Title:
MULTILAYER FILM
Document Type and Number:
WIPO Patent Application WO/2023/243692
Kind Code:
A1
Abstract:
The present invention provides a multilayer film which has a resin layer in at least one surface, and which is characterized in that: the resin layer satisfies at least one of the features A to C described below; and if Xs and Xc are the positive secondary ion normalized intensities of GCIB-TOF-SIMS of each component at the positions corresponding to 20% and 50% of the thickness from the surface layer of the resin layer, all components satisfy 0.5 ≤ Xs/Xc ≤ 2.0. Feature A: All of an acrylic resin, a polyester resin and a urethane resin are contained. Feature B: An acrylic modified polyester resin and a urethane resin are contained. Feature C: All of an acrylic skeleton, a polyester skeleton and a urethane skeleton are contained. Consequently, the present invention provides a multilayer film which is excellent in terms of versatile adhesiveness to various functional materials, thereby achieving high adhesion to a functional material regardless of the temperature at which the multilayer film is used, in particular, in a low temperature environment (below the freezing point).
Inventors:
SAWAMOTO KEIKO (JP)
MASUDA YOSHIHIRO (JP)
UTO TAKAYUKI (JP)
MASUDA YOSHIHIRO (JP)
UTO TAKAYUKI (JP)
Application Number:
PCT/JP2023/022293
Publication Date:
December 21, 2023
Filing Date:
June 15, 2023
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B32B27/30; B32B27/36; B32B27/40; C08F2/44; C08F283/02; C08J7/043
Domestic Patent References:
| WO2016052133A1 | 2016-04-07 | |||
| WO2014156726A1 | 2014-10-02 | |||
| WO2014024570A1 | 2014-02-13 |
Foreign References:
| JP2014144600A | 2014-08-14 | |||
| JP2007301982A | 2007-11-22 | |||
| JP2016064974A | 2016-04-28 |
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