BACK SIDE PROTECTIVE SHEET FOR SOLAR CELL AND SOLAR CELL MODULE COMPRISING THE SAME
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United States of America Patent
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Issued Date -
Nov 15, 2012
app pub date -
Mar 3, 2011
filing date -
Mar 23, 2010
priority date (Note) -
Abandoned
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Abstract
A back side protective sheet disposed on a back side of a solar cell module and including a first film containing linear low-density polyethylene having a density greater than or equal to 0.91 g/cm3 and less than or equal to 0.93 g/cm3 and an inorganic ultraviolet absorbing agent; and a second film being laminated on the first film, with a urethane adhesive layer being interposed therebetween. An average particle diameter of the inorganic ultraviolet absorbing agent is greater than or equal to 0.1 μm and less than or equal to 5 μm. The first film contains the inorganic ultraviolet absorbing agent greater than or equal to 0.1% by mass and less than or equal to 30% by mass.
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