Claims
- 1. A method of applying a silicone lubricant to a surface of an article, comprising the steps of
- (a) coating a surface of said article with a nonflammable liquid composition comprising a silicone lubricant; a fluorine-free solvent in which said silicone lubricant is soluble; and a highly fluorinated organic compound selected from the group consisting of hydrochlorofluorocarbons, hydrofluorocarbons and chlorine-free perfluorocarbons; wherein said liquid composition comprises an amount of said highly fluorinated organic compound sufficient to render the composition nonflammable; and
- (b) evaporating said highly fluorinated organic compound and said fluorine-free solvent.
- 2. The method of claim 1, wherein said highly fluorinated organic compound has a boiling point of from -50.degree. C. to 100.degree. C.
- 3. The method of claim 1, wherein said highly fluorinated organic compound contains from 40% to 83% by weight fluorine.
- 4. The method of claim 1, wherein said highly fluorinated organic compound contains from 2 to 8 carbon atoms.
- 5. The method of claim 1, wherein said highly fluorinated organic compound contains from 5 to 8 carbon atoms.
- 6. The method of claim 1, wherein said highly fluorinated organic compound is perfluorinated.
- 7. The method of claim 1, wherein said highly fluorinated organic compound is selected from the group consisting of perfluoropentane, perfluorohexane, perfluoroheptane, perfluoro-N-methylmorpholine, and perfluoro-dimethylcyclobutane.
- 8. The method of claim 1, wherein said fluorine-free solvent has a boiling point of from 25.degree. C. to 150.degree. C.
- 9. The method of claim 1, wherein said fluorine-free solvent is an alkane.
- 10. The method of claim 1, wherein said fluorine-free solvent is selected from the group consisting of n-hexane, n-heptane, n-octane, n-nonane, t-butanol, hexamethyldisiloxane, and isopropylether.
- 11. The method of claim 1, wherein the boiling point of said fluorine-free solvent is at least 38.degree. C. higher than the boiling point of said highly fluorinated organic.
- 12. The method of claim 1, wherein said silicone lubricant is a polydialkylsiloxane.
- 13. The method of claim 1, wherein said composition comprises from 10% to 50% by volume of said highly fluorinated organic compound, from 50% to 80% by volume of said fluorine-free solvent, and from 1% to 30% by volume of said silicone lubricant.
- 14. The method of claim 1, wherein there is a sufficient amount of said highly fluorinated organic compound in said liquid composition such that said liquid composition comprises two layers; a first layer comprising said highly fluorinated organic compound, said silicone lubricant, and said fluorine-free solvent; and a second layer consisting essentially of said highly fluorinated organic compound.
Parent Case Info
This is a division of application Ser. No. 08/068,683 filed May 27, 1993, now U.S. Pat. No. 5,352,378.
US Referenced Citations (18)
Foreign Referenced Citations (3)
Number |
Date |
Country |
0380102A1 |
Jan 1990 |
EPX |
0465037A1 |
Aug 1991 |
EPX |
0494648A2 |
Jan 1992 |
EPX |
Non-Patent Literature Citations (1)
Entry |
"Ozone Treaty Tightened, CFC Substitutes Controlled," Chemical and Engineering News, p. 5, (Dec. 7, 1992). |
Divisions (1)
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Number |
Date |
Country |
Parent |
68683 |
May 1993 |
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