Wash durable fabric laminates
US5660918A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1996 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Apr 17, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24818
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A delamination problem in fabric laminates made of a fabric laminated to a nonporous, hydrophilic organic polymer film, such as a breathable polyurethane film, was found to be caused by the hydrophilic nature of the polymer. A particular adhesive pattern was devised to overcome the delamination problem. More specifically, a wash-durable fabric laminate of a continuous, non-porous hydrophilic polymer, e.g., a breathable polyurethane, layer and a fabric layer were bonded together by a discontinuous, but interconnected pattern of an adhesive layer. The fabric laminate is water-vapor-permeable, air-impermeable and liquid water impermeable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.