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    • 3. 发明申请
    • Polypropylene mixture
    • 聚丙烯混合物
    • US20100228214A1
    • 2010-09-09
    • US12712699
    • 2010-02-25
    • Steffen BornemannMarkus HabererHelmut Hartl
    • Steffen BornemannMarkus HabererHelmut Hartl
    • A61F13/514D01F8/06D04H3/16C08L23/12
    • D04H13/00B32B5/022B32B5/24B32B27/32B32B2262/0253B32B2262/14B32B2555/00C08L23/12C08L2205/02D01D5/0985D01F6/06D01F6/46D01F8/06D04H3/005D04H3/16Y10T428/249978Y10T442/641Y10T442/681C08L2666/06
    • The present invention relates to the use of a polypropylene mixture for the production of a spunbonded non-woven fabric having increased elastic property, wherein the polypropylene mixture substantially comprises a first homopolypropylene and a second homopolypropylene, wherein an MFR of the first homopolypropylene is greater than an MFR of the second homopolypropylene, wherein the second homopolypropylene has a weight proportion in the polypropylene mixture of at least 3% by weight to a maximum of 25% by weight, wherein the first homopolypropylene is substantially the remaining weight proportion of the polypropylene mixture, wherein the second homopolypropylene has an MFR between 0.7 and 14 g/10 min (230° C./2.16 kg) according to ISO 1133, and a difference of the MFR of the second homopolypropylene to the MFR of the first homopolypropylene is at least 10 g/10 min, and an upper limit of the MFR of the first homopolypropylene is 55 g/10 min (230° C./2.16 kg) according to ISO 1133. Substantially here shall mean that only the two homopolypropylenes are used as polymers. Additionally, additives can be added, but no further polymer. The invention further relates to a corresponding polypropylene mixture, a spunbonded non-woven fabric made from said polypropylene mixture, and a corresponding method of production.
    • 本发明涉及聚丙烯混合物用于生产具有增加的弹性的纺粘非织造织物的用途,其中聚丙烯混合物基本上包含第一均聚丙烯和第二均聚丙烯,其中第一均聚丙烯的MFR大于 所述第二均聚丙烯的MFR,其中所述第二均聚丙烯在所述聚丙烯混合物中的重量比例为至少3重量%至最大25重量%,其中所述第一均聚丙烯基本上为所述聚丙烯混合物的剩余重量比例, 其中所述第二均聚丙烯根据ISO 1133具有0.7至14g / 10min(230℃/ 2.16kg)的MFR,并且第二均聚丙烯的MFR与第一均聚丙烯的MFR的差异为至少10 g / 10分钟,根据ISO 1133,第一均聚丙烯的MFR的上限为55g / 10min(230℃/ 2.16kg)。 这里的意思是仅将两种均聚丙烯用作聚合物。 另外,可以添加添加剂,但不能加入聚合物。 本发明还涉及相应的聚丙烯混合物,由所述聚丙烯混合物制成的纺粘非织造织物和相应的生产方法。