Coating composition
First Claim
1. A coating composition suitable for use as an electroless plating catalyst, said composition comprising a polymer solution having particles homogeneously dispersed therein said particles comprising an inert particulate carrier coated with a hydrous oxide of a metal insoluble in the polymer polution that is catalytic to electroless metal deposition when in a reduced form, said hydrous oxide having a metal content of from 0.5 to 50 grams per liter of coating composition.
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Accused Products
Abstract
The invention discloses a new electroless plating catalyst and a process of using the same for selective plating. The catalyst and process are especially adapted for formation of EMI shielding for electronic components. The electroless plating catalyst comprises particulates dispersed in a liquid film forming composition which particulates are coated with a hydrous oxide that is reduced to a catalytic metal in contact with an electroless plating solution.
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Citations
21 Claims
- 1. A coating composition suitable for use as an electroless plating catalyst, said composition comprising a polymer solution having particles homogeneously dispersed therein said particles comprising an inert particulate carrier coated with a hydrous oxide of a metal insoluble in the polymer polution that is catalytic to electroless metal deposition when in a reduced form, said hydrous oxide having a metal content of from 0.5 to 50 grams per liter of coating composition.
- 14. A coating composition suitable for use as an electroless plating catalyst, said composition comprising a polymer solution having particles homogeneously dispersed therein, said particles comprising a silver hydrous oxide insoluble in said polymer solution coated on an inert particulate carrier, said coating composition having silver present in a concentration of from 0.5 to 50 grams per liter of coating composition.
Specification