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Thermochromic film and thermochromic complex

A thermochromic and complex technology, applied in the direction of color-changing fluorescent materials, synthetic resin layered products, instruments, etc., can solve the problems of film degradation, film haze change, oxidation and other problems

Active Publication Date: 2021-03-23
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in Patent Document 4, protection with polycarboxylic acid is reported, but there is no report on the haze change of the film.
[0009] In addition, as another problem, the adhesive will contain VO 2 When the film is attached to the glass, the promotion of VO 2 The phenomenon of oxidation, the deterioration of the film becomes a problem

Method used

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  • Thermochromic film and thermochromic complex
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  • Thermochromic film and thermochromic complex

Examples

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Embodiment

[0171] Hereinafter, although an Example is given and this invention is demonstrated concretely, this invention is not limited to these. In addition, expressions such as "parts" or "%" used in the examples mean "parts by mass" or "% by mass" unless otherwise specified. In addition, "film" in the following description and a table|surface represents a thermochromic film. In Table 1, the haze, the light transmittance, and the light transmittance change of the composite using the thermochromic film corresponding to the film number (thermochromic composite) are shown.

[0172] "The production of thermochromic film"

[0173] [Production of Film 101]

[0174] (VO 2 Preparation of particle aqueous dispersion 1)

[0175] Mix vanadium dioxide particles (VO 2 , Shinko Chemical Co., Ltd.) 74.9 g, and 200 g of 300 μm zirconia beads for a bead mill were pulverized using an Apex mill (made by Kotobuki Kogyo Co., Ltd.). Aqueous ammonia was added to the pulverized particles so that the st...

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Abstract

The objective of the present invention is to provide: a thermochromic film which achieves a good balance between durability and stability of haze; and a thermochromic composite body. A thermochromic film according to the present invention contains vanadium dioxide particles having thermochromic properties, and is characterized by having a vanadium dioxide containing-layer which contains a chelate complex together with the vanadium dioxide particles.

Description

technical field [0001] The present invention relates to a thermochromic film and a thermochromic composite, and more specifically, to a thermochromic film showing durability and haze stability, and the like. Background technique [0002] In recent years, laminated glass with high heat insulation and thermal insulation properties has been distributed in the market in order to reduce the degree of heat felt by human skin due to the influence of sunlight entering from car windows. Recently, with the popularization of electric vehicles and the like, the development of near-infrared light (heat ray) shielding films suitable for laminated glass has been actively developed from the viewpoint of improving the efficiency of air conditioners in the car. [0003] Near-infrared light-shielding film is suitable for window glass of car bodies and buildings, which can reduce the load on air-conditioning equipment such as air conditioners in cars, and is an effective means of energy-saving ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/22B32B17/06B32B27/36C03C17/32C03C27/12C08J5/18C09K9/00C01G31/02
CPCB32B17/06B32B27/36C01G31/02C03C17/32C08J5/18C09K9/00G02B5/22
Inventor 熊谷丈范
Owner KONICA MINOLTA INC
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