[특허]Methods and compositons for acid treatment of a metal surface

Methods and compositons for acid treatment of a metal surface 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C03C-015/00 C03C-025/68 C25F-003/00 C23F-001/20
출원번호	US-0564889 (2012-08-02)
등록번호	US-8518286 (2013-08-27)
발명자 / 주소	Basaly, Mores
출원인 / 주소	Houghton Technical Corp.
대리인 / 주소	Howson & Howson LLP
인용정보	피인용 횟수 : 0 인용 특허 : 35

초록 ▼

The invention relates to compositions and methods that are useful in etching a metal surface. In particular, the invention relates to novel acid compositions and methods of using such compositions in etching a metal surface, preferably an aluminum surface prior to anodizing to dissolve impurities, imperfections, scale, and oxide. The compositions are effective in maintaining their etching capacity and in removing smut produced by the etching of a surface as well as in general cleaning.

대표청구항 ▼

1. A method of etching aluminum, said method comprising contacting said aluminum with a composition consisting essentially of: (a) about 20 to about 80 grams per liter of ammonium bifluoride;(b) about 1 to about 50 grams per liter of diammonium phosphate; and(c) water. 2. The method according to claim 1, wherein said etching is performed at a composition temperature of 70° F. to 150° F. 3. The method according to claim 2, wherein said etching is performed at a temperature of about 100° F. to about 125° F. 4. The method according to claim 1, wherein said etching is performed in about 1 to about 3 minutes. 5. The method according to claim 1, wherein said etching is performed in about 0.5 to about 10 minutes. 6. The method according to claim 1, wherein said etching is performed at a pH of about 2 to about 5. 7. The method according to claim 1, further comprising rinsing the etched aluminum. 8. The method according to claim 1, wherein said aluminum is an aluminum alloy. 9. The method according to claim 1, wherein the etched aluminum is resistant to pitting. 10. The method according to claim 1, wherein the etch aluminum bath does not require cooling. 11. The method according to claim 1, wherein the etched aluminum has a uniform matte finish when analyzed using a reflectometer at a 60° angle. 12. The method according to claim 1, wherein extrusion lines on said etched aluminum are removed or minimized. 13. The method according to claim 1, which results in a significant reduction of waste products from the aluminum etching process. 14. The method according to claim 1, wherein said etching removes about 0.5 to about 1.5 gr/ft2 of aluminum. 15. The method according to claim 1, which results in a reduction of water consumption in the aluminum etching process. 16. The method according to claim 1, consisting essentially of about 5 to about 30 grams per liter of diammonium phosphate. 17. The method according to claim 1, consisting of about 10 to about 20 grams per liter of diammonium phosphate. 18. The method according to claim 1, consisting of about 60 to 70 grams per liter of ammonium bifluoride. 19. A method of etching aluminum, said method comprising contacting said aluminum with a composition consisting of: (a) about 20 to about 80 grams per liter of ammonium bifluoride;(b) about 1 to about 50 grams per liter of diammonium phosphate; and(c) water.

이 특허에 인용된 특허 (35)

McNeil Maynard W. (Washington NJ) Reimbold Edward J. (Dunwoodle GA) Waldron King C. (Lomita CA), Aluminum desmut composition and process.
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Marczak,Gregory S.; Minner,Rick A., Anodized aluminum etching process and related apparatus.
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Fine Daniel H. (41 Brook Ter. Leonia NJ 07605), Composition and method for the preventative treatment of dental disease and apparatus for dispensing said composition.
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Charles W. Eichelberger ; James E. Kohl ; Michael E. Rickley, Electroless metal connection structures and methods.
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Anderson, James D.; Seigle, Sandra K., Inhibitor-containing acid cleaning compositions and processes.
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Askin Albert L. (Lower Burrell PA) Schultz Paul B. (Export PA), Method for desmutting aluminum alloys having a highly reflective surface.
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Schultz Paul B. (Export PA) Askin Albert L. (Lower Burrell PA), Method for desmutting aluminum alloys having a highly-reflective surface.
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Ota, Katsuhiro; Saito, Akio, Method for polishing a semiconductor substrate member.
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Yamasoe Katsuyoshi (Chiba JPX) Ikeda Satoshi (Kanagawa JPX) Yasuhara Kiyotada (Kanagawa JPX), Method of controlling an aluminum surface cleaning composition.
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Chieng Paul C. (St. Louis MO), Method of production of high purity silica and ammonium fluoride.
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Zhang Liming ; Zhao Yuexing ; Hymes Diane J. ; Krusell Wilbur C., Methods and apparatus for cleaning semiconductor substrates after polishing of copper film.
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Basaly, Mores, Methods and compositions for acid treatment of a metal surface.
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Batchelor, Gary R.; Russo, Sr., Carmen A.; Bradley, Martin, Methods and compositions for producing decorative frosting effects on glass.
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Borah Ronald E. (Chesterton IN), Methods for removal of contaminants from surfaces.
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Goodman Jack E. (Germantown MD), Optical fiber coating apparatus.
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Goodman Jack E. (Germantown MD), Optical fiber holder.
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Forward Geoffrey Charles (Redhill EN) Duke Susan Ann (Croydon EN), Oral hygiene compositions.
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Okajima Taizo (Kitakyushu JPX) Ootani Kouichi (Nohgata JPX) Yamada Tsutomu (Machida JPX), Polishing composition.
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Schmadel ; Jr. Donald C. (Kensington MD), Process of fabricating a portion of an optical fiber capable of reflecting predetermined wavelength bands of light.
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Barber James C. (Florence AL), Processes and equipment for production of elemental phosphorus and thermal phosphoric acid.
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Ono Reiji,JPX ; Nakaya Takashi,JPX ; Kimura Yoshio,JPX ; Kamijo Tsunao,JPX ; Miyamoto Kenichi,JPX ; Matoba Takashi,JPX ; Ohashi Hidemi,JPX ; Ichimoto Takehiko,JPX, Pulverized coal carriability improver.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Methods and compositons for acid treatment of a metal surface 원문보기

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Methods and compositons for acid treatment of a metal surface 원문보기

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