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 in the oil-and-gas industries. 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 intermediate thermo-insulating layer, the inner layer made out of the cotton fabric and the hydraulic insulating layer located between the intermediate thermo-insulating layer and the outer layer. The hydraulic insulating layer is made in the form of the polymeric composition consisting of (in mass shares): 60-75 - chlorosulfonated polyethylene, 25-40 - the chloroprene rubber, 5-100 - the mineral inactive filler, 0.5-15 - the fire-retardant agent, 1-10 - the vulcanization accelerators, 5-15 - the tri chloroethylphosfate and 200-400 - the 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 may use the mixture of the butyl acetate and toluene taken in the ratio of 1:1. The produced multilayer fire-proof material has the high flame resistance and the flex stability, the low abradability of the hydraulic insulating layer and also stability of the vulcanization production process at the multilayer fire-protection material manufacture.

EFFECT: the invention ensures production of the multilayer fire-protection material, which has the high flame resistance, the flex stability, the low abradability of the hydraulic insulating layer and stability of the vulcanization production process at the multilayer fire-protection material manufacture.

5 cl, 1 tbl, 3 ex