Masking tape with multi-directional hand tear

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.

Structured lamination transfer films and methods

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.

Microstructured tape comprising coextensive, intersecting paint-retention and hand-tear patterns

Tape backings with a first major side and an oppositely-facing second major side, wherein the first major side includes coextensive, intersecting microstructured paint-retention and hand-tear patterns; and, tapes including such backings, and methods of making and using such tapes and tape backings.

DUAL-SIDED STRUCTURED FILM ARTICLES

Film articles with dual-sided structures are ones in which both of the major surfaces of the film have a structured surface. The structured film articles have a first major surface and second major surface, where each surface has a plurality of spaced apart protrusions forming a repeating pattern. Each repeating pattern has a major axis, where the major axis is one of the major axes in the translational direction of the repeating pattern. The major axis of the repeating pattern on the second major surface forms an oblique angle with the major axis on the first major surface, where the angle is in the range of 10-90% of the angle of rotational symmetry of the repeating pattern. The structured film is a unitary substrate. The structured film articles are prepared by providing a flowable material composition having two major surfaces and simultaneously contacting the major surfaces with a first microstructuring tool, and a second microstructuring tool. Each microstructuring tool has a structured surface including a pattern of a plurality of depressions. 1. A structured substrate comprising:a first major surface and second major surface, wherein the first major surface and the second major surface each comprise a plurality of spaced apart protrusions forming a repeating pattern, each repeating pattern having a major axis, wherein the major axis comprises one of the major axes in the translational direction of the repeating pattern, and wherein the major axis of the repeating pattern on the second major surface forms an oblique angle with the major axis on the first major surface, wherein the angle is in the range of 10-90% of the angle of rotational symmetry of the repeating pattern, and wherein the structured substrate is a unitary substrate.2. The structured substrate of claim 1 , wherein the repeating pattern on the first major surface and/or the second major surface comprise any periodic geometric pattern.3. The structured substrate of claim 2 , wherein the periodic ...

Microneedle devices and microneedle delivery apparatus

Microneedle devices (10) with microneedles (30) 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.

Profiled Extrusion Replication

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. 1. A process for making a structured film , comprising 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 at least one of the second structural features on the tool surface; and(c) cooling the molten extrudate to provide the structured film;wherein a ratio of a cross-web cross-sectional area of the first structural feature to a cross-web cross-sectional area of a second structural feature is about 1.0.2. The process of wherein extruding a molten material comprises extruding the molten material vertically downward and into contact with the tool surface.3. The process of claim 1 , wherein extruding a molten material comprises extruding one or more thermoformable materials selected from the group consisting of a polyolefin claim 1 , an olefin-containing polymer claim 1 , and combinations of two or more of the ...

STRUCTURED LAMINATION TRANSFER FILMS AND METHODS

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. 1. A lamination transfer film for use in transferring a structured layer , comprising:a carrier substrate having a releasable surface;a sacrificial template layer having a first surface applied to the releasable surface of the carrier substrate and having a second surface opposite the first surface, wherein the second surface comprises a non-planar structured surface; anda thermally stable backfill layer applied to the second surface of the sacrificial template layer, wherein the backfill layer has a structured surface corresponding with and applied to the non-planar structured surface of the sacrificial template layer,wherein the sacrificial template layer is capable of being removed from the backfill layer while leaving the structured surface of the backfill layer substantially intact.2. The lamination transfer film of claim 1 , wherein the carrier substrate is thermally stable.3. The lamination transfer film of claim 1 , wherein the backfill layer is a planarizing layer.4. The lamination transfer film of claim 1 , wherein the backfill layer comprises a bilayer of two different materials.5. The lamination transfer film of claim 4 , wherein one of the bilayers comprises an adhesion promoting layer.6. A lamination transfer film for use in transferring an embedded structured layer claim 4 , comprising:a carrier substrate having a releasable surface;a sacrificial ...

MASKING TAPE WITH MULTI-DIRECTIONAL HAND TEAR

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. 1. A hand-tearable masking tape , comprising: wherein the first major side of the backing comprises a primary microstructured hand-tear pattern comprising a multiplicity of primary lines of weakness at least some of which comprise a long axis that is oriented within plus or minus 10 degrees of the transverse axis of the backing,', 'and wherein the first or second major side of the backing comprises a first secondary microstructured hand-tear pattern comprising a multiplicity of first secondary lines of weakness at least some of which comprise a long axis that is oriented at an included angle of about 25 degrees to about 90 degrees relative to the long axis of the primary lines of weakness,, 'a plastic backing comprising a longitudinal axis and a transverse width and axis, and comprising a first major side and an oppositely-facing second major side;'}and,a pressure-sensitive adhesive disposed on the first or second major side of the backing.2. The tape of wherein the first or second major side of the backing comprises a second secondary microstructured hand-tear pattern comprising a multiplicity of second secondary lines of weakness at least some of which comprise a long axis that is oriented at an included angle of about 25 to about 65 degrees relative to the long axis of the primary lines of weakness claim 1 , and that is oriented at an included angle of about 50 degrees to about 90 degrees relative to the long axis of the first secondary lines of weakness of the first secondary hand-tear pattern.3. The tape of wherein the primary lines of weakness are oriented within plus or minus five degrees of the transverse axis of the backing claim 2 , wherein the first secondary lines of weakness are oriented at an included angle of about 40 to about 50 degrees relative to the long axis of the ...

