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Near-infrared shielding film

A near-infrared and thin-film technology, applied in the direction of film/flaky adhesives, thin material processing, synthetic resin layered products, etc., can solve problems such as obstacles, achieve water absorption, elongation and bending, easy construction and operation, and excellent Effect of near-infrared shielding

Inactive Publication Date: 2009-12-30
LINTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Next, if the film is peeled off from the film in the procedure (3), if the film is peeled off from the convex surface of the window glass in the procedure (4), due to the elongation of the hard coat layer, as figure 1 Shown with the adhesive layer as the inner side causing the bend, since the adhesive layer is bonded to the hard coat side, it would be inappropriate to create obstacles in the sequence (5), (6)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] Mixing 100 parts by weight of dipentaerythritol pentaacrylate as a pentafunctional acrylate monomer [manufactured by Seitama J. P.S. Co., Ltd., trade name "Satomai SR399E", solid content 100%], 5 parts by weight photopolymerization Initiator [Habu·Subaxiャャティ·ケミカルズ Co., Ltd., product name, "Sulco 127", solid content 100%, 2-hydroxy-1-[4-[4-(2-hydroxy-2-methylpropionyl)benzyl Yl]phenyl]-2-methylpropan-1-one], 500 parts by weight of near-infrared absorber [manufactured by Sumitomo Metal Mining Co., Ltd., trade name "YMF-01", containing 33 mol% of cesium relative to tungsten A toluene suspension with a composite tungsten oxide concentration of 10% by weight and a dispersant concentration of 4% by weight] and 100 parts by weight of toluene to prepare a hard coat forming material.

[0108] A polyethylene terephthalate (PET) film [manufactured by Mitsubishi Chemical Polyester Film Co., Ltd., trade name "PET25T600EW07"] with a thickness of 25μm is used on one side with a Meyer stic...

Embodiment 2

[0112] In Example 1, 100 parts by weight of dipentaerythritol hexaacrylate as a hexafunctional acrylate monomer [manufactured by Nippon Kayaku Co., Ltd., trade name "KAYARAD DPHA"," solid Composition 100%], except that the same operation as in Example 1 was performed to produce a near-infrared shielding film.

[0113] Table 1 shows the evaluation results of various characteristics of the near-infrared shielding film.

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Abstract

A near-infrared shielding film composed of a substratum film having, superimposed on its one major surface, a hard coat layer produced from a hard coat layer forming material containing a near-infrared absorbent and an actinic energy radiation hardening compound and having, superimposed on its other major surface, a pressure sensitive adhesive layer, characterized in that the actinic energy radiation hardening compound is composed mainly of an acrylate monomer of penta- or higher functionality. This film has characteristics such that it excels in not only near-infrared shielding performance but also visible ray transmission, having high scratch resistance and weather resistance, and such that in the application to curved glass, the film exhibits reduced curling to thereby facilitate application work, being suitable for application to buildings and automobiles, especially the window glass of automobile.

Description

Technical field [0001] The invention relates to a near-infrared shielding film. In more detail, the present invention relates to a near-infrared shielding film with excellent heat-ray (near-infrared) shielding properties, visible light penetration, high scratch resistance and weather resistance, and when applied on curved glass, because the film The water-absorbing expansion and bending are small, and the construction operation is easy, so it is suitable for attaching to buildings or automobiles, especially automobile window glass. Background technique [0002] At present, so-called openings such as windows of buildings, vehicles, or refrigerators and freezers are made of transparent glass plates or resin plates that can transmit sunlight. However, in addition to visible light, sunlight also contains ultraviolet or near-infrared rays. The 780-2100nm near-infrared rays, called heat rays, enter through the openings and cause the indoor temperature to rise. [0003] In this way, in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30B32B27/18C09J7/02C09J201/00C09J7/29
CPCC08K3/22C09J2205/106C08K2003/2258C09J2433/006C09J7/0296C09J7/29Y10T428/2809Y10T428/1462Y10T428/2848Y10T428/266C09J2301/41
Inventor 松下尚
Owner LINTEC CORP
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