Breathable laminate and method of making same
US9029277B2 · kind B2 · utility
5Cited by
83References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2011 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Jul 15, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/679
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A breathable laminate has a liquid-resistant backing film layer having varied vapor permeability that includes breathable thinned localized regions and thicker non-breathable regions, wherein the film layer is co-extensively directly joined with a liquid- and vapor-permeable nonwoven fabric. The breathable laminate can have unidirectional air permeability. The present invention also relates to disposable apparel and absorbent products which incorporate the breathable laminate, and methods of making the breathable laminate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.