# US 9,752,050 B2 · Coating compositions for food and beverage packages > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,752,050 B2 - Document ID: US9752050B2 - Status: Granted - Kind: B2 - Application number: 14/788,894 - Filed: 2015-07-01 - Published: 2017-01-05 - Granted: 2017-09-05 - Earliest claimed: 2015-07-01 - Assignees: PPG Industries Ohio, Inc. - Applicants: PPG Industries Ohio, Inc. - Inventors: Robert McVay; Alyssa McGhee - Web page: https://patentgrep.com/patent/US9752050B2 ## CPC - C09D 165/02: Polyphenylenes - B21D 51/26: cans or tins; Closing same in a permanent manner (making outlet arrangements B21D51/38; welding or soldering B23K) - B65D 1/12: Cans, casks, barrels, or drums - B65D 25/14: Linings or internal coatings (of containers made by folding or erecting blanks made of paper B65D5/56 {; linings for domestic water storage heaters F24H1/183}) - C09D 133/06: of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical - C09D 133/08: Homopolymers or copolymers of acrylic acid esters - B05D 3/02: by baking {(B05D3/04 takes precedence)} - C08K 3/013: Fillers, pigments or reinforcing additives - C08K 5/00: Use of organic ingredients - C08K 2003/2241: {Titanium dioxide} - C09D 4/06: {Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond} in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00 - C09D 133/26: Homopolymers or copolymers of acrylamide or methacrylamide - C09D 177/00: Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain (based on polyhydrazides C09D179/06; based on polyamide-imides C09D179/08); Coating compositions based on derivatives of such polymers - 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) - B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F) - 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 - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## Abstract Coating compositions for coating the interior of food or beverage packages are disclosed. The compositions are substantially free of bisphenol A and reaction products thereof. The compositions comprise: (a) a resinous binder comprising: (i) a polymer containing reactive functional groups, (ii) an aminoplast curing agent containing functional groups that are reactive with the functional groups of (i), and (iii) a monomeric phenol; (b) a colorant. ## Claims ### Claim 1 A coating composition being substantially free of bisphenol A and reaction products thereof comprising: (a) a resinous binder comprising: (i) a (meth)acrylic polymer containing N-alkoxymethyl(meth)acrylamide reactive functional groups, (ii) an aminoplast curing agent containing functional groups that are reactive with the functional groups of (i), (iii) 2 to 30 percent by weight based on weight of resin solids of a monomeric phenol, and (iv) an amine-terminated polyamide; (b) a colorant. ### Claim 2 (depends on 1) The coating composition of claim 1 in which (ii) is a condensate of benzoguanamine and formaldehyde. ### Claim 3 (depends on 1) The coating composition of claim 1 in which (iii) is a compound of the structure: where R1 is H, alkyl or alkoxy; R2 is H or alkyl, and R3 is alkyl. ### Claim 4 (depends on 3) The coating composition of claim 3 in which R1 is C1 to C4 alkyl or C1 to C4 alkoxy, R2 is hydrogen or C1 to C4 alkyl, and R3 is C1 to C4 alkyl. ### Claim 5 (depends on 3) The coating composition of claim 3 in which R1 is methyl or methoxy, R2 is hydrogen or C4 alkyl, and R3 is C4 alkyl. ### Claim 6 (depends on 3) The coating composition of claim 3 in which (ii) is a compound having the following structure: including mixtures thereof. ### Claim 7 (depends on 1) The coating composition of claim 1 in which (a) and (b) are dispersed in aqueous medium. ### Claim 8 (depends on 1) The coating composition of claim 1 in which (i) is present in the coating composition in amounts of 20 to 50 percent by weight based on weight of resin solids in the coating composition. ### Claim 9 (depends on 1) The coating composition of claim 1 in which (ii) is present in the coating composition in amounts of 20 to 50 percent by weight based on weight of resin solids in the coating composition. ### Claim 10 (depends on 1) The coating composition of claim 1 in which (iii) is present in the coating composition in amounts of 4 to 25 percent by weight based on weight of resin solids in the coating composition. ### Claim 11 (depends on 1) The coating composition of claim 1 which has a resin solids content of 15 to 20 percent by weight based on total weight of the composition. ### Claim 12 (depends on 1) The coating composition of claim 1 in which (b) is present in the coating composition in amounts of 10 to 20 percent by weight based on total weight of the composition. ### Claim 13 (depends on 1) A coated package or a portion thereof having a food or beverage-contacting surface comprising the coating composition of claim 1 applied to at least a portion of the food or beverage-contacting surface. ### Claim 14 (depends on 13) The coated package of claim 13 in which the package is an aluminum or steel container. ### Claim 15 (depends on 14) The coated container of claim 14 in which the container is a 2-piece or 3-piece can including a can end. ### Claim 16 (depends on 1) A method comprising: (a) providing a substrate having a food or beverage-contacting surface, (b) applying the coating composition of claim 1 to the food or beverage-contacting surface, and (c) forming the substrate into a package before or after application of the coating composition. ### Claim 17 (depends on 16) The method of claim 16 in which the substrate is a metal sheet or a coil metal strip, each of which are subsequently formed into a can or a can end. ### Claim 18 (depends on 16) The method of claim 16 in which the metal substrate is a 2-piece can.