Title:
PRODUCTION OF SOUND ABSORPTION MATERIAL AND SOUND ABSORPTION MATERIAL
Document Type and Number:
Japanese Patent JPH10251077
Kind Code:
A
Abstract:
To provide a producing method of a sound absorption material and the sound absorption material having high sound absorption property and high strength.
A foamable inorganic composition (A) slurry consisting of an Al2O3 based inorganic powder, an alkali metal silicate, a foaming agent, water and a polysilloxane-poly-oxyalkylene copolymer and a foamable inorganic composition (B) containing an anionic surfactant except the polysiloxane-poly- oxyalkylene copolymer are laminated and casted. The laminated and casted foamable inorganic composition (A) and (B) are foamed and hardened. The skin layer of the inorganic foamed hardened material of the foamed and hardened foamable inorganic composition (A) is cut off.
Inventors:
IKEMOTO YOICHI
YOKOYAMA YUZO
KUSANO KUNIO
YOKOYAMA YUZO
KUSANO KUNIO
Application Number:
JP5903597A
Publication Date:
September 22, 1998
Filing Date:
March 13, 1997
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
E04B1/86; B28B1/16; B32B5/32; B32B13/04; C04B28/26; C04B38/02; C04B41/53; (IPC1-7): C04B38/02; B28B1/16; B32B5/32; B32B13/04; C04B28/26; E04B1/86
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