EP0465037A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Solvent composition
Assignee: 3M Co
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Filing: 1991-06-14
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Granted: —
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Expires: 2011-06-14
Abstract
Abstract Homogeneous, organic, liquid solvent compositions are described which include (a) a fluorine-free organic liquid, (b) a perfluorinated organic liquid, and (c) a co-solvent which is miscible with components (a) and (b). The compositions have utility in diverse applications, such as cleaning and degreasing, aerosol compositions, fixing of toner powder, heat transfer media, thermal and electrical insulation, etc. The solvent compositions have low ozone depletion potentials. This makes them attractive as replacement solvents for conventional chlorofluorocarbonss.
Inventors
- 👤 Frans c/o Minnesota Mining and Audenaert
- 👤 Constant F. C/O Minnesota Mining And Dewinter
- 👤 Richard M. C/O Minnesota Mining And Flynn
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 16:33
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/22; C11D7/26; C11D7/261; C07; C07C; C07C19/00; C07C19/08; C11D7/50; C11D7/5004; C11D7/5013; G; G03; G03G; G03G11/00; C11D7/24; C11D7/263; C11D7/264; C11D7/266; C11D7/28; C11D7/32; C11D7/3263; H; H05; H05K; H05K3/00; H05K3/22; H05K3/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
29 words
A homogeneous, organic, liquid solvent composition comprising: (a) a fluorine-free organic liquid; (b) a perfluorinated organic liquid, and (c) a co-solvent which is miscible with components (a) and (b).
Claim 2
Dependent Claim
22 words
A composition according to claim 1, wherein component (a) is selected from the group consisting of ketones, alcohols, esters, and chlorinated compounds.
Claim 3
Dependent Claim
46 words
A composition according to any of claims 1 to 2, wherein component (a) is selected from the group consisting of ketones, alcohols, esters, nitriles, amides, hydrocarbons, ethers, and chlorinated compounds, and wherein component (b) has a boiling point in the range of about 25°C. to 100°C.
Claim 4
Dependent Claim
54 words
A composition according to any of claims 1 to 3, wherein component (a) is present in an amount of about 5 to 15% by weight; component (b) is present in an amount of about 35 to 85% by weight; and component (c) is present in an amount of about 10 to 50% by weight.
Claim 5
Dependent Claim
16 words
A composition according to any of claims 1 to 4, wherein component (b) comprises a perfluoroalkane.
Claim 6
Dependent Claim
34 words
A composition according to any of claims 1 to 5, wherein component (c) is selected from the group consisting of 1,3-bis(trifluoromethyl) benzene; 1-hydropentadecafluoroheptane; 2,2,3,3,4,4,4-heptafluorobutanol; methyl heptafluorobutyrate; hexafluoro-2-propanol; 1,1-dichloro-2,2,2-trifluoroethane; 1-chloro-3,3,3-trifluoropropane; 1,2-dichlorotrifluoroethane; 1,1-dichloro-1-fluoroethane; 1,2-dichloro-1,1-difluoroethane; 1,2,2-trichloro-1,1-difluoroethane; 2,2,3,3,3-pentafluoropropanol.
Claim 7
Independent Claim
40 words
A method for fusing a toner powder on a substrate by contacting said toner powder with a liquid composition, characterized in that the liquid composition comprises the homogeneous, organic, liquid solvent composition according to any of claims 1 to 6.
Claim 8
Independent Claim
39 words
A method for cleaning flux from a printed circuit board by contacting said flux with a liquid composition, characterized in that the liquid composition comprises the homogeneous, organic, liquid solvent composition according to any of claims 1 to 6.
Claim 9
Independent Claim
44 words
A method for treating a surface with a fluorochemical compound in an aerosol composition to impart oil and water repellency to said surface, characterized in that the aerosol composition comprises the homogeneous, organic, liquid solvent composition according to any of claims 1 to 6.
References Cited (Backward Citations)
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