Modifiers based on ethylenes or amorphous olefin elastomers for reducing the surface tack of amorphous polypropylenes

US6187869A · kind A · utility

Assignee

• Borealis G.m.b.H. · AT

Inventors

• Markus Gahleitner · Ansfelden, AT
• Hermann Heinemann · Steyr, AT
• Norbert Hafner · Linz, AT
• Christian Paulik · Linz, AT

Key dates

• Filing date: Apr 21, 1999
• Grant date: Feb 13, 2001
• Expiry date: Apr 21, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L23/16
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Modifiers based on high-pressure polyethylenes or low-pressure ethylene copolymers or highly amorphous olefin elastomers or mixtures of these with polyethylenes or isotactic polypropylenes are added to highly amorphous polypropylenes to reduce their surface tack.