WERKWIJZE VOOR DE VERVAARDIGING VAN POLYMEERFOELIE DOOR EXTRUSIE.

摘要

Apparatus for improving the adhesion or pinning of an extruded polymer film to a moving quenching member, by maintaining in the absence of corona discharge, the quenching member at an electrical potential differing from the potential of the extrusion die, the magnitude of said potential being sufficient to increase the adherence of the film to the quenching member.