Coating processes – With pretreatment of the base – Preapplied reactant or reaction promoter or hardener
Reexamination Certificate
2006-08-08
2006-08-08
Lam, Cathy F. (Department: 1775)
Coating processes
With pretreatment of the base
Preapplied reactant or reaction promoter or hardener
C427S301000, C106S001110, C428S209000
Reexamination Certificate
active
07087267
ABSTRACT:
A method of immobilizing a catalyst on a substrate surface involves providing novel ligating copolymers comprising functional groups capable of binding to a substrate surface and functional groups capable of ligating to catalysts such as metal ions, metal complexes, nanoparticles, or colloids; applying the ligating copolymer to a substrate surface to cause the ligating copolymer to bind thereto, and contacting the modified substrate surface with a solution of a catalyst, causing the catalyst to be ligated by the ligating copolymer and thus immobilized on the substrate surface. The ligating copolymer may be patterned on the substrate surface using a method such as microcontact printing. A method of selectively metallizing a substrate in a desired pattern involves using a ligating chemical agent comprising functional groups capable of binding to a substrate surface and functional groups capable of ligating to electroless plating catalysts; applying the ligating chemical agent to a substrate in a desired pattern using microcontact printing to cause the ligating chemical agent to bind thereto; contacting the modified substrate surface with a solution of an electroless plating catalyst, causing the catalyst to be ligated by the ligating chemical agent and thus bound to the surface; and metallizing the catalyzed regions of the substrate surface using electroless plating.
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Afzali-Ardakani Ali
Breen Tricia Lynn
Khojasteh Mahmoud Mostafa
Vella Sarah Jane
Lam Cathy F.
Morris, Esq. Daniel P.
Ohlandt, Greeley, Ruggiero & Perte, L.L.P.
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