Articles of manufacture containing increased stability low concentration gases and methods of making and using the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-085/00
B65D-090/04
C23C-008/06
출원번호
UP-0168948
(2005-06-28)
등록번호
US-7794841
(2010-10-04)
발명자
/ 주소
Benesch, Robert
Haouchine, Malik
Jacksier, Tracey
출원인 / 주소
American Air Liquide, Inc.
대리인 / 주소
Holguin, Donna Blalock
인용정보
피인용 횟수 :
1인용 특허 :
76
초록▼
Articles of manufacture and methods of making and using same concern a container having an internal space and a passivated internal metal surface. The container contains a composition of an acid gas and a balance gas contained within the internal space and in contact with the passivated internal met
Articles of manufacture and methods of making and using same concern a container having an internal space and a passivated internal metal surface. The container contains a composition of an acid gas and a balance gas contained within the internal space and in contact with the passivated internal metal surface. The stability of the acid gas concentration over time is enhanced.
대표청구항▼
What is claimed is: 1. An article of manufacture comprising: a) a container having an internal space having a passivated internal metal surface, said passivated internal metal surface selected from the group consisting of aluminum and aluminum alloys; and b) a composition to be stored in the contai
What is claimed is: 1. An article of manufacture comprising: a) a container having an internal space having a passivated internal metal surface, said passivated internal metal surface selected from the group consisting of aluminum and aluminum alloys; and b) a composition to be stored in the container, said composition comprising an acid gas and a balance gas contained within the internal space and in contact with the passivated internal metal surface; wherein i) the acid gas has an intended concentration in the balance gas of less than 500 ppb; ii) the acid gas is selected from the group consisting of carbon disulfide, carbonylsulfide, and compounds within the formula Y—S—X wherein S is sulfur, X and Y are the same or different and are independently selected from the group consisting of hydrogen, alkyl, aryl, oxygen, hydoxyl, amine, aminosilane, and alcohol; and iii) the passivated internal metal surface comprises A) a coating that is the reaction product of a silicon-containing material and an oxygen-containing material, and B) a coating that is an amount of the concentrated acid gas adsorbed on or in the passivated internal metal surface which is effective to enhance the stability of the intended concentration over time, the concentration of the concentrated acid gas being at least 50,000 times greater than the concentration of the acid gas of the composition that is to be stored in the container. 2. The article of manufacture of claim 1, wherein the acid gas is selected from the group consisting of hydrogen sulfide, carbonyl sulfide, sulfur dioxide, methylthiol, ethylthiol, n-propylthiol, i-propylthiol, and benzylthiol. 3. The article of manufacture of claim 1, wherein the acid gas is selected from the group consisting of hydrogen sulfide, carbonyl sulfide, and sulfur dioxide. 4. The article of manufacture of claim 1, wherein the silicon-containing material is selected from the group consisting of compounds within the general formula (II): SiR1R2R3R4 (II) wherein R1, R2, R3, and R4 are the same or different and are independently selected from the group consisting of hydrogen, halogen, amine, alkyl, aryl, halogenated alkyl, and halogenated aryl. 5. The article of manufacture of claim 1, wherein the oxygen-containing compound is selected from the group consisting of moisture, molecular oxygen, metal oxides, and mixtures thereof. 6. The article of manufacture of claim 1, wherein the silicon-containing compound is silane. 7. The article of manufacture of claim 1, wherein the silicon-containing compound is a methyl-containing silane selected from the group consisting of methylsilane, dimethylsilane, trimethylsilane and tetramethylsilane. 8. The article of manufacture of claim 1, wherein the acid gas contained within the internal space has a concentration of about 50-100 ppb. 9. The article of manufacture of claim 8, wherein the acid gas is hydrogen sulfide. 10. The article of manufacture of claim 8, wherein the acid gas is carbonyl sulfide. 11. The article of manufacture of claim 8, wherein the acid gas is sulfur dioxide. 12. The article of manufacture of claim 1, wherein the balance gas is selected from the group consisting of noble gases, nitrogen, ethylene, propylene, and mixtures thereof. 13. The article of manufacture of claim 1, wherein the article is selected from a piping system, a tubing system, a manifold, a gas cylinder having a cylinder valve, and a ton unit. 14. The article of manufacture of claim 13, wherein the internal metal surface to be treated is aluminum. 15. The article of manufacture of claim 1, wherein the internal metal surface to be treated is aluminum.
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