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:
Aug. 31, 1999
Filed:
Jul. 14, 1997
Applicant:
Inventors:
Stojan Djokic, Edmonton, CA;
Maurice Dubois, Fort Saskatchewan, CA;
Ross H Lepard, Fort Saskatchewan, CA;
Assignee:
N.V. Union Miniere S.A., Brussels, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; B05D / ;
U.S. Cl.
CPC ...
427216 ; 427217 ; 427405 ; 427437 ; 428403 ;
Abstract
A process for the preparation of silver coated particles useful as polymer fillers is provided. Copper coated, or copper particles are dispersed in an alkaline ammoniacal solution to remove impurities and activate the surfaces thereof. A combined completing and reducing agent is added. Finally, a solution containing silver ions is used to coat the particles with a uniform layer of silver.