Patent ID: 9156984
Filing Date: 2015-10-13
Classification: B29C,B29K,C08L,E01C

Abstract:
1. A method for preparing a plurality of coated binder units, which method comprises the steps of: (a) co-extruding a binder material, wherein said binder material comprises a bituminous binder or synthetic binder, and wherein said synthetic binder comprises a resin and oil, with a coating material, wherein said coating material is selected from a group consisting of a polymer, bitumen having a penetration at 25° C. of less than 5 dmm, sulphur, blends of said bitumen or said sulfur with filler materials, and blends of said bitumen or said sulfur with fibre materials, to form a coated binder material in the form of an extrudate, which said extrudate comprises a core of said binder material coated with a layer of said coating material; and (b) dividing said extrudate into said plurality of the coated binder units by means of a system which comprises a first loop comprising a first repeating sequence of first molds and a second loop comprising a second repeating sequence of second molds that are operatively engaged with each other whereby said coated binder units are formed within a region wherein said first loop and said second loop are operatively engaged by cutting said extrudate into pieces having edges of said coating material and sealing said edges by compression.