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US 2025/0018676 A1Published application
Polyester resin closures for containers
AssigneeOrigin Materials Operating, Inc.
InventorsJay Clarke Hanan, Rachel Hess
Life of this patent
Estimating the term…
Abstract
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.
Claims19
A polyester resin closure that mounts onto a finish of a container;
- the polyester resin closure comprising:
- (a) a plug seal configured to seal against an inner surface of the finish;
- (b) an annular wall configured to seat against a top surface of a rim of the finish;
- (c) an outer cylindrical wall extending downward from the annular wall, wherein the outer cylindrical wall comprises internal threads configured to engage with the finish;
- and
- (d) a tamper evidence feature configured to engage with a tamper evidence ledge of the finish;
- wherein the polyester resin comprises polyethylene terephthalate, polyethylene furandicarboxylate, or a copolymer of polyethylene terephthalate and polyethylene furandicarboxylate.
4 more elements
Dependencies are inferred from the claim text.