Title:
LAMINATED POLYESTER FILM
Document Type and Number:
WIPO Patent Application WO/2014/024570
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a laminated polyester film which has excellent translucency and excellent suppression of an iris-like pattern (interference fringe), i.e., excellent visibility, when a hard coat layer is laminated; has excellent initial adhesion to the hard coat layer, adhesiveness at high temperatures and high humidity (wet heat-resistant adhesion), and UV-resistant adhesion (adhesion after UV irradiation); and has excellent adhesion when immersed in boiling water (boiling-resistant adhesion) and boiling-resistant translucency. This objective is achieved by a laminated polyester film having a resin layer (X) on at least one surface of a polyester film, wherein the resin layer (X) is formed from a coating composition comprising an acrylic/urethane copolymer resin (a) and a polyester resin (b) having a naphthalene backbone, and the film haze change amount (ΔHz) before and after a boiling treatment test (ΔHz = the film haze after the boiling treatment test - the film haze before the boiling treatment test) is less than 3.0%.
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Inventors:
ABE YU (JP)
OGATA MASAMI (JP)
TAKADA YASUSHI (JP)
OGATA MASAMI (JP)
TAKADA YASUSHI (JP)
Application Number:
PCT/JP2013/066794
Publication Date:
February 13, 2014
Filing Date:
June 19, 2013
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B32B27/36; C08G63/189; C08J7/043; C08J7/046; C08J7/056; C09D7/12; C09D167/00; C09D175/14; G02B1/10
Foreign References:
| JP2009234009A | 2009-10-15 | |||
| JP2011245809A | 2011-12-08 | |||
| JP2008209681A | 2008-09-11 |
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