COATING MATERIAL FOR METAL AND METALLIC CONTAINER COATED WITH THE COATING MATERIAL

摘要

A coating material for metals which, when applied to a metal sheet or metallic container, can form a coating film free from pinholes and excellent in corrosion resistance, suitability for retortion, impact resistance, processing resistance, wearing resistance, adhesion to the metal, retention of the flavor of contents, etc.; and a metallic container coated with the coating material. The coating material for metals contains thermoplastic resin particles having an average primary-particle diameter of 10 to 1,000 nm which are obtained by cooling a solution of the thermoplastic resin. Also provided is a process for producing the coating material for metals which comprises (a) the step of obtaining a solution of a thermoplastic resin in an organic solvent, (b) the step of cooling the solution to obtain a suspension of particles of the thermoplastic resin which have an average primary-particle diameter of 10 to 1,000 nm, (c) the step of separating the particles from the suspension, and (d) the step of dispersing in a solvent the particles separated.