| 摘要 |
A process is provided for imparting transparency to a multi-layered polymeric film comprising passing a continuous polymeric web into the nip formed by a pair of counter-rotating rolls, one of said rolls being a pressure roll and the other, a chill roll having a matte surface; extruding a molten polymeric film into the nip between said polymeric web and said chill roll to form a multi-layered film, while maintaining an inert liquid on at least that portion of the chill roll which contacts said extruded film.
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