Transparent and colored container
AssigneeSonoco Development, Inc.
InventorsSubir Dey, J. Morrow
Life of this patent
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AssigneeSonoco Development, Inc.
InventorsSubir Dey, J. Morrow
Estimating the term…
The present invention provides a container having an improved clarity and color. The container includes a multi-layered wall. The wall may have one or more polypropylene layers, one or more ethylene-vinyl alcohol layers, and one or more tie layers. The tie layers include an adhesive or adhesive mixture for bonding adjacent polypropylene and ethylene-vinyl alcohol layers. The adhesive mixture may include a mixture of polypropylene and maleated polypropylene. Polypropylene in one or more of the layers including the tie layers may be of a clarified grade. A colorant may be added to one or more of the layers. For example, a transparent polymeric colorant may be added to one or more of the polypropylene layers. A dye may be added to a polypropylene layer wherein adjacent ethylene-vinyl alcohol layers inhibit the dye from migrating out of the polypropylene layer.
A multi-layered container having improved clarity and color and defining an interior, the container having a wall comprising:
A multi-layered container having improved clarity and color and defining an interior, the container having a wall comprising:
A multi-layered container having improved clarity and color, the container having a wall comprising:
A multi-layered container having improved clarity and color, the container having a wall comprising:
Dependencies are inferred from the claim text.