Title:
中空ボード
Document Type and Number:
Japanese Patent JP6721353
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hollow board which has hygroscopicity equivalent to a wooden plate material and is made from a synthetic resin.SOLUTION: There is provided a hollow board 1 which has a space formed by joining surface layer sheets 2 and 3 to a core sheet 4 therein, where a part or all of the surface layer sheet 2 contains 5-35 wt.% of inorganic particles and has an open cell foam structure, preferably, the outermost layer of the surface layer sheet 2 has the open cell foam structure, and the inorganic particles are calcium carbonate.SELECTED DRAWING: Figure 1
Inventors:
Ryota Miyazaki
Kozo Azuchi
Shinichi Sakamoto
Kozo Azuchi
Shinichi Sakamoto
Application Number:
JP2016017810A
Publication Date:
July 15, 2020
Filing Date:
February 02, 2016
Export Citation:
Assignee:
Kawakami Sangyo Co., Ltd.
International Classes:
B32B3/26; B32B5/18; B60R13/01; E04B1/64
Domestic Patent References:
| JP2013173247A | ||||
| JP9085081A | ||||
| JP2010059223A | ||||
| JP8025538A | ||||
| JP10017699A | ||||
| JP2002059521A | ||||
| JP2004210392A | ||||
| JP2000177065A | ||||
| JP6073226A |
Foreign References:
| WO2009037765A1 | ||||
| US20100307867 |
Attorney, Agent or Firm:
Kazuhiro Akazawa
Takeshi Miyazawa
Takeshi Miyazawa