[미국특허]
Coating compositions exhibiting corrosion resistance properties, related coated substrates, and methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B32B-015/08
B32B-015/092
B32B-015/20
B32B-027/20
B05D-005/00
C08K-003/22
C09K-015/02
C09K-015/32
출원번호
US-0785870
(2010-05-24)
등록번호
US-8283042
(2012-10-09)
발명자
/ 주소
Millero, Edward R.
Schneider, John R.
Hung, Cheng-Hung
Vanier, Noel R.
출원인 / 주소
PPG Industries Ohio, Inc.
대리인 / 주소
Palladino, Donald R.
인용정보
피인용 횟수 :
1인용 특허 :
60
초록▼
Coating compositions are disclosed that include corrosion resisting particles such that the coating composition can exhibit corrosion resistance properties. Also disclosed are substrates at least partially coated with a coating deposited from such a composition and multi-component composite coatings
Coating compositions are disclosed that include corrosion resisting particles such that the coating composition can exhibit corrosion resistance properties. Also disclosed are substrates at least partially coated with a coating deposited from such a composition and multi-component composite coatings, wherein at least one coating later is deposited from such a coating composition. Methods and apparatus for making ultrafine solid particles are also disclosed.
대표청구항▼
1. A method for enhancing the corrosion resistance of a substrate comprising an aluminum alloy, the method comprising coating at least a portion of the substrate with a composition comprising: (a) a film-forming resin;(b) particles comprising magnesium oxide, wherein the particles have a surface are
1. A method for enhancing the corrosion resistance of a substrate comprising an aluminum alloy, the method comprising coating at least a portion of the substrate with a composition comprising: (a) a film-forming resin;(b) particles comprising magnesium oxide, wherein the particles have a surface area of at least 10 square meters per gram and an average primary particle size of no more than 200 nanometers; and(c) an alkoxy-monosilane. 2. The method of claim 1, wherein said composition further comprises an adhesion promoting component comprising at least one of: (a) tannic acid, gallic acid, phosphoric acid, phosphorous acid, citric acid, malonic acid, a derivative thereof, or a mixture thereof;(b) a metal phosphate;(c) an organophosphate;(d) an organophosphonate; and(e) a phosphatized epoxy resin. 3. The method of claim 1, wherein the aluminum alloy comprises: (a) 90.7 to 94.7 weight percent aluminum;(b) 3.8 to 4.9 weight percent copper;(c) 1.2 to 1.8 weight percent magnesium; and(d) 0.3 to 0.9 weight percent manganese. 4. The method of claim 3, wherein the substrate is a bare metal substrate comprising the aluminum alloy. 5. The method of claim 1, with the proviso that the substrate is not aluminum plated steel. 6. The method of claim 1, wherein the particles have a surface area of 30 to 500 square meters per gram. 7. A method for coating a metal substrate comprising an aluminum alloy, the method comprising depositing a coating directly to at least a portion of the metal substrate, the coating being deposited from a composition comprising: (a) a film-forming resin;(b) particles comprising magnesium oxide, wherein the particles have a surface area of at least 10 square meters per gram and an average primary particle size of no more than 200 nanometers; and(c) an alkoxy-monosilane compound;wherein the aluminum alloy comprises (i) 90.7 to 94.7 weight percent aluminum;(ii) 3.8 to 4.9 weight percent copper;(iii) 1.2 to 1.8 weight percent magnesium; and(iv) 0.3 to 0.9 weight percent manganese. 8. The method of claim 7, with the proviso that the substrate is not aluminum plated steel. 9. The method of claim 7, wherein the particles have a surface area of 30 to 500 square meters per gram. 10. A method for coating an aluminum alloy substrate, the method comprising depositing a coating directly to at least a portion of the aluminum alloy substrate, the coating being deposited from a composition comprising: (a) a film-forming resin;(b) particles comprising magnesium oxide, wherein the particles have a surface area of at least 10 square meters per gram and an average particle size of no more than 200 nanometers; and(c) an alkoxy-monosilane compound;wherein the composition is free of phosphoric acid. 11. The method of claim 10, wherein the particles have a surface area of 30 to 500 square meters per gram. 12. A substrate comprising an aluminum alloy, wherein the substrate is at least partially coated with a primer coating comprising: (a) a film-forming resin;(b) particles comprising magnesium oxide, wherein the particles have a surface area of at least 10 square meters per gram and an average primary particle size of no more than 200 nanometers; and(c) an alkoxy-monosilane compound;wherein the particles and the alkoxy-monosilane are dispersed in the film-forming resin. 13. The aluminum substrate of claim 12, wherein said primer coating further comprises an adhesion promoting component comprising at least one of: (a) tannic acid, gallic acid, phosphoric acid, phosphorous acid, citric acid, malonic acid, a derivative thereof, or a mixture thereof;(b) a metal phosphate;(c) an organophosphate;(d) an organophosphonate; and(e) a phosphatized epoxy resin. 14. The substrate of claim 12, wherein the aluminum alloy comprises: (a) 90.7 to 94.7 weight percent aluminum;(b) 3.8 to 4.9 weight percent copper;(c) 1.2 to 1.8 weight percent magnesium; and(d) 0.3 to 0.9 weight percent manganese. 15. The substrate of claim 14, wherein the primer coating is deposited directly over a bare metal substrate comprising the aluminum alloy. 16. The substrate of claim 12, wherein the primer coating is deposited directly over a bare metal substrate comprising an aluminum alloy. 17. The substrate of claim 12, with the proviso that the substrate is not aluminum plated steel. 18. The substrate of claim 12, wherein the particles have a surface area of 30 to 500 square meters per gram.
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