FIRE-RETARDANT INTUMESCENT MATERIAL Russian patent published in 2020 - IPC C09K21/12 C09D127/06 C08L27/06 C09K21/14 

FIELD: chemistry.

SUBSTANCE: invention relates to fire and heat protection material, which can be used as fire curtains. Disclosed is a fire-retardant intumescent material made in the form of a polyester fabric with a polymer coating applied thereon from a polyvinyl chloride composition containing trichloroalkylphosphate and filler, wherein the composition additionally contains chlorinated paraffin, dioctyl phthalate and a phosphorus-boron-containing oligomer, as a filler, the composition contains aluminum hydroxide and zinc borate, and trichloroalkylphosphate is trichloropropyl phosphate in the following weight ratio of components, pts.wt.: polyvinyl chloride 10.0, dioctyl phthalate 5.0, trichloropropylphosphate 35.0, chlorinated paraffin 9.0–14.0, aluminum hydroxide 22.0, zinc borate 13.0, phosphorus-boron-containing oligomer PBO 1.0–6.0.

EFFECT: high adhesion strength of bonding between plastisol-fabric layers and longer duration of fire-retardant material efficiency.

1 cl, 2 tbl, 6 ex