发明授权
US06461716B1 Apertured webs having permanent hydrophilicity and absorbent articles using such webs
失效
具有永久亲水性的开口网和使用这种网的吸收制品
- 专利标题: Apertured webs having permanent hydrophilicity and absorbent articles using such webs
- 专利标题(中): 具有永久亲水性的开口网和使用这种网的吸收制品
-
申请号: US09344161申请日: 1999-06-24
-
公开(公告)号: US06461716B1公开(公告)日: 2002-10-08
- 发明人: Yann-Per Lee , Hugh Joseph O'Donnell , Andrew Julian Wnuk , Todd Leon Mansfield , Gary Dean LaVon , Fernando Benvegnu
- 申请人: Yann-Per Lee , Hugh Joseph O'Donnell , Andrew Julian Wnuk , Todd Leon Mansfield , Gary Dean LaVon , Fernando Benvegnu
- 主分类号: B32B324
- IPC分类号: B32B324
摘要:
The present invention relates to an apertured web formed from a polymeric film having permanent hydrophilicity which is suitable for use as a topsheet in an absorbent article. One embodiment of the present invention is a multi-layer polymeric film having a first layer, a second layer, and at least one intermediate layer between the first and second layers, where one of the first or second layers is a block copolymer of a polyether and another polymer and the other layer is a hydrophobic layer as defined herein. Methods of producing such webs are also disclosed. The present invention also pertains to absorbent articles which preferably include a topsheet in accordance with the present invention, a backsheet secured to the topsheet, and an absorbent core positioned between the topsheet and the backsheet.
信息查询