Patent · US Active

Automotive interior compound

US9206304B2 · kind B2 · utility

3Cited by

1References

14Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Klaus Lederer · Kalwang, AT
Erwin Kastner · Linz, AT

Key dates

Filing date	Apr 15, 2011
Grant date	Dec 8, 2015
Priority date	—
Expiry date	Feb 27, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2308/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Composition having a melt flow rate MFR2 (230° C.) measured according to ISO 1133 in the range of 15 to 30 g/10 min, said composition comprises a heterophasic propylene copolymer (H-PP1), a high melt flow polypropylene (HMF-PP), a styrenic block copolymer (SBC) and a mineral filler (F), wherein (a) the heterophasic propylene copolymer (H-PP1) has a xylene cold soluble (XCS) content measured according to ISO 6427 in the range of 22.0 to 50.0 wt.-% and comprises (a1) a polypropylene matrix (M1) and (a2) an elastomeric copolymer (E1) comprising units derived from propylene and ethylene and/or C4 to C12 α-olefin, (b) the melt flow rate MFR2 (230° C.) measured according to ISO 1133 of the high melt flow polypropylene (HMF-PP) is higher than the melt flow rate MFR2 (230° C.) measured according to ISO 1133 of the heterophasic propylene copolymer (H-PP1), and (c) the high melt flow polypropylene (HMF-PP) has melt flow rate MFR2 (230° C.) measured according to ISO 1133 of at least 40.0 g/10 min.

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