should not be considered limiting.

[0016] For the purposes of the following detailed description, it should be understood that the present invention may envision various alternative modifications and step sequences, unless otherwise expressly specified. Therefore, unless otherwise indicated, the numerical parameters described in the following specification and appended claims are approximations that may vary depending on the desired characteristics obtained by the present invention. Each numerical parameter should be interpreted by applying ordinary rounding techniques, at least in light of the reported number of significant figures, not as an attempt to limit the application of the doctrine of equivalents to the scope of the claims.

[0017] It should be understood that any numerical range described herein is intended to include all subranges contained therein. For example, the range "1 to 10" is intended to include all subranges between (and including) the stated minimum value of 1 and the stated maximum value of 10, i.e., between a minimum value of 1 and a maximum value of 10.

[0018] With respect to the layers of the materials described herein, the term "over" means further away from the substrate on which the material is disposed. For example, a second layer disposed "over" a first layer means that the second layer is disposed further away from the substrate than the first layer. The second layer may be in direct contact with the first layer. Alternatively, one or more other layers may be disposed between the first layer and the second layer.

[0019] The terms "polymer" or "polymeric" include oligomers, homopolymers, copolymers, and terpolymers, e.g., polymers formed from two or more monomers or polymers.

[0020] As used herein, the transitional term "comprising" (and other equivalent terms, e.g., "containing" and "including") is "open-ended" and can include unspecified matters. Although described in terms of "comprising", the terms "consisting essentially of" and "consisting of" are also within the scope of the present disclosure.

[0021] It will be understood that the components of FIGS. 1A to 5 whose last two digits of the element numbers are the same correspond to the components of the other figures of the present application and include the same characteristics of the corresponding components, unless explicitly stated. For example, components 102, 202, 302, etc. all refer to the substrate described below because all of these element numbers have the same last two digits (02).

[0022] Referring to Figure 1A, several non-limiting embodiments of a substrate 100 having a flammable coating mask are shown. The substrate 100 having a flammable coating mask may include a substrate 102 having a first section 104 and a second section 106 on its surface. The substrate 102 may be made of any suitable material. The substrate 102 may be transparent or translucent to visible light. "Transparent" means having a visible light transmittance greater than 0% and up to 100%. "Translucent" means allowing electromagnetic energy (e.g., visible light) to pass through but diffusing this energy so that an object on the opposite side of the viewer is not clearly visible. Examples of such materials include, but are not limited to, plastic substrates (such as acrylic polymers like polyacrylate; polyalkyl methacrylates such as polymethyl methacrylate, polyethyl methacrylate, and polypropylene methacrylate; polyurethane; polycarbonate; polyalkyl terephthalates such as polyethylene terephthalate (PET), polypropylene terephthalate, and polybutylene terephthalate; polysiloxane-containing polymers; or copolymers of any monomers for preparing these, or any mixture thereof), ceramic substrates, glass substrates, or mixtures or combinations of any of the above. For example, substrate 102 may include conventional soda-lime silicate glass, borosilicate glass, or lead glass. The glass may be uncoated. The glass may be clear glass. "Clear glass" means non-tinted glass or uncolored glass. Alternatively, the glass may be tinted glass or otherwise colored glass. The glass may be any type, such as conventional float glass, and may be any composition having any optical properties, such as any value of visible light transmittance, ultraviolet light transmittance, infrared light transmittance, and / or total solar energy transmittance."Float glass" means glass formed by a conventional float process, in which molten glass is deposited on a molten metal bath and controlledly cooled to form float glass ribbons. Examples of float glass processes are disclosed in U.S. Patents 4,466,562 and 4,671,155.

[0023] Each substrate 102 may be, for example, clear float glass, or tinted glass or colored glass. Examples of glass suitable for substrate 102 are described in U.S. Patents 4,746,347; 4,792,536; 5,030,593; 5,030,594; 5,240,886; 5,385,872; and 5,393,593. Substrate 102 may have any desired dimensions, such as length, width, shape, or thickness. In one exemplary substrate used in a transparent body of an automobile, substrate 102 may have a thickness of 1 mm to 10 mm, for example, 1 mm to 8 mm, for example, 2 mm to 8 mm, for example, 3 mm to 7 mm, for example, 5 mm to 7 mm, for example, 6 mm. Non-limiting examples of glass that can be used in the implementation of this disclosure include clear glass commercially available from PPG Industries Inc. in Pittsburgh, Pennsylvania, such as Starfire®, Solargreen®, Solextra®, GL-20®, GL-35®, Solarbronze®, Solargray® glass, Pacifica® glass, SolarBlue® glass, and Optiblue® glass.

[0024] Continuing to refer to Figure 1A, the substrate 100 having a flammable coating mask may include a material applied to a first section 104 of the substrate 102 to form a mask coating layer 108, but not to a second section 106 of the substrate. The mask coating layer 108 may be selectively placed on a particular section of the substrate 102 (e.g., the first section 104), while avoiding placement on other sections of the substrate 102 (e.g., the second section 106). The mask coating layer 108 may be formed directly on the substrate 102 (in direct contact with it), or it may be formed indirectly on the substrate 102 (with at least one intervening coating layer between the substrate 102 and the mask coating layer 108). Preferably, the masking coating layer 108 is formed directly on the substrate 100. The mask coating layer 108 can be applied using any suitable application method, including but not limited to inkjet printing, silkscreen printing, stamping, etc. This method may further include preparing the material via an emulsion in which the material is dispersed in water or an aqueous medium. As used herein, “aqueous medium” is a liquid mixture containing more than 50% water. It is understood that more than 50% water is relative to the total liquid content so as not to take into account any solid matter present. The mask coating layer 108 may have a thickness in the range of 10 nm to 2000 μm, for example, 10 nm to 1000 μm, 10 nm to 500 μm, 0.5 μm to 100 μm, 0.5 μm to 10 μm, 10 μm to 30 μm, or 50 μm to 100 μm.

