Title:
LAMINATED FILM AND METHOD FOR MANUFACTURING LAMINATED FILM
Document Type and Number:
WIPO Patent Application WO/2022/186184
Kind Code:
A1
Abstract:
[Problem] To provide a laminated film that can provide a resin sheet having both high smoothness and good lubricity. [Solution] This laminated film has a polyester base material film, a release layer, and a resin sheet disposed on the opposite surface of the release layer to the base material. The resin sheet is obtained by curing a resin sheet-forming composition containing a resin component (A) and a crosslinking agent (B). The resin sheet contains substantially no particles. The film thickness (t1) of the resin sheet is 1-20 μm. The arithmetic average height (Sa) of a surface (1) of the resin sheet is 2-30 nm. The indentation modulus of elasticity (E1) of a surface (1) of the resin sheet is at least 2.0 MPa. The indentation modulus of elasticity (E2) of a surface (2) of the resin sheet is at least 2.0 MPa. The absolute value of the difference between E1 and E2 is at most 1.5. The coefficient of static friction, as measured when the surface (1) of the resin sheet (1) on the opposite side to the release layer surface is overlaid on the surface (2) of the resin sheet on the side of the release layer, is at most 1.5.
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Inventors:
NAKATANI MITSUHARU (JP)
SUGIMOTO YUKA (JP)
ONO YUJI (JP)
MORI KENICHI (JP)
SUGIMOTO YUKA (JP)
ONO YUJI (JP)
MORI KENICHI (JP)
Application Number:
PCT/JP2022/008541
Publication Date:
September 09, 2022
Filing Date:
March 01, 2022
Export Citation:
Assignee:
TOYO BOSEKI (JP)
International Classes:
B32B27/36; B32B7/06; C08J5/18
Domestic Patent References:
| WO2021005823A1 | 2021-01-14 | |||
| WO2019082664A1 | 2019-05-02 |
Foreign References:
| JP2011002820A | 2011-01-06 | |||
| JP2009227735A | 2009-10-08 |
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