US 2024/0198643 A1 · ORTHOPEDIC PACKAGING MATERIALS

Abstract

The present invention provides a packaging material comprising a first layer formed from a thermoplastic polyurethane (TPU) and a second layer formed from a heat-activated, olefin-based polymer coupling agent containing an ethylene-vinyl acetate (EVA) copolymer and a second polar co-monomer, wherein the packaging material has a total thickness of between 2 mil (50 μm) and 24 mil (600 μm), the first layer has a thickness of between 0.8 mil (20 μm) and 16 mil (400 μm), and the second layer has a thickness of between 0.8 mil (20 μm) and 8 mil (200 μm). The inventive packaging material may be used to provide thermoformed containers and trays for storing sharp, abrasive articles such as orthopedic devices including bone implants.

Claims20

Dependent claims

A packaging material comprising

a first layer formed from a thermoplastic polyurethane (TPU) and
a second layer formed from a heat-activated, olefin-based polymer coupling agent containing an ethylene-vinyl acetate (EVA) copolymer grafted with maleic anhydride, with the total amount of maleic anhydride not exceeding 5000 ppm and a second polar co-monomer selected from the group consisting of vinyl acetate, acrylic acid, acrylic acid esters, acrylic acid salts, methacrylic acid, methacrylic acid esters, and methacrylic acid salts,
wherein the packaging material has a total thickness of between 2 mil (50 μm) and 24 mil (600 μm), the first layer has a thickness of between 0.8 mil (20 μm) and 16 mil (400 μm), and the second layer has a thickness of between 0.8 mil (20 μm) and 8 mil (200 μm).

Dependencies are inferred from the claim text.

Orthopedic packaging materials

Life of this patent

Orthopedic packaging materials

Life of this patent

Abstract

Claims20