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US 12,145,816 B2Granted
Continuous manufacturing of surface wrinkle features
AssigneeThe Trustees of the University of Pennsylvania
InventorsDaeyeon Lee, Kathleen Stebe, Shu Yang, Xu Zhang
Life of this patent
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Abstract
Provided are systems and methods for inducing strain fields to give rise to controllable wrinkle patterns in a variety of substrates. Also provided are articles having persistent wrinkling patterns thereon.
Claims8
A method, comprising:
- (a) with a working material that comprises an elastomeric material and a second material that defines the uppermost portion of the working material,
- effecting a stress within the working material, the effecting being accomplished by transiently contacting the elastomeric material to a continuously revolving, curved support substrate,
- at least partially releasing the stress within the working material so as to give rise to a plurality of persistent wrinkles in the uppermost portion of the working material, or
- (b) applying a stimulus so as to change a mechanical property of an uppermost portion of a working material that comprises an elastomeric material,
- effecting a stress within the working material, the effecting being accomplished by transiently contacting the elastomeric material to a continuously revolving, curved support substrate, and
- at least partially releasing the stress within the working material so as to give rise to a plurality of persistent wrinkles in the uppermost portion of the working material;
- or
- (c) any combination of (a) or (b).
5 more elements
Dependencies are inferred from the claim text.