PATENTSCOPE will be unavailable a few hours for maintenance reason on Tuesday 19.11.2019 at 4:00 PM CET
Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1991009156) AZEOTROPE-LIKE COMPOSITIONS OF 1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE, 1,2-DICHLOROETHYLENE, AND ALKANOL HAVING 3 TO 7 CARBON ATOMS
Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

What is claimed is:

1. Azeotrope-like compositions comprising effective amounts of 1,1,2-trichloro-1,2,2-trifluoroethane,
1,2-dichloroethylene, and 2-methyl-2-propanol or 3-pentanol.

2. The azeotrope-like compositions of claim l
comprising from about 55 to about 70 weight percent said
1,1,2-trichloro-1,2,2-trifluoroethane: from about 30 to about 42 weight percent trans-1,2-dichloroethylene; and from about 0.01 to about 3.0 weight percent said 2-methyl-2-propanol which boil at about 44.5°C at 760 mm Hg.

3. The azeotrope-like compositions of claim 2
comprising from about 58 to about 67 weight percent said
1,1,2-trichloro-1,2,2-trifluoroethane; from about 33 to about 41 weight percent said trans-1,2-dichloroethylene; and from about 0.01 to about 1.0 weight percent said 2-methyl-2-propanol.

4. The azeotrope-like compositions of claim 1
comprising from about 55 to about 70 weight percent said
1,1,2-trichloro-1,2,2-trifluoroethane; from about 30 to about 42 weight percent trans-1,2-dichloroethylene; and from about 0.01 to about 3.0 weight percent said 3-pentanol which boil at about 45.1ºC at 760 mm Hg.

5. The azeotrope-like compositions of claim 4
comprising from about 58 to about 67 weight percent said
1,1,2-trichloro-1,2,2-trifluoroethane; from about 33 to about 41 weight percent said trans-1,2-dichloroethylene; and from about 0.01 to about 1.0 weight percent said 3-pentanol.

6. Stabilized azeotrope-like compositions comprising the azeotrope-like compositions of claim 2 and effective stabilizing amounts of a lower 1,2-epoxy alkane and at least one of lower alkoxyphenol, phosphite ester, and lower cyclic alkene.

7. Stabilized azeotrope-like compositions comprising the azeotrope-like compositions of claim 3 and effective stabilizing amounts of a lover 1,2-epoxy alkane and at least one of lover alkoxyphenol. phosphite ester, and lower cyclic alkene.

8. Stabilized azeotrope-like compositions comprising the azeotrope-like compositions of claim 4 and effective stabilizing amounts of a lover 1,2-epoxy alkane and at least one of lover alkoxyphenol. phosphite ester, and lover cyclic alkene.

9. Stabilized azeotrope-like compositions comprising the azeotrope-like compositions of claim 5 and effective stabilizing amounts of a lover 1,2-epoxy alkane and at least one of lover alkoxyphenol. phosphite ester, and lover cyclic alkene.

10. A method of cleaning a solid surface which comprises treating said surface with said azeotrope-like composition of claim 2.