Nonwoven filled film laminate with barrier properties
US6764566B1 · kind B1 · utility
48Cited by
41References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2001 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Jul 11, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B5/28
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention is directed to a method of manufacturing a single-use, disposable absorbent laminate containing one or more layers of hydrophilic meltspun material bonded to a breathable film. The meltspun fabric layer may include at least one spunbonded fabric, meltblown fabric or other nonwoven fabric that is made hydrophilic prior to bonding to the film. The filaments or microfibers of the spunbonded or meltblown fabrics may contain a hydrophilic additive in or on the filaments or microfibers. The film of the surgical drape remains breathable while enabling the laminate to resist penetration by liquids and viruses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.