BITUMEN-RESIN COMPOSITION Russian patent published in 2019 - IPC C08L95/00 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to production of compositions for application of protective coatings based on bituminous materials and can be used as waterproofing and anticorrosive protection of pipeline transport, as well as other waterproofing and anticorrosive paint materials. Described is a bitumen-resin composition for protective coatings, which contains bitumen, polymer and an organic solvent, in which the polymer contains an aminated petroleum resin obtained by reducing 1.0 part of the nitrated petroleum polymer resin with 0.2 parts of iron filings in presence of 0.4 parts hydrochloric acid at temperature of 60 °C for 3 hours, at following ratio of components, wt%: oil bitumen 37.2–39.6, aminated petroleum resin 0.4–2.8, organic solvent – the rest.

EFFECT: high impact strength and lower water absorption of the coating obtained using the bitumen-resin composition have.

1 cl, 1 tbl