Microstructured Tape Comprising Coextensive, Intersecting Paint-Retention and Hand-Tear Patterns

Tape backings with a first major side and an oppositely-facing second major side, wherein the first major side includes coextensive, intersecting microstructured paint-retention and hand-tear patterns; and, tapes including such backings, and methods of making and using such tapes and tape backings. 1. A hand-tearable plastic tape , comprising; wherein the first major side of the backing comprises a microstructured paint-retention pattern comprising microreceptacles that are at least partially defined by a multiplicity of first microstructured partitions and a multiplicity of second microstructured partitions at least some of which intersect with first microstructured partitions to define microreceptacles thereby;', 'wherein the microstructured paint-retention pattern and the microstructured hand-tear pattern are coextensive and intersecting with each other;', 'wherein the first major side of the backing also comprises a microstructured hand-tear pattern comprising a multiplicity of lines of weakness at least some of which comprise a long axis that is oriented at least generally transversely to the backing,'}, 'and wherein a pressure-sensitive adhesive is disposed on the second major side of the backing., 'a plastic backing comprising a longitudinal axis and a transverse width and axis, and comprising a first major side and an oppositely-facing second major side,'}2. The tape of wherein at least some of the lines of weakness are continuous lines of weakness each comprising a continuous groove that extends across the entire transverse width of the first side of the backing.3. The tape of wherein at least some of the continuous lines of weakness comprise a long axis that is oriented within plus or minus 5 degrees of the transverse axis of the backing.4. The tape of wherein at least some of the continuous grooves comprise sidewalls comprising a textured surface.5. The tape of wherein at least some of the lines of weakness are discontinuous lines of weakness that extend ...

POLYLACTIC ACID POLYMER BASED FILM COMPRISING A STRUCTURED SURFACE AND ARTICLES

Presently described are polylactic acid polymer based films comprising a structured surface and articles. In one embodiment, the film comprises a semicrystalline polylactic acid polymer; a second polymer such as polyvinyl acetate polymer having a glass transition temperature (Tg) of at least 25° C.; and plasticizer. Articles are also described such as a tape or sheet, comprising the structured PLA-based film and a layer of (e.g. pressure sensitive) adhesive disposed on the film. In some embodiments, the tape or sheet further comprises a low adhesion backsize or a release liner. The article can be suitable for various end-uses. In one embodiment, the tape is a paint masking tape. In another embodiment, the tape is a floor marking tape. 1. A film comprisinga semicrystalline polylactic acid polymer;polyvinyl acetate polymer having a Tg of at least 25° C.;plasticizer; andwherein the film comprises a structured surface.2. The film of wherein the structured surface comprises a base film layer and structures disposed on a major surface of the base film layer claim 1 , wherein the base film layer is integral with the structures.3. The film of wherein the structured surface comprises a plurality of peak structures claim 1 , a plurality of valleys structures claim 1 , or a combination thereof.4. The film of wherein the structured surface is a matte structured surface claim 1 , a paint-retention structured surface claim 1 , a hand-tear structured surface claim 1 , or a combination thereof.5. The film of wherein the polyvinyl acetate polymer has a molecular weight ranging from 75 claim 1 ,000 g/mol to 750 claim 1 ,000 g/mol.6. The film of wherein the polyvinyl acetate polymer has a viscosity ranging from 10 to 50 mPa*s when the polyvinyl acetate polymer is dissolved in a 10% ethyl acetate solution at 20° C.7. The film of wherein the polyvinyl acetate polymer has a glass transition temperature no greater than 50 or 45° C.8. The film of wherein the polyvinyl acetate polymer is ...

Lightguide

A lightguide having opposing first and second major surfaces where the first major surface includes a plurality of extended features and a plurality of discrete features is described. The lightguide has a viewable area having a length at least 100 times a thickness of the lightguide. The extended features extend in a first in-plane direction across at least 90 percent of the length L of the viewable area. The discrete features are spaced apart along the length and width of the viewable area. The discrete features may be disposed in spaces between the extended features. The discrete features may have faces extending between and connecting adjacent extended features.

