Coating compositions for aluminum beverage cans and methods of coating same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-017/00
B05D-001/02
B05D-003/00
B65D-025/14
C08F-002/22
C08F-265/00
C08F-265/02
C08F-265/04
C08F-265/06
C08F-265/10
C08F-283/00
C08F-283/02
C08F-291/00
C09D-004/06
C09D-151/00
C09D-151/08
B32B-015/04
B32B-015/20
B32B-027/00
B32B-015/06
출원번호
US-0801133
(2013-03-13)
등록번호
US-8835012
(2014-09-16)
발명자
/ 주소
O'Brien, Robert M.
Rardon, Daniel E.
Spynda, Rachael Ann
Bartley, George K.
Evans, Richard H.
출원인 / 주소
Valspar Sourcing, Inc.
인용정보
피인용 횟수 :
0인용 특허 :
70
초록
A coating composition for a food or beverage can that includes an emulsion polymerized latex polymer formed by combining an ethylenically unsaturated monomer component with an aqueous dispersion of a water-dispersible polymer.
대표청구항▼
1. A method, comprising the steps of: receiving a coating composition that includes an emulsion polymerized latex polymer that comprises a reaction product of an ethylenically unsaturated monomer component polymerized in the presence of an aqueous dispersion of a salt of an acid- or anhydride-functi
1. A method, comprising the steps of: receiving a coating composition that includes an emulsion polymerized latex polymer that comprises a reaction product of an ethylenically unsaturated monomer component polymerized in the presence of an aqueous dispersion of a salt of an acid- or anhydride-functional polymer, wherein the ethylenically unsaturated monomer component includes an oxirane group-containing monomer, and wherein the coating composition is made without using PVC compounds, BPA, or aromatic glycidyl ether compounds; andspray applying the coating composition onto an interior surface of an aluminum beverage can including a body portion and a bottom end portion. 2. The method of claim 1, wherein the oxirane group-containing monomer comprises glycidyl methacrylate, glycidyl acrylate, or a mixture of glycidyl methacrylate and glycidyl acrylate. 3. The method of claim 1, wherein the ethylenically unsaturated monomer component includes ethyl acrylate. 4. The method of claim 1, wherein at least 50 wt-% of the ethylenically unsaturated monomer component is used in making the latex polymer, based on the total weight of ethylenically unsaturated monomer component and salt of the acid- or anhydride-functional polymer. 5. The method of claim 1, wherein the salt of an acid- or anhydride-functional polymer comprises a salt of an acid- or anhydride-functional polymer and a tertiary amine. 6. The method of claim 1, wherein the acid- or anhydride-functional polymer comprises an organic-solution polymerized acid- or anhydride-functional polymer. 7. The method of claim 5, wherein the acid- or anhydride-functional polymer comprises an organic-solution polymerized acid- or anhydride-functional polymer. 8. The method of claim 1, wherein the salt of an acid- or anhydride-functional polymer comprises a salt of an acid- or anhydride-functional alkyd resin, a salt of an acid- or anhydride-functional polyester resin, or a salt of an acid- or anhydride-functional polyurethane resin. 9. The method of claim 1, wherein the coating composition does not include a crosslinker. 10. The method of claim 1, wherein the coating composition does not include a phenoplast crosslinker, an aminoplast crosslinker, or a blocked or non-blocked isocyanate crosslinker. 11. The method of claim 1, wherein the coating composition is completely free of bound BPA and aromatic glycidyl ethers. 12. The method of claim 1, further comprising filling the coated beverage can with a beverage product. 13. The method of claim 1, wherein the salt of an acid- or anhydride-functional polymer comprises a salt of an acid- or anhydride-functional acrylic polymer. 14. The method of claim 13, wherein the acid- or anhydride-functional acrylic polymer comprises more than 15 wt-% acid- or anhydride-functional monomers, based on the weight of polymerizable unsaturated monomer used to generate the acid- or anhydride-functional acrylic polymer. 15. The method of claim 13, wherein the acid- or anhydride-functional acrylic polymer comprises more than 30 wt-% acid- or anhydride-functional monomers, based on the weight of polymerizable unsaturated monomer used to generate the acid- or anhydride-functional acrylic polymer. 