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Laminated glass for use in vehicles

A technology for laminated glass and vehicles, applied in vehicle parts, glass/slag layered products, coatings, etc., can solve problems such as inconvenience in use, and achieve good thermal insulation effects

Active Publication Date: 2012-05-23
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For laminated glass for vehicles with thermal insulation produced by this method, if good thermal insulation is desired, there are systems that use infrared communication such as VICS that use optical navigation, or sensors that use near-infrared light. Easy to use inconvenience

Method used

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  • Laminated glass for use in vehicles
  • Laminated glass for use in vehicles
  • Laminated glass for use in vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] [Example 1] (Case 1 in which a heat ray reflecting film is provided on glass)

[0112] On 300mm×300mm colorless transparent soda lime silica glass (manufactured by Asahi Glass Co., Ltd. (manufactured by Asahi Glass Co., Ltd.)) with a thickness of 2mm, two layers of silver (Ag) layers are formed by magnetron sputtering. Heat-treated heat-ray reflective film. Table 1 shows the layer structure material, film thickness and composition of each layer of the multilayer heat ray reflective film.

[0113] In addition, when forming the above-mentioned heat ray reflecting film, a 300 mm×110 mm band-shaped masking was performed along one edge of the glass (the edge referred to as the "upper edge" in the laminated glass described later). That is, a strip-shaped metal covering of 300 mm×110 mm was prepared, and a strip-shaped covering of 300 mm×110 mm was provided along one edge of the glass. As a result, the heat ray reflecting film is not provided in the portion where the cover i...

Embodiment 2

[0129] [Example 2] (Case 2 in which a heat ray reflecting film is provided on glass)

[0130] In the same manner as in Example 1 above, a heat ray reflecting film was provided on colorless transparent soda lime silica glass (manufactured by Asahi Glass Co., Ltd.) with a thickness of 300 mm×300 mm and a thickness of 2 mm. Using this glass with a heat ray reflective film, as an interlayer, except for using the interlayer prepared below in which ITO was added to the colored portion, the same operation as in the above-mentioned Example 1 was performed to obtain a laminated glass test piece for vehicles (hereinafter, simply referred to as "Laminated glass for vehicles").

[0131]

[0132] To prepare 100 parts by weight of polyvinyl butyral resin, 0.28 parts by weight of indium oxide (ITO) particles mixed with tin and 0.014 parts by weight of trioctyl phosphate were dispersed in 10 parts by weight of triethylene glycol- The plasticizer dispersion obtained by di-ethylhexanoate (3G...

Embodiment 3

[0135] [Example 3] (case where a thin film provided with a heat ray reflecting film is enclosed in an interlayer film)

[0136]300mm x 300mm thickness 0.76mm interlayer with colored portion (trade name: S-1ec, Sekisui Chemical Co., Ltd. (Sekisui Chemical Industry Co., Ltd.) (hereinafter, film A) and a non-colored interlayer film (trade name: saflex AR11, Solutia Japan) with a thickness of 0.38 mm of 300 mm × 300 mm Company (Solusia Japan Co., Ltd.)) (hereinafter, film B), a 300 mm x 190 mm thickness of 0.05 mm heat reflection film (trade name: XIR-70, Shaohua Technology Co., Ltd. (Southwall Technologies)) was installed as follows And obtained with the above image 3 A 300 mm×300 mm interlayer film for laminated glass for vehicles having the same cross-sectional structure as the interlayer film 14 . The upper end of the heat ray reflective film is located 110 mm below the upper edge of the interlayer film used as the upper edge when used in laminated glass for vehicles, where...

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Abstract

Provided is a laminated glass for use in vehicles, said laminated glass using a heat-reflecting material. The provided laminated glass is an excellent thermal barrier, is safe, durable, and economical, and is transparent to radio waves, thereby allowing the emplacement of various communication devices. The following are laminated to form the provided laminated glass: at least two glass layers; a middle film between the glass layers; and a heat-reflecting film having a layer consisting primarily of silver. The laminated glass is characterized in that the middle film is provided throughout the entire laminated glass and has a strip-shaped colored portion provided along the upper edge thereof; the upper edge of the heat-reflecting film is located above the vicinity of the bottom edge of the colored portion of the middle film and at least 50 mm below the upper edge of the laminated glass; and the heat-reflecting film is provided throughout almost all of the laminated glass, excepting part or all of the upper edge region of the laminated glass.

Description

technical field [0001] The present invention relates to a laminated glass for vehicles having radio wave transmission and good heat insulation. Background technique [0002] In recent years, development of a laminated glass for vehicles with a low infrared transmittance and good thermal insulation has been carried out. However, when a heat ray reflective film (hereinafter, simply referred to as a heat ray reflective film) having a layer mainly composed of silver is used as a laminated glass for vehicles to reduce the infrared transmittance, there are cases where it is used in keyless entry devices, GPS, mobile phones, etc. , ETC, etc., the problem of poor transmittance of electromagnetic waves with a frequency of 300 MHz to 10 GHz. [0003] On the other hand, for laminated glass for vehicles, other means of reducing the infrared transmittance include a method of incorporating an infrared absorbing material into the interlayer film of the laminated glass. For laminated glas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C27/12
CPCB32B17/10174B32B17/10B32B17/1066B32B17/10036B32B17/10559Y10T428/24868B32B17/10005B32B2367/00B32B7/12B32B17/00C03C27/10B32B2605/08
Inventor 正木裕二
Owner ASAHI GLASS CO LTD
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