CD extensible nonwoven composite
US11851792B2 · kind B2 · utility
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91References
20Claims
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Key dates
| Filing date | Mar 14, 2023 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Mar 14, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2555/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A nonwoven composite that has a dimension in a machine direction and a cross-machine direction is provided. The composite comprises a nonwoven facing positioned adjacent to an elastic film. The nonwoven facing contains a spunbond web that is formed by necking a base spunbond web. The base spunbond web includes a plurality of fibers generally oriented in the machine direction and exhibiting a machine direction tensile strength and cross-machine direction tensile strength. The ratio of the machine direction tensile strength to the cross-machine direction tensile strength is about 4:1 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.