Title:
MULTILAYER FILM, BACK SHEET FOR SOLAR CELL MODULES, AND SOLAR CELL MODULE
Document Type and Number:
WIPO Patent Application WO/2015/125666
Kind Code:
A1
Abstract:
The objective of the present invention is to provide: a multilayer film having both hydrolysis resistance and visible light blocking properties; a back sheet for solar cell modules; and a solar cell module. The present invention provides a multilayer film which comprises at least a first layer containing a polyester and a white pigment and a second layer containing a polyester. The first layer is in contact with at least one surface of the second layer; the density of the white pigment in the first layer is from 1.0 × 10-4 g/cm2 to 1.0 × 10-3 g/cm2; the second layer has a thickness of 100-300 μm; the white pigment concentration of the entire multilayer film is more than 0% by mass but less than 2% by mass; and the terminal carboxyl group concentration of the entire multilayer film is 6-30 equivalents/ton.
Inventors:
SAWAYA TAKEAKI (JP)
YAMADA AKIRA (JP)
YAMADA AKIRA (JP)
Application Number:
PCT/JP2015/053625
Publication Date:
August 27, 2015
Filing Date:
February 10, 2015
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
H01L31/049; B32B27/20; B32B27/36
Domestic Patent References:
| WO2013137196A1 | 2013-09-19 | |||
| WO2012115167A1 | 2012-08-30 | |||
| WO2011030745A1 | 2011-03-17 |
Foreign References:
| JP2013021273A | 2013-01-31 | |||
| JP2011207986A | 2011-10-20 | |||
| JP2013018976A | 2013-01-31 | |||
| JP2011249756A | 2011-12-08 | |||
| JP2014207293A | 2014-10-30 |
Attorney, Agent or Firm:
SIKs & Co. (JP)
Patent business corporation patent firm Sykes (JP)
Patent business corporation patent firm Sykes (JP)
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