Back to results
US 12,434,422 B2Granted
Container and method of manufacture
AssigneeRing Container Technologies, LLC
InventorsPaul Vincent Kelley, Michael Green, Douglas Miles Dygert, Daniel M. Futral
Life of this patent
Estimating the term…
Abstract
A method for manufacturing a container includes injecting a first material into a first mold to form a top portion of a preform. The first material and a second material are injected into the first mold to form a bottom portion of the preform. The preform is disposed in a second mold. The preform is blow molded into a finished container.
Claims21
A preform for forming a finished container, the preform comprising:
- an inner wall defining a volume configured to be filled with a product;
- an outer wall being in contact with atmosphere;
- a top section having only one layer;
- and
- a bottom section comprising an outer layer, an intermediate layer and an inner layer, the intermediate layer comprising an additive, the additive comprising an oxygen scavenger, the oxygen scavenger comprising polytetramethylene ether glycol,
- wherein the intermediate layer is biased towards a central axis of the preform from 10%-30% from the inner wall, and
- wherein the intermediate layer is 5% to 50% closer to the inner wall than the outer wall.
4 more elements
A preform for forming a finished container, the preform comprising:
- an inner wall that defines an inner wall of the finished container, the inner wall of the finished container defining a volume configured to be filled with a product;
- an outer wall that defines an outer wall of the finished container, the outer wall of the finished container being in contact with atmosphere;
- a top section having only one layer consisting of polyethylene terephthalate, the top section comprising a threaded neck;
- and
- a bottom section comprising an outer layer, an intermediate layer and an inner layer, the outer layer and the inner layer each consisting of polyethylene terephthalate, the intermediate layer consisting of polyethylene terephthalate and an oxygen scavenger, the oxygen scavenger comprising polytetramethylene ether glycol,
- wherein the intermediate layer is biased towards a central axis of the preform from 10%-30% from the inner wall,
- wherein the inner layer and the outer layer each have a first thickness, the intermediate layer having a second thickness that is less than the first thickness, and
- wherein the oxygen scavenger is present in the finished container in an amount between 0.1 wt. % and 5.0 wt. % of the finished container.
5 more elements
A preform for forming a finished container, the preform comprising:
- an inner wall that defines an inner wall of the finished container, the inner wall of the finished container defining a volume configured to be filled with a product;
- an outer wall that defines an outer wall of the finished container, the outer wall of the finished container being in contact with atmosphere;
- a top section having only one layer consisting of polyethylene terephthalate, the top section comprising a threaded neck;
- and
- a bottom section comprising an outer layer, an intermediate layer and an inner layer, the outer layer and the inner layer each consisting of polyethylene terephthalate, the intermediate layer consisting of an oxygen scavenger, the oxygen scavenger comprising polytetramethylene ether glycol,
- wherein the intermediate layer is biased towards a central axis of the preform from 10%-30% from the inner wall,
- wherein the inner layer and the outer layer each have a first thickness, the intermediate layer having a second thickness that is less than the first thickness, and
- wherein the oxygen scavenger is present in the preform in an amount between 0.1 wt. % and 5.0 wt. % of the preform.
5 more elements
A preform for forming a finished container, the preform comprising:
- an inner wall defining a volume configured to be filled with a product;
- an outer wall being in contact with atmosphere;
- a top section having only one layer;
- and
- a bottom section comprising an outer layer, an intermediate layer and an inner layer, the intermediate layer comprising an additive, the additive comprising an oxygen scavenger, the oxygen scavenger comprising polytetramethylene ether glycol,
- wherein the intermediate layer is biased towards a central axis of the preform from 10%-30% from the inner wall, and
- wherein the oxygen scavenger is 10-13% from the inner wall in a majority of the preform.
4 more elements
Dependencies are inferred from the claim text.