Blow-molded container that is peelably laminated

Details Blow-molded container that is peelably laminated Blow-molded container that is peelably laminated

2005-12-20

2005-12-20

Weaver, Sue A. (Department: 3727)

Bottles and jars

Multilayer barrier structure

C215S385000, C215S902000, C220S495040, C220S676000, C220S723000, C220S913000

Reexamination Certificate

active

06976600

ABSTRACT:
A blow-molded container of this invention comprises: an outer layer (11) of a synthetic resin, which forms the outer shell of a finite shape; an inner layer (12) of a flexible synthetic resin, which is peelably laminated with the outer layer (11) and forms an inner bag; and a pair of restricted zones (15) of a vertical broad strip type, which is formed axisymmetrically on the central axis of container (1) to adhere and fix the outer layer (11) and the inner layer (12) over the entire height and is located so as to avoid the positions of air introduction ports (7) that have been provided in the outer layer (11) to introduce air into the void between the outer layer (11) and the inner layer (12). At least one of the restricted zones (15) comprises two or more adhesive zones (14) of the vertical strip type, which are parallel to each other. In this configuration, a container of the delaminated type is provided, which has a sufficiently high mechanical strength at the bottom and which can be molded in an ordinary mold at a high rate of productivity. This invention also provides a container of the squeezable type, which has uniform, favorable squeezability, no strange feel to the touch, and a less deteriorated outer appearance caused by the provision of adhered zones.

REFERENCES:
patent: 4372455 (1983-02-01), Cochran
patent: 5513761 (1996-05-01), Kobayashi et al.
patent: 2004/0069735 (2004-04-01), Yoneyama et al.
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patent: U-7-22951 (1995-04-01), None
patent: A-8-26241 (1996-01-01), None
patent: A-8-216238 (1996-08-01), None
patent: 9-77136 (1997-03-01), None
patent: 2000-16469 (2000-01-01), None
patent: A-2000-16459 (2000-01-01), None

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