Patent ID: 6136449
Filing Date: 2000-10-24
Classification: B05D,Y10T

Abstract:
A method for forming a hardened paint film, comprising the steps of:painting a solvent-based thermosetting base finishing coat onto the surface of an object to be painted,painting a thermosetting top finishing coat on top of the solvent based thermosetting base finishing coat wet-on-wet, andhardening the resulting paint films at the same time,wherein the thermosetting top finishing coat comprises a principal resin comprising a copolymer of a first vinyl monomer which has an aliphatic ring structure and other vinyl monomer(s) other than silicon monomers, in which the proportion of said first vinyl monomer in the total quantity of monomers is 20-50 wt %, and the proportion of other vinyl monomer(s) is 80-50 wt %, and which has a glass transition temperature of 0 to +60.degree. C., a solubility parameter of 9.0-11.0, and a weight-average molecular weight of 4000-30,000.