Double-wall paperboard containers having aqueous barrier coatings
OwnerJiebin Pang, Timothy R. McNeal +2inventors
InventorsJiebin Pang, Timothy R. McNeal, Natasha G. Melton, Brian K. Knapp
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Abstract
A coated paperboard container includes an inner paperboard substrate, an outer paperboard substrate, a first aqueous barrier coating located on the inner paperboard substrate, and a second aqueous barrier coating located on the outer paperboard substrate. The inner paperboard substrate and the outer paperboard substrate are coupled with an adhesive. The first aqueous barrier coating and the second aqueous barrier coating include a pigment and a binder and the first aqueous barrier coating is heat sealable.
Claims55
A coated paperboard container, comprising:
- an inner paperboard substrate;
- an outer paperboard substrate;
- a first aqueous barrier coating located on the inner paperboard substrate;
- and
- a second aqueous barrier coating located on the outer paperboard substrate.
A method of manufacturing a double-wall cup having an inner paperboard substrate coated with a first aqueous barrier coating and an outer paperboard substrate coated with a second aqueous barrier coating, the method comprising:
- forming a cup structure with the inner paperboard substrate;
- applying an adhesive to the cup structure;
- and
- overwrapping the cup structure with the outer paperboard substrate.
A double wall cup comprising:
- an inner paperboard substrate;
- an outer paperboard substrate;
- a first aqueous barrier coating located on the inner paperboard substrate;
- a second aqueous barrier coating located on the outer paperboard substrate;
- and
- an adhesive located between the inner paperboard substrate and the outer paperboard substrate.
Dependencies are inferred from the claim text.