Post-bonded grooved elastic materials
US9913764B2 · kind B2 · utility
13Cited by
99References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2013 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Feb 1, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24612
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An elastic nonwoven laminate that contains an elastic film laminated to one or more nonwoven facings is provided. The nonwoven facing contains a conventional polyolefin and can also contain a polyolefin-based plastomer. The laminate is activated by grooving to decouple the nonwoven facing from the elastic film. To reduce fiber-pull out that can result due to activation by grooving, the laminate can be post-bonded at room or elevated temperatures and a specific range of pressures to compact the fibers of the facing and minimize fiber pull-out/fuzziness while not sacrificing the softness, elasticity, and feel of the laminate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.