US 10,384,851 B2Granted

Composite foamed container

AssigneeToyo Seikan Group Holdings, Ltd.

InventorsKentarou Ichikawa, Norio Akuzawa, Nobuhisa Koiso, Hiroki Iino

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Abstract

A composite foamed container forming, in the body portion, thereof, a foamed region in which foamed cells are distributed, the foamed region including a first gradationally foamed region A having a gradational distribution of the foamed cells of which the length in the direction of maximum stretch gradationally decreasing from the outer surface side of the body portion toward the inner surface side thereof and a second gradationally foamed region having a gradational distribution of the foamed cells of which the length in the direction of maximum stretch gradationally decreasing from the inner surface side of the body portion toward the outer surface side thereof. The container has a large resistance against the pressure exerted on the outer surface, good liquid-dispelling property and, at the same time, has improved appearance and heat resistance.

Claims5

Dependent claims

A composite foam container comprising, in a body portion thereof, a foamed region in which foamed cells are distributed, said foamed region including

a first gradationally foamed region having a gradational distribution of the foamed cells wherein the length of the foamed cells in a direction of maximum stretch gradationally decreases from an outer surface of the body portion toward an inner surface thereof,
wherein in the first gradationally foamed region, the foamed cells having the largest length in the direction of maximum stretch are positioned in the outer surface of the body portion, and the foamed cells having the smallest length in the direction of maximum stretch are positioned in the inner surface of the body portion, and
a second gradationally foamed region having a gradational distribution of the foamed cells wherein the length of the foamed cells in the direction of maximum stretch gradationally decreases from the inner surface of the body portion toward the outer surface thereof,
wherein in the second gradationally foamed region, the foamed cells having the largest length in the direction of maximum stretch are positioned in the inner surface of the body portion, and the foamed cells having the smallest length in the direction of maximum stretch are positioned in the outer surface of the body portion.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 14/784,753Filed 25 Apr 2014
Priority: JP 2013-0967592 May 2013
Published: US 2016/0083167 A124 Mar 2016
Granted: 20 Aug 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

B65D 81/022
Specially adapted to protect contents from mechanical damage: containers made of shock-absorbing material
B29C 49/0005
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor: characterised by the material
B29C 49/6454
Characterised by temperature differential: through the preform thickness
B65D 81/3839
Rigid container in the form of a bottle, jar or like container: formed of foam material