16. The method of claim 13, wherein the polymerizable unsaturated monomers used to generate the acid- or anhydride-functional acrylic polymer includes methacrylic acid and does not include acrylic acid. 17. The method of claim 13, wherein the acid- or anhydride-functional monomers included in the polymerizable unsaturated monomers used to generate the acid- or anhydride-functional acrylic polymer consists of methacrylic acid. 18. The method of claim 13, further comprising curing the coating composition to form a cured coating. 19. The method of claim 18, wherein the cured coating exhibits a metal exposure of less than 2 mA on average when the can is filled with 1% NaCl in deionized water and tested pursuant to the Initial Metal Exposure test method disclosed herein. 20. The method of claim 19, wherein the cured coating exhibits a metal exposure of less than 2 mA on average when the can is filled with 1% NaCl in deionized water and tested pursuant to the Initial Metal Exposure test method disclosed herein. 21. The method of claim 18, wherein the cured coating exhibits a metal exposure of less than 1 mA on average when the can is filled with 1% NaCl in deionized water and tested pursuant to the Initial Metal Exposure test method disclosed herein. 22. The method of claim 18, wherein the cured coating exhibits a global extraction result of less than 50 ppm. 23. The method of claim 18, wherein the cured coating exhibits a global extraction result of less than 10 ppm. 24. The method of claim 18, wherein the cured coating exhibits a global extraction result of less than 1 ppm. 25. The method of claim 18, wherein the beverage can or a portion thereof includes a dome apex and the cured coating shows no craze after the outside of the dome apex is subjected to a 12 in-lbs reverse impact. 26. The method of claim 18, wherein the cured coating exhibits no adhesion failure when tested pursuant to ASTM D-3359-Test method B after retort in deionized water for 90 minutes at a heat of 121° C. and a corresponding pressure. 27. The method of claim 26, wherein the coating composition does not include a crosslinker. 28. The method of claim 1, wherein the oxirane-group containing monomer is present in an amount of 0.1 wt-% to 30 wt-%, based on the weight of the ethylenically unsaturated monomer component. 29. The method of claim 28, wherein the oxirane-group containing monomer is present in an amount of more than 5 wt-% to 30 wt-%, based on the weight of the ethylenically unsaturated monomer component. 30. The method of claim 29, wherein the oxirane group-containing monomer comprises glycidyl methacrylate, glycidyl acrylate, or a mixture of glycidyl methacrylate and glycidyl acrylate. 31. The method of claim 28, wherein the oxirane-group containing monomer is present in an amount of more than 5 wt-% to 9 wt-%, based on the weight of the ethylenically unsaturated monomer component. 32. The method of claim 1, wherein the ethylenically unsaturated monomer component includes at least 20 wt-% of a vinyl aromatic compound. 33. The method of claim 32, wherein the ethylenically unsaturated monomer component includes butyl acrylate. 34. The method of claim 33, wherein the ethylenically unsaturated monomer component includes from about 30 wt-% to about 55 wt-% of butyl acrylate. 35. The method of claim 32, wherein the ethylenically unsaturated monomer component includes ethyl acrylate. 36. The method of claim 1, wherein the ethylenically unsaturated monomer component includes at least 20 wt-% of styrene. 37. The method of claim 36, wherein the ethylenically unsaturated monomer component includes butyl acrylate. 38. The method of claim 37, wherein the ethylenically unsaturated monomer component includes from about 30 wt-% to about 55 wt-% of butyl acrylate. 39. The method of claim 36, wherein the ethylenically unsaturated monomer component includes ethyl acrylate. 40. The method of claim 1, wherein the ethylenically unsaturated monomer component includes butyl acrylate. 41. The method of claim 40, wherein the ethylenically unsaturated monomer component includes from about 30 wt-% to about 55 wt-% of butyl acrylate. 42. The method of claim 1, wherein the ethylenically unsaturated monomer component does not include acrylamide, methacrylamide, N-isobutoxymethyl acrylamide, or N-butoxymethyl acrylamide. 43. The method of claim 42, wherein the ethylenically unsaturated monomer component does not include any vinyl acrylamide monomers. 