| 摘要 |
<p>The present invention provides a fiber containing remarkably high heat resistance and softness and fiber-processe d products using the same. A fiber formed from a polypropylene serving as at least one raw material, wherein the polypropylene is confirmed with NMR spectrometry that an isotactic pentad fraction (mmmm) of 0.950 - 0.995, a syndiotactic pentad fraction (rrrr) of 0 - 0.004, different bonds due to 2,1-insertion reaction and 1,3-insertion reaction in an amount of 0 - 0.3 mol%, and absence of terminal double bonds, and has a weight average molecular weight (Mw) of 50,000 - 1,000,000, and has a ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn) of 1.5 - 3.8; and fiber-processed products using the fiber.</p> |
