Patent ID: 11945926
Assignee: ABU DHABI POLYMERS CO. LTD (BOROUGE) LLC.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A polypropylene composition (C) having a melt flow rate MFR2 (230° C.) determined according to ISO 1133 in the range of 15 to 40 g/10 min, comprising
a) 35.0 to 55.0 wt.-%, based on the overall polypropylene composition (C), of a first heterophasic propylene copolymer (HECO1) having a melt flow rate MFR2 (230° C.) determined according to ISO 1133 in the range of 60 to 160 g/10 min, said first heterophasic propylene copolymer comprising
i) a first matrix being a first propylene polymer (M1) and
ii) a first elastomeric propylene copolymer (E1) dispersed in said first matrix,

b) ≥20.0 wt.-%, based on the overall polypropylene composition (C), of a second heterophasic propylene copolymer (HECO2) having a melt flow rate MFR2 (230° C.) determined according to ISO 1133 in the range of 3 to <50 g/10 min, said second heterophasic propylene copolymer comprising
iii) a second matrix, which is a second propylene polymer (M2) and
iv) a second elastomeric propylene copolymer (E2) dispersed in said second matrix,

c) 2.0 to 10.0 wt.-%, based on the overall polypropylene composition (C), of a high density polyethylene (HDPE) having a melt flow rate MFR2 (190° C.) determined according to ISO 1133 in the range of 2 to 15 g/10 min,
d) 5.0 to 15.0 wt.-%, based on the overall polypropylene composition (C), of a plastomer (PL), which is a copolymer of ethylene and a C4 to C8 α-olefin and having a melt flow rate MFR2 (190° C.) determined according to ISO 1133 in the range of 10 to 70 g/10 min,
e) 1.0 to 20.0 wt.-%, based on the overall polypropylene composition (C), of an inorganic filler (F),
f) 1.0 to 10.0 wt.-%, based on the overall polypropylene composition (C), of a foaming agent (FA) comprising citric acid in combination with a bicarbonate, and
g) optionally, a nucleating agent.