The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2025
Filed:
Feb. 24, 2022
Applicant:
Dic Corporation, Tokyo, JP;
Inventor:
Yasuhiro Sente, Tokyo, JP;
Assignee:
DIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 9/00 (2006.01); B29B 17/02 (2006.01); C09D 9/04 (2006.01); B29B 17/04 (2006.01);
U.S. Cl.
CPC ...
C09D 9/04 (2013.01); B29B 17/02 (2013.01); B29B 2017/0468 (2013.01);
Abstract
The invention provides a deinking method including a step of peeling off and removing, from a plastic substrate having an ink layer, the ink layer by using a deinking agent that contains (a) 20 mass % or more of a water-soluble solvent and (b) 0.1 mass % to 10 mass % of an inorganic base. According to the invention, it is possible to provide a deinking method that can easily peel off an ink layer printed on a plastic substrate, a deinking agent that can be used in the deinking method, and a plastic substrate recovery method using the same.