Patent ID: 6027766
Filing Date: 2000-02-22
Classification: B01J,C03C,Y10T

Abstract:
A method comprising the steps of:manufacturing a continuous glass float ribbon having a first major surface and an opposite major surface defined as a second major surface, the first major surface having tin diffused therein characteristic of forming the glass float ribbon on a molten tin bath,positioning a chemical vapor deposition coating apparatus over the surface of the float ribbon at a paint in the manufacture of the float ribbon where the float ribbon has a temperature of at least about 400.degree. C. (752.degree. F.);directing a metal oxide precursor selected from the group consisting of titanium tetrachloride, titanium tetraisopropoxide and titanium tetraethoxide in a carrier gas stream through said chemical vapor deposition apparatus over a surface of the float ribbon and annealing the float ribbon to produce titanium dioxide in the crystalline phase as a photocatalytically-activated self-cleaning coating over the glass float ribbon, whereby said coating has a photocatalytically-activated self-cleaning reaction rate of least about 2.times.10.sup.-3 cm.sup.-1 min.sup.-1.