Patent ID: 6635315
Filing Date: 2003-10-21
Classification: B05D

Abstract:
A method for improving the smoothness of a film formed from a thermosetting liquid coating composition, comprising making adjustments in the application and heat curing of the thermosetting liquid coating composition onto a substrate, in such a manner that, at a temperature at which the thermal fluidity of the film reaches a maximum before the start of the curing reaction, the film has a storage modulus Gâ€² of about 0.5 to about 20 Pa at a stress of 0.5 Pa and a frequency of 0.1 Hz, a loss modulus Gâ€³ of about 1.0 to about 20 Pa at a stress of 0.5 Pa and a frequency of 0.1 Hz, and a storage modulus/loss modulus (Gâ€²/Gâ€³) ratio of about 0.3 to about 1.0.