Stretched and foamed plastic container and method of producing the same
AssigneeToyo Seikan Kaisha, Ltd.
InventorsKentarou ICHIKAWA, Nobuhisa KOISO, Norio AKUZAWA
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Abstract
A foamed plastic container in which the cell diameters vary along a gradient so as not to decrease the content protection performance, in a manner quite different from the foamed cells distributed in the conventional foamed containers. The foamed plastic container has a container wall formed by using a plastic material and in which foamed cells are distributed, the lengths of the foamed cells in the surface direction of the container wall decreasing from the outer surface of the container toward the inner surface thereof.
Claims7
A stretched and foamed plastic container having a body wall equipped with a foamed region where foamed cells are distributed, wherein said foamed cells have a length gradient such that cell lengths in a stretched direction decrease from the foamed cells present on an outer surface side of the body wall toward the foamed cells present on an inner surface side of the body wall as compared in the same stretched direction.
Dependencies are inferred from the claim text.