公开(公告)号：EP4323448A1

公开(公告)日：2024-02-21

申请号：EP22722235.3

申请日：2022-04-11

申请人： Basell Poliolefine Italia S.r.l.

发明人： RIEMMA, Antonio ,  CIACCIA, Eleonora ,  IZZI, Marco ,  CIARAFONI, Marco ,  DI CAPUA, Alessia

IPC分类号： C08L23/12

公开(公告)号：EP4450685A1

公开(公告)日：2024-10-23

申请号：EP23169056.1

申请日：2023-04-20

申请人： Basell Poliolefine Italia S.r.l.

发明人： RIEMMA, Antonio ,  CAVALIERI, Claudio

IPC分类号： D01F6/46

摘要： A fiber comprising propylene based polymer composition comprising:
A) from 90 wt% to 65 wt% of a propylene homopolymer having a Xylene Soluble fraction at 25°C,determined according to ISO 16152: 2005, ranging from 1.5 wt% to 6.0 wt% ;
B) from 10 wt% to 35 wt% a recycled polypropylene composition being a Post-Industrial Resin (PIR) or Post-Consumer Resin (PCR) ;
wherein the propylene based polymer composition has a Melt Flow Rate, determined according to the method ISO 1133 (230° C, 2.16 kg), ranging from 15.0 g/10 min to 50.0 g/10 min and a distribution of molecular weight Mw/Mn ranging from 4.5 to 7.5 and the propylene based polymer composition being obtainable with a visbreaking process wherein the visbreaking degree MFRfin/MFRinit is comprised between 3.0 and 10.0 wherein MFRfin is the final Melt Flow Rate of the propylene based composition and MFRinit is the Melt Flow Rate of the propylene based composition before the visbreaking process.