SEALING COMPOSITION Russian patent published in 2004 - IPC

FIELD: sealing materials.

SUBSTANCE: hermetic designed for sealing, anticorrosion protection, and protection against abrasive destruction of various mixtures such as metal, wood, rubber, ceramics, brick, concrete, bituminous felt, etc. comprises butadiene/styrene thermoelectroplastic, fillers, adhesive, antioxidant, organic solvent, and modifiers increasing heat resistance of hermetic and its resistance to corrosive media such as quinoid-type compounds, e.g. o,o-bis(1,3,5-tri-tert-butyl-4-oxocyclohexadien-2,5-yl)-p-benzoquinonedioxyme or o,o-bis(1,3,5-tri-tert-butyl-4-oxocyclohexadien-2,5-yl)-2-methyl-5-propyl-p-benzoquinonedioxyme, or quinoid compounds in combination with metal oxides, e.g. manganese dioxide, and further sulfur and/or metal oxides in combination with organic sulfides, e.g. tetramethylthiuram-disulfide, tetraethylthiuram-disulfide, 2-mercaptobenzothiazole, do(2-benzothiazole-disulfide), or variable-valence metal chlorides.

EFFECT: increased heat resistance and resistance to corrosive media such as solvents, mineral oils, acids, alkalis, and salts.

2 cl, 3 tbl