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US 2012/0267368 A1Published application
Disposable lid having polymer composite of polyolefin and mineral filler
AssigneePactiv Corporation
InventorsWen Pao WU, Alan H. Forbes
Life of this patent
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Abstract
Disposable lid comprises a thermoformed sheet in the shape of a lid for a hot beverage container. The sheet comprises a polymer composite of a polyolefin and at least one mineral filler. The sheet has a thickness less than about 0.035 inches and a heat deflection temperature at least comparable to that of high impact polystyrene.
Claims25
A disposable lid comprising:
- a thermoformed sheet in the shape of a lid for a hot beverage container, the sheet comprising a polymer composite of a polyolefin and at least one mineral filler;
- wherein the sheet has a thickness less than about 0.035 inches and a heat deflection temperature at least comparable to that of high impact polystyrene.
Dependencies are inferred from the claim text.