Corina N Goia from Weeki Wachee, FL, age 68

Method For Producing Ultra-Fine Metal Flakes
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US Patent:

20060207385, Sep 21, 2006
Filed:

Mar 15, 2005
Appl. No.:

11/080192
Inventors:

Dan Goia - Potsdam NY, US
Corina Goia - Potsdam NY, US
International Classification:

B22F 9/04
US Classification:

075255000, 075354000
Abstract:

The present invention provides a metallic composition, which includes a plurality of ultra-fine copper flakes having at least one desirable feature, such as oxidation resistance and excellent dispersibility in a non-aqueous system. Also provided is a method for forming compositions having a plurality of ultra-fine copper flakes, and the metallic composition produced therewith.

Silver Coated Copper Flakes And Methods Of Their Manufacture
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US Patent:

20180264548, Sep 20, 2018
Filed:

Jan 6, 2016
Appl. No.:

15/542174
Inventors:

- Potsdam NY, US
Corina Goia - Potsdam NY, US
John I. Njagi - Potsdam NY, US
International Classification:

B22F 1/02
C23C 18/44
C23C 18/16
C23C 18/54
B22F 1/00
Abstract:

Compositions having copper flakes coated with silver, where the silver is present as a hermetically closed metal shell around the copper, are described. The hermetically closed metal shell can limit oxidation of copper for at least 365 days at a temperature of less than 100 C. The composition can also contain palladium in an amount of about 1% or less by weight of silver in the shell. Palladium limits the migration of copper from the core flakes to the silver shell at temperatures below 250 C. Methods of manufacturing copper flakes coated can include the steps of treating copper flakes with an acid to form acid treated copper flakes, treating the acid treated copper flakes with a polyamine to form polyamine treated copper flakes, depositing silver on the polyamine treated copper flakes to form copper flakes comprising silver deposits, and depositing silver onto the copper flakes comprising silver deposits.

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Corina N Goia