Polyurethane pad covering for gel filled articles
US5593769A · kind A · utility
20Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1995 |
| Grant date | Jan 14, 1997 |
| Priority date | — |
| Expiry date | Jun 14, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/68
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A barrier fabric laminate for use as a cover for a gel filled article is provided. The barrier fabric laminate comprises a fluid impermeable film and a polyurethane nonwoven web which has a friction value of less than 200 g and a fabric hand of less than 200 g. The polyurethane web is formed from fibers of less than about 50 .mu.m diameter on average and is preferably formed with a fluorochemical melt additive by sequentially melt blowing the polyurethane web on a heated collecting drum and laminating in the nip formed by a heated nip roller and the collecting drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.