Title:
SANDWICH-STRUCTURE PLYWOOD
Document Type and Number:
Japanese Patent JP2003313988
Kind Code:
A
Abstract:
To provide a sandwich-structure plywood which is realized and a material (wood) is omitted and which can be recycled.
In a sandwich structure in which a polyurethane foam 2 is injected into the inside and the plywood 3 is used on the outside, opposed edges have tongues 5 for a joining.
Inventors:
SOMA TETSUHIKO
Application Number:
JP2002156465A
Publication Date:
November 06, 2003
Filing Date:
April 21, 2002
Export Citation:
Assignee:
ENIKKUSU SOKEN KK
International Classes:
B27M3/00; E04B1/86; E04C2/36; (IPC1-7): E04C2/36; B27M3/00; E04B1/86
Previous Patent: HANGER FOR CEILING
Next Patent: WEATHER-RESISTANT WATERPROOF SHEET AND WATERPROOFING METHOD
Next Patent: WEATHER-RESISTANT WATERPROOF SHEET AND WATERPROOFING METHOD