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US 9,434,129 B2Granted
Dry adhesives
AssigneeMylan Group
InventorsMy T. Nguyen, Loc Vinh Bui
Life of this patent
Estimating the term…
Abstract
A dry adhesive comprising a micro-featured and nano-featured surface, and a compliant surface having a hardness of about 60 Shore A or less, the micro-featured and nano-featured surface and the compliant surface being capable of forming upon contact a dry adhesive bond with each other.
Claims25
A dry self-adhesive surface comprising at least two areas, wherein:
- a. at least one of said areas of the dry self-adhesive surface is a non-tacky micro-featured and nano-featured area, said micro-featured and nano-featured areas having micropores and nanopores, wherein said micropores and nanopores define a roughness average in amplitude (Ra) between about 0.2 μm and about 3.0 μm with a mean spacing of profile irregularities (RSm) between about 20 nm and about 2000 nm, and
- b. at least one other of said areas of the dry self-adhesive surface is a non-tacky compliant area having a hardness of about 60 Shore A or less,
- the micro-featured and nano-featured area and the compliant area being capable of forming upon contact a dry adhesive bond with each other in which the compliant area conforms with the topography of the microporous and nano-porous area resulting in a reversible interlock of the compliant area in the micropores and nanopores of said micro-featured and nano-featured area.
Dependencies are inferred from the claim text.