Title:
PROCESS FOR PRODUCING WOODEN SYNTHETIC CONSTRUCTION MATERIAL
Document Type and Number:
WIPO Patent Application WO/2012/137833
Kind Code:
A1
Abstract:
Provided is a process for producing a wooden synthetic construction material with extremely high utility, which enables effective use of plywood sawdust waste material and can obtain a synthetic construction material that presents a wood-like appearance close to the texture of natural wood. Plywood sawdust, which is produced by adding an adhesive to wood fibres or wood fragments and pressing, and a thermoplastic synthetic resin serve as principal starting materials. A material in which a subsidiary starting material is added to these principal starting materials is melted by heating under temperature conditions of 160 - 200°C and is then pelleted to produce starting material pellets. These starting material pellets are loaded into an extrusion moulding machine or an injection moulding machine without positively removing, from the starting material pellets, moisture of the plywood sawdust or the adhesive constituents contained therein, and the starting material pellets are melted by heating under temperature conditions of 150 - 200°C and are extruded from a die or injected into the die.
Inventors:
KAMITE MASAYUKI (JP)
Application Number:
PCT/JP2012/059227
Publication Date:
October 11, 2012
Filing Date:
April 04, 2012
Export Citation:
Assignee:
HANDY TECHNO CO LTD (JP)
KAMITE MASAYUKI (JP)
KAMITE MASAYUKI (JP)
International Classes:
B27N3/00
Domestic Patent References:
| WO1994020280A1 | 1994-09-15 |
Foreign References:
| JPH0385797U | 1991-08-29 | |||
| JP2002225011A | 2002-08-14 | |||
| JP2006150786A | 2006-06-15 | |||
| JP2006103014A | 2006-04-20 |
Attorney, Agent or Firm:
TAKEDA Akihiro et al. (JP)
Akihiro Takeda (JP)
Akihiro Takeda (JP)
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