Non-delaminating multilayer container mouth
AssigneeDTL Technology Limited Partnership
InventorsMartin H. Beck, George F. Rollend
Life of this patent
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Abstract
A method of preventing delamination of multiple layers of an oriented polymer container having an opening defined by the multiple layers comprising a bi-axially oriented multilayer polymer container having an opening defined by a perimeter at which the multiple layers are exposed; heating the perimeter until workable; providing a curling die; feeding the multilayer perimeter into the curling die to curl the perimeter sufficiently to inhibit delamination of the layers and a container when so made.
Claims11
A method of preventing delamination of multiple layers of at least one polymer container having an opening defined by the multiple layers comprising the steps of:
- a) providing said container having a opening defined by a perimeter at which the multiple layers are at least partially exposed;
- b) heating said perimeter until workable:
- c) providing a curling device;
- and
- d) using said device to curl said perimeter sufficiently to inhibit delamination of the layers.
Dependencies are inferred from the claim text.