LIQUID COATING METHOD AND APPARATUS WITH A DEFORMABLE METAL ROLL

Methods and apparatuses for applying liquid coatings are provided. A first roll (), a second roll (), and a nip () formed between the first and second rolls are provided. A coating liquid () is supplied to the nip. The coating liquid is smoothed, via the nip, into a substantially uniform layer () of liquid coating which is transferred to a substrate (). The second roll () includes a thin metal shell () and a resilient layer (), the thin metal shell encases the resilient layer therebeneath, and the thin metal shell is capable of deflecting in unison with the resilient layer such that the thin metal shell is elastically deformable at the nip when in contact with the first roll (). 1. A method , comprising:providing a first roll, a second roll, and a nip formed between the first and second rolls;supplying a coating liquid to the nip; andsmoothing the coating liquid, via the nip, into a substantially uniform layer of liquid coating,wherein the first roll comprises a thin metal shell and a resilient layer, the thin metal shell encases the resilient layer therebeneath, and the thin metal shell is capable of deflecting in unison with the resilient layer such that the thin metal shell is elastically deformable at the nip when in contact with the second roll, andwherein the layer of liquid coating is transferred to a substrate.2. The method of claim 1 , wherein the layer of liquid coating on the substrate has a thickness no greater than about 5 microns.3. The method of claim 1 , wherein the thin metal shell is configured to be removable from the first roll.4. The method of claim 1 , wherein the first roll further comprises a rigid central core claim 1 , and the resilient layer has substantially uniform thickness about the periphery of the rigid central core.5. The method of claim 1 , wherein the substrate is a web of indefinite length claim 1 , and the method further comprises wrapping the web around one of the first and second rolls.6. The method of claim 1 , further ...

DUAL-SIDED STRUCTURED FILM ARTICLES

Film articles with dual-sided structures are ones in which both of the major surfaces of the film have a structured surface. The structured film articles have a first major surface and second major surface, where each surface has a plurality of spaced apart protrusions forming a repeating pattern. Each repeating pattern has a major axis, where the major axis is one of the major axes in the translational direction of the repeating pattern. The major axis of the repeating pattern on the second major surface forms an oblique angle with the major axis on the first major surface, where the angle is in the range of 10-90% of the angle of rotational symmetry of the repeating pattern. The structured film is a unitary substrate. The structured film articles are prepared by providing a flowable material composition having two major surfaces and simultaneously contacting the major surfaces with a first microstructuring tool, and a second microstructuring tool. Each microstructuring tool has a structured surface including a pattern of a plurality of depressions. 1. A method of preparing an article comprising:providing a flowable material composition comprising a first major surface and secondmajor surface;providing a first microstructuring tool, the first microstructuring tool comprising a structured surface comprising a pattern comprising a plurality of depressions;providing a second microstructuring tool, the second microstructuring tool comprisinga structured surface comprising a pattern comprising a plurality of depressions; andsimultaneously contacting the first microstructuring tool to the first major surface ofthe flowable material composition and contacting the second microstructuring tool tothe second major surface of the flowable material composition to form structured firstand second major surfaces on the flowable material composition, wherein thestructured first major surface and the structured second major surface each comprise aplurality of spaced apart ...

NEGATIVE PRESSURE WOUND THERAPY ARTICLE WITH FEATURES

An article, including a network of interconnected polymeric strands; wherein each of the interconnected polymeric strands has a first surface adapted to contact a tissue site; wherein at least one of the interconnected polymeric strand has a plurality of features extending from the first surface of the interconnected polymeric strands; wherein only one of any two adjacent polymeric strands has a plurality of features extending from the first surface of the interconnected polymeric strands; and wherein at least one of the interconnected polymeric strands is non-linear; and a plurality of openings between adjacent interconnected polymeric strands. 1. An article , comprising:a network of interconnected polymeric strands; wherein each of the interconnected polymeric strands has a first surface adapted to contact a tissue site; wherein at least one of the interconnected polymeric strand has a plurality of features extending from the first surface of the interconnected polymeric strands; wherein only one of any two adjacent polymeric strands has a plurality of features extending from the first surface of the interconnected polymeric strands; and wherein at least one of the interconnected polymeric strands is non-linear; anda plurality of openings between adjacent interconnected polymeric strands.2. The article of claim 1 , wherein at least one of the interconnected polymeric strands is linear.3. The article of claim 1 , wherein the network comprises alternating non-linear polymeric strands and linear polymeric strands.4. The article of claim 1 , wherein the non-linear polymeric strand has a sinusoidal curve.5. The article of claim 1 , wherein the tensile strength of the article parallel to x direction is greater than the tensile strength of the article parallel to y direction.6. The article of claim 1 , wherein the tensile strength of the article parallel to x direction is more than 2.23 Mpa.7. The article of claim 1 , wherein the polymeric strands comprises an ...

Substrate Comprising High and Low Gloss Areas with a Physical Microstructure Superimposed Thereon

Polymeric substrates with a first major side including first, high-gloss areas and also including second, low-gloss areas that comprise a molded textured surface, the first and second areas being provided on the first major surface in a predetermined pattern; and wherein the first major side of the substrate further includes at least one physical microstructure that is superimposed on the first, high-gloss areas and on the second, low-gloss areas. 1. A polymeric substrate comprising a first major side with a first major surface comprising:first, high-gloss areas; and, 'the first and second areas being provided on the first major surface in a predetermined pattern;', 'second, low-gloss areas that comprise a molded textured surface that cause the second, low-gloss areas to have a gloss that is lower than the gloss of the first, high-gloss areas,'}and,wherein the first major side of the substrate further comprises at least one physical microstructure that is superimposed on the first, high-gloss areas and on the second, low-gloss areas.2. The substrate of wherein the second claim 1 , low-gloss areas comprise an 85 degree gloss that is less than about 10 gloss units.3. The substrate of wherein the first claim 1 , high-gloss areas comprise an 85 degree gloss that is greater than about 40 gloss units.4. The substrate of wherein the second claim 1 , low-gloss areas comprise an 85 degree gloss that is lower than the gloss of the first claim 1 , high-gloss areas by at least about 10 gloss units.5. The substrate of wherein the first claim 1 , high-gloss areas comprise a surface roughness Rof less than 0.05 microns.6. The substrate of wherein the second claim 1 , low-gloss areas comprise a surface roughness Rof greater than 0.8 microns.7. The substrate of wherein the first claim 1 , high-gloss areas collectively form first claim 1 , high-gloss macroscopic regions on the first side of the substrate claim 1 , and wherein the second claim 1 , low-gloss areas collectively form ...

