Patent
Ink jet printed reflective features and processes and inks for making them
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TLDR
In this article, a direct write printed reflective features comprising metallic particles and/or metallic nanoparticles was proposed. But the reflective features were not formed by a direct writing printing process, e.g., a piezo-electric, thermal, drop-on-demand or continuous ink jet printing process.Abstract:
This invention is directed to direct write printed reflective features comprising metallic particles and/or metallic nanoparticles. Preferably, the reflective feature are formed by a direct-writing printing process, e.g., a piezo-electric, thermal, drop-on-demand or continuous ink jet printing process, using an ink comprising metallic particles, e.g., metallic nanoparticles. The invention is also directed to inks suitable for printing such reflective features using a direct write printing process and to processes for making such reflective features.read more
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Patent
Additives and modifiers for solvent- and water-based metallic conductive inks
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Silver-containing aqueous formulation and its use to produce electrically conductive or reflective coatings
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References
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Multi-component particles comprising inorganic nanoparticles distributed in an organic matrix and processes for making and using same
Toivo T. Kodas,Mark J. Hampden-Smith,Scott Haubrich,Heng Yu,Ned Jay Hardman,Ralph E. Kornbrekke,Aaron D. Stump,Klaus Kunze,David Dericotte,Karel Vanheusden +9 more
TL;DR: In this paper, a flowing aerosol is generated that includes droplets of a precursor medium dispersed in a gas phase, and at least a portion of the liquid vehicle is removed from the droplets under conditions effective to convert the precursor to the nanoparticles or the matrix.
Patent
Thin film optically variable article and method having gold to green color shift for currency authentication
TL;DR: In this article, a thin film optical variable article was used in a reflection mode having a gold to green color shift with angle for currency authentication and adapted to be carried by a substantially opaque currency sheet which serves as a substrate.
Patent
Metal nanoparticle compositions
Karel Vanheusden,Klaus Kunze,Hyungrak Kim,Aaron D. Stump,Allen B. Schult,Mark J. Hampden-Smith,Charles O. Edwards,Anthony R. James,James Caruso,Toivo T. Kodas,Scott Haubrich,Mark H. Kowalski +11 more
TL;DR: A metal nanoparticle composition for the fabrication of conductive features was proposed in this paper, which has a low viscosity permitting deposition of the composition by direct-write tools and a low conversion temperature permitting its conversion to an electrical feature on polymeric substrates.
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Article and method for forming thin film flakes and coatings
TL;DR: In this article, a flexible web of material and an optical coating formed on one surface of the web is used to produce thin film flakes and replicated optical properties. But the results are limited to a single layer of a web.
Patent
Thin film optical variable article having substantial color shift with angle and method
TL;DR: In this paper, a multilayer interference coating is carried on one of the first and second surfaces of an optically variable thin film with a colorant and a transparent element.