[미국특허]
Waterborne coating composition for metal containers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08K-003/20
C08L-063/02
출원번호
US-0063091
(1993-05-18)
발명자
/ 주소
Parekh Girish G. (Libertyville IL) Pillai Perumal T. (Lindenhurst IL) Ponmankal Devasia J. (Chicago IL)
출원인 / 주소
The Dexter Corporation (Windsor Locks CT 02)
인용정보
피인용 횟수 :
20인용 특허 :
0
초록▼
A waterborne coating composition for metal containers, a method of coating a metal container, and a metal article useful as a food or beverage container are disclosed. The waterborne coating composition is a thermoplastic material and comprises: (a) a flexible, high molecular weight epoxy resin; (b)
A waterborne coating composition for metal containers, a method of coating a metal container, and a metal article useful as a food or beverage container are disclosed. The waterborne coating composition is a thermoplastic material and comprises: (a) a flexible, high molecular weight epoxy resin; (b) a medium molecular weight epoxy resin; (c) a resin having pendant carboxylic acid groups; (d) a fugitive base; and an aqueous carrier, wherein the waterborne coating composition includes about 0.5 to about 2.5 pounds volatile organic content per gallon of the composition, minus water.
대표청구항▼
A waterborne coating composition for application to a metal substrate comprising: (a) about 25% to about 90%, by weight of nonvolatile material, of a flexible high molecular weight epoxy resin having an epoxy equivalent weight of about 7,000 to about 20,000, said flexible high molecular weight epoxy
A waterborne coating composition for application to a metal substrate comprising: (a) about 25% to about 90%, by weight of nonvolatile material, of a flexible high molecular weight epoxy resin having an epoxy equivalent weight of about 7,000 to about 20,000, said flexible high molecular weight epoxy resin comprising: (i) a liquid epoxy resin having an epoxy equivalent weight of about 150 to about 300, (ii) a carboxylic acid-terminated linear polymer, and (iii) a dihydric phenol, wherein the carboxylic acid-terminated linear polymer is present in a sufficient amount to provide a flexible high molecular weight epoxy resin having a Tg of about 30°C. to about 100°C.; (b) about 5% to about 70%, by weight of nonvolatile material, of a medium molecular weight epoxy resin having an epoxy equivalent weight of about 1,500 to about 5,000; (c) about 5% to about 70%, by weight of nonvolatile material, of a resin having pendant carboxylic acid groups, wherein the carboxylic acid groups are present in an amount of about 0.7 to about 5.5 meq/gm of the resin; (d) a fugitive base in an amount sufficient to neutralize about 20% to about 100% of the stoichiometric amount of the pendant carboxylic acid groups; and (e) a sufficient amount of a carrier comprising water and volatile organic compounds, such that the waterborne coating composition includes about 10% to about 40%, by weight of the composition, of the total weight of (a), (b), (c) and (d), and such that the composition includes about 0.5 to about 2.5 pounds VOC per gallon of the composition minus water, and wherein the composition is essentially free of a phenol-formaldehyde resin, an aminoplast, a carbodiimide compound and mixtures thereof.
Perumal Pillai T. ; Pedersen Walter R. ; Hoch Roger W., .alpha.-glycol endcapped resins, their method of manufacture, and compositions containing the same.
O'Brien, Robert M.; Rardon, Daniel E.; Spynda, Rachael Ann; Bartley, George K.; Evans, Richard H., Coating compositions for aluminum beverage cans and methods of coating same.
O'Brien, Robert M; Rardon, Daniel E.; Spynda, Rachael Ann; Bartley, George K.; Evans, Richard H., Coating compositions for aluminum beverage cans and methods of coating same.
O'Brien, Robert M.; Rardon, Daniel E.; Spynda, Rachael Ann; Bartley, III, George K.; Evans, Richard H., Coating compositions for cans and methods of coating.
O'Brien, Robert M.; Rardon, Daniel E.; Spynda, Rachael Ann; Bartley, III, George K.; Evans, Richard H., Coating compositions for cans and methods of coating.
O'Brien, Robert M.; Rardon, Daniel E.; Spynda, Rachael Ann; Bartley, III, George K.; Evans, Richard H.; Killilea, Howard; Cavallin, Carl; Sicklesteel, Bruce G., Coating compositions for cans and methods of coating.
O'Brien, Robert M.; Rardon, Daniel E.; Spynda, Rachael Ann; Bartley, III, George K.; Evans, Richard H.; Killilea, T. Howard; Cavallin, Carl, Coating compositions for cans and methods of coating.
O'Brien, Robert M.; Rardon, Daniel E.; Spynda, Rachael Ann; Bartley, III, George K.; Evans, Richard H.; Killilea, T. Howard; Cavallin, Carl, Coating compositions for cans and methods of coating.
Parekh, Girish G.; Seibel, Lawrence P., Metal articles having a cured topcoat from an acrylate copolymer having a pendant glycidyl groups and an acid-terminated poylester.
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