Disposable pressware prepared from wax-infused paperboard

Details Disposable pressware prepared from wax-infused paperboard Disposable pressware prepared from wax-infused paperboard

2011-07-19

2011-07-19

Elkins, Gary E (Department: 3782)

Envelopes, wrappers, and paperboard boxes

Paperboard box

Box material includes a coating or a nonpaperboard...

C229S406000, C229S407000, C428S034200

Reexamination Certificate

active

07980450

ABSTRACT:
A disposable servingware container press-formed from paperboard includes (a) a bottom panel; (b) an annular transition portion; and (c) an outer portion extending upwardly and outwardly with respect to the transition portion, the container having an outer surface and an inner surface distal to the outer surface, the inner surface being adapted as a serving surface. The paperboard is infused with a wax composition on one side thereof in an amount of at least 3 lbs of wax per 3000 ft2ream such that the paperboard is partially saturated with wax and has a wax-enriched layer proximate one side thereof and a layer undersaturated with wax proximate the other side thereof.

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