Methods, systems and compositions for fire retarding substrates

Details Methods, systems and compositions for fire retarding substrates Methods, systems and compositions for fire retarding substrates

D - Textiles, Paper

06

M

D06M 11/70 (2006.01) D06B 23/20 (2006.01) D06M 11/45 (2006.01) D06M 11/48 (2006.01) D06M 11/59 (2006.01) D06M 11/71 (2006.01) D06M 11/82 (2006.01) D06M 13/08 (2006.01) D06M 13/288 (2006.01) D06M 13/292 (2006.01) D06M 13/328 (2006.01) D06M 13/332 (2006.01) D06M 13/335 (2006.01) D06M 13/358 (2006.01) D06M 13/432 (2006.01)

Patent

CA 2507209

The invention relates to "closed loop" processes, systems and compositions for providing flame retardant properties to substrates containing at least about 5 weight percent of non-thermoplastic material, such as non-thermoplastic fibers, fibrous compositions or fabrics, and to treated substrates. The processes and systems are environmentally friendly, and advantageously conserve chemical compounds and water by recycling flame retardant composition. The processes generally comprise: (a) applying a flame retardant composition containing one or more flame retardant substances, an aqueous liquid and one or more adhesion agents to substrates; (b) removing excess flame retardant composition from the substrates; (c) permitting the substrates to dry to a low moisture content; and (d) recycling excess flame retardant composition; wherein the flame retardant composition does not contain an amount of a dye or other agent that could contaminate the flame retardant composition.

L'invention concerne des processus fonctionnant "en boucle fermée", des systèmes et des compositions pour ajouter des propriétés ignifuges aux substrats contenant au moins 5 % de matériau non thermoplastique tel que des fibres non thermoplastiques, des compositions ou tissus fibreux et des substrats traités. Les processus et systèmes sont respectueux de l'environnement et économisent avantageusement les composés chimiques et l'eau par le recyclage de la composition ignifuge. Ces processus consistent généralement en ce qui suit: (a) appliquer une composition ignifuge contenant une ou plusieurs substances ignifuges, un liquide aqueux et un ou plusieurs agents d'adhérence aux substrats; (c) permettre aux substrats de sécher pour atteindre une teneur en humidité peu élevée; et (d) recycler la composition ignifuge en excès, ladite composition ignifuge ne comprenant pas la quantité d'un colorant ou d'un autre agent qui pourraient contaminer la composition ignifuge.

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