ハイパーブランチポリマー、金属微粒子及び有機酸を含む無電解めっき下地剤

摘要

[Problem] To provide a novel, environmentally friendly primer used as a preprocessing step in electroless plating, the primer enabling processing to be readily performed in a small number of steps, and costs to be minimized. [Solution] A primer for forming a metallic plating film on a substrate using electroless plating, the primer including an organic acid, metal microparticles, and a hyperbranched polymer having an ammonium group on a molecular terminal and a weight-average molecular weight of 500 to 5,000,000.