Multi-layer containers

Details Multi-layer containers Multi-layer containers

1994-07-06

1995-11-07

Shoap, Allan N.

Bottles and jars

Multilayer barrier structure

220454, 215373, B65D 2302

Patent

active

054641063

ABSTRACT:
A multi-layer preform for forming multi-layer containers includes an extruded upper portion having a first thickness which is adapted to form an upper portion of a container. The preform also includes an extruded intermediate portion having a second thickness thicker than the first thickness. The intermediate portion is connected with the upper portion and is adapted to form an intermediate body portion of the container. The preform also includes an extruded base portion having a third thickness thicker than the second thickness. The base portion is connected with the intermediate portion and is adapted form a base portion of the container. The portions of the preform are preferably formed from an inner layer and a barrier layer wherein the layers are co-extruded for forming the preform and an outer injection molded layer. In one embodiment, the inner layer includes a lip which overlaps the top edge of the barrier and outer layers. A multi-layer container is then formable from blow molding the preform.

REFERENCES:
patent: 3719735 (1973-03-01), Valyi
patent: 3869056 (1975-03-01), Valyi
patent: 4079851 (1978-03-01), Valyi
patent: 4092391 (1978-05-01), Valyi
patent: 4149645 (1979-04-01), Valyi
patent: 4646925 (1987-03-01), Nohara
patent: 4741936 (1988-05-01), Nohara et al.
patent: 4755404 (1988-07-01), Collette
patent: 4980211 (1990-12-01), Kushida et al.
patent: 4991734 (1991-02-01), Nilsson et al.
patent: 5035931 (1991-07-01), Yamada et al.
patent: 5064080 (1991-11-01), Young et al.
patent: 5198248 (1993-03-01), Krishnakumar et al.

Affiliated with

Also associated with

Rating

Multi-layer containers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-layer containers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-layer containers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-192557