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US 2025/0026098 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.
Claims20
A method of making a closure that mounts onto a finish of a container;
- the closure comprising at least one layer that comprises:
- (a) an annular wall configured to seat against a top surface of a rim of the finish;
- and
- (b) an outer cylindrical wall extending downward from the annular wall;
- the method comprising thermoforming a sheet of a polyester resin into the closure.
2 more elements
Dependencies are inferred from the claim text.