BACKSIDE PROTECTION SHEET FOR SOLAR CELL MODULE
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United States of America Patent
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Issued Date -
Sep 16, 2010
app pub date -
Mar 19, 2007
filing date -
Mar 28, 2006
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Abandoned
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Abstract
A backside protection sheet for a solar cell module comprising a stacked material formed by successively stacking an alumina vapor deposited polyester film, a white polyester film and a polyester film in which 60% or more of tensile elongation is maintained in both a machine direction and a transverse direction of the film after the film is stored in high-pressure steam of 140° C. for 10 hours, wherein a shrinkage percentage of said backside protection sheet at a time of heat-treating at 150° C. for 30 minutes is 0.5% or less in both the machine direction and the transverse direction.
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