GRIPPING MATERIALS

Various embodiments disclosed relate to an article. The article includes a first layer defining a first major surface of the article. The first layer includes a plurality of protrusions extending outwardly from the first major surface. The protrusions comprise an elastic polymer component. The article further includes a second layer opposite the first layer, which at least partially defines a second major surface of the article. The first layer is disposed over a range of about 5% surface area of the second layer to about 99% surface area of the second layer. The first layer and the second layer are in direct contact. 115-. (canceled)16. The method of claim 21 , wherein the elastic polymer component comprises one or more polymers chosen from a polyurethane claim 21 , a styrene-ethylene-butylene-styrene block copolymer claim 21 , a styrene-isoprene-styrene block copolymer claim 21 , or mixtures thereof.17. The method of claim 21 , wherein the elastic polymer component comprises one or more polymers chosen from a polypropylene claim 21 , a polycarbonate claim 21 , a polyurethane claim 21 , polyethylene claim 21 , polyamide claim 21 , polyester claim 21 , polyester terephthalate claim 21 , glycol-modified polyethylene terephthalate claim 21 , copolymers thereof claim 21 , or mixtures thereof.18. The method of claim 21 , wherein forming the first assembly includes extrusion or hot-pressing.19. The method of claim 21 , wherein attaching the second layer to the first layer of the first assembly comprises at least one of hot-pressing the second layer to the first layer claim 21 , adhering the second layer to the first layer claim 21 , and sewing the second layer to the first layer.20. The method of claim 21 , further comprising removing the support film to expose the plurality of protrusions.21. A method of making an article claim 21 , the method comprising: a support film having an extrusion surface and a back surface opposite the extrusion surface, and a plurality of ...

Polymeric multilayer film with openings

Polymeric multilayer films having an array of openings extending between the first and second major surfaces of the film, and a thickness greater than 50 micrometers, wherein the openings each have a series of areas through the openings from the first and second major surfaces ranging from minimum to maximum areas, and wherein the minimum area is not at at least one of the major surfaces. Polymeric multilayer films described herein are useful, for example, for wound dressings and graphics films.

STRUCTURED LAMINATION TRANSFER FILMS AND METHODS

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. 1. A method for transferring a structured layer to a permanent receptor , comprising the steps of: a carrier substrate having a releasable surface;', 'a sacrificial template layer having a first surface applied to the releasable surface of the carrier substrate and having a second surface opposite the first surface, wherein the second surface comprises a non-planar structured surface; and', 'a thermally stable backfill layer applied to the second surface of the sacrificial template layer, wherein the backfill layer has a structured surface corresponding with and applied to the non-planar structured surface of the sacrificial template layer and wherein the thermally stable backfill layer includes, polysilazanes, silsesquioxanes of bridge or ladder-type, T-resin methyl silsesquioxane, T-Q resin methyl silsesquioxane, hydrogen silsesquioxane, copolymer of methyltrimethoxysilane and bistriethoxysilylethane, polyimides or benzocylclobutenes;, 'providing a lamination transfer film, comprisingapplying the lamination transfer film to a permanent receptor with the backfill layer applied to the permanent receptor;removing the carrier substrate while leaving at least a portion of the sacrificial template layer on the backfill layer; andremoving the sacrificial template layer from the backfill layer while leaving the structured surface of the backfill layer substantially ...

Negative Pressure Wound Therapy Article with Features

An article, including a network of interconnected polymeric strands; wherein each of the interconnected polymeric strands has a first surface adapted to contact a tissue site and a second surface opposite the first surface; wherein at least one of the interconnected polymeric stand has a plurality of features extending from the first surface of the interconnected polymeric strands; wherein at least one of the interconnected polymeric strands is non-linear; a plurality of openings between adjacent interconnected polymeric strands; an adhesive layer in contact with the second surface of the interconnected polymeric strands; and a filler in contact with the adhesive layer, the adhesive layer in between the network of interconnected polymeric strands and the filler; wherein the article is a negative pressure wound therapy article. 1. An article , comprising:a network of interconnected polymeric strands; wherein each of the interconnected polymeric strands has a first surface adapted to contact a tissue site and a second surface opposite the first surface; wherein at least one of the interconnected polymeric strand has a plurality of features extending from the first surface of the interconnected polymeric strands; wherein at least one of the interconnected polymeric strands is non-linear;a plurality of openings between adjacent interconnected polymeric strands;an adhesive layer in contact with the second surface of the interconnected polymeric strands; anda filler in contact with the adhesive layer, the adhesive layer in between the network of interconnected polymeric strands and the filler;wherein the article is a negative pressure wound therapy article.2. The article of claim 1 , wherein at least one of the interconnected polymeric strands is linear.3. The article of claim 1 , wherein the network comprises alternating non-linear polymeric strands and linear polymeric strands.4. The article of claim 1 , wherein the non-linear polymeric strand has a sinusoidal curve.5. ...

