Plastic Omnium Gmbh

Few Forschungs- Und Entwicklungsgesellschaft Wolfen Mbh

Werner Probst

Christoph Roth

Hans-Jurgen Muller

Peter Knobloch

Frank Apsel

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:

Barrier layer composition for plastic bodies

The present invention refers to a barrier layer composition which is to be applied to at least one surface of a polyolefin body, in particular a polyolefin hollow body, wherein the composition contains: a) 40-70% by weight of one or more epoxide-containing metal oxide sols; b) 25-55% by weight of a binding agent polymer consisting of a terpolymer of maleic acid-maleic anhydride-vinyl monomers and/or a copolymer of maleic acid-vinyl monomers having a composition by mole of 50-75% of a vinyl monomer, 5-50% of maleic acid, and 0-20% of maleic anhydride; and c) 0.1-5% by weight of a catalyst on the basis of one or more tertiary amines. The hollow bodies coated with the barrier layer can be used particularly as storage containers for organic substances, in particular for organic solvents, fuels, mineral oils, pesticides, and other substances, for example liquids, the diffusion of which is to be inhibited or at least essentially reduced.

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Munich, Georgia

Werner Probst