# US 2014/0193612 A1 · Nanostructured articles and methods to make the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0193612 A1 - Document ID: US20140193612A1 - Status: Published application - Kind: A1 - Application number: 14/237,401 - Filed: 2012-08-13 - Published: 2014-07-10 - Earliest claimed: 2011-08-17 - Assignees: 3M Innovative Properties Company - Inventors: Ta-Hua Yu; Moses M. David; Douglas S. Dunn; Seth M. Kirk; Brant U. Kolb; William Blake Kolb; Mark A. Strobel; Jun-Ying Zhang - Web page: https://patentgrep.com/patent/US20140193612A1 ## CPC - G02B 1/04: made of organic materials, e.g. plastics (G02B1/08 takes precedence) - B82Y 20/00: Nanooptics, e.g. quantum optics or photonic crystals - C08K 9/04: Ingredients treated with organic substances {(treated with macromolecular compounds C08K9/08)} - C08K 9/08: Ingredients agglomerated by treatment with a binding agent - C09D 5/006: {Anti-reflective coatings} - C09D 7/67: {Particle size smaller than 100 nm} - B05D 3/145: {After-treatment} - B05D 7/04: to surfaces of films or sheets (producing layered products by applying coatings of pasty or pulverulent plastics B29C41/00) - B05D 2601/22: Silica - B82Y 40/00: Manufacture or treatment of nanostructures - G02B 2207/101: Nanooptics - Y10T 428/24372: Particulate matter - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract Material comprising sub-micrometer particles dispersed in a polymeric matrix. The materials are useful in article, for example, for numerous applications including display applications (e.g., liquid crystal displays (LCD), light emitting diode (LED) displays, or plasma displays); light extraction; electromagnetic interference (EMI) shielding, ophthalmic lenses; face shielding lenses or films; window films; antireflection for construction applications; and construction applications or traffic signs. ## Claims ### Claim 1 A material comprising sub-micrometer particles dispersed in a polymeric matrix, wherein the material has a major surface, wherein the sub-micrometer particles have particle sizes of at least 75 nm, wherein a portion of the sub-micrometer particles protrude from the major surface by up to 90 percent of their respective particle sizes, wherein the protruding sub-micrometer particles each have an exposed outer surface, wherein less than 50 percent of the exposed outer surface is covered by organic material. ### Claim 2 (depends on 1) The material of claim 1, wherein the sub-micrometer particles are covalently bonded to the polymeric matrix. ### Claim 3 (depends on 1) An article comprising a substrate having first and second generally opposed major surfaces with a layer of the material of claim 1 on the first major surface. ### Claim 4 (depends on 3) A method of making an article, the method comprising: providing a layer comprising sub-micrometer particles dispersed in a polymeric precursor matrix; at least one of drying or curing the layer; and etching the dried or cured layer, as applicable, to provide the article of claim 3. ### Claim 5 A material comprising sub-micrometer particles dispersed in a polymeric matrix, wherein the material has a major surface, wherein the sub-micrometer particles have particle sizes of at least 75 nm, wherein a portion of the sub-micrometer particles protrude from the major surface in a range from 50 nm to 200 nm, and wherein a portion of the sub-micrometer particles protrude from the major surface by up to 90 percent of their respective particle sizes. ### Claim 6 (depends on 5) The material of claim 5, wherein the sub-micrometer particles are covalently bonded to the polymeric matrix. ### Claim 7 (depends on 5) An article comprising a substrate having first and second generally opposed major surfaces with a layer of the material of claim 5 on the first major surface. ### Claim 8 (depends on 7) A method of making an article, the method comprising: providing a layer comprising sub-micrometer particles dispersed in a polymeric precursor matrix; at least one of drying or curing the layer; and etching the dried or cured layer, as applicable, to provide the material article of claim 7. ### Claim 9 A material comprising sub-micrometer particles dispersed in a polymeric matrix, wherein the material has a major surface, wherein a portion of the sub-micrometer particles protrude from the major surface by up to 90 percent of their respective particle sizes, and wherein the sub-micrometer particles are covalently bonded to the polymeric matrix. ### Claim 10 (depends on 9) An article comprising a substrate having first and second generally opposed major surfaces with the layer of the material of claim 9 on the first major surface. ### Claim 11 (depends on 10) A method of making an article, the method comprising: providing a layer comprising sub-micrometer particles dispersed in a polymeric matrix; at least one of drying or curing the layer; and etching the dried or cured layer, as applicable, to provide the material article of claim 10.