[0025] The mask coating layer 108 may contain materials including wax, organic oil (e.g., tung oil), polyolefin, (meth)acrylate (e.g., poly(meth)acrylate) (as understood herein, (meth)acrylate refers to both acrylate and methacrylate), polyester, alkene, polyethylene, polypropylene, emulsions thereof, or some combination thereof. The mask coating layer 108 may also contain polylactic acid (PLA), polyethylene carbonate (PEC), polypropylene carbonate (PPC), polycaprolactone, polyoxymethylene, polyethylene, polypropylene, or some combination thereof. The wax may contain stearic acid, paraffin, carnauba wax, microcrystalline wax, polyethylene wax, or some combination thereof. Examples of wax emulsions include those available from Michelman, Inc. (Cincinnati, Ohio) (e.g., MGRD 1350, ML160, ME62330, Aqua240 PH90602L, ME48040M2), or those available from BYK-Chemie GmbH (Wesel, Germany) (e.g., AQUACER 526, AQUACER 541, AQUACER 1031, AQUACER 8500). Wax emulsions may also be paraffin / polyethylene emulsions, anionic polyamide emulsions, anionic carnauba emulsions, amine-dispersed carnauba emulsions, ethylene acrylic acid emulsions, nonionic microcrystalline emulsions, or some combination thereof. In some non-limiting examples, the mask coating layer 108 may contain an alkane, ester, or carboxylic acid and may have at least 40% by weight (e.g., at least 50% by weight, at least 60% by weight, at least 70% by weight, at least 80% by weight, or at least 90% by weight) of carbon based on the total weight of the mask coating layer 108. The material can be mixed with a solvent. For example, the material may contain a mixture of PLA and methyl acetate.

[0026] Alternatively, in addition to any of the aforementioned materials for the mask coating layer 108, polyurethane materials, epoxide materials, polyurea materials, or combinations thereof may be included. As used herein, “polyurethane material” is a material made from components that form at least a portion of the mask coating layer 108 and contain urethane bonds and / or polyurethane. Examples of polyurethanes that may be used include aqueous polyurethanes, polyurethanes formed from two-component systems, emulsions thereof, and combinations thereof. Polyurethanes may contain additional functional groups, including ester bonds, ether bonds, and hydrophilic groups such as hydroxyl groups, carboxyl groups, carbonyl groups, amino groups, and thiols. Hydrophilic functional groups may be incorporated into the polyurethane to aid in emulsion formation. Polyurethanes can be obtained by reacting one or more hydroxyl-functional compounds with one or more isocyanate-functional compounds. Hydroxyl-functional compounds may include diols and / or polyols having three or more hydroxyl-functional groups. Isocyanate-functional compounds may include compounds having two or more isocyanate-functional groups, for example, compounds having three or more isocyanate-functional groups. Isocyanate-functionalized compounds may include unblocked isocyanates, blocked isocyanates, partially blocked isocyanates, or combinations thereof.

[0027] As shown, the mask coating layer 108 may contain an epoxide material. As used herein, “epoxide material” is a material containing an epoxide or a material obtained from a component containing an epoxide. Examples of epoxides include epoxy-functional polymer materials, also known as polyepoxides, which contain two or more epoxy functional groups. The epoxide may be an emulsion. The epoxide may contain one or more additional functional groups (e.g., carboxylic acid and / or hydroxyl functional groups) which can react with themselves as a self-crosslinking compound to form a reaction product. Alternatively, the epoxide can be reacted with a second compound, such as a carboxylic acid and / or hydroxyl functional compound, to form a reaction product. If there is an excess of epoxy functional groups in the reactants, the epoxide may contain epoxy functional groups. Alternatively, all epoxy functional groups may react during the reaction to form an epoxide layer, and as a result, the epoxy functional groups are not present in the mask coating layer 108.

[0028] As shown, the mask coating layer 108 may contain a polyurea material. As used herein, “polyurea material” is a material that contains urea bonds and / or is formed from components containing polyurea.

[0029] The mask coating layer 108 may contain both polyurethane material and epoxide material. When both polyurethane material and epoxide material are present, the polyurethane material and epoxide material may be formed together so that the mask coating layer 108 contains a single layer containing both polyurethane and epoxide. Alternatively, when both polyurethane material and epoxide material are present, the polyurethane material and epoxide material may be formed as separate layers. For example, the polyurethane material may be formed on the substrate and the epoxide material on top of the polyurethane material as separate layers. As a further example, the epoxide material may be formed on the substrate and the polyurethane material on top of the epoxide material as separate layers.

[0030] As used herein, the terms "one-component" or "1K" refer to a coating composition in which all coating components are combined and stored in a single container. As used herein, the terms "two-component" or "2K" refer to a coating composition in which the components are stored separately and react and crosslink together when mixed to form a crosslinked material.

[0031] The material applied to form the mask coating layer 108 may be thermoplastic or thermosetting. As used herein, “thermoplastic” is a material that softens when heated and has a defined melting point. The material applied to form the mask coating layer 108 may be a thermosetting resin of any of the aforementioned materials for the mask coating layer 108. As used herein, “thermosetting” is any crosslinking material that does not have a defined melting point and instead burns or decomposes when heated. The material applied to form the mask coating layer 108 may have a low degree of crosslinking such that the material has a defined melting point. The material applied to form the mask coating layer 108 may have a high degree of crosslinking such that the material does not have a defined melting point. A high degree of crosslinking can be achieved, for example, via a solvent-based formulation or by adding a crosslinking agent to an aqueous formulation.

[0032] The mask coating layer 108 may include a material that is included in the composition, applied to a substrate, and forms a layer when solidified, the layer exhibiting a water contact angle (WCA) (in contact with water) of at least 60° (e.g., at least 70° or at least 80°). The mask coating layer 108 may also include a hydrophobic material. A hydrophobic material is defined herein as a material that is included in the composition, applied to a substrate, and forms a layer when solidified, the layer exhibiting a WCA (in contact with water) of at least 90° (e.g., at least 100°, at least 110°, at least 120°, at least 130°, at least 140°, or at least 150°).

[0033] The mask coating layer 108 may contain a material having a melting point of at least 60°C, for example, at least 70°C or at least 80°C. The mask coating layer 108 may have a melting point of 60°C to 350°C. The mask coating layer 108 may contain a material that, when solidified, is impermeable to water and other standard processing fluids, such as coolants and cutting fluids. A mask coating layer 108 placed on a substrate may provide improved corrosion protection compared to the same substrate without the mask coating layer 108 placed on it.

[0034] In some non-limiting examples, the material applied to form the mask coating layer 108 may include an emulsion containing a hydrophobic material, water, and a surfactant, wherein the surfactant may be a nonionic surfactant or an ionic surfactant (e.g., a cationic or anionic surfactant). The material applied to form the mask coating layer 108 may include a material containing a hydrophobic material dissolved in a solvent. The material applied to form the mask coating layer may include a UV-curable or thermosetting material that, when applied to the surface of a substrate and exposed to a UV or heat source, causes crosslinking of the material applied to the substrate. The material applied to form the mask coating layer may include a two-component (2K) resin containing separate components that, when mixed together, react to crosslink the material when applied to the surface of a substrate.

