METHOD FOR THE PRODUCTION OF HIGHLY ORIENTED POLYOLEFIN RIBBONS, TEXTILES AND TECHNICAL FLEXIBLE SHEET MATERIALS PRODUCED THEREFROM, ANDTHE USE THEREOF IN PROTECTIVE BODIES FOR THE PROTECTION FROM BALLISTIC PROJECTILES AND THE LIKE

摘要

The invention relates to a method for the production of high-strength rib bons having a high modulus of elasticity made of a highly molecular polyolef in, wherein the polyolefins, particularly polypropylene and polyethylene, ar e extruded through a slotted nozzle, are then subjected to a temperature of 85° to 135 °C for a duration of at least one second, the films are then cut into individual ribbons, if necessary, and stretched at temperatures between 90° to 165 °C in one or more steps, are rolled up or further processed dire ctly into textiles or technical flexible sheet materials. The ribbons can be laminated into multi-layer flexible sheet materials by using adhesives or a dhesion promoters, the flexible sheet materials being particularly suitable as protection from ballistic projectiles. In this case particularly in the f orm of plate-shaped or flexible compound bodies.