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:
Oct. 20, 2026
Filed:
Dec. 02, 2021
Central Glass Company, Limited, Ube, JP;
Central Glass Company, Limited, Ube, JP;
Abstract
Provided is a fluorine-containing polymer for use in a film-forming solution capable of forming a film that is less likely to leave a residue when immersed in a developer. The fluorine-containing polymer of the present invention contains a repeating unit represented by the following formula (1), and a repeating unit represented by the following formula (2) in an amount, expressed in parts per million based on a mass of the repeating unit of formula (1), of 1500 ppm or less: wherein Rand Rare each independently a hydrogen atom, a methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, or t-butyl group; Rand Rare each independently a hydrogen atom, a methyl group, or an ethyl group; Ris a hydrogen atom or a trifluoromethyl group; and Ris a hydrogen atom, a chlorine atom, a methyl group, or a trifluoromethyl group.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile