摘要:
Lamination transfer films and methods for transferring a structured layer to a receptor substrate. The transfer films include a carrier substrate having a releasable surface, a sacrificial template layer applied to the releasable surface of the carrier substrate and having a non-planar structured surface, and a thermally stable backfill layer applied to the non-planar structured surface of the sacrificial template layer. The sacrificial template layer is capable of being removed from the backfill layer, such as via pyrolysis, while leaving the structured surface of the backfill layer substantially intact.
摘要:
A profiled extrusion replication process is disclosed that includes steps of (a) extruding a molten material through an extrusion die having at least one profiled die lip to form a molten extrudate having first and second major extrudate surfaces and having a first structural feature in the first major extrudate surface; (b) bringing the molten extrudate into contact with a tool surface comprising one or more second structural features so as to cause a portion of the first structural feature in the first major extrudate surface to contact the one or more second structural features on the tool surface; and (c) cooling the molten extrudate to provide the structured film. Structured films and apparatus for making structured films are also disclosed.
摘要:
A system and method for extrusion replication of microstructures to make microreplicated optical films. The system includes press roll and a replicating member. The replicating member includes a low thermal diffusivity material having a microreplicated outer surface or an organic material having a microreplicated outer surface. An inorganic conformal coating is disposed over the patterned outer surface of the organic or low thermal diffusivity material.
摘要:
Microneedle devices with microneedles having a truncated tapered shape are disclosed. The microneedles of microneedle devices may also have a controlled aspect ratio. Microneedle delivery apparatus are disclosed that include drivers designed to deliver microneedles at velocities that may enhance perforation of the stratum corneum while limiting the sensation of pain experienced at the delivery site.
摘要:
Herein is disclosed a plastic tape, comprising a backing with a first major side comprising a microstructured paint-retention pattern and a second major side that may comprise a microstructured hand-tear pattern and with a pressure-sensitive adhesive layer disposed on second major side of the backing; wherein the backing, the microstructured paint-retention pattern, and the microstructured hand-tear pattern (if present) all constitute a monolithic plastic unit.
摘要:
A co-extrusion method for making a replicated film. The method includes the steps of providing at least three materials and co-extruding them between a nip roll and a structured roll. The materials include a backside layer material, a core layer material, and a replicated layer material. The structured roll has a surface structure that is replicated onto the replicated layer, and the core layer is an internally conformable layer that conforms with the replicated layer.
摘要:
A new method of binding at least one article, and a new binding strap for use in binding an article or articles is taught. The new binding strap for preferred use in practicing the new method comprises an elongate base sheet having an array of parallel, narrowly spaced, elastically deformable ribs projecting integrally from the base sheet; the ribs comprising a stem portion attached to and substantially upright from the base sheet and a flange attached to at least one side of the stem portion and spaced from the base sheet; the array of ribs establishing a first fastening surface that can be pressed against and thereby interconnected with an identical fastening surface; the underside surface of the outer portion of at least some flanges projecting downwardly toward the base sheet; and the flange having a substantial thickness over most of its width such that the stem portion deforms in preference to the flange during peel-type disengagement from an identical fastening surface; and the strap having a length and width adapting the strap to be wrapped around one or more articles to apply a binding action on the article(s).
摘要:
A profiled extrusion replication process is disclosed that includes steps of (a) extruding a molten material through an extrusion die having at least one profiled die lip to form a molten extrudate having first and second major extrudate surfaces and having a first structural feature in the first major extrudate surface; (b) bringing the molten extrudate into contact with a tool surface comprising one or more second structural features so as to cause a portion of the first structural feature in the first major extrudate surface to contact the one or more second structural features on the tool surface; and (c) cooling the molten extrudate to provide the structured film. Structured films and apparatus for making structured films are also disclosed.
摘要:
A hand-tearable masking tape with a primary microstructured hand-tear pattern and at least one secondary hand-tear pattern oriented so that the tape exhibits multi-directional tear.