Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Producing multilayer work or article
Patent
1995-03-09
1997-10-07
Timm, Catherine
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Producing multilayer work or article
26417126, 26417127, 264250, 264279, B29C 4922
Patent
active
056744480
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: 3457337 (1969-07-01), Turner
patent: 3479422 (1969-11-01), Zavasnik
patent: 3587281 (1971-06-01), Lemelson
patent: 3719735 (1973-03-01), Valyi
patent: 3873660 (1975-03-01), Reilly et al.
patent: 3955697 (1976-05-01), Valyi
patent: 4741936 (1988-05-01), Nohara et al.
patent: 4755404 (1988-07-01), Collette
patent: 5443767 (1995-08-01), Cahill
Darr Richard C.
Slat William A.
Plastipak Packaging, Inc.
Timm Catherine
LandOfFree
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.
Profile ID: LFUS-PAI-O-2354240