Patent ID: 11952482
Assignee: BOREALIS AG
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 11:
12. The heterophasic polypropylene composition (C) according to claim 1, having one or more of the following properties:
i) a tensile modulus, measured according to ISO 527-1. -2 on a specimen of Tensile type 1B; 170×10×4 mm (ISO 1B), in the range from 1200 to 2000 MPa;
ii) a Charpy Notched Impact Strength at 23° C., measured according to ISO 179 1eA using injection moulded bar test specimens of 80×10×4 mm prepared in accordance with EN ISO 19069, in the range from 5.0 to 30.0 kJ/m2;
iii) a Charpy Notched Impact Strength at −20° C., measured according to ISO 179 1eA using injection moulded bar test specimens of 80×10×4 mm prepared in accordance with EN ISO 19069, in the range from 3.5 to 20.0 kJ/m2;
iv) a puncture energy at 23° C., measured according to ISO 6603-2 using injection moulded plaques of 60×60×3 mm and a test speed of 4.4 m/s, in the range from 30.0 to 60.0 J;
v) a puncture energy at −20° C., measured according to ISO 6603-2 using injection moulded plaques of 60×60×3 mm and a test speed of 4.4 m/s, in the range from 20.0 to 100.0 J;
vi) an energy to max force at 23° C., measured according to ISO 6603-2 using injection moulded plaques of 60×60×3 mm and a test speed of 4.4 m/s, in the range from 15.0 to 40.0 J; and
vii) an energy to max force at −20° C., measured according to ISO 6603-2 using injection moulded plaques of 60×60×3 mm and a test speed of 4.4 m/s, in the range from 20.0 to 60.0 J.