COMPOUND PROTECTING SURFACES OF METAL ARTICLES IN PROCESS OF LOCAL TREATMENT Russian patent published in 2000 - IPC

FIELD: jeweler's art, insulation of surfaces of metal articles, mainly jewelry articles, in process of local electrochemical or chemical treatment. SUBSTANCE: compound includes, per cent by mass: copolymer of butylmetacrylate with metacryl acid ( with content of butylmetacrylate in copolymer equal to 95.0 per cent by mass ) 19.80-26.70, copolymer of ethylene with vinylacetate ( with content of vinylacetate in copolymer equal to 26.0-30.o per cent by mass ) 0.85-1.00, toluene 14.50-15.80, butylacetate 36.10-39-50, ethanol 7.20-8.00, butanol 14.50-15.80, organic pigment 0.10-0.20. Proposed compound for protection of surfaces of metal articles in process of local electrochemical and chemical treatment displays high adhesive and electric insulation properties and can be easily removed from metal surfaces after termination of local treatment. EFFECT: high adhesive and electric insulation properties of proposed compound. 1 tbl