FIREPROOF POLYMERIC COMPOSITION Russian patent published in 2000 - IPC

FIELD: chemistry of polymers. SUBSTANCE: described is polymeric composition comprising suspension polyvinyl chloride, plasticizer, stabilizer, antimony trioxide, aluminium hydroxide, aerosil and additional components. Plasticizer is mixture of dialkylphenyl phosphate and dioctyl phthalate at 1: 3 ratio; stabilizer is tribasic lead sulfate and dibasic lead sulfate at 2: 1 ratio (wt parts); additional components include calcium stearate, titanium dioxide, chlorinated paraffin syntamide polyethylene glycol esters of fatty acid monoethanolamides; colorant is phthalocyanine blue, ratios of components being as follows: wt parts: suspension polyvinyl chloride, 100.00; calcium stearate, 0.5-1.5; plasticizer, 35.5-45.5; stabilizer, 3.0-7.5; aluminium hydroxide, 9.0-15.0; antimony trioxide, 5.0-12.0; aerosil, 2.0-8.0, titanium dioxide, 3.0-5.0; colorant, 0.0001-0.0005; polyethylene glycol esters of synthetic fatty acid monomethanol amides, 1.5-3.0; chlorinated paraffin, 2.0-10.0. EFFECT: higher fire resistance, greater relative elongation, higher strength of the material and weld seam based on the claimed polymeric composition.