Patent · US Active

Tough composition for food applications

US8207272B2 · kind B2 · utility

25Cited by

0References

18Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Klaus Bernreitner · Linz, AT
Christelle Grein · Linz, AT

Key dates

Filing date	Oct 28, 2009
Grant date	Jun 26, 2012
Priority date	—
Expiry date	Oct 28, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L23/16
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Heterophasic polypropylene composition comprising:—a polypropylene matrix (M) and—an elastomeric copolymer (E) being dispersed in the matrix (M), wherein the elastomeric copolymer (E) comprises units derived from—propylene and—ethylene and/or C4 to C20 α-olefin, and wherein further,—the intrinsic viscosity of the xylene cold soluble fraction (XCS) of the heterophasic polypropylene composition is above 2.1 dl/g measured according to ISO 1628-1 (at 135° C. in decaline) and/or—Mz/Mw of the xylene cold soluble fraction (XCS) of the heterophasic polypropylene composition is more than 2.6, preferably 2.7, wherein the Mz is the z-average molecular weight measured according to ISO 16014-4:2003 and Mw is the weight average molecular weight measured according to ISO 16014-4:2003.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.