Compositions comprising 1,2-dichloro-1,2-difluoroethylene for use in cleaning and solvent applications
The present application provides compositions comprising 1,2-dichloro-1,2-difluoroethylene (i.e., CFO-1112) and, optionally, an additional component. The present application further provides use of the compositions provided herein in cleaning, solvent, carrier fluid, and deposition applications.
1. A process for depositing a fluorolubricant on a surface comprising:
a) combining a fluorolubricant and a solvent, said solvent comprising
i) 1,2-dichloro-1,2-difluoroethylene, and, optionally,
ii) a compound selected from N-pentane, HFE-7000, R-1233xfB, R-1336mzzZ, dimethoxymethane, R-1345mzzE, R-43-10mee, R-365mfc, tetrahydrofuran, and R-153-10mzzy, to form a lubricant-solvent combination;
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.
2. The process of claim 1 , wherein the surface is selected from a semiconductor material, a metal, a metal oxide, a magnetic medium, a vapor deposited carbon, and a glass.
3. The process of claim 2 , wherein the surface is a magnetic medium.
4. The process of claim 3 , wherein the magnetic medium is a computer disk.
5. The process of claim 1 , wherein the contacting comprises dipping or immersing the surface in a bath comprising the fluorolubricant.
6. The process of claim 1 , wherein the contacting comprises spraying or spin coating the surface with the fluorolubricant.
7. The process of claim 1 , wherein the fluorolubricant concentration in the lubricant-solvent combination is from about 0.02 weight percent to about 0.5 weight percent.
8. The process of claim 1 , wherein the evaporating is performed at a temperature of from about 10° C. to about 40° C.
9. The process of claim 1 , wherein the fluorolubricant comprises a perfluoropolyether.
10. The process of claim 1 , wherein the fluorolubricant is a perfluoropolyether or a mixture of perfluoropolyethers.