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:
Sep. 05, 2023
Filed:
Jun. 23, 2022
Jsr Corporation, Tokyo, JP;
Ryo Kumegawa, Tokyo, JP;
Sosuke Osawa, Tokyo, JP;
Miki Tamada, Tokyo, JP;
Ken Maruyama, Tokyo, JP;
Motohiro Shiratani, Tokyo, JP;
JSR CORPORATION, Tokyo, JP;
Abstract
A method for producing a film includes: coating a surface of a substrate with a composition containing a polymer having a structural unit represented by formula (1) and having a number average molecular weight of 13000 or more and a solvent, heating a coating film formed by the coating, and removing, with a rinsing liquid, a part of the coating film after the heating, wherein the rinsing liquid to be used contains a basic compound. In the formula (1), Yis a single bond, —CO—NR—, a divalent aromatic ring group, a divalent group containing —O—, or a divalent group containing —CO—NR—. Ais a single bond, —O—, —S—, or —NR—. Ris a hydrogen atom, a monovalent hydrocarbon group, a monovalent halogenated hydrocarbon group, or a monovalent group having a heterocyclic structure.