Polyolefine parts and foils with permanently improved surface properties

US6107406A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Paul Birnbrich · Solingen, DE
• Ulrike Driessen · Kempen, DE
• Manfred Gorzinski · Düsseldorf, DE
• Herbert Fischer · Goldkronach, DE
• Martin Schaefer · Gebenstorf, CH
• Joerg-Dieter Klamann · Bremerhaven, DE

Key dates

• Filing date: Jun 5, 1998
• Grant date: Aug 22, 2000
• Expiry date: Jun 5, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31913
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polyolefine-based mouldings and foils contain internal bonding additives which are enriched by migration at the plastic surface and which have their molecular structure bonding substituents of higher polarity on an oleophilic hydrocarbon radical. At least one part of these internal additives is hardened via its hydrocarbon radicals in the area of the plastic surface and prevented from further migrating, and so permanent adhesive bondings and/or coatings of the polyolefine surface may be obtained without additional preliminary treatments. Also disclosed is a process for furnishing solid polyolefine surfaces with such adherence-improving, immobilised additive (mixtures), and other auxiliary agents used for that purpose.