Abstract: The present invention relates to a wood polymer/plastic composite that includes a rubber-based material in addition to wood powder used as a principal ingredient to improve on the physical characteristics such as compression strength, impact strength, or the like and have better dimensional stability, thereby providing solutions to the direct nailing process. The present invention to achieve the object includes: pulverizing wood logs or wood flake chips to prepare a wood powder as a principal ingredient; adding a rubber-based material and additives to the wood powder and mixing together to prepare a compound; and preparing a wood polymer/plastic composite from the compound through any one method of extrusion, injection or press molding.

Abstract: Disclosed is an apparatus for manufacturing synthetic wood having spripes, and the method thereof and the syn-thetic wood of the same. The apparatus includes a main extruder comprising a hopper through which a raw material is injected, a heating cylinder which is disposed at a lower side of the hopper so as to melt the raw material, and an extrusion screw which ex-trudes the melted raw material in the heating cylinder; an uneven wood grain forming part which injects the melted different colors raw material in a transverse direction (or diagonal direction) so as to form an uneven stripe pattern in the transverse direction (or diagonal direction) as well as a length direction of synthetic wood and at an outer surface and an inner portion thereof; and a mold which forms the extruded material introduced through the uneven wood grain forming part into an extruded product of synthetic wood.