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US 12,564,279 B2Granted
Lid
AssigneeDaiwa Can Company
InventorsKen Suzuki, Jun Shibata, Ayako Inumaru, Kyoko Suganuma
Life of this patent
Estimating the term…
Abstract
A lid for covering a cup-shaped drinking container, a resin forming the lid being a biodegradable resin, 50% by mass or more of the biodegradable resin having a deflection temperature under load of 80° C. or more, 5% by mass or more of the biodegradable resin having a flexural elastic modulus of 3000 MPa or more.
Claims15
A lid for covering an opening end of a cup-shaped drinking container and configured to be detachably fit to the cup-shaped drinking container having a curl portion at the opening end, the lid comprising:
- a disk-shaped top plate portion;
- and
- a cylindrical portion configured to detachably fit to the curl portion, the cylindrical portion being integral with the top plate portion along an entire periphery of the top plate portion,
- a resin forming the lid being a biodegradable resin, 50% by mass or more of the biodegradable resin having a deflection temperature under load of 80° C. or more, 5% by mass or more of the biodegradable resin having a flexural elastic modulus of 3000 MPa or more,
- the lid including the top plate portion and the cylindrical portion being constituted by one component.
2 more elements
Dependencies are inferred from the claim text.