Back to results
US 2011/0214720 A1Published application
Polyester film, method for manufacturing the same, and solar cell module
AssigneeFUJIFILM Corporation
InventorsKiyokazu HASHIMOTO, Chiyomi NIITSU, Natsuki OOYABU
Life of this patent
Estimating the term…
Abstract
A polyester film including terminal carboxylic groups in an amount of from 2 eq/t to 23 eq/t, wherein an amount of carboxylic groups on a surface of the film is from 0.005 eq/m2 to 0.2 eq/m2, and a thickness of the film is from 120 μm to 500 μm.
Claims15
A polyester film comprising terminal carboxylic groups in an amount of from 2 eq/t to 23 eq/t, wherein an amount of carboxylic groups on a surface of the film is from 0.005 eq/m2 to 0.2 eq/m2, and a thickness of the film is from 120 μm to 500 μm.
A method for manufacturing a polyester film, comprising:
- solid-phase polymerizing a polyester;
- and
- melting and kneading the solid-phase polymerized polyester and then extruding the polyester from a die, thereby forming a polyester film containing terminal carboxylic groups in an amount of from 2 eq/t to 23 eq/t, wherein an amount of carboxylic groups on a surface of the film is from 0.005 eq/m2 to 0.2 eq/m2, and a thickness of the film is from 120 μm to 500 μm.
Dependencies are inferred from the claim text.