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Machine translation
1. (WO1980000936) A PROCESS FOR PRODUCING PLASTIC FOILS WITH INCREASED SURFACE FRICTION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000936    International Application No.:    PCT/SE1979/000221
Publication Date: 15.05.1980 International Filing Date: 31.10.1979
IPC:
B29C 47/00 (2006.01), B29C 47/06 (2006.01)
Applicants:
Inventors:
Priority Data:
7811311 01.11.1978 SE
Title (EN) A PROCESS FOR PRODUCING PLASTIC FOILS WITH INCREASED SURFACE FRICTION
(FR) PROCEDE DE PRODUCTION DE FEUILLES PLASTIQUES AVEC FRICTION EN SURFACE ACCRUE
Abstract: front page image
(EN)Process for producing foils or films of plastic material with increased surface friction. According to the invention, two or more foils are extruded, laminated and stretched together, the supply of material (6) to the extrusion of the foil or foils which are to form the surface layer (7) being controlled in such a way that the amount of plastic material is insufficient to form a coherent layer when the laminated foil is stretched. In this way the surface layer (7) will break at stretching and give a rough surface with an increased surface friction.
(FR)Procede de production de feuilles ou pellicules en materiau plastique ayant une friction en surface accrue. Deux ou plusieurs feuilles sont extrudees, laminees et etirees ensemble, l"alimentation en materiau (6) a l"extrusion de la feuille ou des feuilles qui doivent former la couche superficielle (7) etant commandee de telle maniere que la quantite de materiau plastique soit insuffisante pour former une couche coherente lorsque la feuille laminee est etiree. De cette maniere la couche superficielle (7) se cassera a l"etirement et donnera une surface rugueuse avec une friction superficielle plus elevee.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)