BITUMEN COMPOSITION (VERSIONS) Russian patent published in 2017 - IPC C08L95/00 C10C3/04 

FIELD: chemistry.

SUBSTANCE: composition includes a mixture of oxidized bitumen and heavy gas oil of catalytic cracking, while as oxidized bitumen contains the product of oxidation by air oxygen of weighted tar with VU₈₀ 102-132 s and further comprises a linear block copolymer based on styrene and butadiene at a certain ratio of components. In the second embodiment, the composition comprises a mixture of the said oxidized bitumen and a non-oxidized oil product, wherein, as the unoxidized oil, contains a VAT rectification residue of the vacuum distillate catalytic cracking products and further comprises a linear block copolymer based on styrene and butadiene at a certain component ratio. Bitumen composition allows the use of weighted tar with VU₈₀ 102-132 s for producing bitumen of the road improved BNDU-85.

EFFECT: improving the properties of the coating, corresponding to its standard physical and mechanical characteristics.

2 cl, 2 tbl, 11 ex