Privacy film

The present invention pertains to privacy film that can be used with documents. The privacy film has a light transmissive, polymeric base sheet that has opposing first and second surfaces. A plurality of light directing elements protrudes from the first surface of the base sheet. The base sheet can be constructed of a first polymeric material. The light directing elements can be constructed of a second polymeric material. The first and second polymeric material may be the same material. The light directing elements are substantially constant in its cross-section dimension and disposed substantially parallel to each other.

Negative pressure wound therapy article with features

An article, including a network of interconnected polymeric strands; wherein each of the interconnected polymeric strands has a first surface adapted to contact a tissue site and a second surface opposite the first surface; wherein at least one of the interconnected polymeric strand has a plurality of features extending from the first surface of the interconnected polymeric strands; wherein at least one of the interconnected polymeric strands is non-linear; a plurality of openings between adjacent interconnected polymeric strands; an adhesive layer in contact with the second surface of the interconnected polymeric strands; and a filler in contact with the adhesive layer, the adhesive layer in between the network of interconnected polymeric strands and the filler; wherein the article is a negative pressure wound therapy article.

Masking tape with multi-directional hand tear

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.

Microstructured tape comprising coextensive, intersecting paint-retention and hand-tear patterns

Tape backings with a first major side and an oppositely-facing second major side, wherein the first major side includes coextensive, intersecting microstructured paint-retention and hand-tear patterns; and, tapes including such backings, and methods of making and using such tapes and tape backings.

Structured lamination transfer films and methods

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.

Substrate comprising high and low gloss areas with a physical microstructure superimposed thereon

Polymeric substrates with a first major side including first, high-gloss areas and also including second, low-gloss areas that comprise a molded textured surface, the first and second areas being provided on the first major surface in a predetermined pattern; and wherein the first major side of the substrate further includes at least one physical microstructure that is superimposed on the first, high-gloss areas and on the second, low-gloss areas.

Liquid coating method and apparatus with a deformable metal roll

Methods and apparatuses for applying liquid coatings are provided. A first roll (14), a second roll (16), and a nip (146) formed between the first and second rolls are provided. A coating liquid (22) is supplied to the nip. The coating liquid is smoothed, via the nip, into a substantially uniform layer (22a) of liquid coating which is transferred to a substrate (12). The second roll (16) includes a thin metal shell (40) and a resilient layer (30), the thin metal shell encases the resilient layer therebeneath, and the thin metal shell is capable of deflecting in unison with the resilient layer such that the thin metal shell is elastically deformable at the nip when in contact with the first roll (14).

Microstructured tape

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.

Surface inspection systems

A surface inspection system has a light beam repetitively scanning a surface and a receiver located to receive light specularly (directly) reflected. The receiver has an enclosure with a wall containing a plurality of slits by which reflected light can reach a detector in the enclosure. The slits are arranged to cause the detector to produce a series of pulses throughout the scan, each pulse providing an instantaneous picture of the surface gloss in terms of an intensity distribution, the half width of each pulse is measured to give an indication of any variation from the half width of the distribution for a known surface gloss.

Optical article and method of making

Disclosed herein is an optical article having a top layer with a structured surface that collimates light, a core layer secured to the top layer opposite the structured surface, and a bottom layer secured to the core layer opposite the top layer. Either the top layer or the core layer includes a first extrudable polymer having a flexural modulus of greater than 2.5 GPa, and the other layer includes a second extrudable polymer having a flexural modulus of 2.5 GPa or less, an impact strength of greater than about 40 J/m, and tensile elongation at break of greater than about 5%. The bottom layer includes a third extrudable polymer. The bottom layer of the optical article may be structured to diffuse light. One or two optical articles may be secured to an optical film such as a polarizer film. Methods and display devices are also disclosed herein.

Discrimination circuit arrangements

A discrimination circuit operable to discriminate between an input signal in the form of a pedestal and disturbance signals superimposed thereon has an A-D converter to digitize a disturbance-free reference pedestal signal, circulating shift register to store the digitized reference signal, a D-A converter to produce a pedestal signal from the reference signal, a controlling clock to shift the reference signal in the store in synchronism with the incoming signal such that the two pedestal signals are available together, and a comparator to compare the reference signal with the input signal to produce an output caused by differences due to disturbances. The circuit forms part of an optical surface inspection apparatus.

Profiled extrusion replication

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.

Masking tape with multi-directional hand tear

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.

Detection of blemishes on surfaces

Microcut patterned transfer articles

A transfer article includes a carrier layer releasable at a release value of from 2 to 50 grams/inch from a release layer including a metal layer or a doped semiconductor layer. A functional layer overlies the carrier layer, and the functional layer includes at least one microcut inorganic layer. The microcut inorganic layer includes a pattern of cut toolmarks and plates bounded by the toolmarks, wherein each of the plates has a thickness of about 3 nanometers to about 2000 nanometers. The transfer article has a thickness of less than 3 micrometers.

