FIRE-PROOF POLYMER COMPOSITION Russian patent published in 1995 - IPC

FIELD: organic chemistry. SUBSTANCE: proposed composition contains syndiotactic polystyrene or its mixture with other thermoplast and/or rubber, mass ratio polystyrene and thermoplast or rubber being (10-95):(5-90); bromated polystyrene or polyphenyl oxide; antimony trioxide. Quantity of said ingredients (parts) is 100, 10-35 and 3-8 respectively. Proposed composition may additionally contain 0.2-1.0 part of polytetraflurethylene and 15-290 parts of filler, talk or glass fiber being used as said filler. Molecular weight of mentioned above syndiotactic polystyrene is 180000-800000. Polyphenylene sulfide or polyphenylene oxide or polyethylene terephthalate are used as said thermoplast, butadiene rubber with grafted styrene or copolymer of methyl methacrylate with n-butyl acrylate and styrene are used as mentioned above rubber. Proposed composition is prepared by mixing components. EFFECT: increases heat resistance of composition. 5 cl, 5 tbl