Title:
SOUND ABSORBING MATERIAL
Document Type and Number:
Japanese Patent JP2963264
Kind Code:
B2
Abstract:
PURPOSE: To improve the sound absorbing effect of a sound absorbing material wherein plate-form sound absorbing materials are laminated together.
CONSTITUTION: Two or more plate-form sound absorbing materials formed of a porous material are arranged approximately in parallel. An acryl adhesive layer is formed throughout the whole surface of the surfaces, positioned facing each other, of the adjoining plate-form sound absorbing materials through coating. The adjoining plate-form sound absorbing materials are laminated together with the acryl adhesive layer therebetween. The thickness of the acryl adhesive layer is set to 50-70μm.
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Inventors:
SUYAMA TETSUSHI
TANAKA HIDEO
KINOSHITA RYOICHI
TANAKA HIDEO
KINOSHITA RYOICHI
Application Number:
JP383492A
Publication Date:
October 18, 1999
Filing Date:
January 13, 1992
Export Citation:
Assignee:
HAYAKAWA GOMU KK
International Classes:
E04B1/86; G10K11/16; (IPC1-7): E04B1/86; G10K11/16
Attorney, Agent or Firm:
Akihide Sugimura (5 outside)
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