Patent ID: 8562883
Filing Date: 2013-10-22
Classification: B29B,B29C,B29K,C10G

Abstract:
1. A method for pelletizing wax or wax-like materials having a sharp melt point which comprises: (a) forming a wax or wax-like material having a sharp melt point into a liquid melt, a temperature of said liquid melt being above a melt point of said wax or wax-like material; (b) cooling the liquid melt material using cooling surfaces within a cooling extruder to a temperature below said melt point to cause the wax or wax-like material to change state to be in an extrudable solid condition, said step of cooling including exposing said wax or wax-like material to said extruder cooling surfaces to form cooled layers that are moved away from the extruder cooling surfaces and interspersed with warmer layers of wax or wax-like material into a mixture and then returning the mixture to the cooling surfaces for more heat energy reduction while said wax or wax-like material is in said cooling extruder; (c) extruding the mixture of said wax or wax-like material in said solid state through die orifices of a die plate to form strands; and (d) cutting the solid extruded strands with a rotary cutter in a cutting chamber absent any liquid to form said wax or wax-like material into pellets.