知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

792 条记录 (耗时 0.022 秒)

    Fiber comprising propylene ethylene random copolymer
    5.
    发明授权
    Fiber comprising propylene ethylene random copolymer 有权

    公开(公告)号：US11840775B2

    公开(公告)日：2023-12-12

    申请号：US17617325

    申请日：2020-05-26

    申请人： BASELL POLIOLEFINE ITALIA S.R.L.

    发明人： Roberto De Palo ,  Davide Tartari ,  Monica Galvan ,  Claudio Cavalieri ,  Isabella Maria Vittoria Camurati

    IPC分类号： D01F6/30 ,  C08F210/06 ,  D01F8/06

    CPC分类号： D01F6/30 ,  C08F210/06 ,  D01F8/06 ,  C08F2800/20

    摘要： A fiber of a propylene ethylene copolymer having:



    i) xylene soluble fraction at 25° C. ranging from 14 wt % to 27 wt %;
    ii) intrinsic viscosity of the fraction soluble in xylene at 25° C. ranging from 1.0 to 2.4 dl/g;
    iii) melt flow rate, MFR, ranging from 12 g/10 min to 60 g/10 min;
    iv) an ethylene derived units content ranging from 5.0 wt % to 12.0 wt %;
    v) the ethylene derived units content of the fraction insoluble in xylene at 25° C. ranging from 2.5 wt % to 6.0 wt %;
    vi) the ethylene derived units content of the fraction soluble in xylene at 25° C. ranging from 15.2. wt % to 30.2 wt %
    vii) C13 NMR sequences PEP measured on the fraction insoluble in xylene at 25° C. ranging from 3.5 mol % to 5.5 mol %; and
    viii) the C13 NMR sequences PEP measured on the fraction soluble in xylene at 25° C. ranging from 11.0 mol % to 14.2 mol %.