Title:
ARCHITECTURAL COMPOSITE PLATE AND MANUFACTURE THEREFOR
Document Type and Number:
Japanese Patent JP3930966
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce weight, and strengthen flexural strength by layering a cement layer or a gypsum layer in an impregnation layer-formed state on the obverse/reverse of an orientative strand board by preapplying dimension stabilizing treatment by heating steam treatment.
SOLUTION: A ligneous strand is molded into a plate shape on an orientative strand board Wa through a phenol resin, MDI, a urea resin and a melamine resin, a specific gravity is reduced, and higher flexural rigidity is imparted than the other fiber board and a particle board. However, even the orientative strand board Wa has inconvenience such as a using place is limited since a rate of dimensional change is large by absorption/release of moisture similarly to the particle board. Then, a material applied with dimension stabilizing treatment on the orientative strand board Wa by heating steam treatment, is used as a core material of an architectural composite plate A, and a cement layer or a gypsum layer G is layered on the obverse/reverse to thus obtain a fire resistant architectural composite material having strong flexural strength and high dimensional stability.
Inventors:
Jiro Nishio
Akira Nakamura
Akira Nakamura
Application Number:
JP16484798A
Publication Date:
June 13, 2007
Filing Date:
June 12, 1998
Export Citation:
Assignee:
Yongdai Sangyo Co., Ltd.
International Classes:
E04C2/04; B27K5/00; B27N3/04; B28B1/30; B32B13/10; B32B13/12; E04C2/16; (IPC1-7): E04C2/04; B32B13/12
Domestic Patent References:
| JP6371326U | ||||
| JP9164627A |
Attorney, Agent or Firm:
Yusuke Hiraki
Yasushi Hayakawa
Yasushi Hayakawa