Patent · US Active

High flow polyolefin composition with low shrinkage and CLTE

US9487648B2 · kind B2 · utility

3Cited by

0References

13Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Markus Gahleitner · Ansfelden, AT
Georg Grestenberger · Steyr, AT
Christelle Grein · Linz, AT
Cornelia Kock · Traun, AT

Key dates

Filing date	Jul 11, 2012
Grant date	Nov 8, 2016
Priority date	—
Expiry date	Mar 4, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2207/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Polyolefin composition comprising (a) a heterophasic propylene copolymer comprising a polypropylene (PP) having a melt flow rate MFR2 (230° C.) of 30 to 350 g/10 min, and an elastomeric propylene copolymer (E) having an intrinsic viscosity (IV) in the range of 1.5 to 3.0 dl/g and (b) a polyethylene having a melt flow rate MFR2 (190° C.) of 15 to 100 g/10 min, wherein (i) the total polyolefin composition has a melt flow rate MFR2 (230° C.) of more than 15 to 200 g/10 min, and (ii) the weight ratio of elastomeric propylene copolymer to the polyethylene is below 2.0.

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