B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 47/38 (2006.01) B29C 47/10 (2006.01) B29C 47/76 (2006.01)
Patent
CA 2196655
The disclosure relates to a method and an apparatus for producing web-shaped plastic foil (19). By means of the apparatus according to the present invention, granulate or pulverulent polymer and particulate filler are intermingled, whereafter the mixture is extruded through a die aperture (18) for forming the finished plastic foil. In order to facilitate the intermingling of the above-disclosed starting materials, the granulate or pulverulent polymer is plasticized and de-aired prior to the admixture of the particulate filler.
Méthode et appareil de production d'un film plastique (19) en bande. A l'aide de l'appareil visé par l'invention, un polymère sous forme de granules ou de poudre et une charge sous forme de particules sont liés, après quoi ce mélange est extrudé par une filière (18) pour obtenir le film plastique fini. Pour faciliter le mélange des matériaux de départ précités, le polymère en granules ou en poudre est plastifié et désaéré avant d'être mélangé à la charge en particules.
Marks & Clerk
Tetra Laval Holdings & Finance Sa
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