Plastic containers having improved physical properties...

Details Plastic containers having improved physical properties... Plastic containers having improved physical properties...

B - Operations, Transporting

65

D

18/1074, 190/150

B65D 1/10 (2006.01) B29C 43/16 (2006.01) B29C 51/00 (2006.01) B29C 51/02 (2006.01) B29C 51/08 (2006.01) B29C 70/60 (2006.01) B32B 27/40 (2006.01) B65D 1/16 (2006.01)

Patent

CA 1045064

ABSTRACT OF THE DISCLOSURE Plastic containers having improved physical properties are prepared from a composite billet having an outer peripheral area composed of a thermoplastic resin and an inner central core portion composed of the thermoplastic resin modified with a material which imparts improved physical properties such as reduced gas permeability or increase stiffness or rigidity to the resin. The composite billet is molded into a container wherein the billet core is formed into the sidewalls and bottom of the container and the peripheral portion is formed into a flexible thermoplastic flange surrounding the open end of the container which can be doubled seamed to a metal end closure without fracture.

221469

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