Patent · US Active

Polypropylene composition with excellent surface appearance

US11377543B2 · kind B2 · utility

0Cited by

1References

14Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Thomas Lummerstorfer · Linz, AT
Daniela Mileva · Linz, AT
Georg Grestenberger · Steyr, AT

Key dates

Filing date	Jun 21, 2018
Grant date	Jul 5, 2022
Priority date	—
Expiry date	Jun 25, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2312/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention is directed to a heterophasic polypropylene composition (HC) comprising a modified polypropylene composition (mPP), a process for preparing said heterophasic polypropylene composition (HC) and an article comprising said heterophasic polypropylene composition (HC). The present invention is further directed to the use of a composition comprising a peroxide (PO) and a crosslinking agent (CA) to reduce tigerskin of a polypropylene composition (PP).

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