IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0025046
(2001-12-18)
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발명자
/ 주소 |
- Flynn, Richard M.
- Grenfell, Mark W.
- Moore, George G. I.
- Owens, John G.
- Milbrath, Dean S.
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출원인 / 주소 |
- 3M Innovative Properties Company
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인용정보 |
피인용 횟수 :
6 인용 특허 :
37 |
초록
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A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalky
A process for removing contaminants from the surface of a substrate comprises contacting the substrate with a cleaning composition comprising at least one mono-, di-, or trialkoxy-substituted perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, the compound optionally containing additional catenary heteroatoms. The compounds exhibit good solvency properties while being environmentally acceptable.
대표청구항
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1. A composition comprising (a) at least one mono-, di-, or trialkoxysubstituted perfluorocompound selected from the group consisting of perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, said compound
1. A composition comprising (a) at least one mono-, di-, or trialkoxysubstituted perfluorocompound selected from the group consisting of perfluoroalkane, perfluorocycloalkane, perfluorocycloalkyl-containing perfluoroalkane, or perfluorocycloalkylene-containing perfluoroalkane compound, said compound optionally containing one or more additional catenary heteroatoms; and (b) surfactant. 2. The composition of claim 1, wherein said compound has a boiling point in the range of from about 25° C. to about 200° C.3. The composition of claim 1, wherein said compound is represented by the general formula.4. The composition of claim 1, wherein the surfactant comprises a nonionic surfactant.5. The composition of claim 4, wherein the nonionic surfactant is selected from the group consisting of an ethoxylated alcohol, an ethoxylated alkylphenol, an ethoxylated fatty acids, an alkylaryl sulfonate, a glycerol ester, an ethoxylated fluoroalcohol, a fluorinated sulfonamide, and mixtures thereof.6. The composition of claim 1, wherein the composition comprises from about 0.1 to about 5 percent by weight surfactant.7. A composition comprising (a) a major amount of at least one compound selected from the group consisting of c-C 6F11CF2OC2H5, c-C6F11CF2OCH3, 4-CF3-c-C6F10CF2OCH3,CH 3OCF2-c-C6F10CF2OCH3, C4F9OC2H5, C4F9OCH3, c-C6F11OCH3, (CF3)2CFCF2OCH3, (CF3)2CFCF2OC2H5, C8F17OCH3, C2F5CF(OCH3)CF(CF3)2, CF3CF(OCH3)CF(CF3)2, C5F11OCH3, C5F11OC2H5, and C3F7OCH3; and (b) surfactant.8. The composition of claim 7, wherein the surfactant comprises a nonionic surfactant.9. The composition of claim 8, wherein the nonionic surfactant is selected from the group consisting of an ethoxylated alcohol, an ethoxylated alkylphenol, an ethoxylated fatty acids, an alkylaryl sulfonate, a glycerol ester, an ethoxylated fluoroalcohol, a fluorinated sulfonamide, and mixtures thereof.10. The composition of claim 7, wherein the composition comprises from about 0.1 to about 5 percent by weight surfactant.
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