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ELASTIC NONWOVEN FABRIC, PROCESS FOR PRODUCING THE SAME, AND TEXTILE PRODUCT COMPRISING THE ELASTIC NONWOVEN FABRIC
专利权人:
发明人:
申请号:
EP08777591.2
公开号:
EP2161360B1
申请日:
2008.06.25
申请国别(地区):
EP
年份:
2014
代理人:
摘要:
(1) An elastic nonwoven fabric and a fiber product using the elastic nonwoven fabric, the elastic nonwoven fabric containing a crystalline resin composition containing low crystalline polypropylene and high crystalline polypropylene, the low crystalline polypropylene satisfying items (a) and (b) below, and a crystallization temperature (Tc) of the crystalline resin composition measured with a differential scanning calorimeter (DSC) being from 20 to 100°C: (a) a melting point (Tm-D) being from 0 to 120°C, which is defined as a peak top of a peak observed on the most high temperature side of a melt endothermic curve obtained by maintaining at -10°C for 5 minutes and increasing in temperature at 10°C per minute in a nitrogen atmosphere with a differential scanning calorimeter (DSC) and (b) a stereoregularity index ([mm]) being from 50 to 90% by mol (2) an elastic nonwoven fabric and a fiber product using the elastic nonwoven fabric, the elastic nonwoven fabric being produced by using a crystalline resin composition containing low crystalline polypropylene satisfying items (c) to (h) below, and a releasing agent: (c) [mmmm] = 20 to 60% by mol (d) [rrrr]/(1-[mmmm]) ‰¤ 0.1 (e) [rmrm] > 2.5% by mol (f) [mm]×[rr]/[mr] 2 ‰¤ 2.0 (g) mass average molecular weight (Mw) = 10,000 to 200,000 and (h) molecular weight distribution (Mw/Mn) < 4 and (3) an elastic nonwoven fabric and a fiber product using the elastic nonwoven fabric, the elastic nonwoven fabric containing core/shell type composite fibers containing low crystalline polypropylene satisfying the items (c) to (h) have excellent elastic recovery property and pleasant texture without stickiness.
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