[0035] In some non-limiting examples, the material is heated to a temperature at least the material's glass transition temperature ("Tg"), and the material is applied at a temperature that is at least the material's Tg. In other non-limiting examples, the material is applied at a temperature lower than the material's Tg, and then heated to a temperature suitable for the material to soften (e.g., a temperature higher than the material's Tg). Non-limiting examples include carnauba wax such as ML160, available from Michelman, Inc. (Cincinnati, Ohio), which may require heat treatment to a temperature above 63°C (e.g., at least 70°C, at least 80°C, or at least 90°C). The material may also require a curing process at a certain temperature for a certain period of time. For example, the material may be cured at room temperature (i.e., in the range of 20–27°C, e.g., 25°C) for a period of up to 72 hours, or up to 48 hours, or up to 36 hours, or up to 24 hours. The material may also be cured at high temperatures, such as in the range of 90-180°C, 100-170°C, 110-150°C, or 120-130°C (e.g., 121°C), for a maximum of 2 hours, for example, 1 hour, for example, 30 minutes, for example, 15 minutes.

[0036] The mask coating layer 108 may contain any additional components. Non-limiting examples of additional components include plasticizers, crosslinking agents, viscosity modifiers, corrosion inhibitors, infrared (IR) absorbers, adhesion modifiers, UV absorbers, pigments, surfactants, and hydrophobic agents. Examples of plasticizers suitable for use in the composition of the mask coating layer 108 include oils such as cottonseed oil, epoxidized soybean oil, and canola oil; waxes such as carnauba wax, paraffin, and microcrystalline wax; polyethylene glycol, and polypropylene glycol. Plasticizers are included in the composition of the mask coating layer 108, particularly when the mask coating layer 108 is a thermosetting resin system, to help remove the mask coating layer 108 via the wear wheel. Plasticizers may be included in the mask coating layer 108 in amounts ranging from 1 to 50% by weight, or 4 to 40% by weight, or 10 to 30% by weight, based on the total solid components of the mask coating layer 108.

[0037] Examples of suitable viscosity modifiers include RHEOBYK-425, RHEOBYK-T 1000VF, RHEOBYK-L 1400 VF, and RHEOBYK-H 3300 VF, all commercially available from BYK, as well as H1335 and HY124, all commercially available from Spectrum. The viscosity modifier may be included in the mask coating layer 108 in amounts ranging from 0.05 to 20% by weight, or 0.1 to 15% by weight, or 0.1 to 10% by weight, based on the total composition of the coating mask layer 108.

[0038] Examples of suitable hydrophobic agents include waxes, oils, and fatty acids. The hydrophobic agent may be included in the mask coating layer 108 in amounts ranging from 0.5 to 70% by weight, or 1 to 65% by weight, or 1 to 60% by weight, based on the total solid components of the mask coating layer 108.

[0039] Examples of crosslinking agents suitable for use in the composition of the mask coating layer 108 include compounds containing an aziridine group. A non-limiting example of an aziridine group-containing compound that can be used in the mask coating layer 108 is trimethylolpropanetris(2-methyl-1-aziridinepropionate). The crosslinking agent may be included in the mask coating layer 108 in amounts ranging from 0.05 to 30% by weight, or 0.1 to 20% by weight, or 0.1 to 10% by weight, based on the total solid components of the mask coating layer 108. The crosslinking agent is included in the composition of the mask coating layer 108 to crosslink the composition (for example, to make a thermosetting resin system).

[0040] The mask coating layer 108 may contain inorganic compounds such as talc, silica, metal catalysts, or inorganic pigments. Alternatively, one or more coating layers (e.g., one or all coating layers) may not contain any of the aforementioned additional components, such as not containing inorganic compounds such as talc, silica, metal catalysts, or inorganic pigments.

[0041] Additional additives, such as crosslinking agents, may be added during the preparation of the material that forms the mask coating layer 108. Alternatively, additional additives may be added immediately before the material is applied to form the mask coating layer 108.

[0042] Continuing to refer to Figure 1A, the substrate 100 having a flammable coating mask may include a functional coating material applied to at least a portion of the mask coating layer 108 and to the second section 106 of the substrate 102 to form a coating layer 110. The coating layer 110 may have a functional coating layer. The coating layer 110 may have a protective layer on top of the functional coating layer. The functional coating layer may have a thickness of less than 1 μm.

[0043] As used herein, the term “functional coating layer” refers to a coating that imparts a functional benefit to a surface beyond mere decoration. Non-limiting examples include coatings that impart optical, structural, electrical, hygienic, thermal, and / or physicochemical properties to a surface. Non-limiting examples of functional coatings include low-e (low emissivity) coatings, hydrophilic coatings, hydrophobic coatings, lipophilic coatings, low-friction coatings, antimicrobial coatings, anti-fingerprint coatings, anti-fogging coatings, self-cleaning coatings, easy-cleaning coatings, transparent conductive coatings, and at least one combination thereof. Functional coating layers may also include sun-controlled coatings. As used herein, the term “solar control coating” refers to a coating comprising one or more layers or films that affect the solar properties of a coated article, including, but not limited to, the amount of solar radiation such as visible light, infrared, or ultraviolet radiation reflected from, absorbed by, or passed through the coated article, such as the shielding coefficient or emissivity, and a solar control coating can block, absorb, or filter selected portions of the solar spectrum, including, but not limited to, the IR, UV, and / or visible spectrum.

[0044] The functional coating layer may be a single-layer coating or a multi-layer coating. The functional coating layer may be a multi-layer solar control coating as described in U.S. Patent Application Publication No. 2017 / 0341977.

[0045] The functional coating layer may include any temperable coating layer, such as those disclosed in UK Patent No. 2,302,102, U.S. Patents No. 4,504,109; U.S. Patents No. 4,952,423; U.S. Patents No. 5,028,759; U.S. Patents No. 5,059,295; U.S. Patents No. 5,653,903; U.S. Patents No. 7,749,621; U.S. Patents No. 8,865,325; and U.S. Patent Application Publication No. 2014 / 0272453. The functional coating layer may also include coatings available commercially from Vitro Architectural Glass (Cheswick, Pennsylvania) under the trade names Solarban® or Sungate®.

[0046] The functional coating layer may include a metallic layer containing a metallic material such as gold, copper, aluminum, palladium, or a combination thereof. The functional coating layer can be applied to a substrate using magnetron sputtering deposition ("MSVD") (e.g., MSVD-coated glass). Non-limiting examples of suitable functional coatings and coated substrates are disclosed in U.S. Patent Publication No. 2017 / 0341977, U.S. Patent Publication No. 2018 / 0118614; U.S. Patent Publication No. 2019 / 0204480; U.S. Patent No. 7,335,421; U.S. Patent No. 8,865,325; U.S. Patent No. 9,932,267; and U.S. Patent No. 10,479,724, all of which are incorporated herein by reference in their entirety.

