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AssigneeCrown Cork & Seal Technologies Corporation
InventorStephen W. Cornell
Estimating the term…
A blank (2) is molded for the manufacture of a multi-layer preform (1). The blank possesses protrusions (5). After the protrusions (5) have been brought to a plasticized state under the action of heat, those surfaces that contain protrusions (5) are covered by a layer of plasticized material. The blank (2) becomes connected to the layer (6) in the area of the protrusions (5). After cooling of the preform created from the blank (2) and the layer (6), the blank (2) will be connected with the layer (6) by means of microweld positions (7) in the area of the said protrusions (5). With that, delamination of the preform (1) during further processing or use-will be effectively prevented.
A method of manufacturing a multi-layer laminated preform made of a plastic comprising the steps of:
A preform made from a blank having one or more covering layers comprising:
A method of making a closeable container comprising the steps of:
A container having a mouth area, a cylindrical body connected to the mouth area, and a base connected to the body, said container comprising at least two layers wherein the adjacent surfaces of two layers engage with one another and form a connecting zone, said connecting zone being formed by a plurality of microweld positions.
Method of manufacturing a multi-laminated preform made of plastic, comprising the steps of
A method of making a closeable container comprising the steps of:
A preform made from a blank, having one or more covering layers, wherein the adjacent surfaces of two layers are bonded with one another in a connecting zone, said connecting zone being formed by a plurality of microweld positions.
Dependencies are inferred from the claim text.