Pattern embossed multilayer microporous films
US6719742B1 · kind B1 · utility
155Cited by
31References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1999 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Dec 21, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2555/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Pattern embossed low gauge films are disclosed having multiple microporous film layers with distinct coloration, such as a dark colored layer and a light colored layer, wherein the color of the underlying film causes a visible color contrast only at the embossed regions and yet does not discolor the outer most layer. Also disclosed are film laminates and personal care articles incorporating such multilayer films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.