Back to results
US 4,363,673 AGranted
Process for the removal of carbon from solid surfaces
AssigneeThe Dow Chemical Company
InventorsWilliam J. Settineri, Harold E. Klassen, Milton C. Tolly
Life of this patent
Estimating the term…
Abstract
A method of removing residual carbon from solid surfaces, such as metal or glass, by contacting the surface with sulfur trioxide and thereafter rinsing the surface. The surface may be subsequently contacted with a passivating solution.
Claims10
A process for removing a carbon layer from a solid surface having such layer thereon which comprises contacting the surface with a gaseous fluid consisting essentially of sulfur trioxide and thereafter, rinsing the surface.
Dependencies are inferred from the claim text.