发明名称 |
POROUS FACING MATERIAL, ACOUSTICALLY ATTENUATING COMPOSITE, AND METHODS OF MAKING AND USING THE SAME |
摘要 |
A porous facing material comprises a nonwoven web containing interfused thermoplastic elastomeric fibers. The interfused thermoplastic elastomeric fibers comprise a blend of at least two thermoplastic elastomers of a different tensile modulus. The nonwoven web has a basis weight in a range of from 100 to 1500 grams per square meter and a thickness of from 0.2 to 3.5 millimeters, and is abrasion resistant. Acoustically attenuating composites, which have an airflow resistance of from 100 to 10000 mks rayls, and which include a porous facing material secured to a porous backing, are also disclosed. Methods of making and using the foregoing articles are also disclosed. |
申请公布号 |
EP2176458(A1) |
申请公布日期 |
2010.04.21 |
申请号 |
EP20080780979 |
申请日期 |
2008.06.25 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
VAN DAM, GERALD, L. |
分类号 |
D04H1/42;B32B5/18;B32B5/24;B60R13/02;B60R13/08;D04H1/56;D04H3/02;D04H3/16;D04H13/00;G10K11/168 |
主分类号 |
D04H1/42 |
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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