Patent application number | Description | Published |
20100227272 | Highly Functional Multiphoton Curable Reactive Species - A multiphoton curable photoreactive composition including hydantoin hexaacrylate and a photoinitiator system. In some embodiments, the multiphoton curable photoreactive composition consists essentially of hydantoin hexaacrylate and a photoinitiator system. Additionally, the applying a multiphoton curable photoreactive composition comprising hydantoin hexaacrylate and a photoinitiator system may be applied to a substrate and a portion of the multiphoton curable photoreactive composition may be at least partially cured to form an at least partially cured structure. | 09-09-2010 |
20100239783 | METHODS OF FORMING MOLDS AND METHODS OF FORMING ARTICLES USING SAID MOLDS - A method of forming a working mold including placing a substrate near an electrode in a chamber, the substrate ( | 09-23-2010 |
20100294954 | METHOD FOR MAKING STRUCTURES WITH IMPROVED EDGE DEFINITION - A method includes scanning a radiation beam with respect to a multi-photon curable photoreactive composition. The radiation beam includes a power sufficient to at least partially cure a volume of the multiphoton curable photoreactive composition. The method further includes modifying a characteristic of the radiation beam as the radiation beam is scanned. | 11-25-2010 |
20100307680 | BENZOXAZINE-THIOL ADDUCTS - Novel benzoxazine-thiol adducts are described, which may be may be cured to produce compositions useful in coating, sealants, adhesive and many other applications. | 12-09-2010 |
20100308509 | METHODS OF FORMING MOLDS AND METHODS OF FORMING ARTICLES USING SAID MOLDS - A method of forming a working mold including: placing a substrate ( | 12-09-2010 |
20110001950 | MULTI-PHOTON EXPOSURE SYSTEM - An exposure system includes a light source emitting a beam along an optical axis that is capable of inducing a multi-photon reaction in a resin. The exposure system further includes a resin undergoing multiphoton reaction, as well as an automated system including a monitor that measures at least one property of the beam selected from power, pulse length, shape, divergence, or position in a plane normal to the optical axis. The monitor generates at least one signal indicative of the property of the beam, and a sub-system adjusts the beam in response to the signal from the monitor. | 01-06-2011 |
20130150545 | BENZOXAZINE-THIOL ADDUCTS - Novel benzoxazine-thiol adducts are described, which may be may be cured to produce compositions useful in coating, sealants, adhesive and many other applications. | 06-13-2013 |
20130211310 | ENGINEERED SURFACES FOR REDUCING BACTERIAL ADHESION - Disclosed are surfaces for resisting and reducing biofilm formation, particularly on medical articles ( | 08-15-2013 |
Patent application number | Description | Published |
20090099537 | PROCESS FOR MAKING MICRONEEDLES, MICRONEEDLE ARRAYS, MASTERS, AND REPLICATION TOOLS - A process for making a microneedle array master comprises: (a) providing a photoreactive composition, the photoreactive composition comprising: (1) at least one reactive species that is capable of undergoing an acid- or radical-initiated chemical reaction, and (2) at least one multiphoton photoinitiator system; and (b) imagewise exposing at least a portion of the composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of microneedles. The microneedles may be solid and the outer surface of the microneedles may be characterized by at least one concave area. The master may be used to fabricate a tool for replication. | 04-16-2009 |
20090175050 | PROCESS FOR MAKING LIGHT GUIDES WITH EXTRACTION STRUCTURES AND LIGHT GUIDES PRODUCED THEREBY - A process comprises imagewise exposing at least a portion of a photoreactive composition to light sufficient to cause simultaneous absorption of at least two photons/thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of light extraction structures. Each one of the array of light extraction structures has at least one shape factor; the shape factor may vary across the array. At least one light extraction structure may have the geometric configuration of a truncated asphere. | 07-09-2009 |
20090279321 | PROCESS FOR MAKING LIGHT GUIDES WITH EXTRACTION STRUCTURES AND LIGHT GUIDES PRODUCED THEREBY - A process comprises imagewise exposing at least a portion of a photoreactive composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of light extraction structures. | 11-12-2009 |
