Latent elastic olefin film laminates and methods of making absorbent articles incorporating the same
US12037484B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Oct 8, 2021 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Oct 1, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A latent elastic film laminate is provided including a film predominantly comprising olefin elastomers. The film is stretched and maintained in a stretched state in order to impart the desired level of latent elasticity such that the conditioned film laminate will shrink upon activation, such as by heating. The latent elastic film laminate can be advantageously used in the manufacture of various elasticated articles, including absorbent personal care articles, by activating the latent elasticity after attachment to the article and thereby shirring and elasticizing components to which the film laminate is attached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.