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US 4,901,910 AGranted
Perfluorinated propyl derivative compounds for vapor bath soldering
AssigneeAir Products and Chemicals, Inc.
InventorsFrank K. Schweighardt, Webb I. Bailey, John T. Lileck, John K. Graybill, Eugene G. Lutz
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Abstract
A method of vapor bath soldering wherein vapor bath compositions include compounds of the formula: ##STR1## wherein the carbon rings are fully fluorinated and R is selected from the group consisting of fluorine, --CF.sub.3 or --CF(CF.sub.3).sub.2.
Claims9
In a method of soldering wherein a component to be soldered is immersed in a vapor bath to melt the solder, and the component is then withdrawn from the vapor bath, the improvement comprising that the vapor bath is composed substantially of compounds having the formula:
- ##STR6## wherein the carbon rings are fully fluorinated and R is selected from the group consisting of fluorine, --CF.sub.3 or --CF(CF.sub.3).sub.2.
Dependencies are inferred from the claim text.