The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2013
Filed:
Jun. 15, 2010
Werner Posch, Enns, AT;
Michael Tranninger, Pucking, AT;
Pauli Leskinen, Helsinki, FI;
BO Malm, Espoo, FI;
Sybille Simon, Linz, AT;
Norbert Reichelt, Neuhofen/Krems, AT;
Werner Posch, Enns, AT;
Michael Tranninger, Pucking, AT;
Pauli Leskinen, Helsinki, FI;
Bo Malm, Espoo, FI;
Sybille Simon, Linz, AT;
Norbert Reichelt, Neuhofen/Krems, AT;
Borealis AG, Vienna, AT;
Abstract
Heterophasic polypropylene composition comprising (A) 45 to 70 wt % of a propylene homo- or copolymer matrix with an MFRin accordance with ISO 1133 (230° C., 2.16 kg load) of ≧80 g/10 min and (B) 25 to 40 wt % of an elastomeric propylene-ethylene copolymer, having an intrinsic viscosity IV (ISO 1628, with decalin as solvent) of ≧3.3 dl/g and an ethylene content of 20 to 50 wt %, (C) 0-15 wt % of an elastomeric ethylene/alpha-olefin random copolymer (D) 3-25 parts per weight of inorganic filler, the heterophasic polypropylene compositions having a total MFR(230° C./2.16 kg) in accordance with ISO 1133 of ≧5 g/10 min, a Charpy notched impact strength according to ISO 179/1eA at +23° C. of ≧15.0 kJ/m2, preferably ≧25.0 kJ/m, a minimum value for the Charpy notched impact strength according to ISO 179/1eA at −200 C of ≧7.0 kJ/m2, preferably ≧10.0 kJ/mand a tensile modulus according to ISO 527-3 of ≧1200 MPa; their preparation and use for producing injection molded articles being free of flow marks.