Manufacture of a multicomponent polymeric product

Abstract

Abstract A PROCESS FOR THE MANUFACTURE OF A SYNTHETIC POLYMERIC PRODUCT CONSISTING OF A BASIC MASS HAVING A LARGE NUMBER OF ENDLESS THREADS EMBEDDED THEREIN, WHICH INCLUDES THE STEPS OF PLACING AT LEAST TWO POLYMERIC COMPONENTS (E.G., A POLYAMIDE AND A POLYESTER), WHILE IN THE LIQUID STATE, SIDE BY SIDE TO FORM A SINGLE MAIN STREAM, REPEATEDLY DIVIDING AND MULTIPLYING THE MAIN STREAM TO FORM A STREAM HAVING A FIRST MULTI-LAYER STRUCTURE, SUPERIMPOSING AT LEAST A SECOND MULTI-LAYER STRUCTURE ONTO THE FIRST, WITH THE LAYERS OF THE SECND BEING AT AN ANGLE TO THE FIRST MULTI-LAYER STRUCTURE AND THEREAFTER EXTRUDING THE RESULTING STREAM THROUGH A DIE. APPARATUS FOR EFFECTING THIS PROCESS INCLUDES A FEED MEANS FOR SUPPLYING AT LEAST TWO POLYMERIC COMPONENTS SIDE BY SIDE TO A MAIN CHANNEL. A FIRST MIXER IS LOCATED IN THE MAIN CHANNEL AND HAS STATIONARY GUIDING MEANS BY WHICH THE MAIN STREAM MAY BE REPEATEDLY DIVIDED AND DOUBLED INTO A STREAM HAVING A MULTI-LAYER STRUCTURE. A SECOND MIXER SIMILAR TO THE FIRST IS POSITIONED DOWNSTREAM THEREOF AND IS TURNED ON ITS LONGITUDINAL AXIS THROUGH AN ANGLE OF AT LEAST 10* SO THAT THE RESULTING STREAM HAS A SECOND LAYERED STRUCTURE THAT IS AT AN ANGLE TO THE FIRST LAYERED STRUCTURE FORMED IN THE FIRST MIXER. A DIE MEANS IS USED FOR EXTRUDING THE RESULTING STREAM.

Inventors

• 👤 Korstiaan J Marinus Van Drunen
• 👤 Wilhelmus J Fontijn

Bibliographic Details