Title:
SOUND-PROOF MATERIAL AND PROCESS FOR PRODUCTION THEREOF, SOUND-PROOF MOLDING, AND SOUND INSULATION METHOD
Document Type and Number:
WIPO Patent Application WO/2012/102345
Kind Code:
A1
Abstract:
The present invention relates to a sound-proof material comprising a first sound-absorbing material which is arranged so as to face a sound source, a first flexible sound insulation layer which is laminated on a surface of the first sound-absorbing material which is opposed to the sound source and has a gas permeability of 10 cc/cm2·sec or less as measured in accordance with JIS L1018, a second sound-absorbing material which is laminated on the first flexible sound insulation layer, and a second flexible sound insulation layer which is laminated on the second sound-absorbing material and has a gas permeability of 10 cc/cm2·sec or less as measured in accordance with JIS L1018 and a Young's modulus that is five-times or more higher than that of the first flexible sound insulation layer as measured in accordance with JIS K7127, wherein at least the second flexible sound insulation layer and the second sound-absorbing material are partially or entirely bonded to each other.
Inventors:
MORI Tadashi (())
森 正 (())
NIWA Takahiro (())
丹羽 隆弘 (())
YOSHIHARA Masaki (())
森 正 (())
NIWA Takahiro (())
丹羽 隆弘 (())
YOSHIHARA Masaki (())
Application Number:
JP2012/051691
Publication Date:
August 02, 2012
Filing Date:
January 26, 2012
Export Citation:
Assignee:
NICHIAS Corporation (1-26, Shibadaimon 1-chome Minato-k, Tokyo 55, 〒1058555, JP)
ニチアス株式会社 (〒55 東京都港区芝大門１丁目１番２６号 Tokyo, 〒1058555, JP)
MORI Tadashi (())
森 正 (())
NIWA Takahiro (())
丹羽 隆弘 (())
ニチアス株式会社 (〒55 東京都港区芝大門１丁目１番２６号 Tokyo, 〒1058555, JP)
MORI Tadashi (())
森 正 (())
NIWA Takahiro (())
丹羽 隆弘 (())
International Classes:
G10K11/16; G10K11/162
Attorney, Agent or Firm:
OGURI Shohei et al. (Eikoh Patent Firm, Toranomon East Bldg. 10F 7-13, Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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Claims: