US5403514A
Expired / Lapsed
US
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Solvent composition and water-repellent/oil-repellent composition using the same
Assignee: Canon Inc
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Filing: 1992-10-02
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Granted: 1995-04-04
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Expires: 2012-10-02
Abstract
Abstract Provided is a nonflammable solvent composition comprising 40% by volume or more of a non-flammable perfluoro organic compound.
Inventors
- 👤 Hirohide Matsuhisa
- 👤 Satoko Midorikawa
- 👤 Sumire Mima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:05
CPC Classifications
B; B01; B01D; B01D11/00; C; C11; C11D; C11D7/00; C11D7/50; C11D7/5004; C11D7/5009; C11D7/5018; C23; C23G; C23G5/00; C23G5/02; C23G5/024; C23G5/028; C23G5/02803; C23G5/032
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
34 words
A nonflammable liquid degreasing solvent consisting essentially of 40% by volume or more of a non-flammable perfluoro organic compound and 40% by volume or more of a flammable liquid organic compound. perfluoro organic compound.
Claim 2
Dependent Claim
34 words
A nonflammable liquid degreasing solvent consisting essentially of 40% by volume or more of a non-flammable perfluoro organic compound and 40% by volume or more of a flammable liquid organic compound. perfluoro organic compound.
Claim 3
Dependent Claim
24 words
The solvent composition according to claim 1 wherein said perfluoro organic compound has a vapor pressure of 30 Tort or more at 25° C.
Claim 4
Dependent Claim
20 words
The solvent composition according to claim 1 wherein said flammable organic compound has a solubility parameter of 7.5 or less.
Claim 5
Dependent Claim
36 words
The solvent composition according to claim 1 wherein said flammable organic compound contains at least one selected from the group consisting of diethyl ether, diisopropyl ether, methyl tert-butyl ether, n-pentane, n-hexane, isohexane, isoheptane, isooctane and hexamethyldisiloxane.
Claim 6
Dependent Claim
28 words
The solvent composition according to claim 1 wherein said perfluoro organic compound is at least one selected from the group consisting of perfluroalkanes, perfluorocycloalkanes and perfluoro cyclic ethers.
Claim 7
Dependent Claim
48 words
The solvent composition according to claim 5 wherein said perfluroalkanes and perfluorocycloalkanes are C 5 F 12 , C 6 F 14 , C 7 F 16 , C 8 F 18 , C 6 F 12 , C 7 F 14 and C 8 F 16 .
Claim 8
Dependent Claim
35 words
The solvent composition according to claim 3 wherein said perfluoro cyclic ethers are selected from the group consisting of C 6 F 12 O, C 7 F 14 O and C 8 F 16 O.
Claim 9
Dependent Claim
27 words
The solvent composition according to claim 1 wherein said flammable organic compound is at least one selected from the group consisting of ether compounds, alkanes and cycloalkanes.
Claim 10
Dependent Claim
56 words
The solvent composition according to claim 8 wherein said ether compound is a compound represented by the formula R.sub.1 --O--R.sub.2 wherein R 1 is C n H 2n+1 or --Si(CH 3 ) 3 , R 2 is C m H 2m+1 or --Si(CH 3 ) 3 , and n and m meet 1≦n, m≦4 and 2≦n+m≦6.
Claim 11
Dependent Claim
31 words
The solvent composition according to claim 8 wherein said alkanes and cycloalkanes are compounds represented by the formula C.sub.p H.sub.2p+2 and C.sub.q H.sub.2q wherein p and q meet 5≦p and q≦8.
References Cited (Backward Citations)
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