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US 8,945,441 B2Granted
Methods and materials for fabricating laminate nanomolds and nanoparticles therefrom
AssigneeLiquidia Technologies, Inc.
InventorsJason P. Rolland, Benjamin Maynor, Robert Lyon Henn
Life of this patent
Estimating the term…
Abstract
A laminate nanomold includes a layer of perfluoropolyether defining a cavity that has a predetermined shape and a support layer coupled with the layer of perfluoropolyether. The laminate can also include a tie-layer coupling the layer of perfluoropolyether with the support layer. The tie-layer can also include a photocurable component and a thermal curable component. The cavity can have a broadest dimension of less than 500 nanometers.
Claims20
A method of making a laminate mold comprising:
- positioning a patterned master comprising a pattern of structures adjacent to a support layer;
- positioning the patterned master and adjacent support layer adjacent a nip roller;
- delivering a curable polymer material selected from the group consisting of fluoropolyether, perfluoropolyether, poly(dimethyl siloxane), poly(tetramethyl oxide), poly(ethylene oxide), poly(oxetanes), polyisoprene, polybutadiene, and fluoroolefin-based fluoroelastomers between the patterned master and the support layer adjacent an input side of the nip roller;
- activating the nip roller to form a laminate from the patterned master with the support layer, wherein the curable polymer material is dispersed between the patterned master and the support layer in the laminate;
- treating the laminate to activate a curable component of the curable polymer material such that the curable polymer material is solidified to create a mold layer coupled to the support layer;
- and
- separating the patterned master from the mold layer, wherein the mold layer coupled to the support layer has a modulus at least 200 times the moldulus of the mold layer alone.
4 more elements
A method of making a laminate mold comprising:
- positioning a patterned master comprising a pattern of structures adjacent to a support layer;
- positioning the patterned master and adjacent support layer adjacent a nip roller;
- delivering a curable polymer material selected from the group consisting of fluoropolyether, perfluoropolyether, poly(dimethyl siloxane), poly(tetramethyl oxide), poly(ethylene oxide), poly(oxetanes), polyisoprene, polybutadiene, and fluoroolefin-based fluoroelastomers between the patterned master and the support layer adjacent an input side of the nip roller;
- activating the nip roller to laminate the patterned master with the support layer, wherein the curable polymer material is dispersed between the patterned master and the support layer to form a laminate;
- treating the laminate to activate a curable component of the curable polymer material such that the curable polymer material is solidified to create a mold layer coupled to the support layer, the mold layer having a thickness of less than 75 micrometers;
- and
- separating the patterned master from the mold layer, wherein the mold layer coupled to the support layer has a modulus at least 200 times the modulus of the mold layer alone.
4 more elements
A method of making a laminate mold comprising:
- positioning a patterned master comprising a pattern of structures adjacent to a support layer;
- positioning the patterned master and adjacent support layer adjacent a nip roller;
- delivering a curable polymer material selected from the group consisting of fluoropolyether, perfluoropolyether, poly(dimethyl siloxane), poly(tetramethyl oxide), poly(ethylene oxide), poly(oxetanes), polyisoprene, polybutadiene, and fluoroolefin-based fluoroelastomers between the patterned master and the support layer adjacent an input side of the nip roller;
- activating the nip roller to laminate the patterned master with the support layer, wherein the curable polymer material is dispersed between the patterned master and the support layer to form a laminate;
- treating the laminate to activate a curable component of the curable polymer material such that the curable polymer material is solidified to create a mold layer coupled to the support layer, the mold layer comprising a plurality of cavities, each cavity of the plurality of cavities comprising a predetermined shape and a width to depth ratio of less than about 1,000:1;
- and
- separating the patterned master from the mold layer, wherein the mold layer coupled to the support layer has a modulus at least 200 times the modulus of the mold layer alone.
4 more elements
Dependencies are inferred from the claim text.