Photovoltaic Modules Containing Plasticized Intermediate Layer Films With High Volume Resistivity and Good Penetration Resistance
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United States of America Patent
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Issued Date -
Mar 10, 2011
app pub date -
May 8, 2009
filing date -
May 8, 2008
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Abandoned
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Abstract
Plasticizer-containing films based on polyvinyl acetal and comprising more than 10 ppm of metal ions selected from the group of alkaline earth metals, zinc and aluminum and less than as 150 ppm of alkali metal ions are used for the production of photovoltaic modules. The films preferably exhibit an electrical volume resistivity of more than 1E11 ohm·cm in an ambient of 85% RH/23° C. The photovoltaic modules may be used as facade elements, roof surfaces, winter garden coverings, sound-insulating walls, balcony or balustrade elements, or as components of window surfaces.
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