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Patent Searching and Data


Title:
SEMI-INCOMBUSTIBLE PANEL BOARD AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2022/130727
Kind Code:
A1
Abstract:
The present invention makes it possible to improve the reliability of fire resistance with regard to wood materials containing a fireproofing treatment agent such as a semi-incombustible wood material while also improving both the ease of procuring raw materials and mass productivity. This panel board 11 comprises front/back veneer 21 constituting the front and back thereof and a core veneer layer 31 layered between the front/back veneer 21. The veneer fiber direction of the front/back veneer 21 is substantially parallel to the lengthwise direction of the panel board. The core veneer layer 31 is a layer obtained by stacking a plurality of sheets of core veneer 32 in the thickness direction. The veneer fiber directions of all of the sheets of the core veneer 32 are substantially orthogonal to the lengthwise direction of the panel board 11. The front/back veneer 21 has a thickness of 1.5-4.0 mm, and the thickness of the core veneer layer 31 is equal to or greater than the total thickness of the front/back veneer 21. Lathe checks and cracks are exposed on the board grain surfaces of all the front/back veneer 21, and an aqueous solution of a fireproofing agent is infiltrated therefrom.

Inventors:
YOKOO KUNIHARU (JP)
Application Number:
PCT/JP2021/035316
Publication Date:
June 23, 2022
Filing Date:
September 27, 2021
Export Citation:
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Assignee:
UNI WOOD CORP CO LTD (JP)
International Classes:
B27D1/04; B27K3/02
Foreign References:
JPH0612006U1994-02-15
JPH05138612A1993-06-08
JP2020089978A2020-06-11
Attorney, Agent or Firm:
SAMEJIMA Takenobu (JP)
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