Title:
METHOD FOR SEPARATING/RECOVERING BASE
Document Type and Number:
WIPO Patent Application WO/2024/075371
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a method for efficiently separating/recovering a base from a layered body obtained by layering a support body, an adhesive layer, and the base in this order. The problem can be solved by providing a method for separating/recovering a base from a layered body obtained by layering a support body, an adhesive layer, and the base in this order. The method is characterized in that: the support body is an air permeable film or a nonwoven fabric having a Gurley permeability of 10 to 1000 sec/100 mL; the method includes a step for immersing the layered body in a separation liquid to separate the base from the adhesive layer; the pH of the separation liquid at 25°C is 13.3 or higher; and the dynamic surface tension of the separation liquid at 1000 msec when measured at 25°C is 60 mN/m or less.
Inventors:
FURUNO HIROYUKI (JP)
WATANABE TATSUYA (JP)
WATANABE TATSUYA (JP)
Application Number:
PCT/JP2023/027358
Publication Date:
April 11, 2024
Filing Date:
July 26, 2023
Export Citation:
Assignee:
ARTIENCE CO LTD (JP)
TOYOCHEM CO LTD (JP)
TOYO INK CO LTD (JP)
TOYO MORTON LTD (JP)
TOYOCHEM CO LTD (JP)
TOYO INK CO LTD (JP)
TOYO MORTON LTD (JP)
International Classes:
C09J133/02; C09J5/00; C09J7/38
Foreign References:
| JP2010043226A | 2010-02-25 | |||
| JP2003241669A | 2003-08-29 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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