Title:
READILY ADHESIVE POLYESTER FILM
Document Type and Number:
WIPO Patent Application WO/2024/058011
Kind Code:
A1
Abstract:
[Problem] To provide a readily adhesive polyester film having enhanced adhesion between a hard coat layer or a functional layer of adhesive, etc. and a polyester film constituting a base material, and also provide a readily adhesive polyester film suitably used for optical applications, etc.
[Solution] This readily adhesive polyester film has an application layer on at least one surface of a polyester film, wherein the application layer is formed from a composition containing a blocked-isocyanate-based crosslinking agent selected from allophanates, biurets, and adducts of polycarbonate polyurethane and hexamethylene diisocyanate, and the content of a n-hexamethylene chain present at the α-position of the carbonate linkage in the polycarbonate polyurethane is 3-20 mass% with respect to the mass of the polycarbonate polyurethane.
Inventors:
EJIMA AKINORI (JP)
TAKI HIROSHI (JP)
NISHIMOTO AKIRA (JP)
TAKII ISAO (JP)
TAKI HIROSHI (JP)
NISHIMOTO AKIRA (JP)
TAKII ISAO (JP)
Application Number:
PCT/JP2023/032402
Publication Date:
March 21, 2024
Filing Date:
September 05, 2023
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B32B27/36; B32B27/40; C08J7/043; C09D175/04; G02B1/04; G02B5/30
Domestic Patent References:
| WO2018105261A1 | 2018-06-14 |
Foreign References:
| JP2021088408A | 2021-06-10 | |||
| JP2021075632A | 2021-05-20 | |||
| JP2008163312A | 2008-07-17 | |||
| JP2008063395A | 2008-03-21 | |||
| US20210230448A1 | 2021-07-29 | |||
| US20150191626A1 | 2015-07-09 | |||
| JP2010260942A | 2010-11-18 | |||
| JP7100750B1 | 2022-07-13 |
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