B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
190/26.1
B29C 49/22 (2006.01) B29C 45/16 (2006.01) B29C 49/74 (2006.01)
Patent
CA 1232214
-24- PREFORM WITH INTERNAL BARRIER AND PRODUCTS MADE FROM THE SAME ABSTRACT OF THE DISCLOSURE This relates to laminated preforms, the method of forming such preforms and products which may be bene- ficially formed utilizing such preforms. Most particularly, this relates to a preform which has formed as part of the injection molding thereof two layers of barrier material which are disposed within two layers of thermoplastic resin and having received therebetween a solid core of thermoplastic resin. The specific method of forming the preform permits the barrier material layers to be of a greatly reduced thickness as compared to such layer thick- nesses permissible in the past, with the result that the barrier material layers in the blow molded articles are of a thickness recognized to be acceptable for the barrier function. The barrier material layers may be selectively terminated along the length of the preform so as to permit portions of the resultant blow molded article to be removed and reused. This abstract forms no part of the specification of this application and is not to be con- strued as limiting the claims of the application. * * * *
469653
Krishnakumar Suppayan M.
Nahill Thomas E.
Continental Plastic Containers Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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