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:
Nov. 07, 2023
Filed:
Sep. 20, 2019
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventor:
Kazuyuki Ito, Tsukuba, JP;
Assignee:
SUMITOMO CHEMICAL COMPNAY, LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 75/23 (2006.01); C08L 81/06 (2006.01);
U.S. Cl.
CPC ...
C08G 75/23 (2013.01); C08L 81/06 (2013.01); C08L 2201/08 (2013.01); C08L 2203/30 (2013.01);
Abstract
A poly(biphenyl ether sulfone) resin substantially comprising a repeating structure of the following formula (1), wherein a polystyrene equivalent mass average molecular weight Mw and a melt viscosity μ at a temperature of 350° C. satisfy formulas (6) and (7),