BACK SHEET FOR SOLAR CELLS, AND SOLAR CELL USING SAME
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United States of America Patent
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Issued Date -
May 22, 2014
app pub date -
Jul 6, 2012
filing date -
Jul 7, 2011
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Abstract
A solar-cell back sheet comprising a laminate of an adhesive layer (2) containing 50 to 100% by weight of a thermoplastic resin and 0 to 50% by weight of an inorganic filler or an organic filler, and a base layer (1) containing 30 to 95% by weight of a polypropylene resin, and 5 to 70% by weight of an inorganic filler or an organic filler, and being stretched in at least one direction with a porosity of 55% or less, in which a reflectance for light of 750 nm wavelength is 90% or more and a partial discharge voltage per micrometer is 7.5 V or more, is excellent in partial discharge voltage, and can be reduced in thickness, and has excellent adhesion for a sealing material.
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