发明授权
- 专利标题: Sound absorbing material and method of production therefor
- 专利标题(中): 吸声材料及其生产方法
-
申请号: US725680申请日: 1996-10-02
-
公开(公告)号: US5820975A公开(公告)日: 1998-10-13
- 发明人: Katsutoshi Oda , Toshiyuki Suzuki , Masao Imanishi , Akira Kaneko , Kenji Ito , Yasutaka Nakamura
- 申请人: Katsutoshi Oda , Toshiyuki Suzuki , Masao Imanishi , Akira Kaneko , Kenji Ito , Yasutaka Nakamura
- 申请人地址: JPX
- 专利权人: Nippon Steel Chemical Co., Ltd.
- 当前专利权人: Nippon Steel Chemical Co., Ltd.
- 当前专利权人地址: JPX
- 优先权: JPX7-257889 19951004
- 主分类号: E04B1/86
- IPC分类号: E04B1/86 ; B32B5/18 ; B32B5/22 ; E04B1/74 ; E04B1/82 ; E04B1/84 ; G10K11/16 ; G10K11/162 ; B32B7/02
摘要:
A sound absorbing material which comprises a base layer 1 having a porosity of 5 to 50% by volume and a decorative layer 3 having a porosity of 5 to 50% by volume integrally, and which is obtained by sprinkling inorganic particles 4 containing colored particles in an amount of at least 1% by volume which are coated with a weather-resistant transparent resin so as to form a first particle layer which is to form the decorative layer 3 in the sound absorbing material, sprinkling uncolored inorganic lightweight particles 2 which are coated with a thermosetting resin on the first particle layer so as to form a second particle layer which is to form the base layer 1 in the sound absorbing material, and carrying out thermal compression integral molding of the first particle layer and the second particle layer simultaneously, is lightweight and inexpensive, and is provided with an attractive external stone-grain-like appearance, without impairing the sound absorbing ability of the material. In addition, by placing a reinforcing layer material on the top surface, bottom surface, or both surfaces of the second particle layer, and carrying out thermal compression integral molding of the first particle layer, the second particle layer, and the reinforcing layer material(s) simultaneously, it is possible to provide a sound absorbing material which is provided with rigidity to enable the material to be free-standing, without impairing the above advantages and the sound absorbing ability of the material.
公开/授权文献
- US5199722A Seal assembly for stirling engine 公开/授权日:1993-04-06
信息查询
IPC分类: