Title:
PRODUCTION OF SOUND ABSORPTION MATERIAL AND SOUND ABSORPTION MATERIAL
Document Type and Number:
Japanese Patent JPH10251078
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.
This method for producing the sound absorption material comprises foaming and hardening a foamable inorganic composition consisting of Al2O3-SiO2 based inorganic powder, an alkali metal silicate, a foaming agent, water and a polysilloxane-polyoxyalkylene copolymer on one surface of a continuous pore type foamed body (A) composed of a curable inorganic composition and after that, laminating a continuous pore type foamed body (B) treated with a high pressure water of 30-150kg/cm2 nozzle pressure and having 2-40mm thickness thereon.
Inventors:
IKEMOTO YOICHI
YOKOYAMA YUZO
KUSANO KUNIO
YOKOYAMA YUZO
KUSANO KUNIO
Application Number:
JP5903497A
Publication Date:
September 22, 1998
Filing Date:
March 13, 1997
Export Citation:
Assignee:
SEKISUI CHEMICAL CO LTD
International Classes:
B32B5/32; C04B28/26; C04B32/00; C04B38/00; C04B38/02; C04B103/42; C04B111/40; C04B111/52; (IPC1-7): C04B38/02; B32B5/32; C04B28/26; C04B32/00; C04B38/00
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