CONDUCTIVE ELASTOMER COMPOSITION FOR GROUNDING ELECTRODES ( AND ITS VARIANTS ), GROUNDING EXTENDED ELASTOMER ELECTRODE, ANODE GROUNDING AND DEEP GROUNDING ANODE ELECTRODE Russian patent published in 2004 - IPC

FIELD: rubber industry. SUBSTANCE: invention refers to electrical engineering protection of objects against corrosion, specifically, to cathode protection of underground structures with variable electric characteristics, for instance, pipe-lines and cables, in clearly heterogeneous or high-resistance electrolytic media. Invention deals with elastomer conductive compositions for manufacture of electrodes based on butadiene-nitrile rubber, chloroprene rubber or their mixture as well as on mixture of butadiene-nitrile rubber and butadiene-styrene thermal elastoplast saturated with carbon-carrying filling agents in combination with various special admixtures ( plasticizers, vulcanizing agents, antioxidants, etc ) ensuring specific resistance 0.05-0.5 Ohm m and 0.5- 2500.0 Ohm m. Another group of inventions deals with grounding elastomer electrode manufactured with the help of above-mentioned elastomer compositions in the capacity of flexible jacket as well as with anode grounding and deep anode grounding electrodes with use of mentioned elastomer electrodes. EFFECT: prolonged operational life of elastomer electrodes and therefore of gear with their usage, increased efficiency of corrosion protection of articles. 11 cl, 5 dwg, 7 tbl