Diaper closure utilizing pressure-sensitive adhesive tape having textured foil backing
US4237889A · kind A · utility
65Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1978 |
| Grant date | Dec 9, 1980 |
| Priority date | — |
| Expiry date | Sep 13, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/28
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Pressure-sensitive adhesive tape, having an untensilized crystalline isotactic polypropylene or linear high density polyethylene film backing with a pattern of alternating ridges and valleys on one side, is especially adapted for use as a tab closure for diapers. The ridges are so disposed that, when a tab is cut from the tape, at least some of the ridges extend at an angle of 60.degree. or less to the lateral edge of the tab, thereby minimizing any tendency toward inadvertent tearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.