Patent ID: 9133312
Filing Date: 2015-09-15
Classification: B29B,C08J,C08K,C08L,Y02P

Abstract:
1. Method for isocyanate-free production of a synthetic material product I comprising a) mixing thermoplastic polyurethane (TPU) and a nanoclay component comprising b) mixing 10-90% of the intermediate product I obtained from a) with 8-30 wt % of a polyol component, and optionally additional TPU, wherein intermediate product II is produced, c) mixing 50-70 wt % of the intermediate product II obtained from b) with 20-40 wt % polycarbonate (PC) and/or 6-18 wt % polycaprolactone component (PCL), wherein the synthetic material product I is produced, wherein one or more for said mixings in a) to c) occurs in a segmented single, twin or multiple screw melt extruder at melting temperatures between 80 and 300 degrees C. and wherein no isocyanate is produced in a) to c).