Title:
POLYESTER FILM, BACKSHEET FOR SOLAR CELL MODULE, AND SOLAR CELL MODULE
Document Type and Number:
WIPO Patent Application WO/2013/153978
Kind Code:
A1
Abstract:
A polyester film which has at least one layer containing a CHDM-based polyester that comprises 0.1 to 20 mol% or 80 to 100 mol% of structural units derived from 1,4-cyclohexane- dimethanol relative to the diol component and which exhibits an intrinsic viscosity (IV) of 0.6 to 1.5dL/g and a maximum stress retention of 40 to 95% as determined after the film has been heated at 180°C and a relative humidity of 0% for 120 hours, said maximum stress retention being relative to the maximum stress of the fresh film. The polyester film exhibits excellent heat resistance, so that, when used as a backsheet in a solar cell module in such a state that the film adheres tight to a sealing material, the film can keep the tight adhesion at a good level even after dry-thermo exposure.
Inventors:
HASHIMOTO KIYOKAZU (JP)
Application Number:
PCT/JP2013/059850
Publication Date:
October 17, 2013
Filing Date:
April 01, 2013
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
C08J5/18; B29C48/305; B32B27/36; C08G63/199; C08L67/02; H01L31/042
Domestic Patent References:
| WO2013027543A1 | 2013-02-28 | |||
| WO2012029760A1 | 2012-03-08 | |||
| WO2013027678A1 | 2013-02-28 |
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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