Interlayer Film For Laminate Glass and Laminate Glass
Patent #: 7,491,440
Inventor(s): Juichi Fukatani and Bungo Hatta
Company: Sekisui Chemical Co., Ltd.
Filed: 2004-12-14
Issued: 2009-02-17
Description:
An interlayer film for a laminate glass with at least one of each of a heat-shielding layer and a UV-shielding layer has been patented. The heat-shielding layer has an electromagnetic wave shield capability of 10 dB or lower at a frequency of 0.1 MHz to 26.5 GHz; a haze of 1.0% or lower and a visible light transmittance of 70% or higher. The film also includes a solar radiation transmittance of 85% or lower of the visible light transmittance in a wavelength range of 300 to 2,100 nm in the case where the heat-shielding layer is inserted between two plates of glass selected from a group consisting of clear glass, green glass, high heat ray absorption glass and UV absorption glass to obtain a laminate glass. The UV-shielding layer has an UV transmittance of 10% or lower measured in accordance with SAE J1796 in the case where the UV-shielding layer is inserted between two plates of glass selected from a group consisting of clear glass, green glass, high heat ray absorption glass and UV absorption glass to obtain a laminate glass.
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