发明名称 |
Acoustical insulation material containing fine thermoplastic fibers |
摘要 |
The present invention relates an acoustical insulation material for sound attenuation containing a nonwoven web. Surprisingly, it has been discovered that an acoustical insulation material made from a nonwoven web of thermoplastic fibers having an average fiber diameter of less than about 7 microns, wherein the acoustical insulation has a thickness less than about 3 mm and a density of greater than about 50 kg/m<SUP>3 </SUP>is effective as a sound insulation material. The acoustical insulation is very effective as an acoustical insulation material, despite the low thickness and high density of the acoustical insulation. A method of attenuating sound waves passing from a sound source area to a second area using the acoustical insulation material is also disclosed.
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申请公布号 |
US6893711(B2) |
申请公布日期 |
2005.05.17 |
申请号 |
US20020212410 |
申请日期 |
2002.08.05 |
申请人 |
KIMBERLY-CLARK WORLDWIDE, INC. |
发明人 |
WILLIAMSON BRUCE SCOTT;FRAZIER NINA |
分类号 |
D04H1/56;E04B1/84;G10K11/162;(IPC1-7):B32B25/10 |
主分类号 |
D04H1/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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