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:
Jan. 25, 2022
Filed:
May. 07, 2019
Borealis Ag, Vienna, AT;
Markus Gahleitner, Linz, AT;
Jingbo Wang, Linz, AT;
Klaus Bernreitner, Linz, AT;
Pauli Leskinen, Porvoo, FI;
Cornelia Tranninger, Linz, AT;
BOREALIS AG, Vienna, AT;
Abstract
The present invention is directed to a heterophasic polypropylene composition of high transparency based on excellent compatibility of the propylene 1-hexene random copolymer used as matrix with different types of external modifiers dispersed within the matrix. The present invention is further directed to a process for producing such a polypropylene composition and to a film, in particular a cast film, obtained from such a polypropylene composition. The polypropylene composition comprising a blend of a propylene copolymer comprising 2.5 to 12.0 wt % of 1-hexene as a comonomer, and having a melt flow rate MFRof 0.1 to 100 g/10 min, and an ethylene homo- or copolymer having a melt flow rate MFRof 0.05 to 30.0 g/10 min and a density of 850 to 920 kg/m, wherein the melt flow rate MFRof the polypropylene composition is from 1.0 to 12.0 g/10 min.