Surface treating method and surface treating agent

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...

Reexamination Certificate

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C148S247000, C148S253000, C148S254000, C148S255000, C148S258000, C148S261000, C148S273000, C205S244000, C205S245000, C205S246000

Reexamination Certificate

active

07030183

ABSTRACT:
A plating solution containing zinc, an electrically conductive salt, an adsorbent, and at least one of mono- to hexavalent metal ions. A treatment using either a solution which contains, all per liter, 2–60 g Zn, 40–300 g caustic alkali, 0.01–50 g adsorbent, 0.002–10 g Fe, 0.002–10 g Co, 0.05–30 g Mn, 0.001–2 g Cu, 0.005–10 g Ni, 0.002–3 g of at least one chosen from among Mo, W, V, Ti, Al, Ca, Ba, and Sn, and 0.01–30 g aliphatic amine or aliphatic amine polymer or a solution which contains, all per liter, 2–40 g Zn, 40–170 g caustic alkali, 0.01–50 g adsorbent, either 0.001–3 g Fe and 0.001–3 g Co or 0.005–5 g Fe and 0.005–5 g Ni, and 0.01–30 g aliphatic amine or aliphatic amine polymer.

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