RUBBER MIX Russian patent published in 1995 - IPC

FIELD: medical equipment. SUBSTANCE: rubber mix contains: mas.part.: ethylene-propylene rubber 100; chlorosulfonated polyethylene 12-16; sulfur vulcanizing group 6.7- 6.8 and X-ray protective filler in form of optical polishing powder containing cerium dioxide at least 70 mas.% and 9-14% of fluorine-ion 476-695. Material characteristics: lead equivalent for sample thickness δ corresponding to 0.6 mm of Pb is 2.47-2.58 mm; tensile strength 45-48 kgf/sq.cm; elongation 145-160%; material is nontoxic, leaves no traces in touching, does not crumble in prolonged service on bends and preserves its monolithic structure. EFFECT: higher efficiency. 3 tbl