Coloring layer composition for chromatic device and method of producing chromatic device by using same
May 16, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesThermochromic materials Formation of an electrochromic display layer Method for deposition of electrochromic layers Electrochromic, oxygen deficient metal oxide films provided by pyrolytic deposition Material for micro optical component and optical component using the same Hard coating film and optical elements having such coating film Novel electrochromic compositions based on diketopyrrolopyrroles Electrochromic and electrocatalytic material Patent #: 5470673 InventorsAssigneeApplicationNo. 649066 filed on 05/16/1996US Classes:252/586, Displaying color change252/583, Modification caused by energy other than light359/265, Electrochromic423/582, Peroxide423/606Group VIB metal (Cr, Mo, or W)ExaminersPrimary: Yamnitzky, MarieAttorney, Agent or FirmForeign Patent References
International ClassG02F 001/15Foreign Application Priority Data1993-08-25 JPAbstractA coloring layer composition for a chromatic device of the present invention contains an oxide such as tungsten oxide or niobium oxide and so on as a solute, water and an organic solvent such as propanol. In the step of forming a reduction coloring layer, a film is formed by using a peroxotungstic acid solution containing 100 parts by weight of WO3.aNb2 O5.bH2 O2 ∧cH2 O (wherein a, b and c are each a positive number) as a solute, 20 to 120 parts by weight of water and 80 to 800 parts by weight of n-propanol as an organic solvent. At this time, a dip coating method is used, and the vertical pulling-up speed is less than 15 cm/min. The present invention can effectively prevent unevenness and separation of the reduction coloring layer.Other References
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