Easily Adhesive Polyester Film and Film for Protecting Back Side of Solar Cell Using the Same
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United States of America Patent
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Issued Date -
Feb 28, 2008
app pub date -
Nov 24, 2005
filing date -
Nov 25, 2004
priority date (Note) -
Abandoned
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Abstract
An easily adhesive polyester film is provided which is used for protection of the back side of a solar cell, the adhesive polyester film comprising a polyester film and a resin film situated on a surface of the polyester film, the resin film comprising a crosslinking agent and a resin selected from the group consisting of a polyester resin having a glass transition point of 20 to 100.degree. C., an acrylic resin having a glass transition point of 20 to 100.degree. C., a combination of the resins and a combination of at least one of the resins and a polyvinyl alcohol having a saponification degree of 70 to 90 mol %. This film has excellent adhesion to EVA while having excellent mechanical properties, heat resistance and moisture resistance.
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