# US 11,028,283 B2 · Substrate having a functional coating and a temporary protection layer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,028,283 B2 - Document ID: US11028283B2 - Status: Granted - Kind: B2 - Application number: 16/863,298 - Filed: 2020-04-30 - Published: 2020-08-13 - Granted: 2021-06-08 - Earliest claimed: 2013-08-05 - Assignees: Saint-Gobain Glass France - Applicants: Saint-Gobain Glass France - Inventors: Nicolas Nadaud; Stéphanie Morlens; Vincent Rachet - Web page: https://patentgrep.com/patent/US11028283B2 ## CPC - C09D 133/08: Homopolymers or copolymers of acrylic acid esters - B65G 49/069: {Means for avoiding damage to stacked plate glass, e.g. by interposing paper or powder spacers in the stack (maculation per se B65H39/00)} - C03C 17/36: at least one coating being a metal - C03C 17/3626: {one layer at least containing a nitride, oxynitride, boronitride or carbonitride} - C03C 17/3644: {the metal being silver} - C03C 17/366: {Low-emissivity or solar control coatings} - C03C 17/42: at least one coating of an organic material and at least one non-metal coating - C03C 21/00: Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface - C09D 5/006: {Anti-reflective coatings} - C09D 5/008: {Temporary coatings (C09D5/20 takes precedence)} - C09D 5/20: for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films - C23C 14/0641: {Nitrides (C23C14/0617 takes precedence)} - C23C 14/083: {of refractory metals or yttrium} - C23C 14/35: by application of a magnetic field, e.g. magnetron sputtering {(C23C14/3457 takes precedence)} - C23C 14/58: After-treatment - C23C 14/5873: {Removal of material} - C03C 2218/328: Partly or completely removing a coating - C03C 2218/355: Temporary coating - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D) - C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS - C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04) ## Abstract An article includes a substrate including two main faces defining two main surfaces separated by edges, the substrate bearing a functional coating deposited by magnetron sputtering deposited on at least one portion of one main surface, and a temporary protective layer deposited on at least one portion of the functional coating, wherein, the temporary protective layer is deposited directly in contact with the functional coating, the temporary protective layer has a thickness of at least 1 micrometer, the temporary protective layer is not soluble in water, and the temporary protective layer is obtained from a composition comprising (meth)acrylate compounds, the substrate bearing the functional coating has not undergone a heat treatment at a temperature above 400° C. ## Claims ### Claim 1 An article comprising a substrate comprising two main faces defining two main surfaces separated by edges, said substrate bearing: a functional coating deposited by magnetron sputtering deposited on at least one portion of one main surface, said functional coating including an upper layer having a thickness from 1 nm to 40 nm, and a temporary protective layer deposited on at least one portion of the functional coating, wherein, the temporary protective layer is deposited directly in contact with the upper layer of the functional coating, the temporary protective layer has a thickness of at least 1 micrometer, the temporary protective layer is not soluble in water, and the temporary protective layer is obtained from a composition comprising (meth)acrylate compounds, the substrate bearing the functional coating has not undergone a heat treatment at a temperature above 400° C. ### Claim 2 (depends on 1) The article comprising a substrate as claimed in claim 1, wherein the (meth)acrylate compounds that have reacted together represent at least 90% by weight of a weight of the temporary protective layer. ### Claim 3 (depends on 1) The article comprising a substrate as claimed in claim 1, wherein the functional coating comprises a thin-film multilayer successively comprising, starting from the substrate, an alternation of n functional metallic layers based on silver or on a metal alloy containing silver, and of (n+1) antireflection coatings, each antireflection coating comprising at least one dielectric layer, so that each functional metallic layer is positioned between two antireflection coatings. ### Claim 4 (depends on 1) The article comprising a substrate as claimed in claim 1, wherein the upper layer is selected from nitrides, oxides or oxynitrides of titanium, of zirconium and/or of hafnium. ### Claim 5 (depends on 4) The article comprising a substrate as claimed in claim 4, wherein the upper layer is selected from a layer: of titanium nitride; of zirconium nitride; of hafnium nitride; of titanium zirconium nitride; of titanium zirconium hafnium nitride, of titanium oxide; of zirconium oxide; of hafnium oxide; of titanium zirconium oxide; of titanium zirconium hafnium oxide. ### Claim 6 (depends on 1) The article comprising a substrate as claimed in claim 1, wherein the temporary protective layer is completely removable during a heat treatment by decomposition without damaging the optical, energy or thermal properties conferred on the substrate by the functional coating. ### Claim 7 (depends on 1) The article comprising a substrate as claimed in claim 1, wherein a thickness of the functional coating is greater than 100 nm and less than 300 nm. ### Claim 8 (depends on 7) The article comprising a substrate as claimed in claim 7, wherein the thickness of the functional coating is greater than 150 nm and less than 250 nm. ### Claim 9 (depends on 1) The article comprising a substrate as claimed in claim 1, wherein the thickness of the temporary protective layer is between 2 and 100 micrometers. ### Claim 10 (depends on 9) The article comprising a substrate as claimed in claim 9, wherein the thickness of the temporary protective layer is between 5 and 50 micrometers. ### Claim 11 (depends on 10) The article comprising a substrate as claimed in claim 10, wherein the thickness of the temporary protective layer is between 10 and 30 micrometers. ### Claim 12 (depends on 1) The article comprising a substrate as claimed in claim 1, wherein the temporary protective layer has a grammage between 5 and 50 g/m2. ### Claim 13 (depends on 1) The article comprising a substrate as claimed in claim 1, wherein the temporary protective layer has a grammage between 10 and 30 g/m2. ### Claim 14 (depends on 1) The article comprising a substrate as claimed in claim 1, wherein the substrate bearing the temporary protective layer has not undergone a heat treatment of tempering, annealing and/or bending. ### Claim 15 (depends on 1) The article comprising a substrate as claimed in claim 1, wherein the substrate is a glass substrate. ### Claim 16 (depends on 15) The article comprising a substrate as claimed in claim 15, wherein the glass substrate has a thickness between 1 mm and 19 mm. ### Claim 17 (depends on 16) The article comprising a substrate as claimed in claim 16, wherein the thickness of the glass substrate is between 3 mm and 6 mm. ### Claim 18 (depends on 1) The article as claimed in claim 1, wherein the thickness of the upper layer is from 1 nm to 20 nm. ### Claim 19 (depends on 18) The article as claimed in claim 18, wherein the thickness of the upper layer is from 1 nm to 5 nm. ### Claim 20 (depends on 1) The article as claimed in claim 1, wherein the upper layer is a silicon nitride layer, optionally doped with aluminum.