C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
C25D 5/56 (2006.01) C08G 61/12 (2006.01) C25D 5/54 (2006.01) H05K 3/42 (2006.01)
Patent
CA 2069865
The invention provides a process for enabling direct metallization of nonconductors. Strongly-adherent insoluble polymeric products are deposited in one process step on the surface of the nonconductor from an acidic aqueous solution (optionally containing a solubilizer) of initially-nonconductive oligomers, monomer/oligomer mixtures, or monomers or mixtures of monomers of five-membered heterocycles, by contact with a non-rinsable insoluble coating containing manganese dioxide which has been adsorbed on the surfaces of the nonconductor from a solution containing permanganates. The electrical conductance of the polymeric products is sufficient to permit deposition of metal on the polymer surface from galvanic baths through application of an electrical current.
Bressel Burkhard
Mahlkow Hartmut
Atotech Deutschland Gmbh
Marks & Clerk
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