Liquid coating method and apparatus with a deformable metal roll

Methods and apparatuses for applying liquid coatings are provided. A first roll (14), a second roll (16), and a nip (146) formed between the first and second rolls are provided. A coating liquid (22) is supplied to the nip. The coating liquid is smoothed, via the nip, into a substantially uniform layer (22a) of liquid coating which is transferred to a substrate (12). The second roll (16) includes a thin metal shell (40) and a resilient layer (30), the thin metal shell encases the resilient layer therebeneath, and the thin metal shell is capable of deflecting in unison with the resilient layer such that the thin metal shell is elastically deformable at the nip when in contact with the first roll (14).

Microstructured tape comprising coextensive, intersecting paint-retention and hand-tear patterns.

Soportes de cintas con un primer lado principal y un segundo lado principal orientado en sentido opuesto, en donde el primer lado principal incluye patrones microestructurados de retención de pintura y corte a mano que se intersecan y son de la misma extensión; y cintas que incluyen esos soportes, así como métodos para fabricar y usar esas cintas y soportes de cintas.

Optical article and method of making

Disclosed herein is an optical article having a top layer with a structured surface that collimates light, a core layer secured to the top layer opposite the structured surface, and a bottom layer secured to the core layer opposite the top layer. Either the top layer or the core layer includes a first extrudable polymer having a flexural modulus of greater than 2.5 GPa, and the other layer includes a second extrudable polymer having a flexural modulus of 2.5 GPa or less, an impact strength of greater than about 40 J/m, and tensile elongation at break of greater than about 5%. The bottom layer includes a third extrudable polymer. The bottom layer of the optical article may be structured to diffuse light. One or two optical articles may be secured to an optical film such as a polarizer film. Methods and display devices are also disclosed herein.

Microneedle devices and microneedle delivery apparatus

Microneedle devices and methods for delivering non-therapeutic substances are disclosed. The device includes at least one microneedle (30) projecting from a substrate (22), where the microneedle is tapered from the base (34) to a flat tip (32) having an area between 20 and 250 square micrometers. The device is forced against skin to provide perforations and a non-therapeutic substance is applied to the perforated area.

Microstructured tape comprising coextensive, intersecting paint-retention and hand-tear patterns

Tape backings with a first major side and an oppositely-facing second major side, wherein the first major side includes coextensive, intersecting microstructured paint-retention and hand-tear patterns; and, tapes including such backings, and methods of making and using such tapes and tape backings.

Microstructured tape.

Se describe en la presente una cinta plástica, que comprende un respaldo con un primer lado mayor que comprende un patrón de retención de pintura microestructurado y un segundo lado mayor que puede comprender un patrón de desgarre manual microestructurado, y con una capa de adhesivo sensible a la presión colocada sobre el segundo lado mayor del respaldo, en donde el respaldo, el patrón de retención de pintura microestructurado y el patrón de desgarre manual microestructurado (si está presente) todos constituyen una unidad plástica monolítica.

Micro-cut patterned article and method of making same

A patterned article includes a carrier layer having a microstructured first major surface and an opposing second major surface. The first major surface includes pluralities of upper and lower edges spaced apart along a thickness direction of the carrier layer and defining respective upper and lower portions of the first major surface. The lower portion is disposed between the upper portion and the second major surface. The article includes a first functional layer disposed on the lower, but not the upper, portion of the first major surface. The first functional layer includes at least one first micro-cut inorganic layer including a plurality of cut edges substantially coextensive with the plurality of lower edges. A method of making the patterned article is provided. Articles that can be made by transferring a functional layer from the patterned article are provided.

Privacy film

The present invention pertains to privacy film that can be used with documents. The privacy film has a light transmissive, polymeric base sheet that has opposing first and second surfaces. A plurality of light directing elements protrudes from the first surface of the base sheet. The base sheet can be constructed of a first polymeric material. The light directing elements can be constructed of a second polymeric material. The first and second polymeric material may be the same material. The light directing elements are substantially constant in its cross-section dimension and disposed substantially parallel to each other.

Profiled extrusion replication

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.

profiled extrusion replication

replicação por extrusão perfilada. a presente invenção refere-se a um processo de replicação por extrusão perfilada que inclui as etapas de (a) extrusão de um material fundido através de uma matriz de extrusão que tem pelo menos um rebordo de matriz perfilado para formar um extrudado fundido que tem uma primeira e segunda superfícies extrudadas principais e que tem uma primeira característica estrutural na primeira superfície extrudada principal, (b) colocação do extrudado fundido em contato com uma superfície de uma ferramenta que compreende uma ou mais segundas características estruturais de modo a fazer com que uma porção da primeira característica estrutural na primeira superfície extruturada principal entre em contato com as uma ou mais segundas características estruturais na superfície da ferramenta, e (c) resfriamento do extrudado fundido para fornecer o filme estrudado. também são apresentados filmes estruturados e um aparelho para produção de filmes estruturados. replication by profiled extrusion. The present invention relates to a profiled extrusion replication process comprising the steps of (a) extruding a molten material through an extrusion die having at least one profiled die edge to form a melt extrudate having a first and second major extruded surfaces and having a first structural feature on the first major extruded surface, (b) contacting the molten extrudate with a surface of a tool comprising one or more second structural features to cause a portion of the first structural feature on the first major extruded surface contact one or more second structural features on the tool surface, and (c) cooling the molten extrudate to provide the molten film. Structured films and an apparatus for producing structured films are also presented.

