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. 02, 2025
Filed:
Nov. 17, 2020
Applicant:
Syensqo Specialty Polymers Usa, Llc, Alpharetta, GA (US);
Inventors:
Atul Bhatnagar, Alpharetta, GA (US);
Gregory Goschy, Cumming, GA (US);
Chantal Louis, Alpharetta, GA (US);
David B. Thomas, Milton, GA (US);
Assignee:
SYENSQO SPECIALTY POLYMERS USA, LLC, Alpharetta, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 75/23 (2006.01); C08G 75/0204 (2016.01); C08G 75/025 (2016.01); C08L 81/06 (2006.01);
U.S. Cl.
CPC ...
C08G 75/23 (2013.01); C08G 75/0204 (2013.01); C08G 75/025 (2013.01); C08L 81/06 (2013.01);
Abstract
The present invention relates to a process for preparing a polysulfone (PSU) polymer having a low yellowness index (YI). The present disclosure also relates to a PSU obtained from this process, as well as to articles incorporating this PSU.