| 摘要 |
PURPOSE: An anti-fingerprint agent with excellent anti-corrosion and soldering property for copper metal is provided. CONSTITUTION: The anti-fingerprint agent for the copper metal comprises anionic urethane acrylic resin 20 wt.%, anti-corrosion agent 0.1 to 5 wt.%, alcohol 0.1 to 50 wt.% and a balance of water as solvent. Further, anti-fingerprint agent comprises 0.05 to 1 parts by weight of wetting agent, 0.1 to 5 parts by weight of leveling agent, 0.01 to 2 parts by weight of defoaming agent, based on the weight of 100 parts by weight of the anti-fingerprint agent. The anti-corrosion agent is selected from the group consisting of triazole, tetrazole, benzotriazole, benzimidazole and imidazole. In the anti-fingerprint agent, the ratio of the anti-corrosion agent and alcohol is 1:1 to 1:10. The anionic urethane acrylic resin has mean molecular weight of 8000 to 30000, pH 6 to 8 and viscosity(cps) range of 200 to 1000.
|
