Title:
COVER FILM
Document Type and Number:
WIPO Patent Application WO/2023/054029
Kind Code:
A1
Abstract:
The present invention provides a cover film having exceptional storage stability. The present invention has a cellulose acetate support and a polymer-containing polymer layer, the support containing an additive A other than cellulose acetate, and the present invention being such that when one type of additive A is contained, the molecular weight of the one type of additive A is 500 or greater, and when two or more types of additives A are contained, the average molecular weight of the two or more types of additives A is 500 or greater.
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Inventors:
SUZUKI TAKATO (JP)
HARA MIYOKO (JP)
SASADA YASUYUKI (JP)
HARA MIYOKO (JP)
SASADA YASUYUKI (JP)
Application Number:
PCT/JP2022/034797
Publication Date:
April 06, 2023
Filing Date:
September 16, 2022
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
B32B23/08; C08J7/04
Foreign References:
| JP2008003506A | 2008-01-10 | |||
| JP2004506228A | 2004-02-26 | |||
| JPH11101943A | 1999-04-13 | |||
| JP2008003506A | 2008-01-10 | |||
| JP2015227955A | 2015-12-17 | |||
| US20180194913A1 | 2018-07-12 | |||
| JP2020105336A | 2020-07-09 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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