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

FIELD: construction.

SUBSTANCE: bitumen composition comprises the mixture of oxidized bitumen with a non-oxidized oil product. Wherein the oxidized bitumen is represented by bitumen with the softening point of 51-53°C by the ring and ball method, obtained by weighted tar oxidation with TDM₈₀ of 123-158 sec, and the non-oxidized oil product is represented by the residual extract of oils selective purificationg by solvents, or a mixture of the residual and the viscous extracts of the selective oils purification, containing no more than 40% by weight of the viscous extract of the selective oils purification at the ratio oxidized bitumen: non-oxidized oil product of 95-89: 5-11 wt %.

EFFECT: provding the possibility for obtaining bitumen complying with the Interstate standard requirements.

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