Azeotropic compositions comprising fluorinated compounds for cleaning applications
AssigneeE. I. Du Pont de Nemours and Company
InventorsBarbara Haviland Minor, Melodie A. Schweitzer
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Abstract
The present invention relates to compositions comprising fluorinated olefins or fluorinated ketones, and at least one alcohol, halocarbon, hydrofluorocarbon, or fluoroether and combinations thereof. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.
Claims14
An azeotropic or azeotrope-like composition comprising an azeotropic or azeotrope-like composition of:
- about 42 to about 84 weight percent F13E and about 58 to about 16 weight percent trans-1,2-dichloroethylene.
An azeotropic or azeotrope-like composition comprising an azeotropic or azeotrope-like composition of:
- 66.3 weight percent F13E and 33.7 weight percent trans-1,2-dicholoroethylene having a vapor pressure of about 14.7 psia (101 kPa) at a temperature of about 36.3° C.
Dependencies are inferred from the claim text.