ANAEROBIC SEALING COMPOSITION Russian patent published in 1995 - IPC

FIELD: production of sealing compositions. SUBSTANCE: proposed composition contains oxalic acid or its salt with organic base which is chosen of group including oxalate of 4,4-bis-(dimethylamino)phenylmethane, oxalate of dimethylaniline and oxalate of dimethyl-p-toluidine. Said composition contains (mass parts): dimethylacryl ester of polyethylene glycol 100, hydroperoxide initiator 0.5-4.0, sulfamide promoter 0.3-3.5, amine promoter 0.3-2.0, stable free radical 0.001-0.05, oxalic acid or its salt 0.0005-0.0500. Mentioned above stable free radical is chosen of group which contains 2,2,6,6-tetramethyl-4-oxopiperidine-1-oxyl, 2,2,6,6-tetramethyl-4-oxypiperidine-1-oxyl, 2,2,5,5-tetramethyl-3-carbamidopyrroline-1-oxyl, 2,2,5,5-tetramethyl-3-carboxypyrroline-1-oxyl, 1,3,5-triphenylverdazyl and 1,1-diphenyl-2-picrylhydrazyl. Additionally said composition may contain 0.5-60.0 mass parts of polymer stiffener per 100 mass parts of polymer composition. EFFECT: increases stability of composition, decreases its toxicity. 3 cl, 1 tbl