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Laminated glass, window material, and wall surface structures with windows

A technology of laminated glass and window parts, which is applied to vehicle parts, windshields, glass/slag layered products, etc., and can solve problems such as difficult construction, difficult opening and closing operations, and heavy weight of window parts

Inactive Publication Date: 2010-01-13
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the effect of improving durability can be reliably obtained, the weight of window parts becomes very heavy, requiring a special window frame, making construction difficult, and opening and closing the window is also difficult.

Method used

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  • Laminated glass, window material, and wall surface structures with windows
  • Laminated glass, window material, and wall surface structures with windows
  • Laminated glass, window material, and wall surface structures with windows

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] figure 1 A partial cross-sectional view of the laminated glass of the present invention is shown in . In the laminated glass 10 of this example, when the so-called mass percentage in terms of oxide is displayed, it is SiO 2 45-74%, B 2 o 3 2 to 24%, RO 4 to 30% (RO=MgO+CaO+ZnO+SrO+BaO) thin plate glass made of alkali-free borosilicate glass with a thickness of 0.7mm is laminated as the glass layer 11 in 7 layers, and each glass layer Between 11, polyvinyl butyral (PVB) resin with a thickness of 0.5 mm is interposed as a resin layer 12, and the laminated glass 10 is a laminated body consisting of a total of 13 layers of the glass layer 11 and the resin layer 12. Among the adjacent glass layer 11 and resin layer 12 , the ratio of the thickness of the resin layer 12 to the thickness of the glass layer 11 (thickness of the resin layer 12 / thickness 11 of the glass layer) was 0.71. In the laminated glass 10, seven layers of thin glass with a thickness of 0.7 mm are lam...

Embodiment 2

[0062] Next, a repetitive same-point impact test performed to evaluate the impact-absorbing performance of the laminated glass of the present invention and the laminated glass of the comparative example will be described.

[0063] First, as a sheet glass for constituting the laminated glass used in the repeated same-point impact test, alkali-free glass (glass cord OA-10) manufactured by Nippon Electric Glass Co., Ltd. was formed with a plate thickness of 0.7 mm by the downdraw forming method. . The obtained plate glass of OA-10 was cut into 750 mm x 620 mm, and the predetermined number of sheets was prepared. Next, a predetermined number of film-like resin materials having a predetermined thickness made of ethylene vinyl acetate copolymer (EVA) or polyvinyl butyral (PVB) are prepared. This thin film was interposed between the above-mentioned glass plates, and the laminated body was formed by a heating press method.

[0064] The laminated glass obtained by the above steps is ...

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Abstract

To provide a laminated glass which exhibits high penetration resistance and impact resistance even against repeated impact applied at one point on the glass surface with concentration and which is free from structural load by virtue of its lightweightness and is economically advantageous. ¢MEANS FOR SOLVING PROBLEMS! A laminated glass (10) which is constituted of seven glass layers (11) each consisting of a 0.7-mm thick glass sheet and resin layers (12) lying among the glass layers (11) respectively which resin layers (12) are made of polyvinyl butyral (PVB) resin and have each a thickness of 0.5mm with the total number of the glass layers (11) and the resin layers (12) being 13. Between a glass layer (11) and a resin layer (12) which are adjacent to each other, the thickness ratio of the resin layer (12) to the glass layer (11) ¢the ratio of the thickness of the resin layer (12) / the thickness of the glass layer (11)! is 0.71. The matrix resin constituting the resin layers (12) may be ethylene / vinyl acetate copolymer (EVA) or methacrylic resin (PMA) as well as polyvinyl butyral (PVB) resin.

Description

technical field [0001] The present invention mainly relates to an impact-absorbing laminated glass suitable as a window member for buildings, automobiles, railway vehicles and the like. Background technique [0002] In general, a laminated glass body in which an interlayer is interposed between two sheets of glass called laminated glass is used in order to satisfy required performances that cannot be achieved in a glass-only structure. Examples of applications of such laminated glass include structural members such as walls and floors requiring see-through, window members requiring high mechanical durability, window members having high heat insulation or heat resistance, and the like. In addition to such uses, it can also be used as electronic equipment components for image display such as liquid crystal displays. Currently, applications of glass laminates are diversifying, and their manufacture and products often require advanced techniques. Therefore, regarding laminated...

Claims

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Application Information

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IPC IPC(8): C03C27/12B32B17/10B60J1/00
CPCC03C27/06B32B2607/00B32B17/10788B32B17/10761B32B17/10045Y10T428/24967C03C27/10B32B17/10B60J1/00
Inventor 岛谷成俊
Owner NIPPON ELECTRIC GLASS CO LTD