# US 10,308,547 B2 · Hollow glass packaging object or container having an external anti-mist coating > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,308,547 B2 - Document ID: US10308547B2 - Status: Granted - Kind: B2 - Application number: 15/323,150 - Filed: 2015-07-02 - Published: 2017-08-17 - Granted: 2019-06-04 - Earliest claimed: 2014-07-03 - Assignees: Verallia France - Applicants: Verallia France - Inventors: Alix Arnaud; Fabio Foti; Maxime Chestier - Web page: https://patentgrep.com/patent/US10308547B2 ## CPC - C03C 17/32: with synthetic or natural resins (C03C17/30 takes precedence) - B65D 25/34: Coverings or external coatings (of containers made by folding or erecting blanks made of paper B65D5/62; covering or external coating for bottles or jars not otherwise provided for B65D23/08; wrappers B65D65/00) - C03C 17/005: {Coating the outside} - C03C 17/322: {Polyurethanes or polyisocyanates} - C03C 17/34: with at least two coatings having different compositions (C03C17/44 takes precedence) - C03C 17/3405: {with at least two coatings of organic materials (C03C17/36, C03C17/42 take precedence)} - C09D 5/00: Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced {(electrically insulating plastics, resins or waxes H01B3/30)}; Filling pastes - C09D 129/04: Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids - C09D 175/08: from polyethers - C03C 2217/75: Hydrophilic and oleophilic coatings - C03C 2218/11: from solutions or suspensions - 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 - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES - 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) ## Abstract The present invention relates to a hollow glass, such as a bottle, glass, flask or pot, consisting of a glass substrate having, on at least one portion of its outer wall, a hydrophilic organic coating, for instance based on polyvinyl alcohol crosslinked with at least one acid selected from citric acid, polyacrylic acid and poly(acrylic acid-co-maleic acid). In order to manufacture this hollow glass, a solution containing the ingredients for forming the coating and at least one solvent is applied to the glass substrate by spraying, dip-coating or, when the hydrophilic organic coating is a partial coating, by spraying onto the outer wall of the glass substrate on which a mask has been applied, or by screenprinting; the glass substrate coated with said solution is dried; and the substrate is cured thermally or by UV radiation or by electron beam. It is possible to use this hollow glass for revealing a pattern thereon when said hollow glass is removed from a cold storage zone. ## Claims ### Claim 1 A hollow glass packaging container or article, comprising: a glass substrate and, on at least one portion of an outer wall of the glass substrate, an anti-water condensation hydrophilic organic coating, wherein the hydrophilic organic coating has been applied to the outer wall of the glass substrate, thereby forming a negative or positive pattern. ### Claim 2 (depends on 1) The packaging container or article as claimed in claim 1, wherein the hydrophilic organic coating further comprises at least one antifoaming agent. ### Claim 3 (depends on 1) The packaging container or article as claimed in claim 1, wherein the hydrophilic organic coating further comprises at least one wetting agent. ### Claim 4 (depends on 1) The packaging container or article as claimed in claim 1, wherein the hydrophilic organic coating further comprises at least one thickening/shear-thinning agent. ### Claim 5 (depends on 1) The packaging container or article as claimed in claim 1, wherein the hydrophilic organic coating based on PVA+A further comprises at least one esterification catalyst agent. ### Claim 6 (depends on 1) The packaging container or article as claimed in claim 1, wherein the glass substrate is selected from the group consisting of glass, quartz glass, borosilicate glass, soda-lime glass and organic glasses. ### Claim 7 (depends on 1) The packaging container or article as claimed in claim 1, wherein the hydrophilic organic coating is bonded to the glass substrate by an adhesion promoter layer. ### Claim 8 (depends on 1) The packaging container or article as claimed in claim 1, wherein the hydrophilic organic coating has a layer thickness of from 0.1 μm to 250 μm and wherein an optional adhesion promoter layer, if present, has a thickness of from 2 to 100 μm. ### Claim 9 (depends on 1) The packaging container or article as claimed in claim 1, wherein the hydrophilic organic coating is based on polyvinyl alcohol (PVA) crosslinked with at least one acid (A) selected from the group consisting of citric acid (CA), polyacrylic acid and poly(acrylic acid-co-maleic acid). ### Claim 10 (depends on 9) The packaging container or article as claimed in claim 9, wherein a PVA/A weight ratio is from 30/70 to 60/40. ### Claim 11 (depends on 1) The packaging container or article as claimed in claim 1, wherein the hydrophilic organic coating is based on at least one polyurethane (PU) and on at least one hygroscopic polymer. ### Claim 12 (depends on 11) The packaging container or article as claimed in claim 11, wherein the hygroscopic polymer is a polyvinylpyrrolidone. ### Claim 13 (depends on 11) The packaging container or article as claimed in claim 11, wherein a PU/hygroscopic polymer(s) weight ratio is from 1/1000 to 1/1. ### Claim 14 (depends on 11) The packaging container or article as claimed in claim 11, wherein the hydrophilic organic coating further comprises at least one flow agent. ### Claim 15 (depends on 1) A process for manufacturing the packaging container or article of claim 1, the process comprising: (a) applying a solution comprising ingredients suitable for forming the hydrophilic organic coating and at least one solvent to the glass substrate by spraying, dip-coating or, when the hydrophilic organic coating is a partial coating, by spraying onto the outer wall of the glass substrate on which a mask has been applied, or by screenprinting; (b) drying the glass substrate coated with said solution; and (c) curing said substrate thermally or by UV radiation or by electron beam, wherein the process optionally further comprises applying an adhesion promoter layer to the glass substrate before the applying (a). ### Claim 16 (depends on 15) The process as claimed in claim 15, wherein the applying (a) comprises preparing a mixture of PVA, of A, of optional antifoaming, wetting, thickening/shear-thinning and/or catalyst agents, and of water as solvent, said mixture has a final solids content of from 10% to 50% by weight; the drying (b), is at 30-70° C.; and the curing (c), comprises raising a temperature of the glass substrate to 90-150° C. ### Claim 17 (depends on 15) The process as claimed in claim 15, wherein the hydrophilic organic coating is based on at least one polyurethane (PU) and on at least one hygroscopic polymer, the applying (a) comprises preparing a solution that comprises isocyanate and polyol compound(s) suitable for forming the at least one polyurethane by polyaddition, optionally at least one catalyst for forming the at least one polyurethane, the at least one hygroscopic polymer, optionally flow agent(s), and at least one solvent; the drying (b) comprises drying the glass substrate and thereby eliminating the solvent; and the curing (c) comprises bringing a temperature to 100-150° C. ### Claim 18 (depends on 17) The process as claimed in claim 17, wherein the isocyanate compound comprises at least 1,6-hexamethylene diisocyanate, an oligomer of 1,6-hexamethylene diisocyanate or a homopolymer of 1,6-hexamethylene diisocyanate; the polyol compound comprises at least polyethylene glycol, polypropylene ether glycol and/or 1,4-butanediol; and the solution comprises a catalyst. ### Claim 19 (depends on 1) A method of revealing a pattern, the method comprising: removing the packaging container or article of claim 1 from a cold storage zone, thereby revealing the pattern.