Patent ID: 8293158

Claim:
A method for producing a blend of wood particles and plastic particles in an extrusion line that includes a feed part ( 201 ), a side arm extruder ( 204 ), and at least one planetary roller part ( 202 ) that has a central spindle, multiple planetary spindles, and a surrounding housing, with the multiple planetary spindles rotating about the central spindle in the housing as a result of an internal toothing of the housing, said method comprising the steps of: feeding the wood particles into the feed part ( 201 ), a majority of the wood particles having a size of between 0.3 and 0.4 mm and the wood particles having a maximum size of 0.8 mm; feeding the plastic particles into the side arm extruder ( 204 ) and then, independently of the wood particles, liquefying the plastic particles into a plastic melt; advancing the wood particles out of the feed part ( 201 ) and into the planetary roller part ( 202 ); injecting the plastic melt into the planetary roller part ( 202 ) with the wood particles, such that the wood particles have a proportion of at least 60% by weight in the blend; blending and homogenizing the plastic melt with the wood particles in the planetary roller part ( 202 ); compacting the blend in the planetary roller part ( 202 ); and discharging the blend out of the extrusion line.