Adherent coating for copper

Details Adherent coating for copper Adherent coating for copper

1987-01-14

1988-09-27

Pertilla, Theodore E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

525 58, C08L 6104, C08L 2904

Patent

active

047742798

ABSTRACT:
A primer coating composition suitable for coating the inner layers of multilayer boards is disclosed. The cured coating is capable of maintaining adhesion without outgassing for at least 10 seconds at 250.degree. C. It can be adhesion promoted for adherent electroless metal deposition with a chromic acid adhesion promotion solution. The coating composition comprises the product of reacting between 20 to 60% of a poly(vinyl acetal) resin with 80 to 40% of a phenolic resin in the presence of an acidic catalyst and a coupling agent having at least two amino substituted aromatic groups covalently bonded to a titanium or zirconium central atom via an oxygen containing linkage.

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patent: 4254007 (1981-03-01), Flowers et al.
patent: 4486466 (1984-12-01), Leech et al.
patent: 4522850 (1985-06-01), Leech

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