Articles including a microstructured curved surface, tooling articles, and methods

The present disclosure provides a microstructured article including a thermoplastic polymer shaped to have a curve. At least a portion of the curve includes a microstructured surface of utilitarian discontinuities and the microstructured surface includes peak structures and adjacent valleys. The peak structures and the curve are formed of a single piece of the thermoplastic polymer. A method of making the microstructured articles is also provided including a) obtaining a tool shaped to include at least one of a protrusion or a concavity; b) disposing a microstructured film on at least a portion of the tool including the protrusion and/or the concavity; and c) thermoforming a single piece of thermoplastic polymer onto the tool to form a microstructured article shaped to include a curve. The curve is an inverse of the protrusion or the concavity of the tool.

Microcut patterned transfer articles

A transfer article includes a carrier layer releasable at a release value of from 2 to 50 grams/inch from a release layer including a metal layer or a doped semiconductor layer. A functional layer overlies the carrier layer, and the functional layer includes at least one microcut inorganic layer. The microcut inorganic layer includes a pattern of cut toolmarks and plates bounded by the toolmarks, wherein each of the plates has a thickness of about 3 nanometers to about 2000 nanometers. The transfer article has a thickness of less than 3 micrometers.

Vacuum molding roll sleeve and methods of making and using the same

A vacuum molding roll sleeve (100, 700, 800)comprises a body (119, 818, 819) comprising a mold wall portion (120, 820) disposed between a molding surface (110, 1210, 710, 810) and at least one vacuum surface (130, 830). The molding surface (110, 1210, 710, 810) has shaped depressed features and has first openings (112, 812) disposed therein at first predetermined positions (134). Each first opening (112, 812) is spaced apart from the at least one vacuum surface (130, 830) by a respective minimum thickness (135, 835). The at least one vacuum surface (130, 830) has second openings (132, 832) disposed therein at second predetermined positions (134). The first openings (112, 812) are fluidly connected to the second openings (132, 832) by conduits (140, 840) wherein, on a respective basis, at least some of the conduits (140, 840) are longer than the minimum thickness (135, 835) between the first openings (112, 812) and the vacuum surface (130, 830). The vacuum molding roll sleeve (100, 700, 800) is configured such that at least partial vacuum can be applied to the first openings (112, 812) through the conduits (140, 840) fluidly connected thereto. The vacuum molding roll sleeve (100, 700, 800) is mountable on a backup roll (737). Methods of making and using the vacuum molding sleeve are also disclosed.

Wiederverschliessbarer bündelungsriemen mit klettverschluss

Microcut patterned transfer articles

A transfer article includes a carrier layer releasable at a release value of from 2 to 50 grams/inch from a release layer including a metal layer or a doped semiconductor layer. A functional layer overlies the carrier layer, and the functional layer includes at least one microcut inorganic layer. The microcut inorganic layer includes a pattern of cut toolmarks and plates bounded by the toolmarks, wherein each of the plates has a thickness of about 3 nanometers to about 2000 nanometers. The transfer article has a thickness of less than 3 micrometers.

Retroreflective article comprising multiple layers that differ in reflectivity

A retroreflective article including a binder layer and a plurality of retroreflective elements. Each retroreflective element includes a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements include a first layer that is disposed between the transparent microsphere and the binder layer and a second layer that is disposed between the transparent microsphere and the binder layer. At least one of the first layer and the second layer is a reflective layer; and, the first reflective layer and the second reflective layer differ in reflectivity. For at least some of the retroreflective elements, at least a portion of the second reflective layer is positioned in-parallel to the first reflective layer.

Travelling wave velocity modulation devices

Liquid coating method and apparatus with a deformable metal roll

Methods for registration of circuit dies and electrical interconnects

A method includes placing an electronic device on a pliable mating surface on a major surface of a mold such that at least one contact pad on the electronic device presses against the pliable mating surface. The pliable mating surface is on a microstructure in an arrangement of microstructures on the major surface of the mold. A liquid encapsulant material is applied over the electronic device and the major surface of the mold, and then hardened to form a carrier for the electronic device. The mold and the carrier are separated such that the microstructures on the mold form a corresponding arrangement of microchannels in the carrier, and at least one contact pad on the electronic device is exposed in a microchannel in the arrangement of microchannels. A conductive particle-containing liquid is deposited in the microchannel, which directly contacts the contact pad exposed in the microchannel.

Methods for registration of circuit dies and electrical interconnects

A method includes placing an electronic device on a pliable mating surface on a major surface of a mold such that at least one contact pad on the electronic device presses against the pliable mating surface. The pliable mating surface is on a microstructure in an arrangement of microstructures on the major surface of the mold. A liquid encapsulant material is applied over the electronic device and the major surface of the mold, and then hardened to form a carrier for the electronic device. The mold and the carrier are separated such that the microstructures on the mold form a corresponding arrangement of microchannels in the carrier, and at least one contact pad on the electronic device is exposed in a microchannel in the arrangement of microchannels. A conductive particle-containing liquid is deposited in the microchannel, which directly contacts the contact pad exposed in the microchannel.

