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US 10,377,112 B2Granted
Membranes and uses therof
AssigneeNIKE, Inc.
InventorsYihua Chang, Richard L. Watkins
Life of this patent
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Abstract
Membranes and methods for producing them are disclosed. The membranes comprise a core layer comprising a composite of alternating thermoplastic polyurethane (TPU) and barrier microlayers, and they comprise at least one cap layer that is bonded to the core layer or a structural layer. In some embodiments, at least the cap layer comprises a polydiene polyol-based TPU. The membrane may further comprise a rubber layer bonded to the cap layer.
Claims21
A membrane comprising:
- (a) a core layer comprising a composite of alternating thermoplastic polyurethane (TPU) microlayers and barrier microlayers;
- and
- (b) at least one cap layer bonded to the core layer;
- wherein the at least one cap layer comprises a first polydiene polyol-based TPU and a cure package.
1 more element
Dependencies are inferred from the claim text.