Patent · US Active

Foamable polypropylene compositions

US11396593B2 · kind B2 · utility

0Cited by

0References

13Claims

0Family size

Assignee

Borealis AG · AT

Inventors

Daniela Mileva · Linz, AT
Susanne Kahlen · Leonding, AT
Patrick Rover · Linz, AT
Georg Grestenberger · Steyr, AT
Jingbo Wang · Linz, AT
Klaus Bernreitner · Linz, AT
Markus Gahleitner · Ansfelden, AT

Key dates

Filing date	Oct 2, 2019
Grant date	Jul 26, 2022
Priority date	—
Expiry date	Oct 2, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/24
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a polypropylene composition, an injection molded article comprising the polypropylene composition, a foamed article comprising the polypropylene composition as well as the use of a polypropylene homopolymer (H-PP1) for reducing the 5stiffness reduction factor of a foamed injection molded article by at least 40 as determined by the difference of the flexural modulus measured according to ISO 178 of the non-foamed and foamed injection molded article and compared to an article comprising the same amount of a polypropylene which has been polymerized in the presence of a Ziegler-Natta catalyst.

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