Title:
POLYESTER FILM, BACK SHEET FOR SOLAR CELL USING THE SAME, AND THE SOLAR CELL
Document Type and Number:
Japanese Patent JP2012057021
Kind Code:
A
Abstract:
To provide: a polyester film excellent in high wet heat resistance over a long period; a back sheet for a solar cell having high durability and excellent flame retardancy by using the polyester film; and the solar cell using the back sheet.
In this polyester film containing a polyester layer (P layer) containing polyester and a hydrolysis-proof agent, the content of the hydrolysis-proof agent to the P layer is ≥0.01 wt.%, and the alkali metal element content W1 in the P layer is ≥0.5 mol/t, and the ratio W1/W2 of the alkali metal element content W1 (mol/t) to the phosphorus element content W2 is ≥0.4 and ≤0.8.
Inventors:
AOYAMA SHIGERU
SUZUKI TADAMASA
MASUDA TOMOHIDE
TAKAHASHI KOZO
SUZUKI TADAMASA
MASUDA TOMOHIDE
TAKAHASHI KOZO
Application Number:
JP2010200606A
Publication Date:
March 22, 2012
Filing Date:
September 08, 2010
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
C08J5/18; C08G63/181; H01L31/042
Domestic Patent References:
| JP2008007750A | 2008-01-17 | |||
| JP2008231399A | 2008-10-02 | |||
| JP2009220777A | 2009-10-01 | |||
| JP2008007750A | 2008-01-17 |
Foreign References:
| WO2009123357A1 | 2009-10-08 | |||
| WO1993020999A1 | 1993-10-28 | |||
| WO2006057228A1 | 2006-06-01 |
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