A dry adhesive microfiber array comprising a plurality of fibers with enlarged tips, where the dry adhesive is capable of adhering to a surface of a silicon wafer and/or carrier. The dry adhesive can be debonded without the use of chemicals or heat and does not leave a residue on the surface of the wafer. In addition, a liquid can be introduced to the interface between the dry adhesive and semiconductor device to adjust the force of adhesion.
09 - Appareils et instruments scientifiques et électriques
28 - Jeux, jouets, articles de sport
Produits et services
Eyewear; protective eyewear; protective eyewear and
components thereof; safety eyewear; sports eyewear; eyewear
accessories, namely, nose pads for eyewear, temple tips, and
temple sleeves; nose guards which can be worn by attachment
to eyewear such as sunglasses and ski goggles; nose pads for
eyewear; nose clips for divers and swimmers; ear buds;
wireless ear buds; protective ear covering shields; in-ear
monitors not for medical purposes; ear pads for headphones;
ear phones; protective sports helmet accessories that attach
to the helmets, namely, mouth guards, ear pads, throat
protectors, chin straps, face masks, jaw pads and eye
shields. Grips for sporting articles, namely, tennis racquets, squash
racquets, badminton racquets, racquetball racquets, paddle
tennis racquets, golf clubs, cricket bats, softball bats,
baseball bats, hockey sticks; handle grips for sporting
equipment, namely, tennis racquets, squash racquets,
badminton racquets, racquetball racquets, paddle tennis
racquets, golf clubs, cricket bats, softball bats, baseball
bats, hockey sticks; grip tapes for sporting equipment;
racket grip tapes; athletic tapes; hunting camouflage used
as hunting blinds; skateboard grip tapes.
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
Produits et services
Adhesive and high friction bands, rolls, pads, sheets,
laminates or surface textures made predominantly from
polymers, for industrial and commercial use.
09 - Appareils et instruments scientifiques et électriques
28 - Jeux, jouets, articles de sport
Produits et services
Eyewear; protective eyewear; protective eyewear and components thereof; safety eyewear; sports eyewear; eyewear accessories, namely, nose pads for eyewear, nose guards, temple tips, and temple sleeves; nose guards which can be worn by attachment to eyewear such as sunglasses and ski goggles; nose pads for eyewear; nose clips for divers and swimmers; ear buds; wireless ear buds; protective ear covering shields; in-ear monitors not for medical purposes; ear pads for headphones; ear phones; Protective sports helmet accessories that attach to the helmets, namely, mouth guards, ear pads, throat protectors, chin straps, face masks, jaw pads and eye shields Grips for sporting articles, namely, tennis racquets, squash racquets, badminton racquets, racquetball racquets, paddle tennis racquets, golf clubs, cricket bats, softball bats, baseball bats, hockey sticks; handle grips for sporting equipment, namely, tennis racquets, squash racquets, badminton racquets, racquetball racquets, paddle tennis racquets, golf clubs, cricket bats, softball bats, baseball bats, hockey sticks; grip tapes for sporting equipment; racket grip tapes; athletic tapes; camouflage tapes used in hunting; skateboard grip tapes
6.
Fibrillar structures to reduce viscous drag on aerodynamic and hydrodynamic wall surfaces
An aerodynamic or hydrodynamic wall surface has an array of fibrillar structures disposed on and extending from the wall surface, wherein each fibrillar structure comprises a stalk and a tip. The stalk has a first end and a second end, wherein the first end is attached to the wall surface, and the stalk is oriented with respect to the wall surface at a stalk angle between approximately 1 degrees and 179 degrees. The tip has a first side and a second side, wherein the first side is attached proximate to the second end of the stalk, the tip has a larger cross-sectional area than the stalk, and the second side comprises a substantially planar surface that is oriented with respect to the stalk at a tip angle between approximately 0 degrees and 90 degrees.
B64C 21/10 - Moyens permettant d'influencer l'écoulement d'air sur les surfaces des aéronefs en agissant sur la couche limite par utilisation d'autres caractéristiques de la surface, p. ex. la rugosité
B63B 1/36 - Autres moyens pour faire varier les caractéristiques hydrodynamiques inhérentes aux coques par réduction du frottement utilisant des moyens mécaniques
7.
Microfibers with mushroom-shaped tips for optimal adhesion
This invention identifies important geometric parameters of an adhesive microfiber with mushroom-shaped tip for improving and optimizing adhesive ability. The magnitude of pull-off stress is dependent on a wedge angle γ and the ratio of the tip radius to the stalk radius β of the mushroom-shaped fiber. Pull-off stress is also found to depend on a dimensionless parameter x, the ratio of the fiber radius to a length-scale related to the dominance of adhesive stress. Finally, the shape of edge tip, where the surface and sides of the mushroom-shaped tip join, is a factor that impacts strength of adhesion. Optimizing ranges for these parameters are identified.
An aerodynamic or hydrodynamic wall surface has an array of fibrillar structures disposed on and extending from the wall surface, wherein each fibrillar structure comprises a stalk and a tip. The stalk has a first end and a second end, wherein the first end is attached to the wall surface, and the stalk is oriented with respect to the wall surface at a stalk angle between approximately 1 degrees and 179 degrees. The tip has a first side and a second side, wherein the first side is attached proximate to the second end of the stalk, the tip has a larger cross-sectional area than the stalk, and the second side comprises a substantially planar surface that is oriented with respect to the stalk at a tip angle between approximately 0 degrees and 90 degrees.
B64C 21/10 - Moyens permettant d'influencer l'écoulement d'air sur les surfaces des aéronefs en agissant sur la couche limite par utilisation d'autres caractéristiques de la surface, p. ex. la rugosité
B64C 23/00 - Moyens permettant d'influencer l'écoulement d'air sur les surfaces des aéronefs, non prévus ailleurs
F15D 1/10 - Action sur l'écoulement des fluides autour de corps formés d'un matériau solide
9.
THE DESIGN OF MICROFIBERS WITH MUSHROOM-SHAPED TIPS FOR OPTIMAL ADHESION
This invention identifies important geometric parameters of an adhesive microfiber with mushroom-shaped tip for improving and optimizing adhesive ability. The magnitude of pull-off stress is dependent on a wedge angle γ and the ratio of the tip radius to the stalk radius β of the mushroom- shaped fiber. Pull-off stress is also found to depend on a dimensionless parameter x, the ratio of the fiber radius to a length- scale related to the dominance of adhesive stress. Finally, the shape of edge tip, where the surface and sides of the mushroom-shaped tip join, is a factor that impacts strength of adhesion. Optimizing ranges for these parameters are identified.
C09J 7/00 - Adhésifs sous forme de films ou de pellicules
B29C 41/30 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet pour la fabrication d'objets de longueur indéfinie en incorporant des éléments ou des couches préformées, p. ex. moulage autour d'inserts ou sur des objets à recouvrir
D02J 1/00 - Modification de la structure ou des propriétés résultant d'une structure particulièreModification, conservation ou restauration de la forme physique ou de la section transversale, p. ex. par utilisation de matrices ou de rouleaux presseurs
