Interlayer film for laminate glass and laminate glass
First Claim
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1. An interlayer film for a laminate glass,which comprises at least one of each of a heat-shielding layer and a UV-shielding layer;
- wherein 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;
a visible light transmittance of 70% or higher; and
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, and whereinthe 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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Abstract
The present invention aims to provide an interlayer film for a laminate glass to obtain a laminate glass which is excellent in transparency, heat-shielding property, and electromagnetic wave transmittance even if the laminate glass is produced by sandwiching the interlayer film for a laminate glass with one pair of glasses, and which is not deteriorated in the visible light transmittance and the initial optical properties and is excellent in weathering-resistance after the test even if a durability test to light is run for the above-mentioned laminate glass.
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17 Claims
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1. An interlayer film for a laminate glass,
which comprises at least one of each of a heat-shielding layer and a UV-shielding layer; -
wherein 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;
a visible light transmittance of 70% or higher; and
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, and whereinthe 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification