Semicrystalline propylene polymer compositions with good suitability for producing biaxially oriented films

US6593442B2 · kind B2 · utility

Assignee

• Basell Polypropylen GmbH · DE

Inventors

• Wolfgang Bidell · Mutterstadt, DE
• Roland Hingmann · Ladenburg, DE
• Franz Langhauser · Bad Dürkheim, DE
• Dieter Lilge · Schifferstadt, DE
• Volker Rauschenberger · Eisenberg, DE
• Gunther Schweier · Osthofen, DE
• Florian Stricker · Heidelberg, DE
• Jürgen Suhm · Ludwigshafen, DE

Key dates

• Filing date: Dec 18, 2000
• Grant date: Jul 15, 2003
• Expiry date: Dec 25, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/905
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A semicrystalline propylene polymer composition with good suitability for producing biaxially oriented films and prepared by polymerizing propylene, ethylene and/or C4-C18-1-alkenes, where at least 50 mol % of the monomer units present arise from the polymerization of propylene. Also described is the use of the semicrystalline propylene polymer composition for producing films, fibers or moldings, the films, fibers and moldings made from these compositions, biaxially stretched films made from the semicrystalline propylene polymer compositions, and also a method for characterizing the semicrystalline propylene polymer compositions.