US 4,379,184 AGranted

Process for forming a reflecting copper coating on a face of a glass substrate

OwnerNikolai S. Tsvetkov, Igor I. Maleev +7inventors

InventorsNikolai S. Tsvetkov, Igor I. Maleev, Irina E. Opainich, Lidia A. Lobkovskaya, Alexandr R. Bogush, Alexandra D. Sozanskaya, Evgeny I. Onischak, Evgeny I. Gladyshevsky, Mikhail D. Opainich

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Abstract

A process for forming a reflecting copper coating on a face of a glass substrate, consisting in activating the glass face in a 0.0005 to 0.007% by weight aqueous solution of SnCl.sub.2.2H.sub.2 O and a 0.005 to 0.15% by weight aqueous solution of AgNO.sub.3, chemically coating the activated face of the glass substrate with copper for 3 to 15 minutes in a coppering solution preheated to 30.degree. to 65.degree. C., followed by stabilizing the coated face of the glass substrate with an aqueous solution of a stabilizer and drying thereof.

Claims7

Dependent claims

A process for forming a reflecting copper coating on a face of a glass substrate, comprising the steps of:

(a) activating the glass face by contacting it with a 0.0005 to 0.007% by weight aqueous solution of SnCl.sub.2.2H.sub.2 O to sensitize it, then contacting, the sensitized glass face with a 0.005 to 0.15% by weight aqueous solution of AgNO.sub.3 ;
(b) chemically coating the activated face of the glass substrate with copper for 3 to 15 minutes in a coppering solution preheated to 30.degree. to 65.degree. C.;
(c) stabilizing the coated fact of the glass substrate with an aqueous solution of a stabilizer;
(d) drying the stabilized copper coated face of the glass substrate.

1 more element

Dependencies are inferred from the claim text.