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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||148/627 ; 148/26|
|발명자 / 주소||
|출원인 / 주소||
|인용정보||피인용 횟수 : 34 인용 특허 : 0|
An acidic aqueous coating solution for forming on an aluminum surface a coating which is corrosion resistant and to which overlying coatings adhere excellently is disclosed. The coating solution contains compounds of zirconium and fluorine. The use of boric acid in the solution is disclosed also. The coating solution is capable of forming on an aluminum surface a uniformly colorless and clear coating so that the coated surface has the appearance of the underlying metal surface, that is, the coating can be formed without changing the appearance of the met...
A method for coating aluminum can stock comprising contacting an aluminum can surface having a bright and shiny appearance with an acidic aqueous coating solution having a pH within the range of about 3 to about 5 and consisting essentially of zirconium and fluoride, the amount of zirconium being at least about 3 ppm and the amount of fluoride being at least 5 ppm and less than an amount which causes etching of said surface to the extent that the surface has a dull and frosty appearance, reacting said zirconium with said surface to chemically bond said z...