Claims
- 1. Azeotrope-like compositions consisting essentially of from about 60.0 to about 94.0 weight percent 1,1-dichloro-1-fluoroethane, from about 5.0 to about 35.5 weight percent dichlorotrifluoroethane selected from the group consisting of 1, 2-dichloro-1,2,20trifluoroethane, 1,1-dichloro-2,2,2-trifluoroethane or mixtures thereof and from about 1.0 to about 4.7 weight percent methanol wherein the composition with 1,2-dichloro-1,2,2-trifluoroethane boils at about 29.70.degree. C..+-.0.3.degree. C. at 760 mm Hg, the composition with 1,1-dichloro-2,2,2-trifluoroethane boils at about 29.58.degree. C..+-.0.3.degree. C. at 760 mm Hg and the composition with mixtures of the dichlorotrifluoroethanes boils at about 29.64.degree. C..+-.0.3.degree. C. at 760 mm Hg.
- 2. Azeotrope-like compositions according to claim 1 consisting essentially of from about 70.0 to about 94.0 weight percent 1,1-dichloro-1-fluoroethane, from about 5.0 to about 26.0 weight percent dichlorotrifluoroethane and from about 1.0 to about 4.0 weight percent methanol.
- 3. Azeotrope-like compositions according to claim 1 wherein said dichlorotrifluoroethane is 1,2-dichloro-1,2,2-trifluoroethane.
- 4. Azeotrope-like compositions according to claim 1 wherein said dichlorotrifluoroethane is 1,1-dichloro-2,2,2-trifluoroethane.
- 5. Azeotrope-like compositions according to claim 1 consisting essentially of about 75.0 to about 90.0 weight percent, 1,1-dichloro-1-fluoroethane, about 8.0 to about 21.0 weight percent dichlorotrifluoroethane and about 2.0 to about 3.8 weight percent methanol.
- 6. Azeotrope-like compositions according to claim 5 wherein said dichlorotrifluoroethane is 1,2-dichloro-1,2,2-trifluoroethane.
- 7. Azeotrope-like compositions according to claim 5 wherein said dichlorotrifluoroethane is 1,1-dichloro-2,2,2-trifluoroethane.
- 8. Azeotrope-like compositions consisting essentially of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane selected from the group consisting of 1, 2-dichloro-1,2,2-trifluoroethane, 1,1-dichloro-2,2,2-trifluoroethane or mixtures thereof and methanol wherein the composition with 1,2-dichloro-1,2,2-trifluoroethane boils at about 29.70.degree. C..+-.0.3.degree. C. at 760 mm Hg, the composition with 1,1-dichloro-2,2,2-trifluoroethane boils at about 29.58.degree. C..+-.0.3.degree. C. at 760 mm Hg and the composition with mixtures of the dichlorotrifluoroethanes boils at about 29.64.degree. C..+-.0.3.degree. C. at 760 mm Hg.
- 9. Azeotrope-like compositions consisting essentially of 1,1-dichloro-1-fluoroethane, 1,2-dichloro-1,2,2-trifluoroethane and methanol which boil at about 29.70.degree. C..+-.3.degree. C. at 760 mm Hg.
- 10. Azeotrope-like compositions consisting essentially of 1,1-dichloro-1-fluoroethane, 1,1-dichloro-2,2,2-trifluoroethane and methanol which boil at about 29.58.degree. C..+-.0.3.degree. C. at 760 mm Hg.
- 11. The method of cleaning a solid surface which comprises treating said surface with an azeotrope-like composition as defined in claim 1.
- 12. The method of cleaning a solid surface which comprises treating said surface with an azeotrope-like composition as defined in claim 2.
- 13. The method of cleaning a solid surface which comprises treating said surface with an azeotrope-like composition as defined in claim 3.
- 14. The method of cleaning a solid surface which comprises treating said surface with an azeotrope-like composition as defined in claim 4.
- 15. The method of cleaning a solid surface which comprises treating said surface with an azeotrope-like composition as defined in claim 5.
- 16. The method of cleaning a solid surface which comprises treating said surface with an azeotrope-like composition as defined in claim 6.
- 17. The method of cleaning a solid surface which comprises treating said surface with an azeotrope-like composition as defined in claim 7.
- 18. The method of cleaning a solid surface which comprises treating said surface with an azeotrope-like composition as defined in claim 8.
- 19. The method of cleaning a solid surface which comprises treating said surface with an azeotrope-like composition as defined in claim 9.
- 20. The method of cleaning a solid surface which comprises treating said surface with an azeotrope-like composition as defined in claim 10.
Parent Case Info
This is a continuation in part of application Ser. No. 290,124, filed December 27, 1988.
US Referenced Citations (2)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
290124 |
Dec 1988 |
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