Compositions of methyl perfluoroheptene ethers, 1,1,1,2,2,3,4,5,5,5-decafluoropentane and trans-1,2-dichloroethylene and uses thereof

Patent metadata

Field	Value
Publication number	US-9428717-B2
Application number	US-201514707116-A
Country	US
Kind code	B2
Filing date	May 8, 2015
Priority date	May 13, 2014
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

Disclosed are compositions comprising 90 to 99 weight percent trans-1,2-dichloroethylene, from 0.1 to 8 weight percent methylperfluoroheptene ethers and from 0.1 to 2.0 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoropentane, wherein the composition is non-flammable. The disclosure further provides a method for removing residue from a surface of an article comprising: (a) contacting the article with a composition comprising a composition of MPHE, HFC-4310mee and trans-1,2-dichloroethylene; and (b) recovering the surface from the composition.

First claim

What is claimed is:

1. A composition comprising 90 to 99 weight percent trans-1,2-dichloroethylene, from 0.1 to 8 weight percent methylperfluoroheptene ethers and from 0.1 to 2.0 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoropentane, wherein the composition is non-flammable.

2. The composition of claim 1 , comprising 93 to 97 weight percent trans-1,2-dichloroethylene, from 3 to 6 weight percent methylperfluoroheptene ethers and from 0.1 to 2.0 weight percent 1,1,1,2,2,3,4,5,5,5-decafluoropentane.

3. The composition of claim 1 , comprising 95 weight percent trans-1,2-dichloroethylene, from 4.0 to 4.4 weight percent methylperfluoroheptene ethers and from 0.6 to 1.0 weight percent 1,1,1,2,2,3,4,5,5,5-decafluoropentane.

4. A composition consisting essentially of 90 to 99 weight percent trans-1,2-dichloroethylene, from 0.1 to 8 weight percent methylperfluoroheptene ethers and from 0.1 to 2.0 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoropentane, wherein the composition is non-flammable.

5. The composition of claim 4 , consisting essentially of 93 to 97 weight percent trans-1,2-dichloroethylene, from 3 to 6 weight percent methylperfluoroheptene ethers and from 0.1 to 2.0 weight percent 1,1,1,2,2,3,4,5,5,5-decafluoropentane.

6. The composition of claim 4 , consisting essentially of 95 weight percent trans-1,2-dichloroethylene, from 4.0 to 4.4 weight percent methylperfluoroheptene ethers and from 0.6 to 1.0 weight percent 1,1,1,2,2,3,4,5,5,5-decafluoropentane.

7. A method for removing residue from a surface of an article comprising:
a. contacting said surface with a composition comprising 90 to 99 weight percent trans-1,2-dichloroethylene, from 0.1 to 8 weight percent methylperfluoroheptene ethers and from 0.1 to 2.0 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoropentane; and
b. recovering said surface from the composition.

8. The method of claim 7 , wherein said composition further comprises a propellant.

9. The method of claim 8 , wherein said propellant is comprised of air, nitrogen, carbon dioxide, 2,3,3,3-tetrafluoropropene, trans-1,3,3,3-tetrafluoropropene, 1,2,3,3,3-pentafluoropropene, difluoromethane, trifluoromethane, difluoroethane, trifluoroethane, tetrafluoroethane, pentafluoroethane, hydrocarbons, or dimethyl ether, or combinations thereof.

10. The method of claim 7 , wherein said composition further comprises at least one surfactant.

11. The method of claim 7 , wherein said contacting is accomplished by vapor degreasing.

12. The method of claim 11 , wherein said vapor degreasing is performed by:
a. boiling the composition; and
b. exposing the article to vapors of said composition.

13. The method of claim 7 , wherein said contacting is accomplished by a first step of immersing the article in said composition, wherein the composition is at a temperature greater than ambient temperature or room temperature.

14. The method of claim 13 , wherein the composition is at a temperature of about the boiling point of the composition.

15. The method of claim 13 , further comprising a second step of immersing the article in said composition, wherein said composition is at a temperature lower than the temperature of the first immersing step.

16. The method of claim 15 , wherein the composition in the second immersing step is at ambient temperature or room temperature.

17. The method of claim 15 , further comprising the steps of boiling the composition and exposing the article to vapors of the boiling composition.

18. The method of claim 7 , wherein the composition is at ambient temperature or room temperature.

19. The method of claim 7 , wherein said contacting is accomplished by wiping the surface with an object saturated with the composition.

Assignees

• Chemours Co Fc Llc
• Chemours Co Fc Llc

Inventors

• Robin Mark L
• Kikuchi Hideaki

Classifications

• C11D3/43

  Solvents · CPC title

• G03F7/426

  containing organic halogen compounds; containing organic sulfonic acids or salts thereof; containing sulfoxides · CPC title

• C23G5/02806

  containing only chlorine as halogen atom · CPC title

• C11D3/245

  containing fluorine · CPC title

• C11D7/5063 Primary

  Halogenated hydrocarbons containing heteroatoms, e.g. fluoro alcohols · CPC title