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US 2025/0018674 A1Published application
Polyester resin closures for containers
AssigneeOrigin Materials Operating, Inc.
InventorsJay Clarke Hanan, Rachel Hess
Life of this patent
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Abstract
spell Thermoformed polyester resin closures for closing containers, the polyester resins including polyethylene terephthalate (“PET”), polyethylene furandicarboxylate (“PEF”), or a copolymer including PET and PEF, are provided herein. Methods of making the thermoformed closures are further provided. Methods of sterilizing the thermoformed closures are further provided.
Claims24
A polyester resin closure that mounts onto a finish of a container, the polyester resin closure comprising:
- (a) an outer layer that comprises:
- (i) an outer layer annular wall;
- and
- (ii) an outer layer outer cylindrical wall that extends downwardly from the outer layer annular wall, wherein the outer layer outer cylindrical wall comprises a plurality of knurls;
- (b) an inner layer that comprises:
- (i) an inner layer annular wall;
- and
- (ii) an inner layer outer cylindrical wall that extends downwardly from the inner layer annular wall, wherein an inner surface of the inner layer outer cylindrical wall comprises internal threads configured to engage with the finish;
- (c) a tamper evidence feature that engages with a tamper evidence ledge of the finish.
6 more elements
Dependencies are inferred from the claim text.