Title:
PROTECTIVE FILM-EQUIPPED WRITING-PERFORMANCE ENHANCEMENT FILM
Document Type and Number:
WIPO Patent Application WO/2023/188544
Kind Code:
A1
Abstract:
The present invention is a protective film-equipped writing-performance enhancement film obtained by laminating a protective film onto at least one surface of a writing-performance enhancement film comprising a writing-performance enhancement film base material layer and a writing performance-enhancement layer. The protective film-equipped writing performance-enhancement film is characterized in that the relational expression of -6.5 < (α - β) < 6.5 is satisfied when the linear expansion coefficient of the writing performance-enhancement film is α (×10-5/K), and the linear expansion coefficient of the protective film is β (×10-5/K). According to the present invention, provided is a protective film-equipped writing-performance enhancement film that does not curl even when exposed to temperature changes during storage, transport, and processing, and for which the quality of the writing-performance enhancement film is maintained.
More Like This:
| WO/2012/006502 | COMPOSITE FILMS FOR PACKAGING FRESH RED MEAT AND FISH |
| JP5760572 | Double-sided adhesive tape |
| JP4778175 | Container cap with liner |
Inventors:
NAKANISHI MINAMI (JP)
HOSHINO HIROKI (JP)
HOSHINO HIROKI (JP)
Application Number:
PCT/JP2022/044509
Publication Date:
October 05, 2023
Filing Date:
December 02, 2022
Export Citation:
Assignee:
LINTEC CORP (JP)
International Classes:
B32B27/00; B32B7/027; G06F3/041
Domestic Patent References:
| WO2018221490A1 | 2018-12-06 | |||
| WO2022044426A1 | 2022-03-03 |
Foreign References:
| JP2006206782A | 2006-08-10 | |||
| JP2020102362A | 2020-07-02 | |||
| JP2018173906A | 2018-11-08 |
Attorney, Agent or Firm:
OHISHI Haruhito et al. (JP)
Download PDF: