The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 10, 1995
Filed:
Sep. 02, 1994
Dieter Guhl, Hattingen, DE;
Sven-Uwe Vallerien, Essen, DE;
Th. Goldschmidt AG, Essen, DE;
Abstract
A method is described for the preparation of electrically conductive, infrared-reflecting layers on glass, glass-ceramic or enamel surfaces by spraying and thermally decomposing liquid Sn(IV) compounds and fluorine compounds as preparations containing doping agents on to the surface heated to 400.degree. to 800.degree. C., yet below their softening point, wherein, as liquid preparations, ionically stabilized, organic tin(IV) acid sols are used, which contain aliphatic alcohols or ketones with, in each case, at most 6 carbon atoms in the molecule or esters with a boiling point below 180.degree. C. as liquid, organic medium, as well as fluoride ions in an adequate amount for doping. The preparations are homogenous, stable for a long time, and can readily be diluted with alcohols, ketones, and other polar solvents. The tin oxide layers, produce with the preparations on the substrates, have a high transparency in the wavelength of visible light, a low surface resistance and a high reflection in the infrared wavelength region.