公开(公告)号：US06623837B2

公开(公告)日：2003-09-23

申请号：US09749141

申请日：2000-12-27

申请人： Michael Tod Morman ,  Lon M. Edelman ,  Reginald Smith

发明人： Michael Tod Morman ,  Lon M. Edelman ,  Reginald Smith

IPC分类号： B32B330

CPC分类号： B32B27/12 ,  A61F13/51464 ,  A61F2013/51429 ,  B32B3/28 ,  B32B5/022 ,  B32B5/04 ,  B32B7/12 ,  B32B27/20 ,  B32B27/306 ,  B32B27/327 ,  B32B2305/026 ,  B32B2305/20 ,  B32B2307/724 ,  B32B2323/00 ,  B32B2329/00 ,  B32B2555/02 ,  Y10T428/24355 ,  Y10T428/24446 ,  Y10T428/24479 ,  Y10T428/24686 ,  Y10T428/24826 ,  Y10T442/3008 ,  Y10T442/601

摘要： A biaxially extendible, breathable laminate having liquid barrier properties and low retractive force. The laminate includes a nonwoven web neck-stretched in a first direction to impart extendibility of the web in a second direction mutually perpendicular with the first direction, and a film that is extendible in the second direction. The film can be a breathable, microporous film, and can either be an inelastic film stretched to form rugosities in the second direction, or can be made of an extendible polymer that is extendible in the second direction. Using an appropriate elastomeric lamination and/or creping adhesive, the laminate is creped to produce extendibility in the first direction with some retractive force. The biaxial extendible laminate is particularly useful as an outer cover for diapers and other personal care products.