| 发明名称 |
NONWOVEN FABRIC WEB |
| 摘要 |
A nonwoven fabric web having an excellent sound absorption coefficient in a frequency range from 800 Hz to 1000 Hz when used as a sound absorbing member for a vehicle exterior. The nonwoven fabric web including a nonwoven fabric having meltblown fibers and binder fibers arranged so as to be confounded with the meltblown fibers and fused with the meltblown fibers at some of the confounding points at the very least, the weight per unit area of the nonwoven fabric being from 400 g/m2 to 1500 g/m2, and the flexural rigidity of the nonwoven fabric being from 2.0 N/50 mm to 20.0 N/50 mm. |
| 申请公布号 |
US2017044699(A1) |
申请公布日期 |
2017.02.16 |
| 申请号 |
US201515302513 |
申请日期 |
2015.04.28 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
Kurashima Daisuke;Imai Koji;Yoda Kenichi |
| 分类号 |
D04H13/00;D04H1/542;D04H1/56;D04H5/06;B32B5/26;B60R13/08;B32B27/08;B32B27/36;B32B27/32;B32B25/08;B32B25/14;G10K11/168;D04H1/4382;B32B5/02 |
主分类号 |
D04H13/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A nonwoven fabric web provided with a nonwoven fabric having:
meltblown fibers; and binder fibers arranged so as to be confounded with the meltblown fibers and fused with the meltblown fibers at some of the confounding points at the very least; the weight per unit area of the nonwoven fabric being from 400 g/m2 to 1500 g/m2, and the flexural rigidity of the nonwoven fabric being from 2.0 N/50 mm to 20.0 N/50 mm, as measured according to the three-point flexural test (method A) of JIS K7074 (1998). |
| 地址 |
St. Paul MN US |
