Elastic sheet-like composite
US5681302A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1994 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Jun 14, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/15593
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An elastic sheet-like composite comprising a multiplicity of elongate strands of resiliently elastic material, and one or more sheets of material bonded along its length or at sheet bonding locations to the elastic strands, some of which sheets have arcuate portions projecting from the elastic strands between those sheet bonding locations. The elastic sheet-like composite may be incorporated in disposable garments such as diapers or training pants. Also disclosed is a novel method and novel equipment for making the elastic sheet-like composite including in different combinations, sheet corrugating members, equipment for compacting the sheet along its length and an extruder that extrudes the strands onto the sheets and affords versatility in selecting characteristics of the elastic sheet-like composite to be produced without major modifications of the equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.