Soft polypropylene composition with soft touch feeling

US9309393B2 · kind B2 · utility

Assignee

• Borealis Technology Oy · FI

Inventors

• Klaus Bernreitner · Linz, AT
• Tung Pham · Paris, FR
• Espen Ommundsen · Langesund, NO
• Pirjo Jaaskelainen · Porvoo, FI

Key dates

• Filing date: Oct 1, 2008
• Grant date: Apr 12, 2016
• Expiry date: Oct 12, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2312/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Propylene polymer composition comprising a polypropylene (A), an elastomeric copolymer (B) of ethylene and at least one α-olefin comonomer selected form the group consisting of propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene and 1-octene, and an ethylene C2 to C8 alkyl acrylate copolymer (C) wherein the composition has a strain hardening SH3.0/2.5 (at a Hencky strain rate of 3 s−1) of at least 0.5.