US 2009/0152151 A1 · PALLET CONTAINER, AND METHOD FOR PRODUCING AN ELECTROSTATICALLY NON-CHARGEABLE AND/OR ELECTRIC CHARGE-DRAINING PALLET CONTAINER

Abstract

A pallet container includes a bottom pallet, a lattice frame, and a multilayer inner container made of thermoplastic material by a blow-molding technique and received in the lattice frame, for storing and transporting liquid fill material. The inner container has an exterior layer which is configured to be incapable of permanently retaining an electrostatic charge by allowing electric charges to be drained. The exterior layer contains an antistatic compound and has a layer thickness which does not or only insubstantially change a transparency or translucency of the exterior layer, allowing easy optical detection of a fill level of the liquid fill material in the container. The exterior layer includes a fusible, easily stretchable thermoplastic material (polymer). At least one of a center layer and an interior layer of the multilayer container includes a cold-impact-resistant HDPE material (High Density Polyethylene) with a high molecular weight.

Claims20

Dependent claims

A pallet container, comprising:

a bottom pallet;
a lattice frame;
and
a multilayer inner container made of thermoplastic material by a blow-molding technique and received in the lattice frame, for storing and transporting liquid fill material, said inner container comprising an exterior layer configured to be incapable of permanently retaining an electrostatic charge by allowing electric charges to be drained, said exterior layer containing an antistatic compound and having a layer thickness which does not or only insubstantially change a transparency or translucency of the exterior layer, allowing easy optical detection of a fill level of the liquid fill material in the container, wherein the exterior layer comprises a fusible, easily stretchable thermoplastic material (polymer), and wherein at least one of a center layer and an interior layer of the multilayer container comprises a cold-impact-resistant HDPE material (High Density Polyethylene) with a high molecular weight.

1 more element

A blow-molding method for producing a cuboid multilayer container of thermoplastic material for a pallet container, for storing and transporting liquid fill material, said method comprising the steps of:

applying to the container an exterior layer incapable of permanently retaining an electrostatic charge by allowing electric charges to drain, and
adjusting a charge-retaining characteristic of the exterior layer by adding and admixing to the plastic material a limited quantity of a polymer-based compound and reducing a layer thickness of the compounded exterior layer so as to have a substantially unchanged transparency or translucency, thereby allowing easy optical detection of a fill level of the liquid fill material in the container,
wherein the exterior layer comprises a fusible, easily stretchable thermoplastic material (polymer), and wherein at least one of a center layer and an interior layer of the multilayer container comprises a cold-impact-resistant HDPE material (High Density Polyethylene) with a high molecular weight.

Dependencies are inferred from the claim text.

Pallet container, and method for producing an electrostatically non-chargeable and/or electric charge-draining pallet container

Life of this patent

Pallet container, and method for producing an electrostatically non-chargeable and/or electric charge-draining pallet container

Life of this patent

Abstract

Claims20