Breathable, liquid-impermeable, apertured film/nonwoven laminate and process for making same
US6420625B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1997 |
| Grant date | Jul 16, 2002 |
| Priority date | — |
| Expiry date | Sep 12, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24331
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A breathable, liquid-impermeable, apertured film/nonwoven laminate is provided for use as a backsheet on various absorbent articles such as diapers, sanitary napkins, incontinent garments, and the like. The laminate is formed from a nonporous, breathable polymeric film layer, an apertured film layer, and a nonwoven web layer. The layers may be attached in an arrangement where the breathable polymeric film layer is sandwiched between the nonwoven web layer and apertured film layer, or where the apertured film layer is sandwiched between the nonwoven web layer and the breathable film layer. A process for making the laminate is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.