公开(公告)号：US20210070970A1

公开(公告)日：2021-03-11

申请号：US16956196

申请日：2018-12-18

申请人： SABIC GLOBAL TECHNOLOGIES B.V.

发明人： Patrick Elisabeth Luc VOETS ,  Henrica Norberta Alberta Maria STEENBAKKERS-MENTING ,  Martin Alexander ZUIDEVELD ,  Akhlaq A. MOMAN ,  Waltraud VOIGTLANDER

IPC分类号： C08L23/12 ,  C09J7/24 ,  C08F10/06 ,  C08F4/02

摘要： The invention relates to a polypropylene composition comprising a propylene homopolymer or propylene-ethylene copolymer having an ethylene content of at most 1.0 wt % based on the propylene-ethylene copolymer, wherein the amount of propylene homopolymer or propylene-ethylene copolymer is at least 98 wt %, for example at least 98.5 wt %, preferably at least 99 wt %, more preferably at least 99.5, for example at least 99.75 wt % based on the polypropylene composition, wherein the polypropylene composition has a melt flow rate in the range of 0.70 to 2.4 dg/min as measured according to IS01 133 (2.16 kg/230° C.), an Mw/Mn in the range from 7.0 to 13.0, wherein Mw stands for the weight average molecular weight and Mn stands for the number average weight, an Mz/Mn is in the range from 20 to 50, wherein Mz stands for the z-average molecular weight and wherein Mw, Mn and Mz are measured according to ASTM D6474-12.