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Anti-reflective article with nano-silica-based coating

A silicon dioxide, anti-reflection technology, applied in medical preparations containing active ingredients, coatings, nanotechnology, etc., can solve problems such as rising costs and increasing investment in unconventional power sources

Inactive Publication Date: 2015-12-16
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Investments in unconventional power sources have increased due to the rising cost of conventional power generation based on burning fossil fuels (e.g., oil- and coal-based power plants) and the need to reduce the accompanying greenhouse gases

Method used

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  • Anti-reflective article with nano-silica-based coating
  • Anti-reflective article with nano-silica-based coating
  • Anti-reflective article with nano-silica-based coating

Examples

Experimental program
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Effect test

example 1

[0260] Micro-replicated polymethyl methacrylate optical luminescent film (previously available from 3M Company, St. Paul, MN under the trade name "OPTICALLIGHTINGFILM"; now available from 3M Company under the trade name "OPTICALLIGHTINGFILM 2301" (3MCompany's alternative product) is coated with an acidified aqueous nanoparticle solution prepared by mixing a 70% 20nm particle solution (obtained under the trade name "NALCO1050NANOPARTICLESOLUTION" from Neb, Illinois) Weir’s Nalco Company (NalcoCompany, Naperville, IL) and a 30% 4nm silica nanoparticle solution (obtained from NalcoCompany under the trade name "NALCO1115NANOPARTICLESOLUTION"); 3wt.% nitric acid was added Into the ready-to-use solution, and dilute to 5 wt.% with deionized water to obtain a dry thickness of about 20 nm. Then the nanosilica-coated acrylic prism film was heated to 85°C for 1 hour.

[0261] Reference Figure 8 , Which is a camera digital image of the cross-section of exemplary acid-sintered silica nanopa...

example 2

[0264] A diamond with an apex angle of 53 degrees was used to cut linear prism grooves on a copper roller with a pitch of 100 microns to make a micro-replication casting mold. Then, using this metal micro-replication casting roll mold, a "ribbed" 53-degree linear prism polypropylene polymer film mold with the same pattern is manufactured by continuously extruding and quenching the molten polypropylene on the metal casting roll mold.

[0265] The polyurethane film was prepared using a notch bar flat coating device and the following procedure. A spiral blade mixer was used to mix 1368 grams of aliphatic polyester polyol (obtained from King Industries, Norwalk, CT under the trade name "K-FLEX188") with 288 grams of hydroxyphenyl triacetate. Oxazine ultraviolet light stabilizer (obtained from Ciba Specialty Chemicals, Tarrytown, NY under the trade name "TINUVIN405"), 144 grams of hindered amine light stabilizer (obtained under the trade name "TINUVIN123" from Ciba Specialty Chemicals...

example 3

[0269] 90 wt% polycarbonate (available from Bayer Materials Science under the trade name "MAKROLONOD2015") and 10 wt% PC-UVA masterbatch (available under the trade name "SUKANOTA28-09MB01" from Sukano Polymers Corporation (Sukano Polymers Corporation) )) ("PC-UVA") as the core layer and 65wt.% of polymethylmethacrylate ("PMMA"; "CP-82") (which contains 3wt.% of triazine UV absorber (Obtained from Ciba Specialty Chemicals under the trade name "TINUVIN1577") and 35wt.% polyvinylidene (obtained under the trade name "PVDF6008" from Dyneon) as a blend For the surface layer, a three-manifold mold was used to combine a polycarbonate three-layer film with polyvinylidene fluoride (obtained from Dyneon, Oakdale, MN under the trade name "PVDF6008") / polyester Methyl acrylate (available from Arkema Inc. under the trade name "PMMACP82") / UV absorber masterbatch (available from Sukano Polymers Corporation of Duncan, South Carolina under the trade name "SUKANOTA11-10MB03" , Duncan, SC)) blend ...

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Abstract

The present invention discloses an article comprising a transparent substrate having an anti-reflective structured surface and a coating thereon comprising a porous network of silica nanoparticles bonded to Adjacent silica nanoparticles.

Description

Background technique [0001] Structured surfaces have been used in a variety of applications to achieve optical benefits, surface energy modification, adhesive viscosity control, and drag reduction. For example, the prismatic structure on the surface of the photovoltaic panel can reduce reflections and direct more light toward the silicon cell, thereby increasing power output. When applied to automobiles, boats, etc. or to wind turbines or water turbine blades, the similar prismatic structure will promote the flow of fluid on the surface, so that the resistance is reduced. [0002] Investment in unconventional power sources has increased due to rising costs of conventional power generation based on burning fossil fuels (for example, power plants based on oil and coal) and the need to reduce the accompanying greenhouse gas. For example, the U.S. Department of Energy has invested heavily in the research and development of solar power generation (for example, solar-based hot water ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/08G02B1/113H01L31/0232H01L31/0236B82Y30/00B82Y40/00G02B5/02
CPCB82Y30/00C23C24/08C23C28/00G02B1/113G02B5/0231G02B5/0294G02B5/045G02B2207/107H01L31/02327H01L31/02366Y10T428/24421H01L31/02168A61K31/7105C12N15/113C12N15/85C12N2310/141Y02E10/50
Inventor T·J·赫布林克景乃勇J·A·赖德尔
Owner 3M INNOVATIVE PROPERTIES CO
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