发明名称 |
An absorbent article containing a breathable material layer |
摘要 |
An absorbent article includes a breathable backsheet material layer. At least a part of the layer includes a polymeric material exhibiting a discontinuous change in free volume in response to any of the following conditions or variables: liquid contact, the presence of certain ions, temperature and/or pH. One example of such polymeric materials is side chain liquid crystalline polymers which are able to undergo a phase transition between an isotropic phase and a nematic phase. The discontinuous change in free volume involves an abrupt change of the permeability of the breathable material layer. |
申请公布号 |
AU2007328527(B2) |
申请公布日期 |
2013.08.15 |
申请号 |
AU20070328527 |
申请日期 |
2007.12.07 |
申请人 |
SCA HYGIENE PRODUCTS AB |
发明人 |
FERNKVIST, MARIA;HANSSON, CHARLOTTA;GUSTAFSON, INGRID |
分类号 |
A61F13/514;A61F13/15;A61L15/42 |
主分类号 |
A61F13/514 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|