Extruded wood imitation component and process
First Claim
1. An extruded wood imitation component comprising a solid core containing a mix of coloured thermoplastic polymer material and having veins of contrasting coloured polymer throughout said core and on outer surfaces of said component to simulate natural wood.
1 Assignment
0 Petitions
Accused Products
Abstract
An extruded wood imitation component and process is described. The component has a solid core containing coloured polymer material formed from a mix of coloured thermoplastic polymer with veins of contrasting coloured polymer throughout the core and on outer surfaces of the component simulating natural wood. In the extrusion process the mixture includes coloured polymer pellets of different colours and sizes which are mixed and melted in an extruder under controlled conditions to provide contrasting streaks of molten polymer throughout a molten extruded core and on outer surfaces of the core of the extrudate which exits the land of the die.
-
Citations
22 Claims
- 1. An extruded wood imitation component comprising a solid core containing a mix of coloured thermoplastic polymer material and having veins of contrasting coloured polymer throughout said core and on outer surfaces of said component to simulate natural wood.
-
13. An extrusion process for the fabrication of wood imitation components, said process comprising the steps of:
-
i) providing a mixture of thermoplastic polymer material having pellets selected to form an extruded component to simulate a natural wood component, there being groups of different coloured pellets and pellets of different sizes, larger one of said pellets having one or more colours to contrast with the colours of other of said pellets, ii) feeding said mixture of coloured thermoplastic polymer pellets in an extruder at one or multiple feed zones;
iii) melting and mixing said pellets along said extruder wherein larger pellets take longer time to melt to provide contrasting streaks of molten polymer throughout a molten extruded core and on outer surfaces of said core exiting from land of a die of said extruder. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification