Interfacial Instabilities in a Two Layer Coextrusion during Cable Coating
Birane Toure a), Jiri Vlcek b), Juan Marin c), and Stig Jarle Hauko d)
a) Nexans Research Center 29, Rue Pré Gaudry-69353  Lyon cedex 07, France
b) Jiri Vlcek, Compuplast International, Inc., Nerudova 158, 76001 Zlin, Czech Republic
c) Juan Marin, Cjtek, Rue des Uttins 30-1400 Yverdon, Switzerland
d) Stig Jarle Hauko, Nexans Norway AS, Klingavn. 2, N-7800 Namsos Norway

Abstract. The paper describes a study leading to a modification of a coextrusion die. This modification stabilized the coextrusion process and removed instabilities observed on a cable produced on the original die.

Keywords:Coextrusion in polymers, polymer flow simulation, cable coating, sheathing, interfacial instabilities.