[미국특허]
Increased stability low concentration gases, products comprising same, and methods of making same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C23C-008/10
B32B-015/20
C23C-022/64
출원번호
UP-0622352
(2007-01-11)
등록번호
US-7799150
(2010-10-11)
발명자
/ 주소
Jacksier, Tracey
Benesch, Robert
출원인 / 주소
American Air Liquide, Inc.
대리인 / 주소
Holguin, Donna Blalock
인용정보
피인용 횟수 :
1인용 특허 :
75
초록▼
Methods of passivating a metal surface are described, the methods comprising the steps of i) exposing the metal surface to a silicon-containing passivation material; ii) evacuating the metal surface; iii) exposing the treated surface to a gas composition having a concentration of reactive gas that i
Methods of passivating a metal surface are described, the methods comprising the steps of i) exposing the metal surface to a silicon-containing passivation material; ii) evacuating the metal surface; iii) exposing the treated surface to a gas composition having a concentration of reactive gas that is greater than an intended reactive gas concentration of gas to be transported by the metal surface; iv) evacuating the metal surface to remove substantially all of the gas composition to enable maintenance of an increased shelf-life, low concentration reactive gas at an intended concentration; and v) exposing the metal surface to the reactive gas at the intended reactive gas concentration. Manufactured products, high stability fluids, and methods of making same are also described.
대표청구항▼
What is claimed is: 1. An article of manufacture comprising: a) a container having an internal space and a passivated internal metal surface; b) a composition contained within the internal space and in contact with the passivated internal metal surface, wherein i) the composition comprises a reacti
What is claimed is: 1. An article of manufacture comprising: a) a container having an internal space and a passivated internal metal surface; b) a composition contained within the internal space and in contact with the passivated internal metal surface, wherein i) the composition comprises a reactive gas and a matrix gas, the reactive gas being selected from the group consisting of nitrous oxide, nitric oxide, and mixtures thereof, and ii) the reactive gas has a concentration in the composition of no more than 1 part per million in the matrix gas, the concentration being substantially maintained; c) the passivated internal metal surface comprising: 1) the reaction product of a silicon-containing material and an oxygen-containing material selected from the group consisting of moisture, molecular oxygen, metal oxides, and mixtures thereof, and 2) an amount of the reactive gas adsorbed on the reaction product, the amount resultant from previous exposure of the reaction product to a high concentration of the reactive gas before evacuation of the high concentration reactive gas from the internal space prior to filling the internal space with the composition, the high concentration being many times the concentration of reactive gas being substantially maintained. 2. The manufactured product of claim 1, wherein said metal is selected from the group consisting of aluminum, aluminum alloys, steel, iron and combinations thereof. 3. The manufactured product of claim 1, wherein said silicon-containing material is selected from the group consisting of compounds within the formula: SiR1R2R3R4 wherein R1, R2, R3, and R4 are independently selected from the group consisting of hydrogen, halogen, alkyl, aryl, amine, halogenated alkyl, and halogenated aryl. 4. The manufactured product of claim 3, wherein said compound is a methyl-containing silane. 5. The manufactured product of claim 4, wherein said methyl-containing silane is selected from the group consisting of methylsilane, dimethylsilane, trimethylsilane and tetramethylsilane. 6. The manufactured product of claim 1, wherein said clean and passivated metal surface has a surface area and said reaction product is present in the clean and passivated metal surface in an amount at least about 1 gram of product per square meter of surface area. 7. The manufactured product of claim 1, wherein said clean and passivated metal surface is porous and has a pore volume of at least about 0.1 milliliters per gram of reaction product.
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