FIRE-RESISTANT THERMOPLASTIC COMPOSITION Russian patent published in 2014 - IPC C09K21/06 C09K21/14 C08K3/00 C08K5/00 C08K5/5419 C08L75/04 H01B7/295 

FIELD: chemistry.

SUBSTANCE: invention relates to fire-resistant thermoplastic compositions, preferably thermoplastic polyurethane (TPU) compositions used when high fire-resistance is desirable, e.g., for wire and cable applications. The composition contains: (a) a thermoplastic polyurethane polymer, (b) a flame retardant and (c) polysiloxane which is modified by adding, preferably at the end of the chain, functional groups such as vinyl, methacrylic and/or epoxy groups. The polysiloxane is present in amount of 0.25 to 0.75 wt % with respect to the total weight of the composition. The composition is used as heat-insulating material for electrical conductors or as electrical conductor sheathing in wire and cable design.

EFFECT: mixture does not drip in case of fire and has very high heat resistance.

12 cl, 1 tbl, 1 ex