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:
Jul. 19, 2022
Filed:
Mar. 27, 2018
Sumitomo Chemical Company, Limited, Tokyo, JP;
Kazuyuki Ito, Tsukuba, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
An aromatic polysulfone includes an amino group-containing aromatic polysulfone containing a repeating unit represented by the following general formula (A) and having an amino group at a polymer chain end. The aromatic polysulfone has a weight average absolute molecular weight (Mw) of 20,000 g/mol or more and a reduced viscosity (unit: dL/g) of 0.30 or more.-Ph1-SO-Ph2-O—  (A) In formula (A), Ph1 and Ph2 are each independently a phenylene group which may have a substituent.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile