公开(公告)号：US11999839B2

公开(公告)日：2024-06-04

申请号：US17779686

申请日：2020-12-02

Applicant: BASELL POLYOLEFINE GMBH

Inventor： Monica Galvan ,  Gianni Perdomi

IPC: C08L23/08 ,  D01F6/04

CPC classification number: C08L23/0815 ,  D01F6/04 ,  C08L2201/08 ,  C08L2203/12 ,  C08L2205/025 ,  C08L2205/035 ,  D10B2321/021 ,  D10B2505/202

Abstract: A polyethylene composition for preparing filaments and fibers, made from or containing:



A) from 65% to 97% by weight of a copolymer of ethylene having:

1) a density of 0.925 g/cm3 or higher; and
2) a MI2 value of 0.5 g/10 min. or greater; and


B) from 3% to 35% by weight of a polyolefin composition made from or containing:

BI) from 5% to 35% by weight of a propylene homopolymer;
BII) from 20% to 50% by weight of an ethylene homopolymer or a copolymer of ethylene with up to 5% by weight of alpha-olefin comonomers, containing 5% by weight or less of a fraction soluble in xylene at 25° C.; and
BIII) from 30% to 60% by weight of a terpolymer of ethylene, propylene, and 1-butene containing from 30% to 85% by weight of a fraction soluble in xylene at 25° C.