Title:
WOODY CEMENT BOARD AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2002068815
Kind Code:
A
Abstract:
To provide a high-strength trilaminar woody cement board.
This trilaminar woody cement board is manufactured by a dry or semidry process by adding a larger amount of an accelerator to a raw material mixture for the front and rear layers than the amount of the accelerator to be added to the raw material mixture for the core layer and hardening uniformly the front and rear layers and the core layer at a compressively heating/hardening step.
Inventors:
SHIMIZU TAKEO
Application Number:
JP2000262867A
Publication Date:
March 08, 2002
Filing Date:
August 31, 2000
Export Citation:
Assignee:
NICHIHA KK
International Classes:
E04C2/26; B28B3/02; B32B13/02; C04B28/02; C04B32/02; C04B40/02; (IPC1-7): C04B28/02; B28B3/02; B32B13/02; C04B32/02; C04B40/02; E04C2/26
Attorney, Agent or Firm:
Tadao Usami
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