LAMINATED POLYESTER FILM

PROBLEM TO BE SOLVED: To provide a base film of polyester that is excellent in appearances such as the rainbow unevenness and the foreign matter, excels in the adhesion with hard coat, without a destruction in the film substrate in an initial rapid peel test and the wet heat environment of the overl...

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Bibliographic Details
Main Authors AKATSU KAZUYUKI, UENO TOMOHISA
Format Patent
LanguageEnglish
Published 04.07.2013
Subjects
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
PERFORMING OPERATIONS
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide a base film of polyester that is excellent in appearances such as the rainbow unevenness and the foreign matter, excels in the adhesion with hard coat, without a destruction in the film substrate in an initial rapid peel test and the wet heat environment of the overload, as a hard coat film for the optics of the icon sheet touch panel etc. and a decorative hard coat film used for construction application.SOLUTION: The laminated polyester film is a laminated film which has at lease a coating layer on one surface of the film that comprises polyethylene terephthalate that contains the third component of 0.5-7.0 mol%. In the laminated film, the intrinsic viscosity is 0.50-0.76, the refractive index nα of thickness direction is 1.492 or more, and haze is 2.0% or less.
Bibliography:Application Number: JP20120226271