| 摘要 |
<p>The invention provides a pipe coating which comprises a bitumen composition comprising in the range of from 20 to 98 % by weight of a bitumen, in the range of from 0.5 to 30 % by weight of a block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene wherein the diene block of the block copolymer is hydrogenated, and in the range of from 0.5 to 30 % by weight of a stereoregular polyolefin, all weights based on total bitumen composition; a pipe coated in said pipe coating; a process of coating pipes in said pipe coating, and the use of said bitumen composition as a pipe coating.</p> |
