Patent ID: 6589379
Filing Date: 2003-07-08
Classification: B29C,B32B,D06N,Y10T

Abstract:
A method of manufacturing floor covering comprising:supplying a first colored polymer composition having a first color; forming a first section of co-extruded laminate having a colored layer whose color depends on the first colored polymer composition; changing a formulation of the first colored polymer composition to thereby supply a second colored polymer composition having a second color; forming a second section of co-extruded laminate, said second section having a colored layer whose color depends on both the first and second colored polymer compositions, the colored layer of said second section having a color that changes through intermediate shades between the first color and the second color along a length of the second section; forming a third section of co-extruded laminate having a colored layer whose color depends on the second colored polymer composition; and laminating together at least a wear layer and a quantity of said second section, such that the colored layer of said second section is not visible, when viewed through the wear layer; wherein the first, second and third sections are formed in succession by the same extruder.