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:
Jun. 09, 2020
Filed:
Dec. 06, 2016
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventor:
Yusaku Kohinata, Tsukuba, JP;
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G 75/23 (2006.01); C08G 65/42 (2006.01); C08G 75/20 (2016.01); C08G 85/00 (2006.01);
U.S. Cl.
CPC ...
C08G 75/23 (2013.01); C08G 65/42 (2013.01); C08G 75/20 (2013.01); C08G 85/002 (2013.01);
Abstract
An aromatic polysulfone resin having a yellowness index of 50 or higher and a weight average molecular weight of 25,000 to 45,000 is provided.