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Infrared-shielding sheet, interlayer film for infrared-shielding laminated glass, and infrared-shielding laminated glass and method for manufacturing same

A technology of infrared and shielding sheets, which is applied in the field of new infrared shielding sheets, can solve problems such as inability to use, and achieve the effects of improved temperature reduction effect, low haze, and excellent manufacturing cost

Inactive Publication Date: 2019-02-05
NIPPON KAYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this insulating glass, a layer composed only of a conductor is used as a low-refractive index layer in the infrared region. Therefore, there is a problem that it is required for use in indoor and outdoor mobile phone radio waves, TV radio waves, GPS ( Global Positioning System) radio wave transmission and reception of radio waves and other radio wave transmission performance system, can not be used
However, there are no specific descriptions or examples showing that this infrared heat shield sheet uses copper naphthalocyanine or KAYASORB IR-750 as an infrared absorbing dye, and further includes green glass, thereby improving performance compared to conventional ones.

Method used

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  • Infrared-shielding sheet, interlayer film for infrared-shielding laminated glass, and infrared-shielding laminated glass and method for manufacturing same
  • Infrared-shielding sheet, interlayer film for infrared-shielding laminated glass, and infrared-shielding laminated glass and method for manufacturing same
  • Infrared-shielding sheet, interlayer film for infrared-shielding laminated glass, and infrared-shielding laminated glass and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0154] (Production of high refractive index resin layer)

[0155] Titanium oxide particles with an average primary particle size of 35 nm (trade name "TTO-51A", manufactured by Ishihara Sangyo Co., Ltd.) 1.4 parts, KAYARAD DPHA 0.4 parts, 2-methyl-1-[4-(methylthio)phenyl ]-2-morpholinopropan-1-one (BASF Japan Co., Ltd. "IRGACURE 907") 0.05 parts, and dispersant (trade name "DISPERBYK-2001", BYK Chemicals Japan Co., Ltd.) 0.3 parts were added to 7 parts of toluene were dispersed at a peripheral speed of 10 m / s using a bead mill to prepare a high-refractive-index resin coating liquid for forming a high-refractive-index resin layer. The average dispersed particle diameter of the titanium oxide fine particles was 45 nm.

[0156] Next, the high-refractive-index resin coating liquid was applied to the PET base material with a wire bar coater, and the toluene was evaporated by drying at 100° C. for 2 minutes, followed by UV irradiation to produce a high-refractive-index resin layer....

Embodiment 2

[0171] (Production of interlayer film for laminated glass)

[0172] The PVB film which is a 1st intermediate film was laminated|stacked on the laminated film side of the infrared shielding sheet produced in Example 1, and the laminated body was obtained. The laminated body at a position of 1 mm or less from the end of the infrared shielding sheet on the entire circumference (four sides) is pinched by two laminating heating rolls arranged on the front side and the back side of the obtained laminated body, and the The infrared shielding sheet is bonded to the first intermediate film by thermocompression. At this time, as for the heating roll for lamination, the temperature of the lamination roll on the side of the intermediate film was set at 25° C. so as not to damage the embossing on the back side of the first interlayer film, and on the contrary, the layer on the side of the infrared absorbing dye layer The temperature of the heating roll for pressing was set at 120° C. so a...

Embodiment 3

[0176] Using the interlayer film for laminated glass used in Example 2, glass plate (float flat glass FL3, manufactured by CENTRALGLASS Co., Ltd.) / first interlayer film / infrared shielding sheet / second interlayer film / green glass plate (Green ral MFL3, (manufactured by Central Glass Co., Ltd.) was laminated in the same manner as in Example 2 to produce a laminated glass.

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Abstract

Provided is a novel infrared-shielding sheet in which transparency in the visible light region, radio-wave transparency, infrared shielding properties, manufacturing cost, and hue are significantly improved. An infrared-shielding sheet provided with a layered film in which a high-refractive-index resin layer containing microparticles and a low-refractive-index resin layer containing microparticlesare alternately layered, and an infrared-absorbent pigment layer having a visible-light transmittance of 70% or greater and a b* value of 10 or less in the L*a*b* color system, the infrared-shieldingsheet characterized in that the value obtained by subtracting the refractive index of at least one layer of the low-refractive-index resin layer at an arbitrary wavelength of 780 nm to 2500 nm from the refractive index at a wavelength of 550 nm is 0.1 or greater, and the low-refractive-index resin layer exhibits a lower refractive index than the high-refractive-index resin layer at an arbitrary wavelength of 550 nm to a wavelength equal to or less than the abovementioned arbitrary wavelength.

Description

technical field [0001] The present invention relates to a novel infrared shielding sheet that efficiently absorbs and reflects infrared rays and has excellent transparency and low haze, its production method, and its use (interlayer film for glass, laminated glass, and window member). Background technique [0002] In recent years, from the viewpoint of energy saving and global environmental issues, it has been required to reduce the load on air-conditioning equipment. For example, in the fields of housing and automobiles, it is required to lay an infrared shielding material capable of shielding infrared rays from sunlight on window glass to control the temperature of the room and the interior of the car. [0003] There are various materials with infrared shielding properties. In Patent Document 1, in order to reflect light of a specific wavelength in the infrared region, a high heat insulating laminated glass is disclosed. The infrared reflective film is laminated with a fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/28B32B7/02B32B27/20B60J1/00G02B5/22
CPCB32B27/20B60J1/00G02B5/22G02B5/28B32B17/10036B32B17/1055B32B17/10651B32B17/10633B32B2605/08B32B2307/402B32B2307/4026B32B2307/416B32B2307/304B32B2307/418G02B5/223B32B7/023B32B17/10761B32B17/10871B32B17/1088B32B2605/006B32B2264/102B32B2250/42
Inventor 原幸广有福达治海老原颂子野原彰浩
Owner NIPPON KAYAKU CO LTD
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