| 发明名称 |
METHOD OF MAKING BREATHABLE, ELASTIC FILM LAMINATES AND ARTICLES DERIVED THEREFROM |
| 摘要 |
A method of making a breathable, elastic film laminate comprising the steps of stretching an elastic film in a first direction, spot welding at least one nonwoven web to the film while it is stretched, and stretching the film laminate in a second direction to create apertures in the film. Articles derived from the method are also described. |
| 申请公布号 |
US2017087029(A1) |
申请公布日期 |
2017.03.30 |
| 申请号 |
US201515308543 |
申请日期 |
2015.04.27 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
Nelson Todd L.;Andrews Robert E.;Sikorski, Jr. William H. |
| 分类号 |
A61F13/15;B32B27/32;B32B5/02;B32B27/12;A61F13/49;B32B3/26 |
主分类号 |
A61F13/15 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of making a breathable, elastic film laminate comprising:
providing an elastic film having a first surface and a second surface opposite the first surface; stretching the film in a first direction; spot welding a nonwoven web to the first surface of the film while it is stretched in the first direction to produce a film laminate with multiple weld sites; and stretching the film laminate in a second direction to create apertures in the film. |
| 地址 |
St. Paul MN US |