[0047] A protective layer may be applied on top of the functional coating layer. The protective layer can help protect the underlying coating layer (e.g., the functional coating layer and its constituent films and layers) from mechanical and / or chemical attack. The protective layer may consist of Si3N4, SiAlN, SiAlON, titania, alumina, silica, zirconia, tin oxide, mixtures thereof, and / or alloys thereof, and can provide improved durability to the functional coating layer. For example, the protective layer may be SiAlN, Si3N4, TiAlO, or TiO2. The protective layer may have a thickness in the range of 10 Å to 800 Å, e.g., 100 Å to 800 Å, e.g., 100 Å to 400 Å, e.g., 350 Å to 400 Å, or in the range of 100 Å to 400 Å, e.g., 200 Å to 300 Å, e.g., 270 Å to 330 Å, e.g., 10 Å to 80 Å, e.g., 45 Å to 55 Å. The protective layer may be the top layer of the substrate.

[0048] Referring to Figure 2A, several non-limiting embodiments of a substrate 200 having a flammable coating mask are shown. The substrate 200 having a flammable coating mask may have the same properties as the substrate 100 having a flammable coating mask described in Figure 1A, except that the substrate 200 having a flammable coating mask may further include a temporary protective material applied on at least a portion of the coating layer 210 to form a temporary protective layer 212. The temporary protective layer 212 may be placed on the entire substrate 202 or selectively on specific sections of the substrate 202. The temporary protective layer 212 may be the outermost layer on the substrate 202.

[0049] The material used to form the temporary protective layer 212 may include any of the aforementioned materials used to form the mask coating layer 208. The temporary protective layer 212 may be formed from the same materials as the mask coating layer 208, or from different materials.

[0050] Referring to Figure 3A, several non-limiting embodiments of a substrate 300 having a flammable coating mask are shown. The substrate 300 having a flammable coating mask may have the same properties as the substrate 100 having a flammable coating mask described in Figure 1A, except as follows: As shown in Figure 1A, the coating layer 110 may have a non-uniform thickness, resulting in the coating layer 110 having a first thickness on the second section 106 and a second thickness on the first section 104. The first thickness may be greater than the second thickness. The first and second thicknesses may be such that the surface of the coating layer 110 is substantially the same distance from the substrate 102 across the entire coating layer 110. The substrate 300 with the flammable coating mask shown in Figure 3A differs from the substrate 100 with the flammable coating mask shown in Figure 1A in that the substrate 300 with the flammable coating mask shown in Figure 3A has a coating layer 310 with substantially uniform thickness (for example, within 5% of the average thickness across the entire coating layer 310). In this way, the surface of the coating layer 310 may be at different distances from the substrate 302 in certain sections of the coating layer 310. For example, as shown in Figure 3A, the surface of the coating layer 310 on the first section 304 may be further from the substrate 302 by the thickness of the mask coating layer 308 than the surface of the coating layer 310 on the second section 306.

[0051] Referring to Figures 1B, 2B, and 3B, segmented substrates 101, 201, and 308 prepared using a flammable coating mask are shown. The segmented substrates 101, 201, and 308 from Figures 1B, 2B, and 3B correspond to the substrates 100, 200, and 300 with flammable coating masks from Figures 1A, 2A, and 3A after undergoing a heat treatment process to form the segmented substrates 101, 201, and 308. The heat treatment process can remove the mask coating layer and / or temporary protective layer. A portion of the coating layer placed on top of the mask coating layer may be removed during the heat treatment process as a result of the removal of the mask coating layer beneath it during the heat treatment process. Once the mask coating layer is removed by the heat treatment process, a first section of the substrate may be exposed.

[0052] The material used to form the mask coating layer and / or temporary protective layer may be “burnable” so that it can be removed by a heat treatment process. As used in this disclosure, the term “burnable” means a material that burns, evaporates, or decomposes from the substrate, interacts with the substrate, or substantially damages the aesthetics or performance of the substrate (including the coating thereon) (as defined below). A burnable material may burn, evaporate, or decompose at least when the substrate temperature is between 500°C and 1000°C. It is assumed that the burnable material will burn, evaporate, or otherwise decompose before the substrate reaches a temperature of 1000°C from the heat treatment process (e.g., at temperatures of 900°C, 800°C, 700°C, or 650°C). The heat treatment process may be carried out in a furnace having temperatures up to 1200°C (e.g., up to 1100°C, up to 1000°C, up to 900°C, up to 800°C, up to 700°C, or up to 650°C). The furnace may operate at a temperature of 700°C so that the substrate reaches a temperature of 640°C, burning off any mask coating layers and / or temporary protective layers that are removed during the heat treatment process. In some non-limiting embodiments, the flammable material may be removed during standard heat treatment processes such as tempering, heat strengthening, or bending, as described above, or during heat treatments specifically performed to remove the flammable material without adversely affecting the substrate. In some non-limiting examples, the flammable material may be removed during a standard tempering procedure in which the tempering oven operates in the range of 500°C to 1000°C.

[0053] The mask coating layer and / or temporary protective layer may be configured to be removable by the heat treatment process without substantially damaging the first section of the substrate. As used herein, “substantially damaging” is defined as any adverse change to the function or appearance of the first section of the substrate that constitutes any undesirable change in substrate properties that makes the substrate unacceptable for the intended purpose of the substrate. For example, substantially damaging a surface may include substantial discoloration of the surface from the heat treatment process. In other applications where the heating process is part of the standard procedure, damage may be defined as an undesirable color change due to the presence of the mask coating layer and / or temporary protective layer. As used herein, substantial discoloration means a color change (DECMC) of more than 3 units, more than 2 units, or more than 1 unit compared to the color of a similar substrate treated without the mask coating layer and / or temporary protective layer. DECMC (CIELAB) can be measured using an integrating sphere with D65 illumination and a 10° observer including the specular reflectance component according to ASTM specification: D2244-05, unless otherwise specified. Other examples of substantial damage include, or are caused by, changes in surface roughness, changes in the oxidation state of the surface, or changes in surface energy. These are due to the presence of the mask coating layer and / or temporary protective layer during the heat treatment process, or undesirable reactions between the mask coating layer and / or temporary protective layer and the substrate during the heat treatment process. Substantial damage may include adverse changes to the functional coating layer (e.g., antimicrobial functional coatings that no longer disinfect the surface after the heat treatment process, hydrophobic functional coatings that lose their hydrophobicity after the heat treatment process, or changes in the color of the functional coating that are visible to the human eye compared to a substrate heated without the mask coating layer and / or temporary protective layer (e.g., DECMC > 3, 2, or 1)).

[0054] Referring to Figure 4, plan views of segmented substrates 401 according to several non-limiting embodiments are shown. The segmented substrate 401 may include a first section 404 of the substrate exposed together with a coating layer 410, the coating layer 410 being located on a second section of the substrate 401 but not on the first section 404 of the substrate. The coating layer 410 may be exposed as the outermost layer of the segmented substrate 401. The segmented substrate can be prepared by the steps of providing one of the aforementioned substrates having a flammable coating mask, and applying a heat treatment to the substrate having the flammable coating mask such that the mask coating layer is removed from the first section 404, and thereby the coating layer applied on top of that mask coating layer is also removed. The heat treatment can also remove one of the aforementioned temporary protective layers.

