COATING COMPOSITION OF FORMING AN ALKALI-SOLUBLE FILM AND APPLICATIONS THEREOF

摘要

A coating composition capable of forming an alkali-soluble lubricating film excellent in suitability for press forming and dragging resistance, which comprises as major ingredients (A) a water-based polyurethane composition an d (B) a lubricity-imparting agent contained in an amount of 1 to 30 wt.% based on the water-based polyurethane composition on a solid basis; and a metallic product which has been treated so as to have a lubricative surface and be excellent in press formability and dragging resistance, characterized by having been coated with the coating composition in a thickness of 0.5 to 5 .mu.m on a dry basis. Preferably, the coating composition contains as anothe r major ingredient (C) silica particles in an amount of 1 to 30 wt.% based on the water-based polyurethane composition on a solid basis.