Title:
MULTILAYER POLYESTER FILM
Document Type and Number:
WIPO Patent Application WO/2015/098477
Kind Code:
A1
Abstract:
A multilayer polyester film which has a resin layer (X) on at least one surface of a polyester film, and which is characterized in that: the resin layer (X) comprises an acrylic structure (A), a urethane structure (B) and a naphthalene structure (C), but does not comprise a carbodiimide structure (G); and the spectral reflectance change (∆R) between before and after a boiling test on the resin layer (X) side is from 0% to 2% (inclusive).
The present invention provides a multilayer polyester film which exhibits excellent transparency and excellent suppression of iris-like patterns (interference patterns) (excellent visibility) in cases where a hard coat layer is laminated thereon, while having excellent initial adhesiveness to a hard coat layer, excellent adhesion at high temperatures and high humidities (wet heat-resistant adhesiveness) and excellent adhesiveness in cases where the film is immersed in boiling water (boiling-resistant adhesiveness). In addition, this multilayer polyester film exhibits excellent hot water-resistant transparency in cases where the film is immersed in hot water.
Inventors:
SAWAMOTO KEIKO (JP)
TAKADA YASUSHI (JP)
ABE YU (JP)
OGATA MASAMI (JP)
OTA KAZUYOSHI (JP)
TAKADA YASUSHI (JP)
ABE YU (JP)
OGATA MASAMI (JP)
OTA KAZUYOSHI (JP)
Application Number:
PCT/JP2014/082408
Publication Date:
July 02, 2015
Filing Date:
December 08, 2014
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B32B27/36; C09D7/12; C09D167/00; C09D175/04
Domestic Patent References:
| WO2012020722A1 | 2012-02-16 | |||
| WO2011152173A1 | 2011-12-08 | |||
| WO2013115123A1 | 2013-08-08 | |||
| WO2007032295A1 | 2007-03-22 |
Foreign References:
| JP2009234009A | 2009-10-15 | |||
| JP2012187823A | 2012-10-04 | |||
| JPH079633A | 1995-01-13 | |||
| JPH04348941A | 1992-12-03 | |||
| JP2002053687A | 2002-02-19 |
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