B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 1/00 (2006.01)
Patent
CA 2692461
The technical problems of this invention are to overcome a limitation in the aspect of the shape of conventional synthetic resin double containers comprising an inner container and an outer container and to solve a problem of additional steps required to assemble the outer and inner containers. A principle means taken to solve these problems comprises a double container made by a direct blow molding process wherein a space is formed between the outer layer and the inner layer made of synthetic resins that are mutually non--adherent, thus allowing both layers to be left in a detached state due to a difference in mold shrinkage factors between the two layers during the direct blow molding step.
L'invention porte sur un double contenant en résine synthétique constitué par un contenant intérieur et un contenant extérieur, dont les problèmes classiques, tels que des limitations de la configuration et la nécessité d'avoir une étape d'assemblage, sont résolus. Comme moyen principal pour résoudre les problèmes, on propose un double contenant obtenu par le procédé de moulage par soufflage direct, comportant une couche externe et une couche interne en résines synthétiques non-adhérentes l'une à l'autre et, interposé entre celles-ci, un entrefer est formé par la séparation due à une différence de rétraction de moulage entre la couche externe et la couche interne dans un moulage par soufflage direct.
Fetherstonhaugh & Co.
Yoshino Kogyosyo Co. Ltd.
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