Title:
防火性木質複合材
Document Type and Number:
Japanese Patent JP6893825
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fireproof woody composite material that is superior in fireproof ability and designability, and that can be produced with low costs.SOLUTION: In the fireproof woody composite material of this invention, a surface of a woody base material 2 is provided with a fireproof layer 3 comprising a first metal foil 31, and a second metal foil 32 that is disposed on the surface side of the first metal foil 31. A surface of the fireproof layer 3 is provided with a flammable surface sheet 4, and the thickness of the first metal foil 31 is thicker than that of the second metal foil 32. Preferably, holes are formed in the second metal foil while holes are not formed in the first metal foil, when heated from a surface on the flammable surface sheet 4 side with radiation intensity of 50 kW/mfor 10 or 20 minutes.SELECTED DRAWING: Figure 1
Inventors:
Hiroyuki Ishigaki
Kenichi Kadota
Kenichi Kadota
Application Number:
JP2017090790A
Publication Date:
June 23, 2021
Filing Date:
April 28, 2017
Export Citation:
Assignee:
Sumitomo Forestry Co., Ltd.
International Classes:
B27M3/00; B27D1/04; B27D5/00; E04B1/94; E04C2/26
Domestic Patent References:
| JP2018134790A | ||||
| JP9216308A |
Foreign References:
| EP2522502A1 |
Attorney, Agent or Firm:
Showa International Patent Office