MULTILAYER FIRE-PROTECTION MATERIAL Russian patent published in 2007 - IPC B32B25/04 B32B27/12 D06M15/693 C09K21/14 C08L23/06 C08L11/00 C08K3/34 C08K3/22 

FIELD: fire-protection; oil-and-gas industries; petrochemical industry; production of the multilayer fire-protection materials.

SUBSTANCE: the invention is pertaining to the field of production of the multilayer fire-protection materials and may be used for manufacture of the special purpose fire-protective clothing for the workers acting in the highly inflammable aerosphere - the fire fighters, the employees of the refueling stations and the oil-and-gas industry. The multilayer fire-protection material is made in the form of the packet containing the outer layer made out of the heat-resistant fibers, the hydraulic insulating layer, the intermediate thermo-insulating layer and the inner layer made out of the cotton cloth. The hydraulic insulating layer is applied on the outer surface of the outer layer and made in the form of the polymeric composition consisting of (in mass %): 80-95 - the chlorosulfonated polyethylene, 5-20 - the chloroprene rubber, 5-100 - the mineral inactive filler, 0.5-15 - the fire-retardant agent, 1-10 - the vulcanization accelerator and 200-400 - dissolvent. As the mineral inactive filler may be used kaolin, as the fire retardant - antimony trioxide, as the vulcanization accelerator - magnesium oxide. As the dissolvent they use the mixture of butyl acetate and toluene taken in the ratio of 1:1. The produced multilayer fire-protection material has the high flame resistance, the flex stability and the frost resistance, the reduced rigidity and high efficiency of manufacture.

EFFECT: the invention ensures, that the produced material has the high flame resistance, the flex stability and the frost resistance, the reduced rigidity and the high efficiency of its manufacture.

5 cl, 1 tbl, 3 ex