A method for forming paint films and the painted objects

B - Operations – Transporting – 05 – D

Patent

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Details

B05D 1/36 (2006.01) C08J 7/04 (2006.01) C09D 7/12 (2006.01)

Patent

CA 2590474

To provide a method for forming paint films with which light colored paint films with which there is no yellowing with the passage of time due to sunlight (heat) and of which the brilliant color tone is retained can be formed on a polyolefin base material, and to provide the painted objects. [Means of Resolution] A method for forming paint films in which painting is carried out with a three-coat one-bake system in which a white base paint which contains titanium oxide is painted on a paint film where a primer paint has been painted on a polyolefin base material and dried, a light colored mica base coat paint is painted on wet~on-wet and then a clear paint is painted wet- on-wet over the top of this and then the paint films are heated and hardened, in which the primer paint, white base coat paint and mica base coat paint each contain from 0.2 to 5.0 parts by mass of a biphenylphosphate compound which can be represented by formula (1) per 100 parts by weight of resin solid fraction, and the painted objects which have been obtained by means of this method for forming paint films.

L'invention concerne un procédé de formation d'enduits, dont des enduits clairs, qui ne jaunissent pas au fil du temps du fait de la lumière du soleil (chaleur), mais maintiennent leur teinte lustrée. Ces enduits peuvent être formés sur un matériau de base polyoléfinique aux fins de peinturage d'objets. On décrit un procédé de formation d'enduits dans lequel le peinturage est réalisé au moyen d'un système à trois couches et cuisson simple. Dans ledit procédé, une couche de fond blanche contenant de l'oxyde de titane est peinte sur l'enduit, un enduit à amorce est disposé sur un matériau de base polyoléfinique et séché, une couche de fond en mica de couleur claire est peinte humide sur humide, puis une peinture claire est disposée humide sur humide en couche supérieure, et les enduits sont chauffés et durcis. L'enduit à amorce, la couche de fond blanche, et la couche de fond en mica contiennent chacun 0,2 à 5,0 parties en masse d'un composé de biphénylphosphate de formule (1) par 100 parties en poids d'une fraction solide de résine. On décrit des objets peints réalisés par le procédé de formation d'enduits de l'invention.

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