Solvent compositions comprising unsaturated fluorinated hydrocarbons
AssigneeE.I. du Pont de Nemours and Company
InventorsMario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N. Swearingen
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Abstract
Disclosed is a method for removing residue from a surface comprising: contacting the surface with a composition comprising at least one unsaturated fluorinated hydrocarbon selected from the group consisting of compounds having the formula E- or Z—R1CH═CHR2, wherein R1 and R2 are, independently, C1 to C6 perfluoroalkyl groups, or C1 to C6 hydrofluoroalkyl groups, and recovering the surface from the composition.
Claims28
A method for removing residue from a surface comprising:
- (a) contacting the surface with a composition consisting essentially of an unsaturated fluorinated hydrocarbon having the formula E- or Z—R1CH═CHR2, wherein R1 is C2F5 and R2 is CF2C2F5;
- (b) recovering the surface from the composition.
A solvent composition consisting essentially of unsaturated fluorinated hydrocarbon having the formula R1CH═CHR2, wherein R1 is C2F5 and R2 is CF2CF2CF3.
A method for depositing a fluorolubricant on a surface comprising:
- (a) combining a fluorolubricant and a solvent, said solvent consisting essentially of an unsaturated fluorinated hydrocarbon having the formula E- or Z—R1CH═CHR2, wherein R1 is C2F5 and R2 is CF2C2F5;
- (b) contacting the combination of lubricant-solvent with the surface;
- and
- (c) evaporating the solvent from the surface to form a fluorolubricant coating on the surface.
Dependencies are inferred from the claim text.