US 12,221,533 B2
Heterophasic polypropylene composition
Jingbo Wang, Linz (AT); Elisabeth Potter, Linz (AT); Luc Monnissen, Arsimont (BE); and Meta Cigon, Vienna (AT)
Assigned to BOREALIS AG, Vienna (AT)
Appl. No. 17/610,765
Filed by BOREALIS AG, Vienna (AT)
PCT Filed May 14, 2020, PCT No. PCT/EP2020/063457
§ 371(c)(1), (2) Date Nov. 12, 2021,
PCT Pub. No. WO2020/229597, PCT Pub. Date Nov. 19, 2020.
Claims priority of application No. 19174794 (EP), filed on May 16, 2019.
Prior Publication US 2022/0306851 A1, Sep. 29, 2022
Int. Cl. C08L 23/16 (2006.01); C08L 23/12 (2006.01)
CPC C08L 23/16 (2013.01) [C08L 23/0815 (2013.01); C08L 23/12 (2013.01); C08L 2205/22 (2013.01); C08L 2205/24 (2013.01); C08L 2207/02 (2013.01); C08L 2207/066 (2013.01); C08L 2314/06 (2013.01)] 20 Claims
 
1. A heterophasic polypropylene composition (PP-C) comprising
65.0-95.0 wt % of a propylene random copolymer having a comonomer content of 2.0-5.0 wt % and
5.0-35.0 wt % of a linear low density polyethylene (LLDPE) having a density in a range of 905-923 kg/m3, when measured according to ISO1183,
wherein the heterophasic polypropylene composition has at least one first melting peak in a range of 110-125° C. and said first melting peak has a melt enthalpy of 30-100 J/g when determined according to ISO11357.