Containers
AssigneeRhone-Poulenc Agriculture Ltd.
InventorsDavid B. Edwards, Alan J. Aldred
Life of this patent
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Abstract
A container suitable for hazardous liquids such as agrochemical concentrates comprises an outer shell (I) made from a compressed fiber material, typically recycled biodegradable material, having an associated barrier (3) comprising a water soluble or water dispersible polymeric material. The container is stackable. A method of making the container, and of testing the coating for leaks, is also described.
Claims19
A container comprising a moulded outer shell made from a compressed fibre material the material comprising a water soluble or water dispersible polymeric material to render the shell resistant to a hazardous chemical product when contained therein and/or the shell having at least an inner surface thereof provided with a closely adherent coating comprising a water soluble or water dispersible polymeric material which is resistant and impermeable to a hazardous chemical product when contained therein.
A method of making a container which comprises providing a moulded outer shell made from a compressed fibre material with an inner coating by passing a liquid comprising a water soluble or water dispersible polymeric material through a spray nozzle having its outlet mounted to rotate inside the shell such that a coating of the polymeric material is formed on the inner surface of the shell, the coating being resistant to a hazardous chemical product when contained in the container.
Dependencies are inferred from the claim text.