BITUMINOUS POLYMER MASTIC TRANSCOR FOR POLYMER ROLL MATERIAL Russian patent published in 2002 - IPC

FIELD: protection of pipes and piping systems against corrosion, such as oil lines, petroleum product lines and gas lines. SUBSTANCE: proposed bituminous polymer mastic TRANSCOR used for applying insulating anticorrosive coats on pipe lines contains bitumen, thermoelastoplastic, plasticizer and filler. Divinyl styrene thermoelastoplastic is used as thermoelastoplastic; heavy road asphalt is used as bitumen and rubber is additionally introduced into mastic at the following content of components, mass-%: heavy road asphalt, 70 to 90; divinyl styrene thermoelastoplastic, 0.15 to 12; plasticizer, 0.5 to 7.5; rubber, 1 to 7 and filler, 1,5 to 12. EFFECT: improved quality of anticorrosive corrosion protection of pipe lines; increased service life of underground oil pipe lines. 2 cl, 1 tbl, 4 ex