Pipe coating
OwnerEvert Alan Mulderinventor
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Abstract
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.
Claims10
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.
Use of 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, as a pipe coating.
Dependencies are inferred from the claim text.