04609516 is referenced by 69 patents and cites 28 patents.

This relates to laminated preforms, the method of forming such preforms and products which may be beneficially 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 thicknesses 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 is not to be construed as limiting the claims of the application.

Title
Method of forming laminated preforms
Application Number
6/581409
Publication Number
4609516
Application Date
February 17, 1984
Publication Date
September 2, 1986
Inventor
Thomas E Nahill
Salem
NH, US
Suppayan M Krishnakumar
Nashua
NH, US
Agent
Charles E Brown
Assignee
Continental Pet Technologies
CT, US
IPC
B29C 49/22
B29C 45/16
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