FLAME RETARDING COMPOSITION WITHOUT HALOGEN, FLAME RETARDING YARN MADE THEREFROM, AND FLAME RETARDING TEXTILE STRUCTURE CONTAINING SUCH YARN

摘要

The invention concerns a flame retarding composition without halogen to be applied on a substrate, comprising a polymer binder for binding the flame retarding composition to the substrate, and at least a flame retarding agent, the flame retarding agents forming an intumescent system comprising an acid source agent, and a carbon source agent, excluding a supplementary generator of expanding gas, the weight ratio between the acid source agent and the carbon source agent being 1.85. The invention also concerns yarn made fireproof by application of the flame retarding composition, and textile structures comprising such fireproof yarn.