[0055] A method for segmenting a substrate having at least one layer thereon may include the steps of providing one of the aforementioned substrates having a flammable coating mask, and heating the substrate having the flammable coating mask so that the mask coating layer and a portion of the functional coating on the mask coating layer are removed from the first section. The heating step may also remove one of the aforementioned temporary protective layers. The heating step may include one of the aforementioned heat treatment processes.

[0056] A method for preparing a segmented substrate having at least one layer thereon may include the step of providing a substrate having a first surface and a second surface opposite the first surface. The first surface has a first section and a second section adjacent to the first section. A first material may be applied to the first section to form a mask coating layer. The mask coating layer is not applied to the second section. A functional material may be applied to at least a portion of the mask coating layer and to the second section of the first surface to form a functional coating layer of the coating layer. The substrate including the mask coating layer can be cleaned and / or shipped to the desired destination before the application of the functional coating. A second material may be applied to at least a portion of the coating layer to form a temporary protective layer. The first and second materials may be the same material or different materials.

[0057] Referring to Figures 5A and 5B, several non-limiting embodiments of a transparent body 514 (e.g., a transparent body for an automobile) are shown. The transparent body 514 may include a first ply 516 having a first main surface 518 (No. 1 surface) and a second main surface 520 (No. 2 surface) opposite to it. In the illustrated non-limiting embodiments, the first main surface 518 faces outward (e.g., the sun), i.e., it is the outer main surface, and the second main surface 520 faces inward. The transparent body 514 may also include a second ply 522 having an outer (near-outer) first main surface 524 (No. 3 surface) and an inner (second) main surface (No. 4 surface). This numbering of the ply surfaces is consistent with conventional practice in automotive technology. The first ply 516 and the second ply 522 can be joined together in any suitable manner, and a conventional intermediate layer 530 may be included between the first ply 516 and the second ply 522. As shown in Figures 5A and 5B, the first ply 516 or the second ply 522 may be a segmented substrate 501 prepared from a substrate having a flammable coating mask. The coating layer 510 may be formed on at least a portion of one of the prisms 516, 522 (e.g., its second section 506), for example, on at least a portion of the No. 3 surface 526 (Figure 5A), or on at least a portion of the No. 2 surface 520 (Figure 5B), but is not limited to these. The functional coating 510 may also be on the No. 1 surface or the No. 4 surface, if necessary. Following the heating and bending steps described herein, the flammable coating mask burns off from pies 516 and 522, so that the first section of pies 516 and 522 lacks the coating, while the second section retains the coating 510.

[0058] The transparent body 514 can be prepared by the steps of providing a substrate having a flammable coating mask (as a first ply 516 and / or a second ply 522) and applying a heat treatment to the substrate so that the mask coating layer is removed from the first section 504. The substrate having the flammable coating mask may include a temporary protective layer that can be removed by the heat treatment.

[0059] The transparent body 514 may be, but is not limited to, a transparent body for any desired field, such as a transparent body for vehicles on land, in the air, in space, on water, and underwater. Furthermore, while a typical “transparency” may have sufficient visible light transmittance so that the material can be seen through the transparent body, in the implementation of the present invention, the “transparent body” does not need to be transparent to visible light and may be semi-transparent or opaque.

[0060] In some non-limiting examples, the transparent body 514 may be the windshield of a vehicle. The vehicle may utilize autonomous vehicle technologies such as detectors and / or sensors (hereinafter collectively referred to as "sensors") (e.g., infrared cameras, LiDAR, rain detectors, etc.). The sensors may be located inside the vehicle, and the radiation or other sensing mechanisms emitted by the sensors may travel through the transparent body 514 to the outside of the vehicle to sense the surroundings. The functional coating layer of the coating layer 510 of the transparent body 514 may interfere with the radiation emitted by the sensors, so the sensors may be positioned so that the radiation emitted therefrom passes through the first section 504 of the segmented substrate 501. The first section 504 of the segmented substrate 501 may be uncoated or have a coating thereon that does not affect the sensing ability of the sensors. Thus, the first section 504 may be selectively positioned on the segmented substrate 501 based on the location of the sensors in the vehicle. This means that the segmented substrate 501 can be prepared from a substrate having a flammable coating mask on the first section 504, such that the segmented substrate 501 is compatible with the location of the sensors in the vehicle (i.e., does not adversely affect the sensors) after a heat treatment process to remove the flammable coating mask.

[0061] In some non-limiting embodiments, a method for preparing a transparent body for an automobile may include the steps of providing a first ply having an outer first main surface and an opposing inner second main surface, as described above, and providing a second ply having a flammable coating mask. Alternatively, the first ply may have a flammable coating mask as described above. The second ply has an inner third main surface and an opposing outer fourth main surface, the third main surface having a first section and a second section adjacent to the first section. The mask coating layer may be on the first section. The functional coating layer may be on at least a portion of the mask coating layer and on the second section.

[0062] This method may include heating the first and second plies to a temperature sufficient to bend them. Heating the first or second plies may include heating them to a temperature such that the mask coating layer is removed from the first section. The temperature may be up to 1000°C.

[0063] Bending the first ply and the second ply may include bending the first ply and the second ply together. Bending the first ply and the second ply may also include bending the first ply and the second ply separately. Bending of the ply may occur during heating. The bent first ply and the bent second ply may be joined to each other to form the automotive transparent body in any manner in which two ply are typically joined to form the automotive transparent body.

[0064] The intermediate layer may be positioned between the first ply and the second ply, or it may be positioned between the first and second bendable ply before bonding the first and second bendable ply, or after the first ply is heated and bent, or after the second ply is heated and bent, or after both the first and second ply are heated and bent. The intermediate layer may be any desired material and may include one or more layers or plies. The intermediate layer may be a polymer or plastic material, such as a multilayer thermoplastic material containing polyvinyl butyral, plasticized polyvinyl chloride, or polyethylene terephthalate. Suitable intermediate layer materials are disclosed, for example, in U.S. Patents 4,287,107 and 3,762,988. The intermediate layer can fix the first and second plies together, provide energy absorption, reduce noise, and improve the strength of the laminated structure. Alternatively, the first and second plies may be bonded together by other means. The interlayer may also be a sound-absorbing or sound-dampening material, for example, as described in U.S. Patent No. 5,796,055. The interlayer may have a functional coating layer provided on or incorporated therein, or may include a coloring material to reduce solar energy transmittance and / or to provide color to the transparent body. In one non-limiting embodiment, the interlayer may be polyvinyl butyral and may have a thickness in the range of 0.5 mm to 1.5 mm, for example, in the range of 0.75 mm to 0.8 mm (see Figure 5).

