Preparation of elastic composite structures useful for components of disposable hygiene products and articles of apparel
US9084836B2 · kind B2 · utility
6Cited by
10References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 5, 2009 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Jul 19, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L15/26
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed herein are articles and processes for making elastic composite structures which can be used as or converted into a component of disposable hygiene products or articles of apparel. At least one relatively inelastic substrate, for example a nonwoven substrate, is adhesively bonded with a hot melt adhesive to a certain selected type of elongated polyurethane material in the form of a film or one or more fibers or filaments. The elongated polyurethane material is then allowed to relax which provides an elastic composite structure which is gathered or puckered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.