Process for the production of coated mouldings

B - Operations – Transporting – 29 – C

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Details

B29C 37/00 (2006.01) B29C 45/16 (2006.01) B29C 45/73 (2006.01)

Patent

CA 2703041

The present invention relates to a process for the production of coated mouldings, by injecting a moulding composition into an injection mould and cooling the composition to obtain a moulding, and altering the injection mould in such a way as to produce an intermediate space between a surface to be coated of the moulding and the inner surface of the injection mould, and using injection moulding to charge a reactive mixture to the resultant intermediate space, where the temperature of at least a portion of the injection mould is increased for the curing of the reactive mixture. The present invention moreover describes a system for the conduct of the process described above.

La présente invention concerne un procédé de fabrication de corps moulés revêtus, dans lequel une pâte de moulage est injectée dans un moule de moulage par injection et se refroidit en donnant un corps moulé, le moule de moulage par injection étant modifié de manière à obtenir un espace intermédiaire entre la surface du corps moulé qui doit être revêtue et la surface intérieure du moule de moulage par injection, l'espace intermédiaire ainsi obtenu étant rempli d'un mélange réactif, et la température d'au moins une partie du moule de moulage par injection étant augmentée pour obtenir le durcissement du mélange réactif. Par ailleurs, la présente invention concerne une installation en vue de l'exécution du procédé décrit ci-dessus.

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