Thermoplastic polyolefin compounds with decreased flaming sensitivity

US8846805B2 · kind B2 · utility

Assignee

• Borealis AG · AT

Inventors

• Claudia Kniesel · Linz, AT
• Erich Seitl · Leonding, AT
• Rudolf Wölfer · Linz, AT

Key dates

• Filing date: May 5, 2010
• Grant date: Sep 30, 2014
• Expiry date: May 5, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Thermoplastic polyolefin compounds for the production of injection molded, paintable and flame pre-treatable articles comprising A) 50 wt % to 90 wt % of a propylene homo- or copolymer matrix phase (M) and B) 10 wt % to 50 wt % of a first elastomer comprising an ethylene-C3-C6-alpha olefin copolymer rubber C) 0 wt % to 20 wt %, based on the total weight of A and B, of a second elastomer, component B) and C) forming a disperse phase (E) and D) >30 wt % up to 60 wt %, based on the total weight of components A, B and C, of an inorganic filler, if the intrinsic viscosity of the disperse phase (E) is <2.2 dl/g according to ISO 1628 (with decalin as solvent) or 0 wt % to <30 wt % based on the total weight of components A, B and C, of an inorganic filler, if the intrinsic viscosity of the disperse phase (E) is ≧2.2 dl/g according to ISO 1628 (with decalin as solvent).