Polyolefin foam materials of high dimensional stability at elevated temperatures

US6225366A · kind A · utility

Assignee

• Borealis AG · AT

Inventors

• Manfred Raetzsch · Kirchschlag, AT
• Hartmut Bucka · Staprijk, AT
• Achim Hesse · Dresden, DE
• Ulf Panzer · Ansfelden, AT
• Norbert Reichelt · Ansfelden, AT

Key dates

• Filing date: May 7, 1998
• Grant date: May 1, 2001
• Expiry date: May 7, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2203/14
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polyolefin foam materials of high dimensional stability at elevated temperatures are produced from modified polypropylenes and unmodified polypropylenes. The modified polypropylenes used are produced by mixing polypropylene particles with thermally decomposing free radical-forming agents, absorbing readily volatile bifunctional monomers and heating and melting the mixture. Areas of application for the polyolefin foam materials of high dimensional stability at elevated temperatures are the packaging sector, motor vehicle parts, sports and leisure equipment, industrial applications, as well as applications in the building sector.