Copolymers of ethylene with c3-c12 α-olefins

US6911516B1 · kind B1 · utility

Assignee

• Basell Polyolefine GmbH · DE

Inventors

• Shahram Mihan · Bad Soden, DE
• Dieter Lilge · Schifferstadt, DE
• Gunther Schweier · Osthofen, DE
• Markus Endres · Heidelberg, DE

Key dates

• Filing date: Aug 1, 2000
• Grant date: Jun 28, 2005
• Expiry date: Aug 1, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2420/01
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Copolymers of ethylene with C3-C12 α-olefin have a polydispersity Mw/Mn of ≦10, a density of from 0.85 to 0.95 g/cm3, a proportion of from 1 to 40% by weight of comonomer and a molar mass Mn above 150,000 g/mol and a comonomer composition distribution breadth index above 70%. A process for their preparation is described, as are their use and fibers, moldings, films and polymer mixtures comprising these copolymers.