Title:
METHOD FOR MANUFACTURING HIGH-DENSITY WOODY LAMINATE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/066085
Kind Code:
A1
Abstract:
The present invention enables production of a high-density strand board without using special equipment, by molding under a pressure approximately the same as that applied to produce a normal-density strand board. A pretreatment step P2 including a first treatment step P2a and a second treatment step P2b subsequent to the first treatment step P2a, is performed on a strand 5 that has not been press-molded. In the first treatment step P2a, at least one among beating treatment, high-frequency treatment, high-temperature/high-pressure treatment, high-water-pressure treatment, repeated degasifying/dehydrating treatment, and chemical treatment is performed. In the second treatment step P2b, roll-pressing treatment or flat-plate pressing treatment is performed. A strand board B of 750-950 kg/m3 is molded under a pressure of at most 4 N/mm2.
Inventors:
OSHIMA KATSUHITO (JP)
SUGIO YASUSHI (JP)
NAGAOKA KOJI (JP)
SAKAMOTO KAZUKI (JP)
SUGIO YASUSHI (JP)
NAGAOKA KOJI (JP)
SAKAMOTO KAZUKI (JP)
Application Number:
PCT/JP2018/036707
Publication Date:
April 04, 2019
Filing Date:
October 01, 2018
Export Citation:
Assignee:
DAIKEN CORP (JP)
International Classes:
B27N3/00; B27K5/00; B27N1/00; B30B9/00; B30B9/28
Foreign References:
| JP2000071216A | 2000-03-07 | |||
| JP2000117710A | 2000-04-25 | |||
| JPH07171808A | 1995-07-11 | |||
| JP2004202840A | 2004-07-22 | |||
| JP4307992B2 | 2009-08-05 |
Other References:
See also references of EP 3501768A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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