Binary azeotrope and azeotrope-like compositions comprising perfluoroheptene

Patent metadata

Field	Value
Publication number	US-11767494-B2
Application number	US-201917051811-A
Country	US
Kind code	B2
Filing date	May 1, 2019
Priority date	May 3, 2018
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

The present application provides binary azeotrope or azeotrope-like compositions comprising perfluoroheptene and an additional component, wherein the additional component is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene. Methods of using the compositions provided herein in cleaning and carrier fluid applications are also provided.

First claim

What is claimed is:

1. A composition, comprising:
i) perfluoroheptene; and
ii) a compound selected from the group consisting of methyl acetate, tert-butyl acetate, isopropyl acetate, n-heptane, iso-octane, n-hexane, hexamethyldisiloxane, and cyclopentane;
wherein the methyl acetate, tert-butyl acetate, isopropyl acetate, n-heptane, iso-octane, n-hexane, hexamethyldisiloxane, or cyclopentane is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene.

2. The composition of claim 1 , wherein the perfluoroheptene comprises about 90 weight percent perfluorohept-3-ene and about 10 weight percent perfluorohept-2-ene.

3. The composition of claim 2 , wherein the composition comprises perfluoroheptene and methyl acetate, wherein the methyl acetate is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene.

4. The composition of claim 3 , wherein the composition consists essentially of from about 0.1 to about 60 weight percent perfluoroheptene and from about 99.9 to about 40 weight percent methyl acetate.

5. The composition of claim 2 , wherein the composition comprises perfluoroheptene and tert-butyl acetate, wherein the tert-butyl acetate is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene.

6. The composition of claim 5 , wherein the composition consists essentially of from about 87 to about 94 weight percent perfluoroheptene and from about 6 to about 13 weight percent tert-butyl acetate.

7. The composition of claim 2 , wherein the composition comprises perfluoroheptene and isopropyl acetate, wherein the isopropyl acetate is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene.

8. The composition of claim 7 , wherein the composition consists essentially of from about 70 to about 90 weight percent perfluoroheptene and from about 10 to about 30 weight percent isopropyl acetate.

9. The composition of claim 2 , wherein the composition comprises perfluoroheptene and n-heptane, wherein the n-heptane is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene.

10. The composition of claim 9 , wherein the composition consists essentially of from about 85 to about 95 weight percent perfluoroheptene and from about 5 to about 15 weight percent n-heptane.

11. The composition of claim 2 , wherein the composition comprises perfluoroheptene and iso-octane, wherein the iso-octane is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene.

12. The composition of claim 11 , wherein the composition consists essentially of from about 85 to about 99.9 weight percent perfluoroheptene and from about 0.1 to about 15 weight percent iso-octane.

13. The composition of claim 2 , wherein the composition comprises perfluoroheptene and n-hexane, wherein the n-hexane is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene.

14. The composition of claim 13 , wherein the composition consists essentially of from about 60 to about 80 weight percent perfluoroheptene and from about 20 to about 40 weight percent n-hexane.

15. The composition of claim 2 , wherein the composition comprises perfluoroheptene and hexamethyldisiloxane, wherein the hexamethyldisiloxane is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene.

16. The composition of claim 15 , wherein the composition consists essentially of from about 99.9 to about 90 weight percent perfluoroheptene and from about 0.1 to about 10 weight percent hexamethyldisiloxane.

17. The composition of claim 2 , wherein the composition comprises perfluoroheptene and cyclopentane, wherein the cyclopentane is present in the composition in an amount effective to form an azeotrope composition or azeotrope-like composition with the perfluoroheptene.

18. The composition of claim 17 , wherein the composition consists essentially of from about 99.9 to about 50 weight percent perfluoroheptene and from about 0.1 to about 50 weight percent cyclopentane.

19. A process for removing at least a portion of water from the surface of a wetted substrate, comprising contacting the substrate with the composition of claim 1 , and then removing the substrate from contact with the composition.

20. A process of depositing a fluorolubricant on a surface, comprising:
a) combining a fluorolubricant and a solvent to form a lubricant-solvent combination, wherein the solvent comprises a composition of claim 1 ;
b) contacting the lubricant-solvent combination with the surface; and
c) evaporating the solvent from the surface to form a fluorolubricant coating on the surface.

Assignees

• Chemours Co Fc Llc

Inventors

• Musyimi Harrison K

Classifications

• C11D7/5072 Primary

  Mixtures of only hydrocarbons · CPC title

• C11D7/509

  Mixtures of hydrocarbons and oxygen-containing solvents · CPC title

• C11D7/5095

  Mixtures including solvents containing other heteroatoms than oxygen, e.g. nitriles, amides, nitroalkanes, siloxanes or thioethers · CPC title

• C11D11/0023

  Chemistry & Metallurgy · mapped topic

• G11B5/7253

  Fluorocarbon lubricant · CPC title