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:
May. 05, 1998
Filed:
Mar. 06, 1995
Applicant:
Inventors:
Billy Valter Sodervall, Markaryd, SE;
Thomas Lundeberg, Lidingo, SE;
Assignee:
Adtech Holding, St. Helier, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428624 ; 428625 ; 428626 ; 428670 ; 428672 ; 428673 ; 428461 ; 428465 ;
Abstract
A thin silver layer is deposited on the surface of a nonconducting substrate using an electroless process. The surface is cleaned and activated in aqueous solution containing stannous tin. The silver is deposited as a colloidal material from an aqueous solution of a silver-containing salt in the absence of an electric current, but in the presence of a deposition control agent. Optionally, the silver layer is stabilized with an aqueous solution of a platinum-group metal and/or gold. The resulting silver layer is uniform and of 2-2000 .ANG. thickness; it strongly adheres to the substrate.