Laminated glass, and structure having same mounted thereto
A technology of laminated glass and structure, applied in the direction of glass/slag layered products, windshields, layered products, etc., can solve the problems of reduced sound insulation performance, entry into the car, and deterioration of the interior environment of the car, and achieve lightweight sound insulation sexual effect
Inactive Publication Date: 2014-11-05
NIPPON SHEET GLASS CO LTD
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Problems solved by technology
However, if the thickness is made thinner, the sound insulation performance decreases, so there is a problem that the sound outside the vehicle enters the vehicle and deteriorates the environment inside the vehicle.
Method used
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Embodiment
[0088] Examples of the present invention will be described below. However, the present invention is not limited by the following examples.
[0089]
[0090] First, the evaluation of the thickness of the outer glass plate is performed. Here, seven types of laminated glass as shown below were prepared. Each laminated glass is composed of an outer glass plate, an inner glass plate, and an interlayer film sandwiched by these. The thicknesses of the core layer and the outer layer of the intermediate film were 0.1 mm and 0.33 mm, respectively, and the Young's modulus was 10 MPa and 441 MPa (20° C., 100 Hz), respectively.
[0091] [Table 1]
[0092]
Outside glass plate
inner glass plate
2.1mm
2.1mm
2.1mm
1.6mm
2.1mm
1.3mm
Laminated glass 4
2.1mm
1.0mm
Laminated glass5
1.8mm
1.3mm
Laminated glass 6
1.6mm
1.6mm
La...
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[Problem] To provide laminated glass which can improve sound insulation properties, can provide infrared transmittance to a prescribed range, and is formed from sheets of glass having different thicknesses. [Solution] This laminated glass has: an outer glass sheet; an inner glass sheet which is arranged to face the outer glass sheet, and which is thinner than the outer glass sheet; and an intermediate film which is sandwiched between the outer glass sheet and the inner glass sheet. The transmittance of the laminated glass for light having a wavelength of 870-940nm is 30-80%. The thickness of the outer glass sheet is 1.8-2.3mm. The thickness of the inner glass sheet is 0.6-2.0mm. The intermediate film is formed from a plurality of layers including at least a core layer, and the Young's modulus of the core layer at a frequency of 100Hz and a temperature of 20°C is 1-20MPa, and lower than the Young's modulus of the other layers.
Description
technical field [0001] The present invention relates to a laminated glass used for windshields and the like of automobiles, and a mounting structure to which the laminated glass is mounted. Background technique [0002] In recent years, from the viewpoint of reducing the fuel consumption of automobiles, there has been a demand for weight reduction of glasses such as windshields to be attached, and along with this, the development of thin glasses has been progressing. However, when the thickness is reduced, the sound insulation performance is lowered, so there is a problem that the sound from outside the vehicle enters the interior of the vehicle and deteriorates the interior environment of the vehicle. In order to solve these problems, for example, Patent Document 1 discloses a laminated glass for automobiles which reduces the areal density and maintains the sound insulation performance with respect to a specific frequency. This laminated glass is a laminated glass with a r...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C03C27/12B32B17/10B60J1/00
CPCB32B17/10B32B17/10036B32B17/10761B32B2250/03B32B2307/102
Inventor 神吉哲浅井贵弘
Owner NIPPON SHEET GLASS CO LTD