SEALING COMPOSITION Russian patent published in 2001 - IPC

FIELD: preparation of polymeric bitumen materials, more particularly coating of metallic and concrete surfaces. SUBSTANCE: composition comprises, wt %: bitumen, 68-80: butyl rubber, 4.5-12.0; filler, 1.3-1.6; petroleum extracts resulting from selective purification of butyric fractions, 8.0-8.5; stillage residues resulting from production of C_2I or higher synthetic fatty acids, 3-5; stillage residues resulting from production of C₂₀ synthetic fatty alcohols; vitamin AB of structure: , 0.01-0.1. Invention makes it possible to increase strength properties at positive and negative temperatures of coatings and to protect them from hydrogen sulfide cracking and total corrosion. EFFECT: improved properties of the sealing composition. 1 dwg, 5 tbl