Thermochromic materials and preparation method
AssigneesNederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO, Chemelot Scientific Participations B.V.
InventorsPascal Jozef Paul Buskens, Zeger Alexander Eduard Pieter Vroon, Daniel Enrico Mann, Arnoldus Dominicus Maria Roberto Habets, Cindy Po Keh Yeung
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Abstract
The disclosure pertains to thermochromic materials, coatings, to coated articles and to preparation methods. In addition, the disclosure relates to thermochromic particulate material comprising vanadium (IV) oxide. A described preparation method involves curing of the coating using two curing stages performed with different oxygen levels.
Claims4
A thermochromic particulate material comprising vanadium (IV) oxide and one or more doping ions, wherein the thermochromic particulate material exhibits a SSFparticulate=ΔH/ΔTswitch>2.5, with a Tswitch,H<50° C. and an average particle size ranging between 10-500 nm, wherein ΔH is the switching enthalpy and ΔTswitch=Tswitch,H−Tswitch,C, wherein Tswitch,H and Tswitch,C are the switching temperature upon heating and cooling, respectively.
Dependencies are inferred from the claim text.