[0065] The present invention further includes the subject matter of the following provisions.

[0066] Clause 1: A substrate having a flammable coating mask, comprising: a substrate having a first surface and a second surface opposite to the first surface; the first surface having a first section and a second section adjacent to the first section; a mask coating layer on the first section, wherein the mask coating layer is not located on the second section; and a functional coating layer on at least a portion of the mask coating layer and on the second section.

[0067] Clause 2: The substrate of Clause 1, further comprising a temporary protective layer on at least a portion of the functional coating layer.

[0068] Clause 3: A substrate according to Clause 1 or 2, wherein the substrate includes a glass sheet.

[0069] Clause 4: A substrate according to any of Clauses 1-3, in which the mask coating layer is in direct contact with the substrate.

[0070] Clause 5: A substrate according to any of Clauses 1 to 4, wherein the mask coating layer comprises at least one of the following: wax, organic oil, (meth)acrylate, polyolefin, polyester, polycarbonate, polyether, polyurethane material, epoxide material, polyurea material, or a combination thereof.

[0071] Clause 6: The substrate of Clause 5, wherein the mask coating layer comprises at least one of polylactic acid (PLA), polyethylene carbonate (PEC), polypropylene carbonate (PPC), polycaprolactone, polyoxymethylene, polyethylene, polypropylene, aqueous polyurethane, polyurethane formed from a two-component system, epoxy-functional polymer material, or a combination thereof.

[0072] Clause 7: A substrate according to any of Clauses 2 to 6, wherein the temporary protective layer comprises at least one of the following: wax, organic oil, (meth)acrylate, polyolefin, polyester, polycarbonate, polyether, or a combination thereof.

[0073] Clause 8: A substrate according to any of Clauses 1 to 7, wherein the mask coating layer further comprises additional components including plasticizers, crosslinking agents, viscosity modifiers, corrosion inhibitors, infrared (IR) absorbers, adhesion modifiers, UV absorbers, pigments, surfactants, hydrophobic agents, or combinations thereof.

[0074] Clause 9: A substrate according to any of Clauses 1-8, wherein the mask coating layer is removable by burning at a maximum temperature of 1000°C.

[0075] Clause 10: A substrate according to any of Clauses 1 to 9, wherein the mask coating layer is configured to be removable by a heat treatment process without causing substantial damage to the first section.

[0076] Clause 11: A substrate according to any of Clauses 1 to 10, further comprising a protective layer disposed on at least a portion of the functional coating layer.

[0077] Clause 12: The substrate according to Clause 11, wherein the protective layer is selected from the group consisting of metal oxides or metal nitrides.

[0078] Article 13: A method for segmenting a substrate having a layer thereon, This is a process for providing a substrate having a flammable coating mask. A substrate having a first surface and a second surface opposite to the first surface; The first surface having a first section and a second section adjacent to the first section; A mask coating layer on the first section, wherein the mask coating layer is not located on the second section; A functional coating layer on at least a portion of the mask coating layer and on the second section; A step of providing a substrate having a flammable coating mask, including, A step of heating the substrate having the flammable coating mask, wherein the substrate having the flammable coating mask is heated such that the mask coating layer and a portion of the functional coating layer disposed on the mask coating layer are removed from the first section. Includes.

[0079] Clause 14: The method of Clause 13, wherein a substrate having a flammable coating mask further includes a temporary protective layer on at least a portion of the functional coating layer, and the heat treatment removes the temporary protective layer from the functional coating layer.

[0080] Clause 15: The method of Clause 13 or 14, wherein the substrate includes a glass sheet.

[0081] Clause 16: Any method of Clauses 13-15, wherein the mask coating layer is in direct contact with the substrate.

[0082] Clause 17: Any method of Clauses 13 to 16, wherein the mask coating layer comprises at least one of the following: wax, organic oil, (meth)acrylate, polyolefin, polyester, polycarbonate, polyether, polyurethane material, epoxide material, polyurea material, or a combination thereof.

[0083] Clause 18: The method of Clause 17, wherein the mask coating layer comprises at least one of polylactic acid (PLA), polyethylene carbonate (PEC), polypropylene carbonate (PPC), polycaprolactone, polyoxymethylene, polyethylene, polypropylene, aqueous polyurethane, polyurethane formed from a two-component system, epoxy-functional polymer material, or a combination thereof.

[0084] Clause 19: The temporary protective layer comprises at least one of the following: wax, organic oil, (meth)acrylate, polyolefin, polyester, polycarbonate, polyether, or a combination thereof, in any manner according to Clauses 14 to 18.

[0085] Clause 20: Any method of Clauses 13 to 19, wherein the mask coating layer further comprises additional components including plasticizers, crosslinking agents, viscosity modifiers, corrosion inhibitors, infrared (IR) absorbers, adhesion modifiers, UV absorbers, pigments, surfactants, hydrophobic agents, or combinations thereof.

[0086] Clause 21: Any method of Clauses 13 to 20, wherein the heating step includes heating the substrate having a flammable coating mask to a maximum temperature of 1000°C.

[0087] Clause 22: Any method of Clauses 13 to 21, further comprising a protective layer placed on at least a portion of the functional coating layer.

[0088] Clause 23: The method of Clause 22, wherein the protective layer is selected from the group consisting of metal oxides or metal nitrides.

[0089] Clause 24: Any method of Clauses 13 to 23, wherein the mask coating layer is configured to be removable by heat treatment without causing substantial damage to the first section.

[0090] Clause 25: A method for preparing a segmented substrate having a layer thereon, A step of providing a substrate having a first surface and a second surface opposite to the first surface, wherein the first surface has a first section and a second section adjacent to the first section. The process involves applying a material onto the first section to form a mask coating layer, wherein the mask coating layer is not applied onto the second section. The process of applying the material, A step of applying a functional coating layer on at least a portion of the mask coating layer and on the second section in order to form a functional coating layer, Includes.

[0091] Clause 26: The method of Clause 25, further comprising the step of applying a second material on at least a portion of a functional coating layer in order to form a temporary protective layer.

[0092] Clause 27: The method of Clause 25 or 26, wherein the substrate includes a glass sheet.

[0093] Clause 28: Any method of Clauses 25-27, wherein the mask coating layer is in direct contact with the substrate.

[0094] Clause 29: Any method of Clauses 25 to 28, wherein the mask coating layer comprises at least one of waxes, organic oils, (meth)acrylates, polyolefins, polyesters, polycarbonates, polyethers, polyurethane materials, epoxide materials, polyurea materials, or a combination thereof.

