Barrier fabric composite and its method of preparation
US5902753A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1997 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Jun 11, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/259
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A barrier fabric composite is provided which comprises: PA1 i) a textile fabric comprising a front surface, a back surface, interstices within said fabric, and a determinable interstitial volume; PA1 ii) a liquid barrier enhancing thermoplastic within said interstices and on said back surface, filling at least 50% of said interstitial volume; and PA1 iii) a liquid barrier enhancing plastic coating, on the back surface of said thermoplastic, having a higher melting point or glass transition temperature (T.sub.g) than said thermoplastic, and capable of withstanding temperatures of at least 350.degree. F. The composite can be prepared by PA1 a) forming a film and fabric composite having a determinable interstitial volume by simultaneously feeding a thermoplastic film and a textile fabric between first and second rollers, wherein said film is heated to a plastic state and forced into interstices in the backside of said fabric by said first roller so as to fill at least 50% of the interstitial volume; PA1 b) applying to the backside of the composite resulting from step a) a liquid barrier enhancing plastic coating having a higher melting point or glass transition temperature (T.sub.g ) …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.