44. A method, comprising the steps of: receiving a coating composition that includes an emulsion polymerized latex polymer that comprises a reaction product of an ethylenically unsaturated monomer component polymerized in the presence of an aqueous dispersion of a salt of an acid- or anhydride-functional acrylic polymer and an amine, wherein the ethylenically unsaturated monomer component includes an oxirane group-containing monomer, and wherein the coating composition is made without using PVC compounds, BPA, or aromatic glycidyl ether compounds; andspray applying the coating composition onto an interior surface of an aluminum beverage can including a body portion and a bottom end portion. 45. The method of claim 44, wherein the oxirane group-containing monomer comprises glycidyl methacrylate, glycidyl acrylate, or a mixture of glycidyl methacrylate and glycidyl acrylate. 46. The method of claim 44, wherein the ethylenically unsaturated monomer component includes ethyl acrylate. 47. The method of claim 44, wherein at least 50 wt-% of the ethylenically unsaturated monomer component is used in making the latex polymer, based on the total weight of ethylenically unsaturated monomer component and the salt of the acid- or anhydride-functional acrylic polymer and an amine. 48. The method of claim 44, wherein the amine comprises a tertiary amine. 49. The method of claim 44, wherein the coating composition does not include a crosslinker. 50. The method of claim 44, wherein the coating composition does not include a phenoplast crosslinker, an aminoplast crosslinker, or a blocked or a blocked or non-blocked isocyanate crosslinker. 51. The method of claim 44, wherein the coating composition is completely free of bound BPA and aromatic glycidyl ethers. 52. The method of claim 44, further comprising curing the coating composition to form a cured coating. 53. The method of claim 52, wherein the cured coating exhibits a metal exposure of less than 1 mA on average when the can is filled with 1% NaCl in deionized water and tested pursuant to the Initial Metal Exposure test method disclosed herein. 54. The method of claim 52, wherein the cured coating exhibits a global extraction result of less than 50 ppm. 55. The method of claim 52, wherein the cured coating exhibits a global extraction result of less than 10 ppm. 56. The method of claim 52, wherein the cured coating exhibits a global extraction result of less than 1 ppm. 57. The method of claim 52, wherein the beverage can or a portion thereof includes a dome apex and the cured coating shows no craze after the outside of the dome apex is subjected to a 12 in-lbs reverse impact. 58. The method of claim 52, wherein the cured coating exhibits no adhesion failure when tested pursuant to ASTM D-3359-Test method B after retort in deionized water for 90 minutes at a heat of 121° C. and a corresponding pressure. 59. The method of claim 58, wherein the coating composition does not include a crosslinker. 60. The method of claim 52, further comprising filling the coated beverage can with a beverage product. 61. The method of claim 44, wherein the oxirane-group containing monomer is present in an amount of 0.1 wt-% to 30 wt-%, based on the weight of the ethylenically unsaturated monomer component. 62. The method of claim 61, wherein the oxirane-group containing monomer is present in an amount of more than 5 wt-% to 30 wt-%, based on the weight of the ethylenically unsaturated monomer component. 63. The method of claim 62, wherein the oxirane group-containing monomer comprises glycidyl methacrylate, glycidyl acrylate, or a mixture of glycidyl methacrylate and glycidyl acrylate. 64. The method of claim 61, wherein the oxirane-group containing monomer is present in an amount of more than 5 wt-% to 9 wt-%, based on the weight of the ethylenically unsaturated monomer component. 65. The method of claim 44, wherein the ethylenically unsaturated monomer component includes at least 20 wt-% of a vinyl aromatic compound. 66. The method of claim 65, wherein the ethylenically unsaturated monomer component includes butyl acrylate. 67. The method of claim 66, wherein the ethylenically unsaturated monomer component includes from about 30 wt-% to about 55 wt-% of butyl acrylate. 68. The method of claim 65, wherein the ethylenically unsaturated monomer component includes ethyl acrylate. 69. The method of claim 44, wherein the ethylenically unsaturated monomer component includes at least 20 wt-% of styrene. 70. The method of claim 69, wherein the ethylenically unsaturated monomer component includes butyl acrylate. 71. The method of claim 69, wherein the ethylenically unsaturated monomer component includes ethyl acrylate. 72. The method of claim 44, wherein the ethylenically unsaturated monomer component includes butyl acrylate. 