FIREPROOFING SYNTHETIC POLYMERIC MATERIAL AND A METHOD OF ITS SYNTHESIS Russian patent published in 1995 - IPC

FIELD: chemical technology of polymeric materials. SUBSTANCE: material has carbamide cyanurate as antipyrene, 95 wt.-% of which quantity has maximal particle size 0.025 mm. Material is made of polyamide, homo- or copolymers of acrylonitrile and polyurethane and can contain ammonium polyphosphate. Carbamide cyanurate is added to the reaction mass at concentration mainly 6-20 wt.-% Material made of these polymers has index of fireproofing properties by method UL-94 V-0 and self-extinctions for 10 s (not more) after contact with the flame for 10 s. EFFECT: enhanced quality of material. 7 cl, 1 tbl