Tear-resistant bond pattern
US6620490B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2000 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Dec 29, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/674
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The bonded composite in accordance with the invention has first and second thin-section sheet materials bonded together by bond elements defining a bond pattern. The bond elements can consist of stress receptor elements, stress transfer and dissipation elements, and stress termination elements. In general, the stress receptor elements, and the transfer and dissipation elements, receive stresses into the bond pattern, and distribute stresses internally, generally inwardly into the interior of the bond pattern. The termination elements function to accumulate and coordinate termination of stresses transferred from the receptor elements and the transfer and dissipation elements. In general, bond elements in the interior of the bond pattern are closer together than bond elements proximate the side edges of the bond pattern. Bonds corresponding to the bond elements can be formed via a wide variety of bond forming processes, including thermal energy and ultrasonic-frequency energy. The bond elements preferably occupy from about 10 percent to about 40 percent of the overall area of the bond pattern. Exemplary use of the bond pattern is illustrated in an absorbent article. The absorbent art…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.