Polyolefine materials with improved adhesivity

US6583250B2 · kind B2 · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Paul Birnbrich · Solingen, DE
• Herbert Fischer · Goldkronach, DE
• Manfred Gorzinski · Düsseldorf, DE
• Thomas Huver · Goldkronach, DE

Key dates

• Filing date: Nov 20, 1998
• Grant date: Jun 24, 2003
• Expiry date: Feb 16, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L23/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The bondability of a polyolefin, particularly to cyanoacrylate adhesives, is improved by incorporating in the polyolefin a polymerization initiator capable of initiating the polymerization of the monomers constituting the cyanoacrylate adhesive. The polymerization initiator may, for example, be a sterically hindered nitrogen base and may be mixed with the polyolefin at a temperature above the polyolefin's glass transition temperature using, for example, co-extrusion or co-injection methods.