Barrier layer composition for plastic bodies

US6087422A · kind A · utility

Assignee

• COMPAGNIE PLASTIC OMNIUM SE · FR

Inventors

• Werner Probst · Salmünster, DE
• Peter Knobloch · Großaitingen, DE
• Christoph Roth · Bodenwerder, DE
• Hans-Jurgen Muller · Solms, DE

Key dates

• Filing date: Dec 1, 1998
• Grant date: Jul 11, 2000
• Expiry date: Dec 1, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2435/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention describes a barrier layer composition which is applied to at least one surface of a plastic body, preferably a polyolefin hollow body, having the following composition: PA1 (a) 35 to 75% by weight of an epoxide-containing or halogen- and epoxide-containing metal oxide sol; PA1 (b) 20 to 60% by weight of a fluorine- or sulfo-containing maleic acid hemi ester copolymer or a fluorine- or sulfo-containing maleic acid hemi amide copolymer having the general structural formula ##STR1## wherein M=vinyl monomer; X=oxygen, nitrogen; PA1 Y=--(CH.sub.2).sub.n --SO.sub.3 H, --(CH.sub.2).sub.n --F, --(CF.sub.2).sub.n --H; PA1 n=2 to 12; PA1 (c) 0.5 to 5% by weight of a catalyst based on one or more tertiary amines.