[0095] Clause 30: The method of Clause 29, wherein the mask coating layer comprises at least one of polylactic acid (PLA), polyethylene carbonate (PEC), polypropylene carbonate (PPC), polycaprolactone, polyoxymethylene, polyethylene, polypropylene, aqueous polyurethane, polyurethane formed from a two-component system, epoxy-functional polymer material, or a combination thereof.

[0096] Clause 31: Any method of Clauses 26 to 30 wherein the temporary protective layer comprises at least one of waxes, organic oils, (meth)acrylates, polyolefins, polyesters, polycarbonates, polyethers, or combinations thereof.

[0097] Clause 32: Any method of Clauses 25 to 31, wherein the mask coating layer further comprises additional components including plasticizers, crosslinking agents, viscosity modifiers, corrosion inhibitors, infrared (IR) absorbers, adhesion modifiers, UV absorbers, pigments, surfactants, hydrophobic agents, or combinations thereof.

[0098] Clause 33: Any method of Clauses 25 to 32, further comprising the step of applying heat treatment to a substrate having a flammable coating mask at a maximum temperature of 1000°C.

[0099] Clause 34: Any method of Clauses 25 to 33, wherein the mask coating layer is configured to be removable by heat treatment without causing substantial damage to the first section.

[0100] Clause 35: Any method of Clauses 25 to 34, further comprising a protective layer placed on at least a portion of the functional coating layer.

[0101] Clause 36: The method of Clause 35, wherein the protective layer is selected from the group consisting of silicon nitride, Si3N4, SiAlN, SiAlON, titania, alumina, silica, zirconia, tin oxide, mixtures thereof, and alloys thereof.

[0102] Clause 37: Any method of Clauses 25 to 36, wherein the second material is different from the aforementioned material.

[0103] Clause 38: Any method of Clauses 25 to 36, wherein the second material is the same as the aforementioned material.

[0104] Clause 39: Segmented substrates prepared by the following process: This is a process for providing a substrate having a flammable coating mask. A substrate having a first surface and a second surface opposite to the first surface; The first surface having a first section and a second section adjacent to the first section; A mask coating layer on the first section, wherein the mask coating layer is not located on the second section; A functional coating layer on at least a portion of the mask coating layer and on the second section; A step of providing a substrate having a flammable coating mask, including, A step of heating the substrate having the flammable coating mask, wherein the substrate having the flammable coating mask is heated such that the mask coating layer and a portion of the functional coating disposed on the mask coating layer are removed from the first section.

[0105] Clause 40: A segmented substrate according to Clause 41, wherein the substrate having a flammable coating mask further comprises a temporary protective layer on at least a portion of the functional coating layer, and the heat treatment removes the temporary protective layer.

[0106] Clause 41: A segmented substrate according to Clause 39 or 40, wherein the substrate includes a glass sheet.

[0107] Clause 42: A segmented substrate according to any of Clauses 39-41, in which the mask coating layer is in direct contact with the substrate.

[0108] Clause 43: A segmented substrate according to any of Clauses 39 to 42, wherein the mask coating layer comprises at least one of the following: wax, organic oil, (meth)acrylate, polyolefin, polyester, polycarbonate, polyether, polyurethane material, epoxide material, polyurea material, or a combination thereof.

[0109] Clause 44: A segmented substrate according to Clause 43, wherein the mask coating layer comprises at least one of polylactic acid (PLA) polyethylene carbonate (PEC), polypropylene carbonate (PPC), polycaprolactone, polyoxymethylene, polyethylene, polypropylene, aqueous polyurethane, polyurethane formed from a two-component system, epoxy-functional polymer material, or a combination thereof.

[0110] Clause 45: A segmented substrate according to any of Clauses 40 to 44, wherein the temporary protective layer comprises at least one of wax, organic oil, (meth)acrylate, polyolefin, polyester, polycarbonate, polyether, or a combination thereof.

[0111] Clause 46: A segmented substrate according to any of Clauses 39-45, wherein the mask coating layer further comprises additional components including plasticizers, crosslinking agents, viscosity modifiers, corrosion inhibitors, infrared (IR) absorbers, adhesion modifiers, UV absorbers, pigments, surfactants, hydrophobic agents, or combinations thereof.

[0112] Clause 47: A segmented substrate according to any of Clauses 39 to 46, wherein the heat treatment includes heating the substrate having a flammable coating mask to a maximum temperature of 1000°C.

[0113] Clause 48: A segmented substrate according to any of Clauses 39-47, wherein the mask coating layer is configured to be removable by heat treatment without causing substantial damage to the first section.

[0114] Clause 49: A segmented substrate according to any of Clauses 39 to 48, further comprising a protective layer disposed on at least a portion of the functional coating layer.

[0115] Clause 50: The method of Clause 49, wherein the protective layer is selected from the group consisting of silicon nitride, Si3N4, SiAlN, SiAlON, titania, alumina, silica, zirconia, tin oxide, mixtures thereof, and alloys thereof.

[0116] Article 51: A method for preparing a transparent body for an automobile, A step of providing a first ply having a No. 1 surface and a No. 2 surface opposite to the No. 1 surface, A step of providing a second ply having a No. 3 surface and a No. 4 surface opposite to the No. 3 surface, The process involves applying a flammable coating mask to a first section of surface No. 1, surface No. 2, surface No. 3, or surface No. 4, wherein the flammable coating mask is not applied to a second section of surface No. 1, surface No. 2, surface No. 3, or surface No. 4. A step of applying a functional coating layer on at least a portion of the mask coating layer and on a second section, A step of heating the first ply and the second ply simultaneously or separately, A step of joining a first ply and a second ply together in order to form a transparent body for an automobile, Methods that include...

[0117] Clause 52: The method of Clause 51, further comprising the steps of bending a first ply and bending a second ply, either simultaneously or separately.

[0118] Clause 53: The method of Clause 51 or 52, wherein the first ply and the second ply are heated separately.

[0119] Clause 54: The method of Clause 52 or Clause 53, wherein the first ply and the second ply are bent separately.

[0120] Clause 55: Any method of Clauses 51 to 54, further comprising the step of placing an intermediate layer between a first ply and a second ply.

[0121] Clause 56: Any method of Clauses 51 to 55, wherein the step of heating the second ply includes heating the second ply to a temperature such that the mask coating layer and a portion of the functional coating placed on the mask coating layer are removed from the first section.

[0122] Clause 57: The method of Clause 56, wherein the temperature is up to 1000°C.

[0123] Article 58: A method for preparing a transparent body for an automobile, A step of providing a ply having a first main surface and a second main surface opposite the first main surface, wherein the first main surface includes a first section and a second section adjacent to the first section, a mask coating layer is disposed on the first section, no mask coating layer is disposed on the second section, and a functional coating layer is disposed on a portion of the mask coating layer and on the second section, A step of heating the ply, thereby removing the mask coating layer and a portion of the functional coating layer placed on top of the mask coating layer from the first section, The process of bending the ply, Includes.

