IP Library Granted Patent US 9,428,717
Granted Patent B2
US 9,428,717 · App. 14/707,116 · Granted Aug 30, 2016

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

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Quick Facts
Patent No.
US 9,428,717
App. No.
14/707,116
Granted
Aug 30, 2016
Kind
B2
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.

Claims (23)

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.

Assignments (2)
SECURITY INTEREST Recorded Apr 4, 2018
From: THE CHEMOURS COMPANY FC, LLC
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 045846/0011 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 16, 2015
From: ROBIN, MARK L.; KIKUCHI, HIDEAKI
To: THE CHEMOURS COMPANY, FC, LLC.
Reel/Frame 035846/0502 →