Process for producing cadmium stannate layers
AssigneeJenaer Glaswerk Schott & Gen.
InventorsHelmut Dislich, Paul Hinz, Gunther Wolf
Life of this patent
Estimating the term…
Abstract
A dipping process for the production of cadmium stannate layers on a substrate, preferably glass, which comprises: (a) dipping said substrate into an alcoholic solution of a reaction product containing cadmium and tin, said solution consisting essentially of compounds having hydrolyzable and pyrolyzable residues; (b) withdrawing the substrate from said solution in a humid atmosphere; and (c) gradually heating the coated substrate to 650.degree. C., whereby hydrolysis and pyrolysis removes said residues from the coated substrate to form a coated substrate in which the molar ratio Cd:Sn corresponds to that of said alcoholic dipping solution.
Claims9
In a dipping process for the production of cadmium stannate layers on a substrate, the improvement which comprises:
- (a) dipping said substrate into an alcoholic solution of a reaction product containing cadmium and tin derived from a cadmium compound and a tin compound, said solution consisting essentially of compounds having hydrolyzable and pyrolyzable residues;
- (b) withdrawing the substrate from said solution in an atmosphere sufficiently humid for the subsequent hydrolysis;
- and
- (c) gradually heating the coated substrate to 650.degree. C., whereby hydrolysis and pyrolysis removes said residues from the coated substrate to form a coated substrate in which the molar ratio Cd:Sn corresponds to that of said alcoholic dipping solution.
Dependencies are inferred from the claim text.