Patent ID: 9102101
Filing Date: 2015-08-11
Classification: B29C,B29D,B29L,B60C,Y10T

Abstract:
1. A process for manufacturing a continuous strip of self-sealing product having very low hardness, being very elastic and highly tacky, said strip being intended for feeding a converting machine, during which a thermoplastic protective film is deposited on the surface of the strip, and comprising the steps during which: a strip of self-sealing product P is extruded to a first cross section through an extrusion die, at the outlet of the extrusion die, the strip is surrounded over its entire perimeter using a thermoplastic film by welding the film to itself, and wherein, after having deposited the film around the strip, the strip is calendered in order to bring it down to a second cross section, smaller in area than the first cross section.