Process for the coating of objects

Details Process for the coating of objects Process for the coating of objects

C - Chemistry, Metallurgy

08

J

C08J 7/04 (2006.01)

Patent

CA 2623579

Process for the coating of objects, comprising contacting the objects with a composition comprising an additive, a film-forming binder and optionally a distributing agent, at a temperature below the softening temperature Tp of the objects and at a temperature at which the binder can form a film, forming and consolidating an additive-containing layer of binder on the surface of the objects, the objects being kept in mutual motion while they are being contacted with the composition and while the additive-containing layer of binder is being formed and consolidated, which process is carried out in a container bounded by walls of which the temperature of the walls is so much lower than the application temperature that formation of a film of the binder on the walls is prevented.

L'invention porte sur un procédé de revêtement d'objets. Ledit procédé consiste à mettre en contact les objets avec une composition renfermant un additif, un liant filmogène et éventuellement un agent de répartition, à une température inférieure à la température de ramollissement Tp des objets, et à une température à laquelle le liant est capable de former un film; à former et à consolider une couche de liant contenant l'additif sur la surface des objets, les objets étant maintenus en mouvement mutuel pendant leur mise en contact avec la composition et pendant la formation et la consolidation de la couche de liant contenant l'additif. Ledit procédé est mis en oeuvre dans un récipient délimité par des parois dont la température est nettement plus inférieure que la température d'application, ce qui permet d'empêcher la formation d'un film du liant sur les parois.

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