Flame retardant fabrics and process to make same
US10633789B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2016 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Apr 27, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2672
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A flame retardant fabric wherein a flame retardant composition is applied to the fabric while the fabric is being stretched. Preferably, the fabric is a blend of cotton and a thermoset. Carbon fibers may be included to impart anti-static properties. The present invention includes a method of treating a woven or knitted fabric of cotton blended with a thermoset, or with a thermoplastic, or with both with a flame retardant composition comprising the steps of stretching the fabric up to 12% greater than its un-stretched dimensions and, while so stretched, applying a flame retardant to the fabric and then allowing the fabric to shrink back to its approximate original dimensions. The flame retardant may either be applied to the fabric or the fabric may be immersed in an aqueous bath containing flame retardants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.