MASTIC COMPOSITION AND METHOD OF OBTAINING THEREOF Russian patent published in 2015 - IPC C08L95/00 C09D195/00 C10C3/02 

FIELD: chemistry.

SUBSTANCE: composition contains, wt %: oil bitumen or asphalt of propane tar deasphalting of liquid asphalt (PTD) - 86-90, processed absorbent of butadiene and isoprene production - 5-8, sulphuric acid - the remaining part. First oil bitumen or PTD is mixed with absorbent at temperature 100-110°C for 150-180 min, after which sulphuric acid is introduced into reaction mass by dripping at rate 40-50 kg/h at temperature of reaction mass 110-125°C. After that, obtained reaction mass is mixed for 120-150 min at temperature 125-130°C, then temperature is increased to 140°C, after which mixing is continued for 240-300 min. Then temperature of reaction mass is increased to 150°C with mixing for 240 min, after which obtained product is subjected to aging.

EFFECT: obtaining mastic composition with anticorrosion and waterproofing properties, possessing stable exploitation properties.

7 cl, 3 tbl, 2 ex