Claims
- 1. A composition consisting essentially of from 97.5 to 89.0 wt-% of a fluorochlorohydrocarbon selected from the group consisting of the dichlorotrifluoroethanes and the dichloromonofluoroethanes, from 2.0 to 8.0 wt-% of an alkanol with 1 to 4 carbon atoms, and from 0.5 to 3 wt-% of an ester selected from the group consisting of ethyl propionate and methyl propionate.
- 2. A composition according to claim 1, wherein said fluorochlorohydrocarbon is selected from the group consisting of 1,1-dichloro-2,2,2-trifluoroethane (R123) and 1,1-dichloro-1-fluoroethane (R141b).
- 3. A composition consisting essentially of from 97.5 to 89.0 wt-% of dichlorotrifluoroethane, from 2.0 to 8.0 wt-% of an alkanol with l to 4 carbon atoms, and from 0.5 to 3 wt-% of an ester selected from the group consisting of ethyl propionate and methyl propionate.
- 4. A composition according to claim 1, wherein said dichlorotrifluoroethane is 1,1-dichloro-2,2,2-trifluoroethane (R123).
- 5. A composition according to claim 1, wherein said alkanol is selected from the group consisting of methanol, ethanol, isopropanol, n-propanol, n-butanol, sec.-butanol and tert.-butanol.
- 6. A composition according to claim 5, wherein said alkanol is selected from the group consisting of methanol, ethanol and isopropanol.
- 7. A composition according to claim 1, further comprising from about 0.01 to 5 wt-% of a stabilizer selected from the group consisting of nitroalkanes, alkaline oxides and alkanols, relative to the total weight of the composition.
- 8. A composition according to claim 7, containing from about 0.05 to 1 wt-% stabilizer, relative to the total weight of the composition.
- 9. A method of cleaning an article comprising contacting said article with a composition according to claim 1.
- 10. A method according to claim 9, whereins said contacting is effected by immersing the article to be cleaned in said composition.
- 11. A method according to claim 9, wherein said contacting is effected by spraying said composition on the article.
- 12. A method of vapor degreasing an article comprising subjecting an article to be vapor degreased to the vapors of a composition according to claim 1.
- 13. A method of removing soldering flux or soldering flux residue from the surface of a printed circuit board contaminated therewith, said method comprising contacting the surface of said printed circuit board with a composition according to claim 1.
Priority Claims (2)
Number |
Date |
Country |
Kind |
3900804 |
Jan 1989 |
DEX |
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3911078 |
Apr 1989 |
DEX |
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Parent Case Info
This application is a division of application Ser. No. 07/461,117, filed Jan. 4, 1990, now U.S. Pat. No. 5,114,609.
US Referenced Citations (7)
Foreign Referenced Citations (7)
Number |
Date |
Country |
1248131 |
Jan 1989 |
CAX |
2942799 |
Apr 1980 |
DEX |
3342852 |
Jun 1984 |
DEX |
3335870 |
Apr 1985 |
DEX |
2072328 |
Sep 1971 |
FRX |
2033422 |
May 1980 |
GBX |
2046292 |
Nov 1980 |
GBX |
Divisions (1)
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Number |
Date |
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Parent |
461117 |
Jan 1990 |
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