Method of protecting glass surfaces using submicron refractory particles
AssigneeCorning Incorporated
InventorsGordon F. Foster, Noshir B. Havewala, Robert D. Shoup
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Abstract
A method of protecting a glass surface from damage, particularly where a stack of glass sheets is thermally processed at elevated temperatures. The method involves applying a coating of an inert, refractory material in the form of submicron particles to at least one of two opposed glass surfaces.
Claims20
A method of separating two otherwise contacting glass articles to protect their opposed surfaces during heat treatment, the method comprising coating at least one of the opposed glass surfaces with at least a monolayer of inert, refractory particles that are submicron in size and that remain non-adherent during thermal treatment, whereby the coating may be easily removed.
A method of heat treating a plurality of glass sheets having opposed surfaces which comprises coating at least one surface of each glass sheet with at least a monolayer of inert, refractory particles that are submicron in size and that remain non-adherent during thermal treatment whereby the coating may be easily removed, stacking the coated sheets so that at least one of each pair of adjacent surfaces has a coating, subjecting the stack to a predetermined temperature for a predetermined time, cooling and removing the coating without loss of surface quality on the glass surface.
Dependencies are inferred from the claim text.