AN ABSORBENT ARTICLE CONTAINING A BREATHABLE MATERIAL LAYER

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专利权人:

SCA HYGIENE PRODUCTS AB

发明人:

FERNKVIST, MARIA,GUSTAFSON, INGRID,HANSSON, CHARLOTTA

申请号：

MYPI 20092062

公开号：

MY148363A

申请日:

2007.12.07

申请国别(地区):

MY

年份:

2013

代理人:

摘要：

AN ABSORBENT ARTICLE COMPRISING A BREATHABLE BACKSHEET MATERIAL LAYER WHEREIN AT LEAST PARTS OF SAID LAYER COMPRISES 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 WILL INVOLVE AN ABRUPT CHANGE OF THE PERMEABILITY OF THE BREATHABLE MATERIAL LAYER.

来源网站：

中国工程科技知识中心

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http://www.ckcest.cn/home/