Polypropylene composition for exterior automotive applications

US12209178B2 · kind B2 · utility

Assignee

• Borealis AG · AT

Inventors

• Daniela Mileva · Linz, AT
• Susanne Kahlen · Leonding, AT
• Angelica Maëlle Delphine Legras · Linz, AT
• Hermann Braun · Eislingen/Fils, DE
• Christophe Salles · Courbevoie, FR

Key dates

• Filing date: Jun 7, 2022
• Grant date: Jan 28, 2025
• Expiry date: Jun 7, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/62
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A composition suitable for automotive application obtainable by blending at least components (A), (B), (C) and (D): (A) 15 wt.-% to 50 wt.-%, preferably 18 to 44 wt.-%, more preferably 20 to 40 wt.-% of a mixed-plastics polypropylene blend; (B) 20 wt.-% to 50 wt.-%, preferably 22 to 47 wt.-%, more preferably 25 to 45 wt.-% of a heterophasic propylene copolymer; (C) 5 wt.-% to 25 wt.-%, preferably 7 to 23 wt.-%, more preferably 10 to 22 wt.-% of an ethylene-based plastomer and (D) 5 wt.-% to 25 wt.-%, preferably 7 to 22 wt.-%, more preferably 10 to 20 wt.-% of an inorganic filler.