Preflux coating composition for copper
AssigneeArgus International
InventorsBernard J. Costello, James Langan, Robert Harkins
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Abstract
A preflux composition suitable for use as a preflux for protecting the solderability of copper during a heating cycle comprising rosin, antioxidant, and a solvent system comprised of glycol ether and terpene and further including a dibasic acid, process for protecting the solderability of copper which is to be subjected to a heating cycle prior to soldering comprising using said preflux composition, and articles comprising printed circuits or wiring boards which have copper areas coated with said preflux composition.
Claims3
A composition suitable for use as a preflux for protecting the solderability of copper during the heating cycle comprising rosin, antioxidant, and a solvent system comprised of glycol ether and terpene and further including sufficient dibasic acid to impart cleanability to copper coated with said composition.
Dependencies are inferred from the claim text.