B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
403/2, 252/37, 1
B01J 35/08 (2006.01) C23C 18/28 (2006.01) C23C 18/30 (2006.01) H05K 3/18 (2006.01) H05K 3/38 (2006.01)
Patent
CA 1233158
- i - PATENT APPLICATION of JAMES WATSON NEELY for CATALYTIC PROCESS AND SYSTEM DN 82-56 MSA:ets ABSTRACT OF THE DISCLOSURE A process is provided for conducting or catalyzing a chemical reaction on a surface by depositing on the sur- face an adherent monolayer of positively charged polymer particles containing an active agent distributed through- out the polymer and contacting the deposited adherent monolayer with a suitable reactant. The positively charged polymer particles have diameters of less than about 3 micrometers and preferably less than 1 microme- ter. The polymer particles are suspended in water to form an aqueous colloidal dispersion. The dispersion is useful as a stable catalyst system and particularly useful for complete electroless deposition of a conductive metal on printed circuit board surfaces and the walls of through- holes formed therein.
464009
Gowling Lafleur Henderson Llp
Rohm And Haas Company
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