[0124] Clause 59: The method of Clause 58, wherein the temperature is up to 1000°C.

[0125] The following embodiments are provided to demonstrate the general principles of the present invention as disclosed herein. The present invention should not be considered to be limited to the specific examples presented. [Examples]

[0126] A coated substrate including a mask coating layer was prepared according to the following procedure. A transparent glass substrate measuring 12"×12" and 6mm thick was prepared. This glass substrate was cleaned in an industrial washing machine. The epoxy acrylate UV-curable resin was diluted with acetone until the component ratio was 50:50. The diluted epoxy acrylate UV-curable resin was added to a small area on the surface of the glass substrate using a dropper. After allowing the small area of ​​diluted epoxy acrylate UV-curable resin to dry, a pressure of 250-300 mJ / cm² was applied. 2A mask coating layer was fabricated by curing with ultraviolet light of a certain energy density. The thickness of the mask coating layer was in the range of 7 to 10 μm. Next, the glass substrate with the mask coating layer was washed again in an industrial washing machine. After washing, the glass substrate with the mask coating layer was placed in a pilot coater, and Solarban® 60VT double silver functional coating was deposited on the glass substrate and the mask coating layer to fabricate a coated substrate. Next, the coated substrate was placed in a box furnace set to a temperature of 700°C (1292°F). The coated substrate was heated in the box furnace until it reached a glass temperature of approximately 1,180°F (approximately 640°C). Next, the coated substrate was removed from the box furnace and allowed to cool to room temperature (i.e., between 20 and 30°C). Figure 6 is a micrograph of the coated substrate taken after it was removed from the box furnace and cooled to room temperature. As shown in Figure 6, the area including the mask coating layer beneath the functional coating (i.e., the bottom and left-side areas) was removed during heating in the box furnace. Outside the region containing the mask coating layer (i.e., the upper and right-side regions), the functional coating remained intact. A small amount of debris was observed at the boundary between the coated substrate region containing the mask coating layer and the region without the mask coating layer. The coated substrate was cleaned in an industrial washing machine to remove any remaining debris of the mask coating layer and / or functional coating that remained after heating. Thus, this embodiment effectively demonstrates the ability of the present invention to produce a coated substrate in which a functional coating is included on a first region of the substrate and a functional coating is not included on a second region of the substrate.

[0127] While the present invention has been described in detail for illustrative purposes based on what is currently considered to be the most practical and preferred embodiment, it should be understood that such details are for that purpose only, and the present invention is not limited to the disclosed embodiments, but rather intended to cover modifications and equivalent configurations that fall within the spirit and scope of the appended claims. For example, it should be understood that, to the extent possible, the present invention is intended to allow one or more features of any embodiment to be combined with one or more features of any other embodiment.

Claims

1. A substrate having a flammable coating mask, A substrate having a first surface and a second surface opposite to the first surface; The first surface comprising a first section and a second section adjacent to the first section; A mask coating layer on the first section, wherein the mask coating layer is not present on the second section; Functional coating layer on at least a portion of the mask coating layer and on the second section; A substrate having a flammable coating mask, including [a specific component].

2. The substrate according to claim 1, further comprising a temporary protective layer on at least a portion of the functional coating layer.

3. The substrate according to claim 1 or 2, wherein the mask coating layer is in direct contact with the substrate.

4. The substrate according to any one of claims 1 to 3, wherein the mask coating layer comprises at least one of wax, organic oil, (meth)acrylate, polyolefin, polyester, polycarbonate, polyether, polyurethane material, epoxide material, or a combination thereof.

5. The substrate according to claim 4, wherein the mask coating layer comprises at least one of polylactic acid (PLA), polyethylene carbonate (PEC), polypropylene carbonate (PPC), polycaprolactone, polyoxymethylene, polyethylene, polypropylene, aqueous polyurethane, polyurethane formed from a two-component system, epoxy-functional polymer material, or a combination thereof.

6. The substrate according to any one of claims 1 to 5, wherein the mask coating layer comprises at least one polyurea material.

7. The substrate according to claim 2, wherein the temporary protective layer comprises at least one of wax, organic oil, (meth)acrylate, polyolefin, polyester, polycarbonate, polyether, or a combination thereof.

8. The substrate according to any one of claims 1 to 7, wherein the mask coating layer can be removed by burning at a maximum temperature of 1000°C.

9. The substrate according to any one of claims 1 to 8, wherein the mask coating layer is configured to be removable by a heat treatment process without causing substantial damage to the first section.

10. A method for segmenting a substrate having a layer thereon, This is a process for providing a substrate having a flammable coating mask. A substrate having a first surface and a second surface opposite to the first surface; The first surface having a first section and a second section adjacent to the first section; A mask coating layer on the first section, wherein the mask coating layer is not located on the second section; Functional coating layer on at least a portion of the mask coating layer and on the second section; A step of providing a substrate having a flammable coating mask, including, A step of applying heat treatment to a substrate having the flammable coating mask, wherein the mask coating layer is removed from the first section, a first portion of the functional coating disposed on at least a part of the mask coating layer is removed, and a second portion of the functional coating layer disposed on the second section remains on the substrate. The above method, including.

11. The method according to claim 10, wherein the mask coating layer comprises at least one of wax, organic oil, (meth)acrylate, polyolefin, polyester, polycarbonate, polyether, polyurethane material, epoxide material, or a combination thereof.

12. The method according to claim 11, wherein the mask coating layer comprises at least one of polylactic acid (PLA), polyethylene carbonate (PEC), polypropylene carbonate (PPC), polycaprolactone, polyoxymethylene, polyethylene, polypropylene, aqueous polyurethane, polyurethane formed from a two-component system, epoxy-functional polymer material, or a combination thereof.

13. The method according to any one of claims 10 to 12, wherein the mask coating layer comprises at least one polyurea material.

14. The method according to any one of claims 10 to 13, wherein the heat treatment includes heating the substrate having the flammable coating mask to a maximum temperature of 1000°C.

15. A method for preparing a segmented substrate having a layer thereon, The process involves providing a substrate having a first surface and a second surface opposite to the first surface. A step of providing a substrate in which the first surface has a first section and a second section adjacent to the first section, A step of applying a material to the first section of the substrate in order to form a mask coating layer, wherein the mask coating layer is not applied to the second section, and a step of applying a material, A step of applying a functional coating layer to form a functional coating layer, wherein a first portion of the functional coating placed on at least a portion of the mask coating layer is removed, and a second portion of the functional coating layer placed on the second section remains on the substrate. including, The above method.

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