| 摘要 |
<p>A fibrous floor covering characterized in that it has an integral backing layer comprising a mixture of (a) from 50 to 95% w of a bituminous component comprising a bitumen, and optionally a wax, wherein said bituminous component has a penetration of below 30 (0.1 mm) at 25 DEG C, and (b) from 5 to 50% w of a block copolymer having the general configuration… A-B-(-B-A)n… wherein A is a thermoplastic polymer block of a monovinyl aromatic hydrocarbon and B is an elastomeric polymer block of a conjugated diene and n is an integer, suitably of from 1 to 5.</p> |