Self-mating reclosable binding strap and fastener

A new binding strap (10) comprises an elongate base sheet (18) having an array of parallel, narrowly spaced, elastically deformable ribs (19) projecting integrally from the base sheet; the ribs (19) comprising a stem portion (21) attached to and substantially upright from the base sheet and a flange (22, 23) 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). Fasteners having a fastening surface structure as described are also disclosed.

Self-mating reclosable mechanical fastener and binding strap

A new binding strap (10) comprises an elongate base sheet (18) having an array of parallel, narrowly spaced, elastically deformable ribs (19) projecting integrally from the base sheet; the ribs (19) comprising a stem portion (21) attached to and substantially upright from the base sheet and a flange (22, 23) 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). Fasteners having a fastening surface structure as described are also disclosed.

Micro-cut patterned article and method of making same

A patterned article includes a carrier layer having a microstructured first major surface and an opposing second major surface. The first major surface includes pluralities of upper and lower edges spaced apart along a thickness direction of the carrier layer and defining respective upper and lower portions of the first major surface. The lower portion is disposed between the upper portion and the second major surface. The article includes a first functional layer disposed on the lower, but not the upper portion of the first major surface. The first functional layer includes at least one first micro-cut inorganic layer including a plurality of cut edges substantially coextensive with the plurality of lower edges. A method of making the patterned article is provided. Articles that can be made by transferring a functional layer from the patterned article are provided.

Optical film replication on low thermal diffusivity tooling with conformal coating

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.

Optical film replication on low thermal diffusivity tooling with conformal coating

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.

Methods for registration of circuit dies and electrical interconnects

A method includes placing an electronic device on a pliable mating surface on a major surface of a mold such that at least one contact pad on the electronic device presses against the pliable mating surface. The pliable mating surface is on a microstructure in an arrangement of microstructures on the major surface of the mold. A liquid encapsulant material is applied over the electronic device and the major surface of the mold, and then hardened to form a carrier for the electronic device. The mold and the carrier are separated such that the microstructures on the mold form a corresponding arrangement of microchannels in the carrier, and at least one contact pad on the electronic device is exposed in a microchannel in the arrangement of microchannels. A conductive particle-containing liquid is deposited in the microchannel, which directly contacts the contact pad exposed in the microchannel.

Electric travelling wave amplifiers

Vacuum molding roll sleeve and methods of making and using the same

A vacuum molding roll sleeve (100, 700, 800)comprises a body (119, 818, 819) comprising a mold wall portion (120, 820) disposed between a molding surface (110, 1210, 710, 810) and at least one vacuum surface (130, 830). The molding surface (110, 1210, 710, 810) has shaped depressed features and has first openings (112, 812) disposed therein at first predetermined positions (134). Each first opening (112, 812) is spaced apart from the at least one vacuum surface (130, 830) by a respective minimum thickness (135, 835). The at least one vacuum surface (130, 830) has second openings (132, 832) disposed therein at second predetermined positions (134). The first openings (112, 812) are fluidly connected to the second openings (132, 832) by conduits (140, 840) wherein, on a respective basis, at least some of the conduits (140, 840) are longer than the minimum thickness (135, 835) between the first openings (112, 812) and the vacuum surface (130, 830). The vacuum molding roll sleeve (100, 700, 800) is configured such that at least partial vacuum can be applied to the first openings (112, 812) through the conduits (140, 840) fluidly connected thereto. The vacuum molding roll sleeve (100, 700, 800) is mountable on a backup roll (737). Methods of making and using the vacuum molding sleeve are also disclosed.

Structured films having acoustical absorbance properties

Structured films having acoustical absorbance properties are disclosed. Methods of making and using the structured films are also disclosed.

Multilayer polymer film, method, and articles suitable for thermoforming

A method of making a thermoformed article is described comprising providing a multilayer film in a thermoforming apparatus, wherein the multilayer film comprises a) a first film comprising a thermoplastic structured surface comprising peaks and valleys; and b) a second protective film comprising second structures that contact the peaks and fill the valleys of the thermoplastic structured surface of the first film. The method further comprises thermoforming the first film into an article at a thermoforming temperature while the second protective film is in contact with the thermoplastic structured surface of the first film. In typical embodiments, the method further comprising removing the second structured protective film from the thermoformed article after thermoforming. Also described is a thermoformed article, a method of (e.g. insert) injection molding, multilayer films articles, and structured protective films.

Retroreflective article comprising multiple locally-laminated layers

A retroreflective article comprises a binder layer and a plurality of retroreflective elements, each retroreflective element comprising a transparent microsphere partially embedded in the binder layer. At least some of the retroreflective elements comprise a first locally laminated layer and a second locally laminated layer that may be reflective layers. A transfer article comprises a disposable carrier layer in which the retroreflective article is detachably disposed with at least some of the transparent microspheres in contact with the disposable carrier layer.