| 摘要 |
A fibre for thermal bonding comprising semicrystalline random copolymers of propylene, 1-hexene and optionally another alpha-olefin, the amount of 1-hexene being from 0.75 to less 1.52 mol % (i.e. 1.5 to less than 3 wt %) with respect to the total weight of the copolymer. The said copolymers possess a value of melt flow rate (MFR) ranging from 4 to 35 g/10 min and a molecular weight distribution, in terms of the ratio between weight average molecular weight and numeric average molecular weight ( <O OSTYLE="SINGLE">M<SUB>w</SUB>/ <O OSTYLE="SINGLE">M<SUB>n</SUB>), ranging from 4 to 12.
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