发明授权
US5820975A Sound absorbing material and method of production therefor 失效
吸声材料及其生产方法

Sound absorbing material and method of production therefor
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
信息查询
IPC分类:
E 固定建筑物
E04 建筑物
E04B 一般建筑物构造;墙,例如,间壁墙;屋顶;楼板;顶棚;建筑物的隔绝或其他防护(墙、楼板、或顶棚上的开口的边沿构造入E06B1/00)
E04B1/00 一般构造;不限于墙,例如,间壁墙,或楼板或顶棚或屋顶中任何一种结构(脚手架,模板入E04G;特殊用途的建筑物用的专用结构,建筑物的一般布置,例如,模数协调入E04H;建筑物的特殊构件见这些构件的有关组)
E04B1/62 .隔绝或其他防护;用于此目的构件或使用的特殊材料(化学成分入C01至C11;用于提供隔绝或密封的器具入E04F21/00;能经受或提供保护不希望出现的外界影响的建筑物入E04H9/00;在墙内或间壁墙内的密封管入F16L5/02;对危害性辐射的屏蔽入G21F;建筑物特殊部分的构造参见有关这些部分的各组)
E04B1/74 ..对热、声或噪音的隔绝、吸收或反射(用于影响或引导声音的房间的形式或屋内布置入E04B1/99);提供良好温度或声响条件的其他建筑方法,例如,在墙内蓄热(防火入E04B1/94;主要用于结构用途的构件入E04C1/00至E04C3/00;主要用于表面覆盖的入E04F13/00;作为地板覆盖物的底层的入E04F15/18;墙上开口或类似开口的封闭入E06B)
E04B1/82 ...专门用于隔音的(管道或通道中的噪音衰减入E04F17/00;一般的噪音衰减入G10K11/16)
E04B1/84 ....吸音构件
E04B1/86 .....板式的
0/0