Blend of plastics with wood particles

A method for producing a blend of a first material and a second material, said first material comprising plastic and said second material comprising at least one of wood and other plant material, in an extrusion arrangement comprising a feed part, a melting device, a pump, and a planetary roller part that comprises a central spindle, planetary spindles, and a housing, which planetary spindles are configured to rotate around said central spindle in said housing via an internal toothing of said housing, said method comprising the steps of:

• feeding particles of said second material into said feed part, which particles of said second material have a maximum diameter of 1 mm;
• feeding particles of said first material into said melting device and then liquefying said particles of said first material into a plastic melt;
• feeding said plastic melt out of said melting device and into said pump;
• advancing said particles of said second material out of said feed part and into said planetary roller part;
• pumping said plastic melt into said planetary roller part;
• blending and homogenizing said plastic melt with said particles of said second material in said planetary roller part;
• compacting said blend in said planetary roller part;
• and
• discharging said blend out of the extrusion arrangement, which blend comprises at least 60% by weight of said second material.