Biaxially elastic nonwoven laminates having inelastic zones
US9168720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2009 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Mar 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/668
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a method of imparting constraint in a biaxially elastic nonwoven laminate, and the constrained laminate itself, the method comprising providing a biaxially elastic nonwoven laminate comprising at least one meltspun elastic fabric and at least one extensible fabric or film; and fusing at least, or preferably, only a portion(s) of the at least one meltspun elastic fabric to at least one of the extensible fabrics to create at least one inelastic zone. Desirably, the at least one meltspun elastic fabric and at least one extensible fabric or film is biaxially elastic, and referred to as being “nonwoven” due to the at least one layer of meltspun elastomer. The meltspun elastic fabric may comprise a polyolefin-based elastomer or blend of an elastomer with a thermoplastic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.