20090285543 | PROCESS FOR MAKING LIGHT GUIDES WITH EXTRACTION STRUCTURES AND LIGHT GUIDES PRODUCED THEREBY - A process comprises imagewise exposing at least a portion of a photoreactive composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of light extraction structures. | 11-19-2009 |
20130139965 | BENZOXAZINE-THIOL ADDUCTS - Novel benzoxazine-thiol adducts are described, which may be may be cured to produce compositions useful in coating, sealants, adhesive and many other applications. | 06-06-2013 |
Patent application number | Description | Published |
20130313339 | NOZZLE AND METHOD OF MAKING SAME - Nozzle and a method of making the same are disclosed. The method includes (a) providing a microstructured mold pattern defining at least a portion of a mold and comprising a plurality of replica nozzle holes and replica planar control cavities; (b) molding a first material into a nozzle forming microstructured pattern using the microstructured mold pattern, with the nozzle forming microstructured pattern comprising a plurality of nozzle hole forming features and planar control cavity forming features; (c) forming a second material into a nozzle pre-form using the nozzle forming microstructured pattern, with the nozzle pre-form comprising a plurality of nozzle pre-form holes and sacrificial planar control cavities; and (d) forming a nozzle from the nozzle pre-form, said forming the nozzle comprising removing enough of the second material to remove the sacrificial planar control cavities so as to form a top surface of the nozzle pre-form into a planar top surface of the nozzle, and to form each of the nozzle pre-form holes into a nozzle through hole. | 11-28-2013 |
20140030655 | Enhanced Multi-Photon Imaging Resolution Method - A method and a multi-photon photocurable composition are provided that allow for the formation of a three-dimensional microstructure having enhanced imaging resolution. The method involves providing a multi-photon photocurable composition system having an acrylic prepolymer and a multiphotohn photoinitiator system that comprises at least one distyrylbenzene dye or a benzothiazolyl fluorine derivative. The method includes imagewise exposing at least one voxel of the photocurable composition to a dose of electromagnetic energy under conditions effective to photodefinably form at least one solid voxel of a three-dimensional microstructure having a volume, wherein the solid voxel volume varies inversely with the dose. | 01-30-2014 |
20140080061 | PHOTORESISTS CONTAINING POLYMER-TETHERED NANOPARTICLES - Compositions such as photoresists and microfabrication processes are provided that can produce high-fidelity microfabricated structures. The provided photoresists can have reduced swelling during the development phase and can give tight tolerances for products, such as microneedles, that can be used, for example, in the medical field. The provided compositions include a photoresist, a photoinitiator system dispersed in the photoresist, and a polymer-tethered nanoparticle dispersed in the photoresist. The photoresist can be a negative photoresist and the photoinitiator system can include a two-photoinitiator system. The polymer-tethered nanoparticle can include an acrylic polymer and, in some embodiments, can include poly(methyl methacrylate). The nanoparticles can include silica. | 03-20-2014 |
20140092372 | MULTI-PHOTON EXPOSURE SYSTEM - An exposure system includes a light source emitting a beam along an optical axis that is capable of inducing a multi-photon reaction in a resin. The exposure system further includes a resin undergoing multiphoton reaction, as well as an automated system including a monitor that measures at least one property of the beam selected from power, pulse length, shape, divergence, or position in a plane normal to the optical axis. The monitor generates at least one signal indicative of the property of the beam, and a sub-system adjusts the beam in response to the signal from the monitor. | 04-03-2014 |
20150030985 | Multiphoton Curing Methods Using Negative Contrast Compositions - The present disclosure relates to multiphoton absorption methods for curing a photocurable composition under conditions wherein negative contrast occurs. The photocurable composition includes a free-radically polymerizable compound. The method is applicable to fabrication of structures with micron-scale dimensions or less. | 01-29-2015 |