73. The method of claim 72, wherein the ethylenically unsaturated monomer component includes from about 30 wt-% to about 55 wt-% of butyl acrylate. 74. The method of claim 44, wherein the ethylenically unsaturated monomer component does not include acrylamide, methacrylamide, N-isobutoxymethyl acrylamide, or N-butoxymethyl acrylamide. 75. The method of claim 74, wherein the ethylenically unsaturated monomer component does not include any vinyl acrylamide monomers. 76. The method of claim 44, wherein the acid- or anhydride-functional acrylic polymer comprises an organic-solution polymerized acid- or anhydride-functional acrylic polymer. 77. The method of claim 76, wherein the amine comprises a tertiary amine. 78. The method of claim 44, wherein the acid- or anhydride-functional acrylic polymer comprises more than 30 wt-% acid- or anhydride-functional monomers, based on the weight of polymerizable unsaturated monomer used to generate the acid- or anhydride-functional acrylic polymer. 79. The method of claim 78, wherein the polymerizable unsaturated monomers used to generate the acid- or anhydride-functional acrylic polymer includes methacrylic acid and does not include acrylic acid. 80. A coated article comprising: an aluminum beverage can including a body portion and a bottom end portion; anda cured coating on an interior surface of the aluminum beverage can, wherein the coating is formed from a coating composition that includes an emulsion polymerized latex polymer that comprises a reaction product of an ethylenically unsaturated monomer component polymerized in the presence of an aqueous dispersion of a salt of an acid- or anhydride-functional polymer, wherein the ethylenically unsaturated monomer component includes an oxirane group-containing monomer, and wherein the coating composition is made without using PVC compounds, BPA, or aromatic glycidyl ether compounds. 81. The coated article of claim 80, wherein the salt of the acid- or anhydride-functional polymer comprises a salt of an acid- or anhydride-functional acrylic polymer and an amine, and wherein the coating is formed from a spray applied coating composition. 82. The coated article of claim 81, wherein the beverage can contains a beverage product.
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Masselin, Andre; Lo, Tung-Fai; Helias, Pascal; Couaillet, Francis, Composition of diepoxy resin modified with monofunctional organic material and dicarboxylic acid and crosslinker.
Evans James M. (Panama City FL) Ting Vincent W. (Brunswick OH), Graft polymer compositions of terminated epoxy resin, processes for making and using same, and substrates coated therewi.
White, Daniela; O'Dwyer, James B.; Mayo, Michael A.; Poindexter, Laura E.; Schneider, John R.; White, Michael L.; Sadvary, Richard J.; Tyebjee, Shiryn; Carney, Joseph M.; Anderson, Lawrence G.; Simps, Liquid coating of film-forming resin and particles chemically modified to lower surface tension.
Chandalia Kiran B. (Cheshire CT) Morgan Michael J. (Torrington CT) O\Connor James M. (Branford CT) Goldstein Stephen L. (Cheshire CT), Low VOC, moisture curable, two-component coating compositions based on organic polyisocyanates.
Baldy Heidi M. ; Faler Dennis L. ; Rardon Daniel E. ; Terrago Gina M., Low temperature cure waterborne coating compositions having improved appearance and humidity resistance and methods for coating substrates.
Gebhard Matthew S. (New Britain PA) Smith Linda S. (Oreland PA) Day James C. (North Wales PA), Method for reducing microfoam in a spray-applied waterborne composition.
Evans James M. (Panama City FL) Ting Vincent W. (Brunswick OH), Modified epoxy resins, processes for making and using same and substrates coated therewith.
Swarup Shanti ; Sundararaman Padmanabhan ; Dudik John M. ; Rearick Brian K. ; Simeon Marie Edla, Phosphatized amine chain-extended epoxy polymeric compounds.
Rechenberg, Karen S.; Coca, Simion; Barkac, Karen A.; O'Dwyer, James B.; Bowser, Linda J., Powder coating compositions having improved mar and acid resistance.
Loney-Crawford Faith S. (Detroit MI), Process for coating a substrate with coatings including high Tg acrylic polymers and coated article obtained thereby.
McEwan Ian H. (Kleinburg CAX) Patel Manubhai B. (Scarborough CAX), Two-step copolymerization process by controlling the temperature to prepare copolymer latex containing hard and soft mon.
Georgalas Nick (Brooklyn NY) Pucknat John G. (New York NY) Villano Ralph R. (Highland Lakes NJ), Water dilutable acrylated epoxy-phenolic coating compositions.
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