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:
Mar. 16, 2021
Filed:
Jan. 23, 2020
Dic Corporation, Tokyo, JP;
National University Corporation, Iwate University, Morioka, JP;
Shun Araki, Ichihara, JP;
Hajime Watanabe, Ichihara, JP;
Satoshi Ogawa, Morioka, JP;
Toshikazu Takata, Tokyo, JP;
DIC Corporation, Tokyo, JP;
National University Corporation, Iwate University, Morioka, JP;
Abstract
Disclosed is a production method comprising a step of obtaining a poly(arylene sulfonium salt) comprising a terminal group including at least one functional group selected from the group consisting of a carboxy group, a hydroxy group and an amino group, and a step of dealkylating or dearylating the poly(arylene sulfonium salt) to obtain a polyarylene sulfide resin, and a polyarylene sulfide resin comprising a terminal group including a functional group obtainable by the production method.