| 摘要 |
FIELD: liquid conveyance, pipeline coating. ^ SUBSTANCE: claimed coating consists bitumen composition, obtained by blending of bitumen and premix additive, containing (wt %) I) 20-90 % at least one block copolymer of vinylaromatic hydrocarbon and conjugated diene; ii) 1-20 % of carbon black, and balance: iii) auxiliary mixing agent. Bitumen composition may optionally contain a filling. Pipelines having such coating and method for producing the same are also disclosed. Coated pipelines of present invention are useful in high-temperature liquid conveyance. ^ EFFECT: coated pipelines of improved high-temperature characteristics. ^ 9 cl, 1 tbl, 5 ex |
